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- What: /proc/pid/smaps_rollup
- Date: August 2017
- Contact: Daniel Colascione <[email protected]>
- Description:
- This file provides pre-summed memory information for a
- process. The format is almost identical to /proc/pid/smaps,
- except instead of an entry for each VMA in a process,
- smaps_rollup has a single entry (tagged "[rollup]")
- for which each field is the sum of the corresponding
- fields from all the maps in /proc/pid/smaps.
- Additionally, the fields Pss_Anon, Pss_File and Pss_Shmem
- are not present in /proc/pid/smaps. These fields represent
- the sum of the Pss field of each type (anon, file, shmem).
- For more details, see Documentation/filesystems/proc.rst
- and the procfs man page.
- Typical output looks like this::
- 00100000-ff709000 ---p 00000000 00:00 0 [rollup]
- Size: 1192 kB
- KernelPageSize: 4 kB
- MMUPageSize: 4 kB
- Rss: 884 kB
- Pss: 385 kB
- Pss_Dirty: 68 kB
- Pss_Anon: 301 kB
- Pss_File: 80 kB
- Pss_Shmem: 4 kB
- Shared_Clean: 696 kB
- Shared_Dirty: 0 kB
- Private_Clean: 120 kB
- Private_Dirty: 68 kB
- Referenced: 884 kB
- Anonymous: 68 kB
- LazyFree: 0 kB
- AnonHugePages: 0 kB
- ShmemPmdMapped: 0 kB
- Shared_Hugetlb: 0 kB
- Private_Hugetlb: 0 kB
- Swap: 0 kB
- SwapPss: 0 kB
- Locked: 385 kB
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