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# perfmonger-plot-formatter
`perfmonger-plot-formatter` is a command to generate data files for plotting
various metrices recorded by `perfmonger-recorder`.
## Notes on memory usage records
### `free(1)` compatible summarization
- total: `MemStat.MemTotal`
- used: `if (memUsed < 0) { MemStat.MemTotal - MemStat.MemFree } else { memUsed }`
- memUsed := `MemStat.MemTotal - MemStat.MemFree - mainCached - MemStat.Buffers`
- mainCached := `MemStat.Cached + MemStat.SReclaimable`
- free: `MemStat.MemFree`
- shared: `MemStat.Shmem`
- buffers: `MemStat.Buffers`
- cache: `mainCached`
- mainCached := `MemStat.Cached + MemStat.SReclaimable`
- available: `MemStat.MemAvailable`
### Additional info
- hugeTotal: `MemStat.HugePages_Total`
- hugeUsed: `MemStat.HugePages_Total - MemStat.HugePages_Free`
Version data entries
4 entries across 4 versions & 1 rubygems