* + mm-memcg-add-per-memcg-zswap-writeback-stat.patch added to mm-unstable branch
@ 2023-11-27 20:43 Andrew Morton
0 siblings, 0 replies; 3+ messages in thread
From: Andrew Morton @ 2023-11-27 20:43 UTC (permalink / raw)
To: mm-commits, yosryahmed, vitaly.wool, sjenning, shuah, shakeelb,
roman.gushchin, nphamcs, muchun.song, mhocko, hannes, ddstreet,
chrisl, cerasuolodomenico, akpm
The patch titled
Subject: mm: memcg: add per-memcg zswap writeback stat
has been added to the -mm mm-unstable branch. Its filename is
mm-memcg-add-per-memcg-zswap-writeback-stat.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-memcg-add-per-memcg-zswap-writeback-stat.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Domenico Cerasuolo <cerasuolodomenico@gmail.com>
Subject: mm: memcg: add per-memcg zswap writeback stat
Date: Mon, 27 Nov 2023 11:37:01 -0800
Since zswap now writes back pages from memcg-specific LRUs, we now need a
new stat to show writebacks count for each memcg.
Link: https://lkml.kernel.org/r/20231127193703.1980089-5-nphamcs@gmail.com
Signed-off-by: Domenico Cerasuolo <cerasuolodomenico@gmail.com>
Signed-off-by: Nhat Pham <nphamcs@gmail.com>
Suggested-by: Nhat Pham <nphamcs@gmail.com>
Cc: Chris Li <chrisl@kernel.org>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Seth Jennings <sjenning@redhat.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Vitaly Wool <vitaly.wool@konsulko.com>
Cc: Yosry Ahmed <yosryahmed@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
include/linux/vm_event_item.h | 1 +
mm/memcontrol.c | 1 +
mm/vmstat.c | 1 +
mm/zswap.c | 3 +++
4 files changed, 6 insertions(+)
--- a/include/linux/vm_event_item.h~mm-memcg-add-per-memcg-zswap-writeback-stat
+++ a/include/linux/vm_event_item.h
@@ -142,6 +142,7 @@ enum vm_event_item { PGPGIN, PGPGOUT, PS
#ifdef CONFIG_ZSWAP
ZSWPIN,
ZSWPOUT,
+ ZSWP_WB,
#endif
#ifdef CONFIG_X86
DIRECT_MAP_LEVEL2_SPLIT,
--- a/mm/memcontrol.c~mm-memcg-add-per-memcg-zswap-writeback-stat
+++ a/mm/memcontrol.c
@@ -703,6 +703,7 @@ static const unsigned int memcg_vm_event
#if defined(CONFIG_MEMCG_KMEM) && defined(CONFIG_ZSWAP)
ZSWPIN,
ZSWPOUT,
+ ZSWP_WB,
#endif
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
THP_FAULT_ALLOC,
--- a/mm/vmstat.c~mm-memcg-add-per-memcg-zswap-writeback-stat
+++ a/mm/vmstat.c
@@ -1401,6 +1401,7 @@ const char * const vmstat_text[] = {
#ifdef CONFIG_ZSWAP
"zswpin",
"zswpout",
+ "zswp_wb",
#endif
#ifdef CONFIG_X86
"direct_map_level2_splits",
--- a/mm/zswap.c~mm-memcg-add-per-memcg-zswap-writeback-stat
+++ a/mm/zswap.c
@@ -754,6 +754,9 @@ static enum lru_status shrink_memcg_cb(s
}
zswap_written_back_pages++;
+ if (entry->objcg)
+ count_objcg_event(entry->objcg, ZSWP_WB);
+
/*
* Writeback started successfully, the page now belongs to the
* swapcache. Drop the entry from zswap - unless invalidate already
_
Patches currently in -mm which might be from cerasuolodomenico@gmail.com are
zswap-make-shrinking-memcg-aware.patch
mm-memcg-add-per-memcg-zswap-writeback-stat.patch
selftests-cgroup-update-per-memcg-zswap-writeback-selftest.patch
^ permalink raw reply [flat|nested] 3+ messages in thread
* + mm-memcg-add-per-memcg-zswap-writeback-stat.patch added to mm-unstable branch
@ 2023-11-29 2:42 Andrew Morton
0 siblings, 0 replies; 3+ messages in thread
From: Andrew Morton @ 2023-11-29 2:42 UTC (permalink / raw)
To: mm-commits, yosryahmed, vitaly.wool, sjenning, shuah, shakeelb,
roman.gushchin, nphamcs, muchun.song, mhocko, hannes, ddstreet,
chrisl, cerasuolodomenico, akpm
The patch titled
Subject: mm: memcg: add per-memcg zswap writeback stat
has been added to the -mm mm-unstable branch. Its filename is
mm-memcg-add-per-memcg-zswap-writeback-stat.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-memcg-add-per-memcg-zswap-writeback-stat.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Domenico Cerasuolo <cerasuolodomenico@gmail.com>
Subject: mm: memcg: add per-memcg zswap writeback stat
Date: Mon, 27 Nov 2023 15:45:58 -0800
Since zswap now writes back pages from memcg-specific LRUs, we now need a
new stat to show writebacks count for each memcg.
Link: https://lkml.kernel.org/r/20231127234600.2971029-5-nphamcs@gmail.com
Signed-off-by: Domenico Cerasuolo <cerasuolodomenico@gmail.com>
Signed-off-by: Nhat Pham <nphamcs@gmail.com>
Suggested-by: Nhat Pham <nphamcs@gmail.com>
Cc: Chris Li <chrisl@kernel.org>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Seth Jennings <sjenning@redhat.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Vitaly Wool <vitaly.wool@konsulko.com>
Cc: Yosry Ahmed <yosryahmed@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
include/linux/vm_event_item.h | 1 +
mm/memcontrol.c | 1 +
mm/vmstat.c | 1 +
mm/zswap.c | 3 +++
4 files changed, 6 insertions(+)
--- a/include/linux/vm_event_item.h~mm-memcg-add-per-memcg-zswap-writeback-stat
+++ a/include/linux/vm_event_item.h
@@ -142,6 +142,7 @@ enum vm_event_item { PGPGIN, PGPGOUT, PS
#ifdef CONFIG_ZSWAP
ZSWPIN,
ZSWPOUT,
+ ZSWP_WB,
#endif
#ifdef CONFIG_X86
DIRECT_MAP_LEVEL2_SPLIT,
--- a/mm/memcontrol.c~mm-memcg-add-per-memcg-zswap-writeback-stat
+++ a/mm/memcontrol.c
@@ -703,6 +703,7 @@ static const unsigned int memcg_vm_event
#if defined(CONFIG_MEMCG_KMEM) && defined(CONFIG_ZSWAP)
ZSWPIN,
ZSWPOUT,
+ ZSWP_WB,
#endif
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
THP_FAULT_ALLOC,
--- a/mm/vmstat.c~mm-memcg-add-per-memcg-zswap-writeback-stat
+++ a/mm/vmstat.c
@@ -1401,6 +1401,7 @@ const char * const vmstat_text[] = {
#ifdef CONFIG_ZSWAP
"zswpin",
"zswpout",
+ "zswp_wb",
#endif
#ifdef CONFIG_X86
"direct_map_level2_splits",
--- a/mm/zswap.c~mm-memcg-add-per-memcg-zswap-writeback-stat
+++ a/mm/zswap.c
@@ -754,6 +754,9 @@ static enum lru_status shrink_memcg_cb(s
}
zswap_written_back_pages++;
+ if (entry->objcg)
+ count_objcg_event(entry->objcg, ZSWP_WB);
+
/*
* Writeback started successfully, the page now belongs to the
* swapcache. Drop the entry from zswap - unless invalidate already
_
Patches currently in -mm which might be from cerasuolodomenico@gmail.com are
zswap-make-shrinking-memcg-aware.patch
mm-memcg-add-per-memcg-zswap-writeback-stat.patch
selftests-cgroup-update-per-memcg-zswap-writeback-selftest.patch
^ permalink raw reply [flat|nested] 3+ messages in thread
* + mm-memcg-add-per-memcg-zswap-writeback-stat.patch added to mm-unstable branch
@ 2023-10-18 20:09 Andrew Morton
0 siblings, 0 replies; 3+ messages in thread
From: Andrew Morton @ 2023-10-18 20:09 UTC (permalink / raw)
To: mm-commits, yosryahmed, vitaly.wool, sjenning, shuah, shakeelb,
roman.gushchin, nphamcs, muchun.song, mhocko, hannes, ddstreet,
cerasuolodomenico, akpm
The patch titled
Subject: mm: memcg: add per-memcg zswap writeback stat
has been added to the -mm mm-unstable branch. Its filename is
mm-memcg-add-per-memcg-zswap-writeback-stat.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-memcg-add-per-memcg-zswap-writeback-stat.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Domenico Cerasuolo <cerasuolodomenico@gmail.com>
Subject: mm: memcg: add per-memcg zswap writeback stat
Date: Tue, 17 Oct 2023 16:21:50 -0700
Since zswap now writes back pages from memcg-specific LRUs, we now need a
new stat to show writebacks count for each memcg.
Link: https://lkml.kernel.org/r/20231017232152.2605440-4-nphamcs@gmail.com
Suggested-by: Nhat Pham <nphamcs@gmail.com>
Signed-off-by: Domenico Cerasuolo <cerasuolodomenico@gmail.com>
Signed-off-by: Nhat Pham <nphamcs@gmail.com>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Seth Jennings <sjenning@redhat.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Vitaly Wool <vitaly.wool@konsulko.com>
Cc: Yosry Ahmed <yosryahmed@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
include/linux/memcontrol.h | 2 ++
mm/memcontrol.c | 15 +++++++++++++++
mm/zswap.c | 3 +++
3 files changed, 20 insertions(+)
--- a/include/linux/memcontrol.h~mm-memcg-add-per-memcg-zswap-writeback-stat
+++ a/include/linux/memcontrol.h
@@ -38,6 +38,7 @@ enum memcg_stat_item {
MEMCG_KMEM,
MEMCG_ZSWAP_B,
MEMCG_ZSWAPPED,
+ MEMCG_ZSWAP_WB,
MEMCG_NR_STAT,
};
@@ -1884,6 +1885,7 @@ static inline void count_objcg_event(str
bool obj_cgroup_may_zswap(struct obj_cgroup *objcg);
void obj_cgroup_charge_zswap(struct obj_cgroup *objcg, size_t size);
void obj_cgroup_uncharge_zswap(struct obj_cgroup *objcg, size_t size);
+void obj_cgroup_report_zswap_wb(struct obj_cgroup *objcg);
#else
static inline bool obj_cgroup_may_zswap(struct obj_cgroup *objcg)
{
--- a/mm/memcontrol.c~mm-memcg-add-per-memcg-zswap-writeback-stat
+++ a/mm/memcontrol.c
@@ -1521,6 +1521,7 @@ static const struct memory_stat memory_s
#if defined(CONFIG_MEMCG_KMEM) && defined(CONFIG_ZSWAP)
{ "zswap", MEMCG_ZSWAP_B },
{ "zswapped", MEMCG_ZSWAPPED },
+ { "zswap_wb", MEMCG_ZSWAP_WB },
#endif
{ "file_mapped", NR_FILE_MAPPED },
{ "file_dirty", NR_FILE_DIRTY },
@@ -1557,6 +1558,7 @@ static int memcg_page_state_unit(int ite
switch (item) {
case MEMCG_PERCPU_B:
case MEMCG_ZSWAP_B:
+ case MEMCG_ZSWAP_WB:
case NR_SLAB_RECLAIMABLE_B:
case NR_SLAB_UNRECLAIMABLE_B:
return 1;
@@ -7899,6 +7901,19 @@ void obj_cgroup_uncharge_zswap(struct ob
rcu_read_unlock();
}
+void obj_cgroup_report_zswap_wb(struct obj_cgroup *objcg)
+{
+ struct mem_cgroup *memcg;
+
+ if (!cgroup_subsys_on_dfl(memory_cgrp_subsys))
+ return;
+
+ rcu_read_lock();
+ memcg = obj_cgroup_memcg(objcg);
+ mod_memcg_state(memcg, MEMCG_ZSWAP_WB, 1);
+ rcu_read_unlock();
+}
+
static u64 zswap_current_read(struct cgroup_subsys_state *css,
struct cftype *cft)
{
--- a/mm/zswap.c~mm-memcg-add-per-memcg-zswap-writeback-stat
+++ a/mm/zswap.c
@@ -704,6 +704,9 @@ static enum lru_status shrink_memcg_cb(s
}
zswap_written_back_pages++;
+ if (entry->objcg)
+ obj_cgroup_report_zswap_wb(entry->objcg);
+
/*
* Writeback started successfully, the page now belongs to the
* swapcache. Drop the entry from zswap - unless invalidate already
_
Patches currently in -mm which might be from cerasuolodomenico@gmail.com are
zswap-make-shrinking-memcg-aware.patch
mm-memcg-add-per-memcg-zswap-writeback-stat.patch
selftests-cgroup-update-per-memcg-zswap-writeback-selftest.patch
^ permalink raw reply [flat|nested] 3+ messages in thread
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