feat: add more disk I/O metrics (#1866)

Co-authored-by: henrygd <hank@henrygd.me>

agent/disk.go

@@ -34,6 +34,34 @@ type diskDiscovery struct {
 	ctx            fsRegistrationContext
 }
 
+// prevDisk stores previous per-device disk counters for a given cache interval
+type prevDisk struct {
+	readBytes  uint64
+	writeBytes uint64
+	readTime   uint64 // cumulative ms spent on reads (from ReadTime)
+	writeTime  uint64 // cumulative ms spent on writes (from WriteTime)
+	ioTime     uint64 // cumulative ms spent doing I/O (from IoTime)
+	weightedIO uint64 // cumulative weighted ms (queue-depth × ms, from WeightedIO)
+	readCount  uint64 // cumulative read operation count
+	writeCount uint64 // cumulative write operation count
+	at         time.Time
+}
+
+// prevDiskFromCounter creates a prevDisk snapshot from a disk.IOCountersStat at time t.
+func prevDiskFromCounter(d disk.IOCountersStat, t time.Time) prevDisk {
+	return prevDisk{
+		readBytes:  d.ReadBytes,
+		writeBytes: d.WriteBytes,
+		readTime:   d.ReadTime,
+		writeTime:  d.WriteTime,
+		ioTime:     d.IoTime,
+		weightedIO: d.WeightedIO,
+		readCount:  d.ReadCount,
+		writeCount: d.WriteCount,
+		at:         t,
+	}
+}
+
 // parseFilesystemEntry parses a filesystem entry in the format "device__customname"
 // Returns the device/filesystem part and the custom name part
 func parseFilesystemEntry(entry string) (device, customName string) {
@@ -581,16 +609,29 @@ func (a *Agent) updateDiskIo(cacheTimeMs uint16, systemStats *system.Stats) {
 			prev, hasPrev := a.diskPrev[cacheTimeMs][name]
 			if !hasPrev {
 				// Seed from agent-level fsStats if present, else seed from current
-				prev = prevDisk{readBytes: stats.TotalRead, writeBytes: stats.TotalWrite, at: stats.Time}
+				prev = prevDisk{
+					readBytes:  stats.TotalRead,
+					writeBytes: stats.TotalWrite,
+					readTime:   d.ReadTime,
+					writeTime:  d.WriteTime,
+					ioTime:     d.IoTime,
+					weightedIO: d.WeightedIO,
+					readCount:  d.ReadCount,
+					writeCount: d.WriteCount,
+					at:         stats.Time,
+				}
 				if prev.at.IsZero() {
-					prev = prevDisk{readBytes: d.ReadBytes, writeBytes: d.WriteBytes, at: now}
+					prev = prevDiskFromCounter(d, now)
 				}
 			}
 
 			msElapsed := uint64(now.Sub(prev.at).Milliseconds())
+
+			// Update per-interval snapshot
+			a.diskPrev[cacheTimeMs][name] = prevDiskFromCounter(d, now)
+
+			// Avoid division by zero or clock issues
 			if msElapsed < 100 {
-				// Avoid division by zero or clock issues; update snapshot and continue
-				a.diskPrev[cacheTimeMs][name] = prevDisk{readBytes: d.ReadBytes, writeBytes: d.WriteBytes, at: now}
 				continue
 			}
 
@@ -602,15 +643,38 @@ func (a *Agent) updateDiskIo(cacheTimeMs uint16, systemStats *system.Stats) {
 			// validate values
 			if readMbPerSecond > 50_000 || writeMbPerSecond > 50_000 {
 				slog.Warn("Invalid disk I/O. Resetting.", "name", d.Name, "read", readMbPerSecond, "write", writeMbPerSecond)
-				// Reset interval snapshot and seed from current
-				a.diskPrev[cacheTimeMs][name] = prevDisk{readBytes: d.ReadBytes, writeBytes: d.WriteBytes, at: now}
 				// also refresh agent baseline to avoid future negatives
 				a.initializeDiskIoStats(ioCounters)
 				continue
 			}
 
-			// Update per-interval snapshot
+			// These properties are calculated differently on different platforms,
-			a.diskPrev[cacheTimeMs][name] = prevDisk{readBytes: d.ReadBytes, writeBytes: d.WriteBytes, at: now}
+			// but generally represent cumulative time spent doing reads/writes on the device.
+			// This can surpass 100% if there are multiple concurrent I/O operations.
+			// Linux kernel docs:
+			// This is the total number of milliseconds spent by all reads (as
+			// measured from __make_request() to end_that_request_last()).
+			// https://www.kernel.org/doc/Documentation/iostats.txt (fields 4, 8)
+			diskReadTime := utils.TwoDecimals(float64(d.ReadTime-prev.readTime) / float64(msElapsed) * 100)
+			diskWriteTime := utils.TwoDecimals(float64(d.WriteTime-prev.writeTime) / float64(msElapsed) * 100)
+
+			// I/O utilization %: fraction of wall time the device had any I/O in progress (0-100).
+			diskIoUtilPct := utils.TwoDecimals(float64(d.IoTime-prev.ioTime) / float64(msElapsed) * 100)
+
+			// Weighted I/O: queue-depth weighted I/O time, normalized to interval (can exceed 100%).
+			// Linux kernel field 11: incremented by iops_in_progress × ms_since_last_update.
+			// Used to display queue depth. Multipled by 100 to increase accuracy of digit truncation (divided by 100 in UI).
+			diskWeightedIO := utils.TwoDecimals(float64(d.WeightedIO-prev.weightedIO) / float64(msElapsed) * 100)
+
+			// r_await / w_await: average time per read/write operation in milliseconds.
+			// Equivalent to r_await and w_await in iostat.
+			var rAwait, wAwait float64
+			if deltaReadCount := d.ReadCount - prev.readCount; deltaReadCount > 0 {
+				rAwait = utils.TwoDecimals(float64(d.ReadTime-prev.readTime) / float64(deltaReadCount))
+			}
+			if deltaWriteCount := d.WriteCount - prev.writeCount; deltaWriteCount > 0 {
+				wAwait = utils.TwoDecimals(float64(d.WriteTime-prev.writeTime) / float64(deltaWriteCount))
+			}
 
 			// Update global fsStats baseline for cross-interval correctness
 			stats.Time = now
@@ -620,12 +684,24 @@ func (a *Agent) updateDiskIo(cacheTimeMs uint16, systemStats *system.Stats) {
 			stats.DiskWritePs = writeMbPerSecond
 			stats.DiskReadBytes = diskIORead
 			stats.DiskWriteBytes = diskIOWrite
+			stats.DiskIoStats[0] = diskReadTime
+			stats.DiskIoStats[1] = diskWriteTime
+			stats.DiskIoStats[2] = diskIoUtilPct
+			stats.DiskIoStats[3] = rAwait
+			stats.DiskIoStats[4] = wAwait
+			stats.DiskIoStats[5] = diskWeightedIO
 
 			if stats.Root {
 				systemStats.DiskReadPs = stats.DiskReadPs
 				systemStats.DiskWritePs = stats.DiskWritePs
 				systemStats.DiskIO[0] = diskIORead
 				systemStats.DiskIO[1] = diskIOWrite
+				systemStats.DiskIoStats[0] = diskReadTime
+				systemStats.DiskIoStats[1] = diskWriteTime
+				systemStats.DiskIoStats[2] = diskIoUtilPct
+				systemStats.DiskIoStats[3] = rAwait
+				systemStats.DiskIoStats[4] = wAwait
+				systemStats.DiskIoStats[5] = diskWeightedIO
 			}
 		}
 	}

agent/system.go

@@ -8,7 +8,6 @@ import (
 	"os"
 	"runtime"
 	"strings"
-	"time"
 
 	"github.com/henrygd/beszel"
 	"github.com/henrygd/beszel/agent/battery"
@@ -23,13 +22,6 @@ import (
 	"github.com/shirou/gopsutil/v4/mem"
 )
 
-// prevDisk stores previous per-device disk counters for a given cache interval
-type prevDisk struct {
-	readBytes  uint64
-	writeBytes uint64
-	at         time.Time
-}
-
 // Sets initial / non-changing values about the host system
 func (a *Agent) refreshSystemDetails() {
 	a.systemInfo.AgentVersion = beszel.Version

internal/entities/system/system.go

@@ -48,6 +48,8 @@ type Stats struct {
 	MaxDiskIO         [2]uint64            `json:"diom,omitzero" cbor:"-"`                      // [max read bytes, max write bytes]
 	CpuBreakdown      []float64            `json:"cpub,omitempty" cbor:"33,keyasint,omitempty"` // [user, system, iowait, steal, idle]
 	CpuCoresUsage     Uint8Slice           `json:"cpus,omitempty" cbor:"34,keyasint,omitempty"` // per-core busy usage [CPU0..]
+	DiskIoStats       [6]float64           `json:"dios,omitzero" cbor:"35,keyasint,omitzero"`   // [read time %, write time %, io utilization %, r_await ms, w_await ms, weighted io %]
+	MaxDiskIoStats    [6]float64           `json:"diosm,omitzero" cbor:"-"`                     // max values for DiskIoStats
 }
 
 // Uint8Slice wraps []uint8 to customize JSON encoding while keeping CBOR efficient.
@@ -93,10 +95,12 @@ type FsStats struct {
 	MaxDiskReadPS  float64   `json:"rm,omitempty" cbor:"-"`
 	MaxDiskWritePS float64   `json:"wm,omitempty" cbor:"-"`
 	// TODO: remove DiskReadPs and DiskWritePs in future release in favor of DiskReadBytes and DiskWriteBytes
-	DiskReadBytes     uint64 `json:"rb" cbor:"6,keyasint,omitempty"`
+	DiskReadBytes     uint64     `json:"rb" cbor:"6,keyasint,omitempty"`
-	DiskWriteBytes    uint64 `json:"wb" cbor:"7,keyasint,omitempty"`
+	DiskWriteBytes    uint64     `json:"wb" cbor:"7,keyasint,omitempty"`
-	MaxDiskReadBytes  uint64 `json:"rbm,omitempty" cbor:"-"`
+	MaxDiskReadBytes  uint64     `json:"rbm,omitempty" cbor:"-"`
-	MaxDiskWriteBytes uint64 `json:"wbm,omitempty" cbor:"-"`
+	MaxDiskWriteBytes uint64     `json:"wbm,omitempty" cbor:"-"`
+	DiskIoStats       [6]float64 `json:"dios,omitzero" cbor:"8,keyasint,omitzero"` // [read time %, write time %, io utilization %, r_await ms, w_await ms, weighted io %]
+	MaxDiskIoStats    [6]float64 `json:"diosm,omitzero" cbor:"-"`                  // max values for DiskIoStats
 }
 
 type NetIoStats struct {

internal/records/records.go

@@ -230,6 +230,9 @@ func (rm *RecordManager) AverageSystemStats(db dbx.Builder, records RecordIds) *
 		sum.Bandwidth[1] += stats.Bandwidth[1]
 		sum.DiskIO[0] += stats.DiskIO[0]
 		sum.DiskIO[1] += stats.DiskIO[1]
+		for i := range stats.DiskIoStats {
+			sum.DiskIoStats[i] += stats.DiskIoStats[i]
+		}
 		batterySum += int(stats.Battery[0])
 		sum.Battery[1] = stats.Battery[1]
 
@@ -254,6 +257,9 @@ func (rm *RecordManager) AverageSystemStats(db dbx.Builder, records RecordIds) *
 		sum.MaxBandwidth[1] = max(sum.MaxBandwidth[1], stats.MaxBandwidth[1], stats.Bandwidth[1])
 		sum.MaxDiskIO[0] = max(sum.MaxDiskIO[0], stats.MaxDiskIO[0], stats.DiskIO[0])
 		sum.MaxDiskIO[1] = max(sum.MaxDiskIO[1], stats.MaxDiskIO[1], stats.DiskIO[1])
+		for i := range stats.DiskIoStats {
+			sum.MaxDiskIoStats[i] = max(sum.MaxDiskIoStats[i], stats.MaxDiskIoStats[i], stats.DiskIoStats[i])
+		}
 
 		// Accumulate network interfaces
 		if sum.NetworkInterfaces == nil {
@@ -299,6 +305,10 @@ func (rm *RecordManager) AverageSystemStats(db dbx.Builder, records RecordIds) *
 				fs.DiskWriteBytes += value.DiskWriteBytes
 				fs.MaxDiskReadBytes = max(fs.MaxDiskReadBytes, value.MaxDiskReadBytes, value.DiskReadBytes)
 				fs.MaxDiskWriteBytes = max(fs.MaxDiskWriteBytes, value.MaxDiskWriteBytes, value.DiskWriteBytes)
+				for i := range value.DiskIoStats {
+					fs.DiskIoStats[i] += value.DiskIoStats[i]
+					fs.MaxDiskIoStats[i] = max(fs.MaxDiskIoStats[i], value.MaxDiskIoStats[i], value.DiskIoStats[i])
+				}
 			}
 		}
 
@@ -350,6 +360,9 @@ func (rm *RecordManager) AverageSystemStats(db dbx.Builder, records RecordIds) *
 		sum.DiskWritePs = twoDecimals(sum.DiskWritePs / count)
 		sum.DiskIO[0] = sum.DiskIO[0] / uint64(count)
 		sum.DiskIO[1] = sum.DiskIO[1] / uint64(count)
+		for i := range sum.DiskIoStats {
+			sum.DiskIoStats[i] = twoDecimals(sum.DiskIoStats[i] / count)
+		}
 		sum.NetworkSent = twoDecimals(sum.NetworkSent / count)
 		sum.NetworkRecv = twoDecimals(sum.NetworkRecv / count)
 		sum.LoadAvg[0] = twoDecimals(sum.LoadAvg[0] / count)
@@ -388,6 +401,9 @@ func (rm *RecordManager) AverageSystemStats(db dbx.Builder, records RecordIds) *
 				fs.DiskReadPs = twoDecimals(fs.DiskReadPs / count)
 				fs.DiskReadBytes = fs.DiskReadBytes / uint64(count)
 				fs.DiskWriteBytes = fs.DiskWriteBytes / uint64(count)
+				for i := range fs.DiskIoStats {
+					fs.DiskIoStats[i] = twoDecimals(fs.DiskIoStats[i] / count)
+				}
 			}
 		}
 

internal/site/src/components/charts/area-chart.tsx

@@ -41,8 +41,8 @@ export default function AreaChartDefault({
 	hideYAxis = false,
 	filter,
 	truncate = false,
-}: // logRender = false,
+	chartProps,
-{
+}: {
 	chartData: ChartData
 	// biome-ignore lint/suspicious/noExplicitAny: accepts different data source types (systemStats or containerData)
 	customData?: any[]
@@ -62,7 +62,7 @@ export default function AreaChartDefault({
 	hideYAxis?: boolean
 	filter?: string
 	truncate?: boolean
-	// logRender?: boolean
+	chartProps?: Omit<React.ComponentProps<typeof AreaChart>, "data" | "margin">
 }) {
 	const { yAxisWidth, updateYAxisWidth } = useYAxisWidth()
 	const { isIntersecting, ref } = useIntersectionObserver({ freeze: false })
@@ -131,6 +131,7 @@ export default function AreaChartDefault({
 					accessibilityLayer
 					data={displayData}
 					margin={hideYAxis ? { ...chartMargin, left: 5 } : chartMargin}
+					{...chartProps}
 				>
 					<CartesianGrid vertical={false} />
 					{!hideYAxis && (

internal/site/src/components/charts/line-chart.tsx

@@ -40,8 +40,8 @@ export default function LineChartDefault({
 	hideYAxis = false,
 	filter,
 	truncate = false,
-}: // logRender = false,
+	chartProps,
-{
+}: {
 	chartData: ChartData
 	// biome-ignore lint/suspicious/noExplicitAny: accepts different data source types (systemStats or containerData)
 	customData?: any[]
@@ -61,7 +61,7 @@ export default function LineChartDefault({
 	hideYAxis?: boolean
 	filter?: string
 	truncate?: boolean
-	// logRender?: boolean
+	chartProps?: Omit<React.ComponentProps<typeof LineChart>, "data" | "margin">
 }) {
 	const { yAxisWidth, updateYAxisWidth } = useYAxisWidth()
 	const { isIntersecting, ref } = useIntersectionObserver({ freeze: false })
@@ -130,6 +130,7 @@ export default function LineChartDefault({
 					accessibilityLayer
 					data={displayData}
 					margin={hideYAxis ? { ...chartMargin, left: 5 } : chartMargin}
+					{...chartProps}
 				>
 					<CartesianGrid vertical={false} />
 					{!hideYAxis && (

internal/site/src/components/routes/system.tsx

@@ -1,18 +1,16 @@
 import { memo, useState } from "react"
 import { Trans } from "@lingui/react/macro"
 import { compareSemVer, parseSemVer } from "@/lib/utils"
-
 import type { GPUData } from "@/types"
 import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs"
 import InfoBar from "./system/info-bar"
 import { useSystemData } from "./system/use-system-data"
 import { CpuChart, ContainerCpuChart } from "./system/charts/cpu-charts"
 import { MemoryChart, ContainerMemoryChart, SwapChart } from "./system/charts/memory-charts"
-import { DiskCharts } from "./system/charts/disk-charts"
+import { RootDiskCharts, ExtraFsCharts } from "./system/charts/disk-charts"
 import { BandwidthChart, ContainerNetworkChart } from "./system/charts/network-charts"
 import { TemperatureChart, BatteryChart } from "./system/charts/sensor-charts"
 import { GpuPowerChart, GpuDetailCharts } from "./system/charts/gpu-charts"
-import { ExtraFsCharts } from "./system/charts/extra-fs-charts"
 import { LazyContainersTable, LazySmartTable, LazySystemdTable } from "./system/lazy-tables"
 import { LoadAverageChart } from "./system/charts/load-average-chart"
 import { ContainerIcon, CpuIcon, HardDriveIcon, TerminalSquareIcon } from "lucide-react"
@@ -24,6 +22,8 @@ const SEMVER_0_14_0 = parseSemVer("0.14.0")
 const SEMVER_0_15_0 = parseSemVer("0.15.0")
 
 export default memo(function SystemDetail({ id }: { id: string }) {
+	const systemData = useSystemData(id)
+
 	const {
 		system,
 		systemStats,
@@ -48,7 +48,7 @@ export default memo(function SystemDetail({ id }: { id: string }) {
 		hasGpuData,
 		hasGpuEnginesData,
 		hasGpuPowerData,
-	} = useSystemData(id)
+	} = systemData
 
 	// extra margin to add to bottom of page, specifically for temperature chart,
 	// where the tooltip can go past the bottom of the page if lots of sensors
@@ -103,7 +103,7 @@ export default memo(function SystemDetail({ id }: { id: string }) {
 						/>
 					)}
 
-					<DiskCharts {...coreProps} systemStats={systemStats} />
+					<RootDiskCharts systemData={systemData} />
 
 					<BandwidthChart {...coreProps} systemStats={systemStats} />
 
@@ -138,7 +138,7 @@ export default memo(function SystemDetail({ id }: { id: string }) {
 					/>
 				)}
 
-				<ExtraFsCharts {...coreProps} systemStats={systemStats} />
+				<ExtraFsCharts systemData={systemData} />
 
 				{maybeHasSmartData && <LazySmartTable systemId={system.id} />}
 
@@ -198,9 +198,9 @@ export default memo(function SystemDetail({ id }: { id: string }) {
 					{mountedTabs.has("disk") && (
 						<>
 							<div className="grid xl:grid-cols-2 gap-4">
-								<DiskCharts {...coreProps} systemStats={systemStats} />
+								<RootDiskCharts systemData={systemData} />
 							</div>
-							<ExtraFsCharts {...coreProps} systemStats={systemStats} />
+							<ExtraFsCharts systemData={systemData} />
 							{maybeHasSmartData && <LazySmartTable systemId={system.id} />}
 						</>
 					)}

internal/site/src/components/routes/system/charts/disk-charts.tsx

@@ -1,106 +1,280 @@
 import { t } from "@lingui/core/macro"
 import AreaChartDefault from "@/components/charts/area-chart"
-import { $userSettings } from "@/lib/stores"
 import { decimalString, formatBytes, toFixedFloat } from "@/lib/utils"
-import type { ChartData, SystemStatsRecord } from "@/types"
+import type { SystemStatsRecord } from "@/types"
 import { ChartCard, SelectAvgMax } from "../chart-card"
 import { Unit } from "@/lib/enums"
+import { pinnedAxisDomain } from "@/components/ui/chart"
+import DiskIoSheet from "../disk-io-sheet"
+import type { SystemData } from "../use-system-data"
+import { useStore } from "@nanostores/react"
+import { $userSettings } from "@/lib/stores"
 
-export function DiskCharts({
+// Helpers for indexed dios/diosm access
-	chartData,
+const dios =
-	grid,
+	(i: number) =>
-	dataEmpty,
+	({ stats }: SystemStatsRecord) =>
-	showMax,
+		stats?.dios?.[i] ?? 0
-	isLongerChart,
+const diosMax =
-	maxValues,
+	(i: number) =>
-}: {
+	({ stats }: SystemStatsRecord) =>
-	chartData: ChartData
+		stats?.diosm?.[i] ?? 0
-	grid: boolean
+const extraDios =
-	dataEmpty: boolean
+	(name: string, i: number) =>
-	showMax: boolean
+	({ stats }: SystemStatsRecord) =>
-	isLongerChart: boolean
+		stats?.efs?.[name]?.dios?.[i] ?? 0
-	maxValues: boolean
+const extraDiosMax =
-	systemStats: SystemStatsRecord[]
+	(name: string, i: number) =>
-}) {
+	({ stats }: SystemStatsRecord) =>
-	const maxValSelect = isLongerChart ? <SelectAvgMax max={maxValues} /> : null
+		stats?.efs?.[name]?.diosm?.[i] ?? 0
-	const userSettings = $userSettings.get()
+
+export const diskDataFns = {
+	// usage
+	usage: ({ stats }: SystemStatsRecord) => stats?.du ?? 0,
+	extraUsage:
+		(name: string) =>
+		({ stats }: SystemStatsRecord) =>
+			stats?.efs?.[name]?.du ?? 0,
+	// throughput
+	read: ({ stats }: SystemStatsRecord) => stats?.dio?.[0] ?? (stats?.dr ?? 0) * 1024 * 1024,
+	readMax: ({ stats }: SystemStatsRecord) => stats?.diom?.[0] ?? (stats?.drm ?? 0) * 1024 * 1024,
+	write: ({ stats }: SystemStatsRecord) => stats?.dio?.[1] ?? (stats?.dw ?? 0) * 1024 * 1024,
+	writeMax: ({ stats }: SystemStatsRecord) => stats?.diom?.[1] ?? (stats?.dwm ?? 0) * 1024 * 1024,
+	// extra fs throughput
+	extraRead:
+		(name: string) =>
+		({ stats }: SystemStatsRecord) =>
+			stats?.efs?.[name]?.rb ?? (stats?.efs?.[name]?.r ?? 0) * 1024 * 1024,
+	extraReadMax:
+		(name: string) =>
+		({ stats }: SystemStatsRecord) =>
+			stats?.efs?.[name]?.rbm ?? (stats?.efs?.[name]?.rm ?? 0) * 1024 * 1024,
+	extraWrite:
+		(name: string) =>
+		({ stats }: SystemStatsRecord) =>
+			stats?.efs?.[name]?.wb ?? (stats?.efs?.[name]?.w ?? 0) * 1024 * 1024,
+	extraWriteMax:
+		(name: string) =>
+		({ stats }: SystemStatsRecord) =>
+			stats?.efs?.[name]?.wbm ?? (stats?.efs?.[name]?.wm ?? 0) * 1024 * 1024,
+	// read/write time
+	readTime: dios(0),
+	readTimeMax: diosMax(0),
+	extraReadTime: (name: string) => extraDios(name, 0),
+	extraReadTimeMax: (name: string) => extraDiosMax(name, 0),
+	writeTime: dios(1),
+	writeTimeMax: diosMax(1),
+	extraWriteTime: (name: string) => extraDios(name, 1),
+	extraWriteTimeMax: (name: string) => extraDiosMax(name, 1),
+	// utilization (IoTime-based, 0-100%)
+	util: dios(2),
+	utilMax: diosMax(2),
+	extraUtil: (name: string) => extraDios(name, 2),
+	extraUtilMax: (name: string) => extraDiosMax(name, 2),
+	// r_await / w_await: average service time per read/write operation (ms)
+	rAwait: dios(3),
+	rAwaitMax: diosMax(3),
+	extraRAwait: (name: string) => extraDios(name, 3),
+	extraRAwaitMax: (name: string) => extraDiosMax(name, 3),
+	wAwait: dios(4),
+	wAwaitMax: diosMax(4),
+	extraWAwait: (name: string) => extraDios(name, 4),
+	extraWAwaitMax: (name: string) => extraDiosMax(name, 4),
+	// average queue depth: stored as queue_depth * 100 in Go, divided here
+	weightedIO: ({ stats }: SystemStatsRecord) => (stats?.dios?.[5] ?? 0) / 100,
+	weightedIOMax: ({ stats }: SystemStatsRecord) => (stats?.diosm?.[5] ?? 0) / 100,
+	extraWeightedIO:
+		(name: string) =>
+		({ stats }: SystemStatsRecord) =>
+			(stats?.efs?.[name]?.dios?.[5] ?? 0) / 100,
+	extraWeightedIOMax:
+		(name: string) =>
+		({ stats }: SystemStatsRecord) =>
+			(stats?.efs?.[name]?.diosm?.[5] ?? 0) / 100,
+}
+
+export function RootDiskCharts({ systemData }: { systemData: SystemData }) {
+	return (
+		<>
+			<DiskUsageChart systemData={systemData} />
+			<DiskIOChart systemData={systemData} />
+		</>
+	)
+}
+
+export function DiskUsageChart({ systemData, extraFsName }: { systemData: SystemData; extraFsName?: string }) {
+	const { chartData, grid, dataEmpty } = systemData
 
 	let diskSize = chartData.systemStats?.at(-1)?.stats.d ?? NaN
+	if (extraFsName) {
+		diskSize = chartData.systemStats?.at(-1)?.stats.efs?.[extraFsName]?.d ?? NaN
+	}
 	// round to nearest GB
 	if (diskSize >= 100) {
 		diskSize = Math.round(diskSize)
 	}
 
-	return (
+	const title = extraFsName ? `${extraFsName} ${t`Usage`}` : t`Disk Usage`
-		<>
+	const description = extraFsName ? t`Disk usage of ${extraFsName}` : t`Usage of root partition`
-			<ChartCard empty={dataEmpty} grid={grid} title={t`Disk Usage`} description={t`Usage of root partition`}>
-				<AreaChartDefault
-					chartData={chartData}
-					domain={[0, diskSize]}
-					tickFormatter={(val) => {
-						const { value, unit } = formatBytes(val * 1024, false, Unit.Bytes, true)
-						return `${toFixedFloat(value, value >= 10 ? 0 : 1)} ${unit}`
-					}}
-					contentFormatter={({ value }) => {
-						const { value: convertedValue, unit } = formatBytes(value * 1024, false, Unit.Bytes, true)
-						return `${decimalString(convertedValue)} ${unit}`
-					}}
-					dataPoints={[
-						{
-							label: t`Disk Usage`,
-							color: 4,
-							opacity: 0.4,
-							dataKey: ({ stats }) => stats?.du,
-						},
-					]}
-				></AreaChartDefault>
-			</ChartCard>
 
-			<ChartCard
+	return (
-				empty={dataEmpty}
+		<ChartCard empty={dataEmpty} grid={grid} title={title} description={description}>
-				grid={grid}
+			<AreaChartDefault
-				title={t`Disk I/O`}
+				chartData={chartData}
-				description={t`Throughput of root filesystem`}
+				domain={[0, diskSize]}
-				cornerEl={maxValSelect}
+				tickFormatter={(val) => {
-			>
+					const { value, unit } = formatBytes(val * 1024, false, Unit.Bytes, true)
-				<AreaChartDefault
+					return `${toFixedFloat(value, value >= 10 ? 0 : 1)} ${unit}`
-					chartData={chartData}
+				}}
-					maxToggled={showMax}
+				contentFormatter={({ value }) => {
-					dataPoints={[
+					const { value: convertedValue, unit } = formatBytes(value * 1024, false, Unit.Bytes, true)
-						{
+					return `${decimalString(convertedValue)} ${unit}`
-							label: t({ message: "Write", comment: "Disk write" }),
+				}}
-							dataKey: ({ stats }: SystemStatsRecord) => {
+				dataPoints={[
-								if (showMax) {
+					{
-									return stats?.dio?.[1] ?? (stats?.dwm ?? 0) * 1024 * 1024
+						label: t`Disk Usage`,
-								}
+						color: 4,
-								return stats?.dio?.[1] ?? (stats?.dw ?? 0) * 1024 * 1024
+						opacity: 0.4,
-							},
+						dataKey: extraFsName ? diskDataFns.extraUsage(extraFsName) : diskDataFns.usage,
-							color: 3,
+					},
-							opacity: 0.3,
+				]}
-						},
+			></AreaChartDefault>
-						{
+		</ChartCard>
-							label: t({ message: "Read", comment: "Disk read" }),
+	)
-							dataKey: ({ stats }: SystemStatsRecord) => {
+}
-								if (showMax) {
+
-									return stats?.diom?.[0] ?? (stats?.drm ?? 0) * 1024 * 1024
+export function DiskIOChart({ systemData, extraFsName }: { systemData: SystemData; extraFsName?: string }) {
-								}
+	const { chartData, grid, dataEmpty, showMax, isLongerChart, maxValues } = systemData
-								return stats?.dio?.[0] ?? (stats?.dr ?? 0) * 1024 * 1024
+	const maxValSelect = isLongerChart ? <SelectAvgMax max={maxValues} /> : null
-							},
+	const userSettings = useStore($userSettings)
-							color: 1,
+
-							opacity: 0.3,
+	if (!chartData.systemStats?.length) {
-						},
+		return null
-					]}
+	}
-					tickFormatter={(val) => {
+
-						const { value, unit } = formatBytes(val, true, userSettings.unitDisk, false)
+	const title = extraFsName ? t`${extraFsName} I/O` : t`Disk I/O`
-						return `${toFixedFloat(value, value >= 10 ? 0 : 1)} ${unit}`
+	const description = extraFsName ? t`Throughput of ${extraFsName}` : t`Throughput of root filesystem`
-					}}
+
-					contentFormatter={({ value }) => {
+	const hasMoreIOMetrics = chartData.systemStats?.some((record) => record.stats?.dios?.at(0))
-						const { value: convertedValue, unit } = formatBytes(value, true, userSettings.unitDisk, false)
+
-						return `${decimalString(convertedValue, convertedValue >= 100 ? 1 : 2)} ${unit}`
+	let CornerEl = maxValSelect
-					}}
+	if (hasMoreIOMetrics) {
-					showTotal={true}
+		CornerEl = (
-				/>
+			<div className="flex gap-2">
-			</ChartCard>
+				{maxValSelect}
-		</>
+				<DiskIoSheet systemData={systemData} extraFsName={extraFsName} title={title} description={description} />
+			</div>
+		)
+	}
+
+	let readFn = showMax ? diskDataFns.readMax : diskDataFns.read
+	let writeFn = showMax ? diskDataFns.writeMax : diskDataFns.write
+	if (extraFsName) {
+		readFn = showMax ? diskDataFns.extraReadMax(extraFsName) : diskDataFns.extraRead(extraFsName)
+		writeFn = showMax ? diskDataFns.extraWriteMax(extraFsName) : diskDataFns.extraWrite(extraFsName)
+	}
+
+	return (
+		<ChartCard empty={dataEmpty} grid={grid} title={title} description={description} cornerEl={CornerEl}>
+			<AreaChartDefault
+				chartData={chartData}
+				maxToggled={showMax}
+				// domain={pinnedAxisDomain(true)}
+				showTotal={true}
+				dataPoints={[
+					{
+						label: t({ message: "Write", comment: "Disk write" }),
+						dataKey: writeFn,
+						color: 3,
+						opacity: 0.3,
+					},
+					{
+						label: t({ message: "Read", comment: "Disk read" }),
+						dataKey: readFn,
+						color: 1,
+						opacity: 0.3,
+					},
+				]}
+				tickFormatter={(val) => {
+					const { value, unit } = formatBytes(val, true, userSettings.unitDisk, false)
+					return `${toFixedFloat(value, value >= 10 ? 0 : 1)} ${unit}`
+				}}
+				contentFormatter={({ value }) => {
+					const { value: convertedValue, unit } = formatBytes(value, true, userSettings.unitDisk, false)
+					return `${decimalString(convertedValue, convertedValue >= 100 ? 1 : 2)} ${unit}`
+				}}
+			/>
+		</ChartCard>
+	)
+}
+
+export function DiskUtilizationChart({ systemData, extraFsName }: { systemData: SystemData; extraFsName?: string }) {
+	const { chartData, grid, dataEmpty, showMax, isLongerChart, maxValues } = systemData
+	const maxValSelect = isLongerChart ? <SelectAvgMax max={maxValues} /> : null
+
+	if (!chartData.systemStats?.length) {
+		return null
+	}
+
+	let utilFn = showMax ? diskDataFns.utilMax : diskDataFns.util
+	if (extraFsName) {
+		utilFn = showMax ? diskDataFns.extraUtilMax(extraFsName) : diskDataFns.extraUtil(extraFsName)
+	}
+	return (
+		<ChartCard
+			cornerEl={maxValSelect}
+			empty={dataEmpty}
+			grid={grid}
+			title={t`I/O Utilization`}
+			description={t`Percent of time the disk is busy with I/O`}
+			// legend={true}
+			className="min-h-auto"
+		>
+			<AreaChartDefault
+				chartData={chartData}
+				domain={pinnedAxisDomain()}
+				tickFormatter={(val) => `${toFixedFloat(val, 2)}%`}
+				contentFormatter={({ value }) => `${decimalString(value)}%`}
+				maxToggled={showMax}
+				chartProps={{ syncId: "io" }}
+				dataPoints={[
+					{
+						label: t`Utilization`,
+						dataKey: utilFn,
+						color: 1,
+						opacity: 0.4,
+					},
+				]}
+			/>
+		</ChartCard>
+	)
+}
+
+export function ExtraFsCharts({ systemData }: { systemData: SystemData }) {
+	const { systemStats } = systemData.chartData
+
+	const extraFs = systemStats?.at(-1)?.stats.efs
+
+	if (!extraFs || Object.keys(extraFs).length === 0) {
+		return null
+	}
+
+	return (
+		<div className="grid xl:grid-cols-2 gap-4">
+			{Object.keys(extraFs).map((extraFsName) => {
+				let diskSize = systemStats.at(-1)?.stats.efs?.[extraFsName].d ?? NaN
+				// round to nearest GB
+				if (diskSize >= 100) {
+					diskSize = Math.round(diskSize)
+				}
+				return (
+					<div key={extraFsName} className="contents">
+						<DiskUsageChart systemData={systemData} extraFsName={extraFsName} />
+
+						<DiskIOChart systemData={systemData} extraFsName={extraFsName} />
+					</div>
+				)
+			})}
+		</div>
 	)
 }

internal/site/src/components/routes/system/charts/extra-fs-charts.tsx

@@ -1,120 +0,0 @@
-import { t } from "@lingui/core/macro"
-import AreaChartDefault from "@/components/charts/area-chart"
-import { $userSettings } from "@/lib/stores"
-import { decimalString, formatBytes, toFixedFloat } from "@/lib/utils"
-import type { ChartData, SystemStatsRecord } from "@/types"
-import { ChartCard, SelectAvgMax } from "../chart-card"
-import { Unit } from "@/lib/enums"
-
-export function ExtraFsCharts({
-	chartData,
-	grid,
-	dataEmpty,
-	showMax,
-	isLongerChart,
-	maxValues,
-	systemStats,
-}: {
-	chartData: ChartData
-	grid: boolean
-	dataEmpty: boolean
-	showMax: boolean
-	isLongerChart: boolean
-	maxValues: boolean
-	systemStats: SystemStatsRecord[]
-}) {
-	const maxValSelect = isLongerChart ? <SelectAvgMax max={maxValues} /> : null
-	const userSettings = $userSettings.get()
-	const extraFs = systemStats.at(-1)?.stats.efs
-	if (!extraFs || Object.keys(extraFs).length === 0) {
-		return null
-	}
-
-	return (
-		<div className="grid xl:grid-cols-2 gap-4">
-			{Object.keys(extraFs).map((extraFsName) => {
-				let diskSize = systemStats.at(-1)?.stats.efs?.[extraFsName].d ?? NaN
-				// round to nearest GB
-				if (diskSize >= 100) {
-					diskSize = Math.round(diskSize)
-				}
-				return (
-					<div key={extraFsName} className="contents">
-						<ChartCard
-							empty={dataEmpty}
-							grid={grid}
-							title={`${extraFsName} ${t`Usage`}`}
-							description={t`Disk usage of ${extraFsName}`}
-						>
-							<AreaChartDefault
-								chartData={chartData}
-								domain={[0, diskSize]}
-								tickFormatter={(val) => {
-									const { value, unit } = formatBytes(val * 1024, false, Unit.Bytes, true)
-									return `${toFixedFloat(value, value >= 10 ? 0 : 1)} ${unit}`
-								}}
-								contentFormatter={({ value }) => {
-									const { value: convertedValue, unit } = formatBytes(value * 1024, false, Unit.Bytes, true)
-									return `${decimalString(convertedValue)} ${unit}`
-								}}
-								dataPoints={[
-									{
-										label: t`Disk Usage`,
-										color: 4,
-										opacity: 0.4,
-										dataKey: ({ stats }) => stats?.efs?.[extraFsName]?.du,
-									},
-								]}
-							></AreaChartDefault>
-						</ChartCard>
-						<ChartCard
-							empty={dataEmpty}
-							grid={grid}
-							title={`${extraFsName} I/O`}
-							description={t`Throughput of ${extraFsName}`}
-							cornerEl={maxValSelect}
-						>
-							<AreaChartDefault
-								chartData={chartData}
-								showTotal={true}
-								dataPoints={[
-									{
-										label: t`Write`,
-										dataKey: ({ stats }) => {
-											if (showMax) {
-												return stats?.efs?.[extraFsName]?.wbm || (stats?.efs?.[extraFsName]?.wm ?? 0) * 1024 * 1024
-											}
-											return stats?.efs?.[extraFsName]?.wb || (stats?.efs?.[extraFsName]?.w ?? 0) * 1024 * 1024
-										},
-										color: 3,
-										opacity: 0.3,
-									},
-									{
-										label: t`Read`,
-										dataKey: ({ stats }) => {
-											if (showMax) {
-												return stats?.efs?.[extraFsName]?.rbm ?? (stats?.efs?.[extraFsName]?.rm ?? 0) * 1024 * 1024
-											}
-											return stats?.efs?.[extraFsName]?.rb ?? (stats?.efs?.[extraFsName]?.r ?? 0) * 1024 * 1024
-										},
-										color: 1,
-										opacity: 0.3,
-									},
-								]}
-								maxToggled={showMax}
-								tickFormatter={(val) => {
-									const { value, unit } = formatBytes(val, true, userSettings.unitDisk, false)
-									return `${toFixedFloat(value, value >= 10 ? 0 : 1)} ${unit}`
-								}}
-								contentFormatter={({ value }) => {
-									const { value: convertedValue, unit } = formatBytes(value, true, userSettings.unitDisk, false)
-									return `${decimalString(convertedValue, convertedValue >= 100 ? 1 : 2)} ${unit}`
-								}}
-							/>
-						</ChartCard>
-					</div>
-				)
-			})}
-		</div>
-	)
-}

internal/site/src/components/routes/system/disk-io-sheet.tsx

@@ -0,0 +1,257 @@
+import { t } from "@lingui/core/macro"
+import { useStore } from "@nanostores/react"
+import { MoreHorizontalIcon } from "lucide-react"
+import { memo, useRef, useState } from "react"
+import AreaChartDefault from "@/components/charts/area-chart"
+import ChartTimeSelect from "@/components/charts/chart-time-select"
+import { Button } from "@/components/ui/button"
+import { Sheet, SheetContent, SheetTrigger } from "@/components/ui/sheet"
+import { DialogTitle } from "@/components/ui/dialog"
+import { $userSettings } from "@/lib/stores"
+import { decimalString, formatBytes, toFixedFloat } from "@/lib/utils"
+import { ChartCard, SelectAvgMax } from "@/components/routes/system/chart-card"
+import type { SystemData } from "@/components/routes/system/use-system-data"
+import { diskDataFns, DiskUtilizationChart } from "./charts/disk-charts"
+import { pinnedAxisDomain } from "@/components/ui/chart"
+
+export default memo(function DiskIOSheet({
+	systemData,
+	extraFsName,
+	title,
+	description,
+}: {
+	systemData: SystemData
+	extraFsName?: string
+	title: string
+	description: string
+}) {
+	const { chartData, grid, dataEmpty, showMax, maxValues, isLongerChart } = systemData
+	const userSettings = useStore($userSettings)
+
+	const [sheetOpen, setSheetOpen] = useState(false)
+
+	const hasOpened = useRef(false)
+
+	if (sheetOpen && !hasOpened.current) {
+		hasOpened.current = true
+	}
+
+	// throughput functions, with extra fs variants if needed
+	let readFn = showMax ? diskDataFns.readMax : diskDataFns.read
+	let writeFn = showMax ? diskDataFns.writeMax : diskDataFns.write
+	if (extraFsName) {
+		readFn = showMax ? diskDataFns.extraReadMax(extraFsName) : diskDataFns.extraRead(extraFsName)
+		writeFn = showMax ? diskDataFns.extraWriteMax(extraFsName) : diskDataFns.extraWrite(extraFsName)
+	}
+
+	// read and write time functions, with extra fs variants if needed
+	let readTimeFn = showMax ? diskDataFns.readTimeMax : diskDataFns.readTime
+	let writeTimeFn = showMax ? diskDataFns.writeTimeMax : diskDataFns.writeTime
+	if (extraFsName) {
+		readTimeFn = showMax ? diskDataFns.extraReadTimeMax(extraFsName) : diskDataFns.extraReadTime(extraFsName)
+		writeTimeFn = showMax ? diskDataFns.extraWriteTimeMax(extraFsName) : diskDataFns.extraWriteTime(extraFsName)
+	}
+
+	// I/O await functions, with extra fs variants if needed
+	let rAwaitFn = showMax ? diskDataFns.rAwaitMax : diskDataFns.rAwait
+	let wAwaitFn = showMax ? diskDataFns.wAwaitMax : diskDataFns.wAwait
+	if (extraFsName) {
+		rAwaitFn = showMax ? diskDataFns.extraRAwaitMax(extraFsName) : diskDataFns.extraRAwait(extraFsName)
+		wAwaitFn = showMax ? diskDataFns.extraWAwaitMax(extraFsName) : diskDataFns.extraWAwait(extraFsName)
+	}
+
+	// weighted I/O function, with extra fs variant if needed
+	let weightedIOFn = showMax ? diskDataFns.weightedIOMax : diskDataFns.weightedIO
+	if (extraFsName) {
+		weightedIOFn = showMax ? diskDataFns.extraWeightedIOMax(extraFsName) : diskDataFns.extraWeightedIO(extraFsName)
+	}
+
+	// check for availability of I/O metrics
+	let hasUtilization = false
+	let hasAwait = false
+	let hasWeightedIO = false
+	for (const record of chartData.systemStats ?? []) {
+		const dios = record.stats?.dios
+		if ((dios?.at(2) ?? 0) > 0) hasUtilization = true
+		if ((dios?.at(3) ?? 0) > 0) hasAwait = true
+		if ((dios?.at(5) ?? 0) > 0) hasWeightedIO = true
+		if (hasUtilization && hasAwait && hasWeightedIO) {
+			break
+		}
+	}
+
+	const maxValSelect = isLongerChart ? <SelectAvgMax max={maxValues} /> : null
+
+	const chartProps = { syncId: "io" }
+
+	return (
+		<Sheet open={sheetOpen} onOpenChange={setSheetOpen}>
+			<DialogTitle className="sr-only">{title}</DialogTitle>
+			<SheetTrigger asChild>
+				<Button
+					title={t`View more`}
+					variant="outline"
+					size="icon"
+					className="shrink-0 max-sm:absolute max-sm:top-0 max-sm:end-0"
+				>
+					<MoreHorizontalIcon />
+				</Button>
+			</SheetTrigger>
+			{hasOpened.current && (
+				<SheetContent aria-describedby={undefined} className="overflow-auto w-200 !max-w-full p-4 sm:p-6">
+					<ChartTimeSelect className="w-[calc(100%-2em)] bg-card" agentVersion={chartData.agentVersion} />
+
+					<ChartCard
+						className="min-h-auto"
+						empty={dataEmpty}
+						grid={grid}
+						title={title}
+						description={description}
+						cornerEl={maxValSelect}
+						// legend={true}
+					>
+						<AreaChartDefault
+							chartData={chartData}
+							maxToggled={showMax}
+							chartProps={chartProps}
+							showTotal={true}
+							domain={pinnedAxisDomain()}
+							itemSorter={(a, b) => a.order - b.order}
+							reverseStackOrder={true}
+							dataPoints={[
+								{
+									label: t({ message: "Write", comment: "Disk write" }),
+									dataKey: writeFn,
+									color: 3,
+									opacity: 0.4,
+									stackId: 0,
+									order: 0,
+								},
+								{
+									label: t({ message: "Read", comment: "Disk read" }),
+									dataKey: readFn,
+									color: 1,
+									opacity: 0.4,
+									stackId: 0,
+									order: 1,
+								},
+							]}
+							tickFormatter={(val) => {
+								const { value, unit } = formatBytes(val, true, userSettings.unitDisk, false)
+								return `${toFixedFloat(value, value >= 10 ? 0 : 1)} ${unit}`
+							}}
+							contentFormatter={({ value }) => {
+								const { value: convertedValue, unit } = formatBytes(value, true, userSettings.unitDisk, false)
+								return `${decimalString(convertedValue, convertedValue >= 100 ? 1 : 2)} ${unit}`
+							}}
+						/>
+					</ChartCard>
+
+					{hasUtilization && <DiskUtilizationChart systemData={systemData} extraFsName={extraFsName} />}
+
+					<ChartCard
+						empty={dataEmpty}
+						grid={grid}
+						title={t`I/O Time`}
+						description={t`Total time spent on read/write (can exceed 100%)`}
+						className="min-h-auto"
+						cornerEl={maxValSelect}
+					>
+						<AreaChartDefault
+							chartData={chartData}
+							domain={pinnedAxisDomain()}
+							tickFormatter={(val) => `${toFixedFloat(val, 2)}%`}
+							contentFormatter={({ value }) => `${decimalString(value)}%`}
+							maxToggled={showMax}
+							chartProps={chartProps}
+							showTotal={true}
+							itemSorter={(a, b) => a.order - b.order}
+							reverseStackOrder={true}
+							dataPoints={[
+								{
+									label: t`Write`,
+									dataKey: writeTimeFn,
+									color: 3,
+									opacity: 0.4,
+									stackId: 0,
+									order: 0,
+								},
+								{
+									label: t`Read`,
+									dataKey: readTimeFn,
+									color: 1,
+									opacity: 0.4,
+									stackId: 0,
+									order: 1,
+								},
+							]}
+						/>
+					</ChartCard>
+
+					{hasWeightedIO && (
+						<ChartCard
+							empty={dataEmpty}
+							grid={grid}
+							title={t`Average Queue Depth`}
+							description={t`Average number of I/O operations waiting to be serviced`}
+							className="min-h-auto"
+							cornerEl={maxValSelect}
+						>
+							<AreaChartDefault
+								chartData={chartData}
+								domain={pinnedAxisDomain()}
+								tickFormatter={(val) => `${toFixedFloat(val, 2)}`}
+								contentFormatter={({ value }) => decimalString(value, value < 10 ? 3 : 2)}
+								maxToggled={showMax}
+								chartProps={chartProps}
+								dataPoints={[
+									{
+										label: t`Queue Depth`,
+										dataKey: weightedIOFn,
+										color: 1,
+										opacity: 0.4,
+									},
+								]}
+							/>
+						</ChartCard>
+					)}
+
+					{hasAwait && (
+						<ChartCard
+							empty={dataEmpty}
+							grid={grid}
+							title={t`I/O Await`}
+							description={t`Average service time per operation`}
+							className="min-h-auto"
+							cornerEl={maxValSelect}
+							// legend={true}
+						>
+							<AreaChartDefault
+								chartData={chartData}
+								domain={pinnedAxisDomain()}
+								tickFormatter={(val) => `${toFixedFloat(val, 2)} ms`}
+								contentFormatter={({ value }) => `${decimalString(value)} ms`}
+								maxToggled={showMax}
+								chartProps={chartProps}
+								dataPoints={[
+									{
+										label: t`Write`,
+										dataKey: wAwaitFn,
+										color: 3,
+										opacity: 0.3,
+									},
+									{
+										label: t`Read`,
+										dataKey: rAwaitFn,
+										color: 1,
+										opacity: 0.3,
+									},
+								]}
+							/>
+						</ChartCard>
+					)}
+				</SheetContent>
+			)}
+		</Sheet>
+	)
+})

internal/site/src/components/routes/system/use-system-data.ts

@@ -28,6 +28,8 @@ import type {
 import { $router, navigate } from "../../router"
 import { appendData, cache, getStats, getTimeData, makeContainerData, makeContainerPoint } from "./chart-data"
 
+export type SystemData = ReturnType<typeof useSystemData>
+
 export function useSystemData(id: string) {
 	const direction = useStore($direction)
 	const systems = useStore($systems)

internal/site/src/types.d.ts

@@ -124,6 +124,10 @@ export interface SystemStats {
 	dio?: [number, number]
 	/** max disk I/O bytes [read, write] */
 	diom?: [number, number]
+	/** disk io stats [read time factor, write time factor, io utilization %, r_await ms, w_await ms, weighted io %] */
+	dios?: [number, number, number, number, number, number]
+	/** max disk io stats */
+	diosm?: [number, number, number, number, number, number]
 	/** network sent (mb) */
 	ns: number
 	/** network received (mb) */
@@ -186,6 +190,10 @@ export interface ExtraFsStats {
 	rbm: number
 	/** max write per second (mb) */
 	wbm: number
+	/** disk io stats [read time factor, write time factor, io utilization %, r_await ms, w_await ms, weighted io %] */
+	dios?: [number, number, number, number, number, number]
+	/** max disk io stats */
+	diosm?: [number, number, number, number, number, number]
 }
 
 export interface ContainerStatsRecord extends RecordModel {
@@ -413,118 +421,118 @@ export interface SystemdRecord extends RecordModel {
 }
 
 export interface SystemdServiceDetails {
-	AccessSELinuxContext: string;
+	AccessSELinuxContext: string
-	ActivationDetails: any[];
+	ActivationDetails: any[]
-	ActiveEnterTimestamp: number;
+	ActiveEnterTimestamp: number
-	ActiveEnterTimestampMonotonic: number;
+	ActiveEnterTimestampMonotonic: number
-	ActiveExitTimestamp: number;
+	ActiveExitTimestamp: number
-	ActiveExitTimestampMonotonic: number;
+	ActiveExitTimestampMonotonic: number
-	ActiveState: string;
+	ActiveState: string
-	After: string[];
+	After: string[]
-	AllowIsolate: boolean;
+	AllowIsolate: boolean
-	AssertResult: boolean;
+	AssertResult: boolean
-	AssertTimestamp: number;
+	AssertTimestamp: number
-	AssertTimestampMonotonic: number;
+	AssertTimestampMonotonic: number
-	Asserts: any[];
+	Asserts: any[]
-	Before: string[];
+	Before: string[]
-	BindsTo: any[];
+	BindsTo: any[]
-	BoundBy: any[];
+	BoundBy: any[]
-	CPUUsageNSec: number;
+	CPUUsageNSec: number
-	CanClean: any[];
+	CanClean: any[]
-	CanFreeze: boolean;
+	CanFreeze: boolean
-	CanIsolate: boolean;
+	CanIsolate: boolean
-	CanLiveMount: boolean;
+	CanLiveMount: boolean
-	CanReload: boolean;
+	CanReload: boolean
-	CanStart: boolean;
+	CanStart: boolean
-	CanStop: boolean;
+	CanStop: boolean
-	CollectMode: string;
+	CollectMode: string
-	ConditionResult: boolean;
+	ConditionResult: boolean
-	ConditionTimestamp: number;
+	ConditionTimestamp: number
-	ConditionTimestampMonotonic: number;
+	ConditionTimestampMonotonic: number
-	Conditions: any[];
+	Conditions: any[]
-	ConflictedBy: any[];
+	ConflictedBy: any[]
-	Conflicts: string[];
+	Conflicts: string[]
-	ConsistsOf: any[];
+	ConsistsOf: any[]
-	DebugInvocation: boolean;
+	DebugInvocation: boolean
-	DefaultDependencies: boolean;
+	DefaultDependencies: boolean
-	Description: string;
+	Description: string
-	Documentation: string[];
+	Documentation: string[]
-	DropInPaths: any[];
+	DropInPaths: any[]
-	ExecMainPID: number;
+	ExecMainPID: number
-	FailureAction: string;
+	FailureAction: string
-	FailureActionExitStatus: number;
+	FailureActionExitStatus: number
-	Following: string;
+	Following: string
-	FragmentPath: string;
+	FragmentPath: string
-	FreezerState: string;
+	FreezerState: string
-	Id: string;
+	Id: string
-	IgnoreOnIsolate: boolean;
+	IgnoreOnIsolate: boolean
-	InactiveEnterTimestamp: number;
+	InactiveEnterTimestamp: number
-	InactiveEnterTimestampMonotonic: number;
+	InactiveEnterTimestampMonotonic: number
-	InactiveExitTimestamp: number;
+	InactiveExitTimestamp: number
-	InactiveExitTimestampMonotonic: number;
+	InactiveExitTimestampMonotonic: number
-	InvocationID: string;
+	InvocationID: string
-	Job: Array<number | string>;
+	Job: Array<number | string>
-	JobRunningTimeoutUSec: number;
+	JobRunningTimeoutUSec: number
-	JobTimeoutAction: string;
+	JobTimeoutAction: string
-	JobTimeoutRebootArgument: string;
+	JobTimeoutRebootArgument: string
-	JobTimeoutUSec: number;
+	JobTimeoutUSec: number
-	JoinsNamespaceOf: any[];
+	JoinsNamespaceOf: any[]
-	LoadError: string[];
+	LoadError: string[]
-	LoadState: string;
+	LoadState: string
-	MainPID: number;
+	MainPID: number
-	Markers: any[];
+	Markers: any[]
-	MemoryCurrent: number;
+	MemoryCurrent: number
-	MemoryLimit: number;
+	MemoryLimit: number
-	MemoryPeak: number;
+	MemoryPeak: number
-	NRestarts: number;
+	NRestarts: number
-	Names: string[];
+	Names: string[]
-	NeedDaemonReload: boolean;
+	NeedDaemonReload: boolean
-	OnFailure: any[];
+	OnFailure: any[]
-	OnFailureJobMode: string;
+	OnFailureJobMode: string
-	OnFailureOf: any[];
+	OnFailureOf: any[]
-	OnSuccess: any[];
+	OnSuccess: any[]
-	OnSuccessJobMode: string;
+	OnSuccessJobMode: string
-	OnSuccessOf: any[];
+	OnSuccessOf: any[]
-	PartOf: any[];
+	PartOf: any[]
-	Perpetual: boolean;
+	Perpetual: boolean
-	PropagatesReloadTo: any[];
+	PropagatesReloadTo: any[]
-	PropagatesStopTo: any[];
+	PropagatesStopTo: any[]
-	RebootArgument: string;
+	RebootArgument: string
-	Refs: any[];
+	Refs: any[]
-	RefuseManualStart: boolean;
+	RefuseManualStart: boolean
-	RefuseManualStop: boolean;
+	RefuseManualStop: boolean
-	ReloadPropagatedFrom: any[];
+	ReloadPropagatedFrom: any[]
-	RequiredBy: any[];
+	RequiredBy: any[]
-	Requires: string[];
+	Requires: string[]
-	RequiresMountsFor: any[];
+	RequiresMountsFor: any[]
-	Requisite: any[];
+	Requisite: any[]
-	RequisiteOf: any[];
+	RequisiteOf: any[]
-	Result: string;
+	Result: string
-	SliceOf: any[];
+	SliceOf: any[]
-	SourcePath: string;
+	SourcePath: string
-	StartLimitAction: string;
+	StartLimitAction: string
-	StartLimitBurst: number;
+	StartLimitBurst: number
-	StartLimitIntervalUSec: number;
+	StartLimitIntervalUSec: number
-	StateChangeTimestamp: number;
+	StateChangeTimestamp: number
-	StateChangeTimestampMonotonic: number;
+	StateChangeTimestampMonotonic: number
-	StopPropagatedFrom: any[];
+	StopPropagatedFrom: any[]
-	StopWhenUnneeded: boolean;
+	StopWhenUnneeded: boolean
-	SubState: string;
+	SubState: string
-	SuccessAction: string;
+	SuccessAction: string
-	SuccessActionExitStatus: number;
+	SuccessActionExitStatus: number
-	SurviveFinalKillSignal: boolean;
+	SurviveFinalKillSignal: boolean
-	TasksCurrent: number;
+	TasksCurrent: number
-	TasksMax: number;
+	TasksMax: number
-	Transient: boolean;
+	Transient: boolean
-	TriggeredBy: string[];
+	TriggeredBy: string[]
-	Triggers: any[];
+	Triggers: any[]
-	UnitFilePreset: string;
+	UnitFilePreset: string
-	UnitFileState: string;
+	UnitFileState: string
-	UpheldBy: any[];
+	UpheldBy: any[]
-	Upholds: any[];
+	Upholds: any[]
-	WantedBy: any[];
+	WantedBy: any[]
-	Wants: string[];
+	Wants: string[]
-	WantsMountsFor: any[];
+	WantsMountsFor: any[]
 }
 
 export interface BeszelInfo {