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adjust calculation of cached memory (#1187, #1196)

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henrygd
2025-09-24 13:23:59 -04:00
parent 79fbbb7ad0
commit d295507c0b
1 changed files with 9 additions and 4 deletions
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13
agent/system.go
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@@ -100,14 +100,19 @@ func (a *Agent) getSystemStats() system.Stats {
systemStats.Swap = bytesToGigabytes(v.SwapTotal) systemStats.Swap = bytesToGigabytes(v.SwapTotal)
systemStats.SwapUsed = bytesToGigabytes(v.SwapTotal - v.SwapFree - v.SwapCached) systemStats.SwapUsed = bytesToGigabytes(v.SwapTotal - v.SwapFree - v.SwapCached)
// cache + buffers value for default mem calculation // cache + buffers value for default mem calculation
cacheBuff := v.Total - v.Free - v.Used
// htop memory calculation overrides
if a.memCalc == "htop" {
// note: gopsutil automatically adds SReclaimable to v.Cached // note: gopsutil automatically adds SReclaimable to v.Cached
cacheBuff = v.Cached + v.Buffers - v.Shared cacheBuff := v.Cached + v.Buffers - v.Shared
// htop memory calculation overrides (likely outdated as of mid 2025)
if a.memCalc == "htop" {
// cacheBuff = v.Cached + v.Buffers - v.Shared
v.Used = v.Total - (v.Free + cacheBuff) v.Used = v.Total - (v.Free + cacheBuff)
v.UsedPercent = float64(v.Used) / float64(v.Total) * 100.0 v.UsedPercent = float64(v.Used) / float64(v.Total) * 100.0
} }
// if a.memCalc == "legacy" {
// v.Used = v.Total - v.Free - v.Buffers - v.Cached
// cacheBuff = v.Total - v.Free - v.Used
// v.UsedPercent = float64(v.Used) / float64(v.Total) * 100.0
// }
// subtract ZFS ARC size from used memory and add as its own category // subtract ZFS ARC size from used memory and add as its own category
if a.zfs { if a.zfs {
if arcSize, _ := getARCSize(); arcSize > 0 && arcSize < v.Used { if arcSize, _ := getARCSize(); arcSize > 0 && arcSize < v.Used {