linux/fs/proc
Stefan Roesch d21077fbc2 mm: add new KSM process and sysfs knobs
This adds the general_profit KSM sysfs knob and the process profit metric
knobs to ksm_stat.

1) expose general_profit metric

   The documentation mentions a general profit metric, however this
   metric is not calculated.  In addition the formula depends on the size
   of internal structures, which makes it more difficult for an
   administrator to make the calculation.  Adding the metric for a better
   user experience.

2) document general_profit sysfs knob

3) calculate ksm process profit metric

   The ksm documentation mentions the process profit metric and how to
   calculate it.  This adds the calculation of the metric.

4) mm: expose ksm process profit metric in ksm_stat

   This exposes the ksm process profit metric in /proc/<pid>/ksm_stat.
   The documentation mentions the formula for the ksm process profit
   metric, however it does not calculate it.  In addition the formula
   depends on the size of internal structures.  So it makes sense to
   expose it.

5) document new procfs ksm knobs

Link: https://lkml.kernel.org/r/20230418051342.1919757-3-shr@devkernel.io
Signed-off-by: Stefan Roesch <shr@devkernel.io>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Rik van Riel <riel@surriel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-04-21 14:52:03 -07:00
..
array.c capability: just use a 'u64' instead of a 'u32[2]' array 2023-03-01 10:01:22 -08:00
base.c mm: add new KSM process and sysfs knobs 2023-04-21 14:52:03 -07:00
bootconfig.c proc: bootconfig: Add null pointer check 2022-04-02 08:40:09 -04:00
cmdline.c proc: mark /proc/cmdline as permanent 2023-02-02 22:50:02 -08:00
consoles.c proc: consoles: use console_list_lock for list iteration 2022-12-02 11:25:02 +01:00
cpuinfo.c x86/aperfmperf: Replace aperfmperf_get_khz() 2022-04-27 20:22:19 +02:00
devices.c proc: mark more files as permanent 2022-10-03 14:21:45 -07:00
fd.c fs.idmapped.v6.3 2023-02-20 11:53:11 -08:00
fd.h fs: port ->permission() to pass mnt_idmap 2023-01-19 09:24:28 +01:00
generic.c fs: port ->getattr() to pass mnt_idmap 2023-01-19 09:24:25 +01:00
inode.c take care to handle NULL ->proc_lseek() 2022-08-14 15:16:18 -04:00
internal.h fs: port ->getattr() to pass mnt_idmap 2023-01-19 09:24:25 +01:00
interrupts.c
Kconfig proc: make config PROC_CHILDREN depend on PROC_FS 2022-10-03 14:21:43 -07:00
kcore.c mm: vmalloc: convert vread() to vread_iter() 2023-04-05 19:42:57 -07:00
kmsg.c printk changes for 6.1 2022-10-10 11:24:19 -07:00
loadavg.c proc: mark more files as permanent 2022-10-03 14:21:45 -07:00
Makefile proc: bootconfig: Add /proc/bootconfig to show boot config list 2020-01-13 13:19:39 -05:00
meminfo.c mm/memtest: add results of early memtest to /proc/meminfo 2023-04-05 19:42:55 -07:00
namespaces.c Merge branch 'work.openat2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-01-29 11:20:24 -08:00
nommu.c proc: delete unused <linux/uaccess.h> includes 2022-07-17 17:31:39 -07:00
page.c mm: Add PG_arch_3 page flag 2022-11-29 09:26:07 +00:00
proc_net.c fs: port ->getattr() to pass mnt_idmap 2023-01-19 09:24:25 +01:00
proc_sysctl.c sysctl: fix proc_dobool() usability 2023-02-21 13:34:07 -08:00
proc_tty.c proc: delete unused <linux/uaccess.h> includes 2022-07-17 17:31:39 -07:00
root.c fs: port ->getattr() to pass mnt_idmap 2023-01-19 09:24:25 +01:00
self.c Revert "proc: don't allow async path resolution of /proc/self components" 2021-02-23 20:32:11 -07:00
softirqs.c proc: mark more files as permanent 2022-10-03 14:21:45 -07:00
stat.c fs/proc/uptime.c: Fix idle time reporting in /proc/uptime 2021-10-05 15:51:35 +02:00
task_mmu.c smaps: fix defined but not used smaps_shmem_walk_ops 2023-04-18 16:29:54 -07:00
task_nommu.c mm/nommu: factor out check for NOMMU shared mappings into is_nommu_shared_mapping() 2023-01-18 17:12:56 -08:00
thread_self.c Revert "proc: don't allow async path resolution of /proc/thread-self components" 2021-02-23 20:32:11 -07:00
uptime.c proc: mark more files as permanent 2022-10-03 14:21:45 -07:00
util.c fs/proc/util.c: include fs/proc/internal.h for name_to_int() 2019-01-04 13:13:45 -08:00
version.c proc: mark more files as permanent 2022-10-03 14:21:45 -07:00
vmcore.c mm: replace vma->vm_flags direct modifications with modifier calls 2023-02-09 16:51:39 -08:00