Santhi Prakash 01d91728f0 fix(agent): report LXC guest CPU usage from cgroup accounting (#2341) ...

Inside an LXC guest, lxcfs serves /proc/stat with the counters of the
host cores in the guest's cpuset, so an idle guest sharing a core with a
busy neighbor reported near-100% CPU.

When the agent detects it is running in an LXC guest (lxcfs mounted on
/proc/stat, container=lxc, or /run/systemd/container), derive CPU usage
from the guest's own cgroup instead: cpu.stat on cgroup v2, cpuacct on
v1, read at the cgroup mount root so it covers every process in the
guest. Usage is normalized by the usable cores (the smallest of the
affinity mask, cpuset and CPU quota).

Per-core usage is omitted in this mode, since the per-core /proc/stat
counters describe shared host cores and would contradict the total.
Iowait and steal are not available from cgroup accounting and report as
zero.

Hosts and Docker/Podman agents are unaffected and keep reading
/proc/stat, as does an LXC guest whose cgroup accounting is unreadable.

---------

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

2026-10-01 19:33:42 -04:00

..

battery

fix(agent): strip invalid UTF-8 from battery names (#2241)

2026-08-19 11:02:33 -04:00

btrfs

feat(agent): report btrfs filesystems as storage pools (#2315)

2026-09-09 19:53:39 -04:00

deltatracker

likely fix for huge net traffic on interface reset (#1267)

2025-10-18 15:40:54 -04:00

health

refactor: small go 1.26 updates and go fix changes

2026-02-19 18:04:33 -05:00

lhm

agent: update LibreHardwareMonitorLib to 0.9.6

2026-03-31 15:55:02 -04:00

test-data

feat: list pending package updates on the system page (#2427)

2026-09-27 11:27:13 -04:00

tools/fetchsmartctl

embed smartctl in the windows binary (#1362)

2025-11-05 13:03:47 -05:00

utils

fix(hub): System.HasUser - return true if SHARE_ALL_SYSTEMS=true (#1891)

2026-04-08 20:13:39 -04:00

wifi

refactor(agent): label windows wifi interfaces by adapter name instead of GUID

2026-09-30 12:50:17 -04:00

zfs

fix(agent): count ZFS snapshot reads in pool I/O stats (#2474)

2026-09-30 18:22:51 -04:00

agent_cache_test.go

refactor: small go 1.26 updates and go fix changes

2026-02-19 18:04:33 -05:00

agent_cache.go

add one minute chart + refactor rpc

2025-10-02 17:56:51 -04:00

agent_test_helpers.go

refactor: small go 1.26 updates and go fix changes

2026-02-19 18:04:33 -05:00

agent.go

fix(agent): improve WebSocket and SSH fallback handling (#2441)

2026-10-01 13:37:57 -04:00

client_test.go

fix(agent): improve WebSocket and SSH fallback handling (#2441)

2026-10-01 13:37:57 -04:00

client.go

fix(agent): improve WebSocket and SSH fallback handling (#2441)

2026-10-01 13:37:57 -04:00

connection_manager_test.go

fix(agent): improve WebSocket and SSH fallback handling (#2441)

2026-10-01 13:37:57 -04:00

connection_manager.go

fix(agent): improve WebSocket and SSH fallback handling (#2441)

2026-10-01 13:37:57 -04:00

cpu_linux_test.go

fix(agent): report LXC guest CPU usage from cgroup accounting (#2341)

2026-10-01 19:33:42 -04:00

cpu_linux.go

fix(agent): report LXC guest CPU usage from cgroup accounting (#2341)

2026-10-01 19:33:42 -04:00

cpu_test.go

refactor(agent): avoid deprecated CPU time total helper (#2459)

2026-09-29 08:42:01 -04:00

cpu_unsupported.go

fix(agent): report LXC guest CPU usage from cgroup accounting (#2341)

2026-10-01 19:33:42 -04:00

cpu.go

fix(agent): report LXC guest CPU usage from cgroup accounting (#2341)

2026-10-01 19:33:42 -04:00

data_dir_test.go

fix windows sensor mocks and data directory tests

2026-08-26 11:50:19 -04:00

data_dir.go

refactor(agent): move GetEnv to utils package

2026-03-07 14:12:17 -05:00

disk_io_linux_test.go

fix(agent): skip first disk I/O sample of an interval when its window is too short

2026-09-30 13:02:29 -04:00

disk_test.go

fix(agent): resolve device symlinks so LVM volumes map to disk I/O (#2486)

2026-10-01 18:44:29 -04:00

disk_zfs_test.go

feat(agent): report btrfs filesystems as storage pools (#2315)

2026-09-09 19:53:39 -04:00

disk.go

fix(agent): resolve device symlinks so LVM volumes map to disk I/O (#2486)

2026-10-01 18:44:29 -04:00

docker_image_updates_test.go

add env var to disable container image update checks (#2371)

2026-09-21 10:49:53 -04:00

docker_image_updates.go

add env var to disable container image update checks (#2371)

2026-09-21 10:49:53 -04:00

docker_registry_test.go

fix(agent): check all image repository digests (#2393)

2026-09-22 18:00:13 -04:00

docker_registry.go

fix(agent): check all image repository digests (#2393)

2026-09-22 18:00:13 -04:00

docker_test.go

feat(agent): Add docker image update available flag (#2211)

2026-09-10 19:39:40 -04:00

docker.go

feat: add toggle for log timestamps (#2471)

2026-09-30 21:14:13 -04:00

emmc_common_test.go

SMART: add eMMC health via sysfs (#1736)

2026-02-12 15:27:42 -05:00

emmc_common.go

SMART: add eMMC health via sysfs (#1736)

2026-02-12 15:27:42 -05:00

emmc_linux_test.go

SMART: add eMMC health via sysfs (#1736)

2026-02-12 15:27:42 -05:00

emmc_linux.go

refactor(agent): add utils package; rm utils.go and fs_utils.go

2026-03-07 13:50:49 -05:00

emmc_stub.go

SMART: add eMMC health via sysfs (#1736)

2026-02-12 15:27:42 -05:00

fans_linux.go

feat: fan RPM monitoring (#2032)

2026-08-15 15:59:07 -04:00

fans_other.go

feat: fan RPM monitoring (#2032)

2026-08-15 15:59:07 -04:00

fans_test.go

fix(agent): SKIP_GPU excludes GPU hwmon from temperatures and fans (#2313)

2026-09-24 13:59:52 -04:00

fans.go

fix(agent): SKIP_GPU excludes GPU hwmon from temperatures and fans (#2313)

2026-09-24 13:59:52 -04:00

fingerprint_test.go

refactor: small go 1.26 updates and go fix changes

2026-02-19 18:04:33 -05:00

fingerprint.go

fix(agent): add fallback for CPU model detection on MIPS architectures (#2138)

2026-08-18 10:34:41 -04:00

gpu_amd_linux_test.go

refactor(agent): add utils package; rm utils.go and fs_utils.go

2026-03-07 13:50:49 -05:00

gpu_amd_linux.go

fix(agent): add safety check for read returning negative bytes (#1799)

2026-04-07 18:41:22 -04:00

gpu_amd_unsupported.go

add experimental sysfs amd gpu collector (#737, #1569)

2026-01-29 18:35:57 -05:00

gpu_darwin_test.go

Mac GPU Stats (#1747)

2026-02-18 14:51:30 -05:00

gpu_darwin_unsupported.go

rename gpu_apple_unsupported.go to gpu_darwin_unsupported.go

2026-02-18 15:15:58 -05:00

gpu_darwin.go

fix(agent): find macmon if /opt/homebrew/bin is not in path (#1746)

2026-03-27 13:52:22 -04:00

gpu_fixture_test.go

test: make agent and systemd fixtures portable (#2461)

2026-09-28 18:19:02 -04:00

gpu_intel_sysfs_linux_test.go

Add Intel sysfs GPU power collector (Xe/i915 hwmon energy counters) (#2020)

2026-08-16 11:20:43 -04:00

gpu_intel_sysfs_linux.go

Add Intel sysfs GPU power collector (Xe/i915 hwmon energy counters) (#2020)

2026-08-16 11:20:43 -04:00

gpu_intel_sysfs_unsupported.go

Add Intel sysfs GPU power collector (Xe/i915 hwmon energy counters) (#2020)

2026-08-16 11:20:43 -04:00

gpu_intel.go

Fix: Convert intel gpu top from text to JSON (#2387)

2026-09-27 10:17:28 -04:00

gpu_nvml_linux.go

agent: add separate glibc build with NVML support (#1618)

2026-01-12 15:38:13 -05:00

gpu_nvml_unsupported_test.go

test: make agent and systemd fixtures portable (#2461)

2026-09-28 18:19:02 -04:00

gpu_nvml_unsupported.go

add nvtop integration and introduce GPU_COLLECTOR env var

2026-02-13 19:41:40 -05:00

gpu_nvml_windows.go

update build constraints to exclude nvml collector on arm64 (#1618)

2026-01-11 20:27:34 -05:00

gpu_nvml.go

agent: add separate glibc build with NVML support (#1618)

2026-01-12 15:38:13 -05:00

gpu_nvtop.go

feat(agent): monitor Intel Arc (xe) GPUs via nvtop (#2223)

2026-08-16 11:41:28 -04:00

gpu_test.go

test: make agent and systemd fixtures portable (#2461)

2026-09-28 18:19:02 -04:00

gpu.go

fix(agent): SKIP_GPU excludes GPU hwmon from temperatures and fans (#2313)

2026-09-24 13:59:52 -04:00

handlers_test.go

fix(agent): improve WebSocket and SSH fallback handling (#2441)

2026-10-01 13:37:57 -04:00

handlers.go

fix(agent): improve WebSocket and SSH fallback handling (#2441)

2026-10-01 13:37:57 -04:00

mdraid_linux_test.go

fix(agent): avoid RAID health warnings during healthy scrubs (#2109)

2026-09-18 21:05:49 -04:00

mdraid_linux.go

fix(agent): avoid RAID health warnings during healthy scrubs (#2109)

2026-09-18 21:05:49 -04:00

mdraid_stub.go

Add Linux mdraid health monitoring (#1750)

2026-02-27 13:42:47 -05:00

network_counters_linux_test.go

fix(agent): use nvethernet MAC counters (#2090)

2026-10-01 10:58:21 -04:00

network_counters_linux.go

fix(agent): use nvethernet MAC counters (#2090)

2026-10-01 10:58:21 -04:00

network_counters_unsupported.go

fix(agent): use nvethernet MAC counters (#2090)

2026-10-01 10:58:21 -04:00

network_monitor_cert_test.go

feat: add TLS certificate expiry check to HTTPS network monitors (#2401)

2026-09-23 17:07:29 -04:00

network_monitor_cert.go

feat: add TLS certificate expiry check to HTTPS network monitors (#2401)

2026-09-23 17:07:29 -04:00

network_monitor_history_test.go

feat: network monitoring from agents (#2266, #1911)

2026-09-18 13:22:50 -04:00

network_monitor_history.go

feat: network monitoring from agents (#2266, #1911)

2026-09-18 13:22:50 -04:00

network_monitor_ping_test.go

feat: network monitoring from agents (#2266, #1911)

2026-09-18 13:22:50 -04:00

network_monitor_ping.go

feat: network monitoring from agents (#2266, #1911)

2026-09-18 13:22:50 -04:00

network_monitor_probe.go

feat: Add option to define which DNS server a DNS monitor queries (#2389)

2026-09-24 19:01:10 -04:00

network_monitor_resume_test.go

feat: network monitoring from agents (#2266, #1911)

2026-09-18 13:22:50 -04:00

network_monitor_resume.go

feat: network monitoring from agents (#2266, #1911)

2026-09-18 13:22:50 -04:00

network_monitor_schedule_test.go

feat: network monitoring from agents (#2266, #1911)

2026-09-18 13:22:50 -04:00

network_monitor_schedule.go

feat: add TLS certificate expiry check to HTTPS network monitors (#2401)

2026-09-23 17:07:29 -04:00

network_monitor_task_test.go

feat: network monitoring from agents (#2266, #1911)

2026-09-18 13:22:50 -04:00

network_monitor_task.go

feat: add TLS certificate expiry check to HTTPS network monitors (#2401)

2026-09-23 17:07:29 -04:00

network_monitor_test.go

feat: Add option to define which DNS server a DNS monitor queries (#2389)

2026-09-24 19:01:10 -04:00

network_monitor.go

feat: add TLS certificate expiry check to HTTPS network monitors (#2401)

2026-09-23 17:07:29 -04:00

network_test.go

fix(agent): use nvethernet MAC counters (#2090)

2026-10-01 10:58:21 -04:00

network.go

fix(agent): use nvethernet MAC counters (#2090)

2026-10-01 10:58:21 -04:00

package_updates_test.go

feat: list pending package updates on the system page (#2427)

2026-09-27 11:27:13 -04:00

package_updates.go

feat: list pending package updates on the system page (#2427)

2026-09-27 11:27:13 -04:00

response.go

fix(hub): remove stale smart_devices records when a drive is no longer reported (#2178)

2026-08-15 13:40:30 -04:00

sensors_default.go

feat: Add support for reading CPU (dev.cpu.*.temperature) and ACPI thermal zone (hw.acpi.thermal.tz*) temperature sensors on FreeBSD systems. (#2227)

2026-08-16 20:58:41 -04:00

sensors_freebsd_common_test.go

agent: simplify FreeBSD temperature sensor names

2026-08-16 21:16:12 -04:00

sensors_freebsd_common.go

agent: simplify FreeBSD temperature sensor names

2026-08-16 21:16:12 -04:00

sensors_freebsd.go

feat: Add support for reading CPU (dev.cpu.*.temperature) and ACPI thermal zone (hw.acpi.thermal.tz*) temperature sensors on FreeBSD systems. (#2227)

2026-08-16 20:58:41 -04:00

sensors_test.go

test: make agent and systemd fixtures portable (#2461)

2026-09-28 18:19:02 -04:00

sensors_windows.go

fix windows sensor mocks and data directory tests

2026-08-26 11:50:19 -04:00

sensors.go

fix(agent): SKIP_GPU excludes GPU hwmon from temperatures and fans (#2313)

2026-09-24 13:59:52 -04:00

server_config_test.go

fix(agent): create SSH server configuration per connection (#2451)

2026-09-28 19:22:48 -04:00

server_test.go

fix(agent): improve WebSocket and SSH fallback handling (#2441)

2026-10-01 13:37:57 -04:00

server.go

fix(agent): improve WebSocket and SSH fallback handling (#2441)

2026-10-01 13:37:57 -04:00

smart_nonwindows.go

embed smartctl in the windows binary (#1362)

2025-11-05 13:03:47 -05:00

smart_test.go

fix(agent): handle partial NVMe SMART data (#2340)

2026-09-29 12:09:32 -04:00

smart_windows.go

embed smartctl in the windows binary (#1362)

2025-11-05 13:03:47 -05:00

smart.go

fix(agent): handle partial NVMe SMART data (#2340)

2026-09-29 12:09:32 -04:00

storage_pool_test.go

fix: prevent WebSocket reconnect loops on slow agent collections (#2294)

2026-09-23 11:21:51 -04:00

storage_pool.go

fix: prevent WebSocket reconnect loops on slow agent collections (#2294)

2026-09-23 11:21:51 -04:00

system_test.go

fix(agent): count swap cache as used space (#2267)

2026-08-26 11:42:40 -04:00

system.go

fix(agent): report LXC guest CPU usage from cgroup accounting (#2341)

2026-10-01 19:33:42 -04:00

systemd_nonlinux_test.go

agent: add separate glibc build with NVML support (#1618)

2026-01-12 15:38:13 -05:00

systemd_nonlinux.go

feat: show systemd service logs in service details (#2440)

2026-09-28 13:57:36 -04:00

systemd_test.go

feat: show systemd service logs in service details (#2440)

2026-09-28 13:57:36 -04:00

systemd.go

feat: show systemd service logs in service details (#2440)

2026-09-28 13:57:36 -04:00

update.go

feat: add fingerprint command to agent (#1726)

2026-02-06 14:32:57 -05:00

uptime_linux_test.go

fix(agent): read /proc/uptime on linux instead of sysinfo(2) (#2180)

2026-08-18 15:18:33 -04:00

uptime_linux.go

fix(agent): read /proc/uptime on linux instead of sysinfo(2) (#2180)

2026-08-18 15:18:33 -04:00

uptime_stub.go

fix(agent): read /proc/uptime on linux instead of sysinfo(2) (#2180)

2026-08-18 15:18:33 -04:00