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998 Commits

Author SHA1 Message Date
Suren Baghdasaryan 441dc7c66b lmkd/tests: Move tests into presubmit-large category to avoid timeouts am: c58acac201 am: baeb509b2e 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1969139

Change-Id: Ic7f3b601c89299404fec4be0281cd03cce48fffc
 2022-02-02 19:55:20 +00:00
Suren Baghdasaryan baeb509b2e lmkd/tests: Move tests into presubmit-large category to avoid timeouts am: c58acac201 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1969139

Change-Id: I5adb706b3a6f70bdded22a11ca3eb3709573554e
 2022-02-02 19:44:08 +00:00
Suren Baghdasaryan c58acac201 lmkd/tests: Move tests into presubmit-large category to avoid timeouts 
Since lmkd tests require time to build up memory pressure, they cause
timeouts when run as part of presubmits. Move them into the
presubmit-large category with higher timeout to prevent such failures.

Bug: 217478668
Bug: 203597692
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I690133c9f849da58b85884a7d7b463f5b518c12f
 2022-02-02 09:27:47 -08:00
Suren Baghdasaryan 73bdbb628e lmkd/tests: Add a test to check for lmkd process reaping capability am: 683d6cbc2d am: 4805030ba6 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1964686

Change-Id: Ib62946f204fd993e380b8a51d1af7bedba6035b2
 2022-02-02 02:15:09 +00:00
Suren Baghdasaryan 4805030ba6 lmkd/tests: Add a test to check for lmkd process reaping capability am: 683d6cbc2d 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1964686

Change-Id: I87df80195eb51d156930e98d3ae862fe4a40cd12
 2022-02-02 01:58:40 +00:00
Suren Baghdasaryan 683d6cbc2d lmkd/tests: Add a test to check for lmkd process reaping capability 
Add a test to verify a process killed by lmkd is being reaped when
kernel supports process_mrelease syscall.

Bug: 203597692
Test: atest LmkdTest
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: Iac46f68c811e6e89378952ce1d29daf8a47514e2
 2022-02-01 11:40:47 -08:00
Suren Baghdasaryan 85154e02b0 lmkd: Set task profiles to the entire process am: 2bdf7f0c74 am: a734b3bff1 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1956501

Change-Id: I4dbfdc5d49055ef386aa5aa4dc1354a41010744f
 2022-01-25 05:46:16 +00:00
Suren Baghdasaryan a734b3bff1 lmkd: Set task profiles to the entire process am: 2bdf7f0c74 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1956501

Change-Id: I752c7df4c1bc4fe9867f88da95081949eaaa51b3
 2022-01-25 05:32:53 +00:00
Suren Baghdasaryan 2bdf7f0c74 lmkd: Set task profiles to the entire process 
set_process_group_and_prio sets task profiles for each thread in the
process separately. This can be avoided by setting task profiles to
the entire process using its pid.

Bug: 215557553
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I9c1917172019a42809385f6c9c084b8cb343b520
 2022-01-24 13:43:42 -08:00
Yi Kong 4185e681b1 Turn on AFDO for lmkd am: edd3325830 am: 7fb6b9cfb3 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1951041

Change-Id: Id74a11b3c1ddb9d374f76c10417d32051e08121a
 2022-01-18 21:37:32 +00:00
Yi Kong 7fb6b9cfb3 Turn on AFDO for lmkd am: edd3325830 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1951041

Change-Id: Iedc6b4d34d9489a66807d791261b4fa909cfab02
 2022-01-18 21:16:51 +00:00
Yi Kong edd3325830 Turn on AFDO for lmkd 
Enable PGO (profile guided optimisation) for better performance.

Bug: 195134194
Bug: 175205560
Test: presubmit
Change-Id: I97fb9945bfe9afa3396b850518fadaf7b9f38eaa
 2022-01-17 07:36:59 +00:00
Suren Baghdasaryan c871dc1afc lmkd: Implement watchdog thread am: af1b0e0627 am: ac20c53b63 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1894200

Change-Id: I66fc6bd55480517fd1374e376476ffef174f6679
 2022-01-06 22:24:04 +00:00
Suren Baghdasaryan 0fee08b289 lmkd: Use process_mrelease to reap the target process from a thread am: 7c3addb2a1 am: c4067fc9f2 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1904583

Change-Id: I224057073a3fd0c569eb5803eb2c56710b01fc77
 2022-01-06 22:24:03 +00:00
Suren Baghdasaryan ac20c53b63 lmkd: Implement watchdog thread am: af1b0e0627 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1894200

Change-Id: Ic96fb2bed49eb019d8163cd31671beb3176afd43
 2022-01-06 22:02:58 +00:00
Suren Baghdasaryan c4067fc9f2 lmkd: Use process_mrelease to reap the target process from a thread am: 7c3addb2a1 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1904583

Change-Id: I21a13a46890d2eee9ddd66cbeaec1c8f3e9317f4
 2022-01-06 22:02:57 +00:00
Suren Baghdasaryan af1b0e0627 lmkd: Implement watchdog thread 
To detect lmkd being stuck on a syscall for prolonged period of time,
introduce a watchdog thread which gets set when lmkd starts handling of
events and is reset after handling is done. If it takes more than the
timeout period (2 sec) to handle an event, watchdog wakes up and kills
the least important process to prevent mounting memory pressure caused
by lmkd lockup. After a kill, watchdog will wait for the reset for
another timeout period and kill again. This repeats until lmkd unlocks
and resets the watchdog.

Bug: 201671997
Test: induce random sleep in lmkd main handler and observe watchdog kills
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I56a55834582e11c06cc6cf9da3bc7380e634b301
 2022-01-06 18:14:25 +00:00
Suren Baghdasaryan 7c3addb2a1 lmkd: Use process_mrelease to reap the target process from a thread 
process_mrelease syscall can be used to expedite memory release of
a process after it was killed. This allows memory to be released
without the target process being scheduled, therefore does not depend
on target's priority or the CPU it's running on.
However process_mrelease syscall can take considerable time. Blocking
lmkd main thread during that time can cause memory pressure events
being missed while lmkd is busy reaping previous target's memory.
For this reason reaping should be done in a separate thread. This way
lmkd main thread can keep monitoring memory pressure while memory is
being released.
Introduce Reaper class which maintains a pool of threads to perform
process killing and reaping. The main thread submits a request to the
Reaper to kill and reap the process without blocking. If all the threads
in the pool are busy at the time the next kill is needed, the kill is
performed by the main thread without reaping.

Bug: 130172058
Bug: 189803002
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: If7b10fdd1838bdfeea3fed3031565feffe0b52be
 2022-01-06 18:14:14 +00:00
Suren Baghdasaryan 521ecf770e [automerger skipped] lmkd: Do not re-initialize lmkd when persistent properties are loaded am: aced711991 -s ours am: 2b9d78486a -s ours 
am skip reason: Merged-In Iba34fc719a18d58b890549c7415bec869d471901 with SHA-1 fcb9cb6de4 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/15738844

Change-Id: I64fbffc972ef685cb42314ae9c272165b7735eae
 2021-12-22 20:51:46 +00:00
Suren Baghdasaryan 4056ed3b29 [automerger skipped] lmkd: Add support for persist.device_config.lmkd_native.* properties am: b91ecaa3e8 -s ours am: e01b07d4a7 -s ours 
am skip reason: Merged-In Ia48fd51eab126d307a1604530b642e86cf250688 with SHA-1 e7d82ee7e7 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/15738843

Change-Id: I05a07bc6ccd42c8cb809bfed6863d2992ae97371
 2021-12-22 20:51:45 +00:00
Suren Baghdasaryan 2b9d78486a [automerger skipped] lmkd: Do not re-initialize lmkd when persistent properties are loaded am: aced711991 -s ours 
am skip reason: Merged-In Iba34fc719a18d58b890549c7415bec869d471901 with SHA-1 fcb9cb6de4 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/15738844

Change-Id: Ic644b480d12e69b2a4efa4625c3c30dcbac4f616
 2021-12-22 20:26:03 +00:00
Suren Baghdasaryan e01b07d4a7 [automerger skipped] lmkd: Add support for persist.device_config.lmkd_native.* properties am: b91ecaa3e8 -s ours 
am skip reason: Merged-In Ia48fd51eab126d307a1604530b642e86cf250688 with SHA-1 e7d82ee7e7 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/15738843

Change-Id: I2379d168b62945e550bf521f8100454b8cf6a3f2
 2021-12-22 20:26:00 +00:00
liuhailong 986595819d lmkd: Fix lowmem_minfree out of bounds am: cf8af501dc am: 53df06cdf1 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1908669

Change-Id: I203fb9b1d0719c4fb8fccda44d48dc468b3927cf
 2021-12-07 03:07:50 +00:00
liuhailong 53df06cdf1 lmkd: Fix lowmem_minfree out of bounds am: cf8af501dc 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1908669

Change-Id: Ie928b2d3c3882dafcf591a0487eb73c0d3b0b73a
 2021-12-07 02:52:13 +00:00
liuhailong cf8af501dc lmkd: Fix lowmem_minfree out of bounds 
lmkd daemon launches before system_server. If lowmem_targets_size
does not initialize by system_server, the value will be zero.
Before system_server starts lmkd receives a psi event
and debug_process_killing on, the lmkd crashes here.

Bug: 209090314
Signed-off-by: liuhailong <liuhailong@oppo.com>
Change-Id: I0736a882ed1ff5eee2b07676ae590a2cb2a7721c
 2021-12-04 17:59:24 +08:00
Suren Baghdasaryan ac36e3a50a lmkd: fix low swap threshold failing to update after reinit am: 6e6d14b387 am: 07de899509 am: 6d2d6d4d62 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1874517

Change-Id: I5efeb150d303d81fbd3575171bb6cef40a278505
 2021-10-28 23:30:18 +00:00
Suren Baghdasaryan 6d2d6d4d62 lmkd: fix low swap threshold failing to update after reinit am: 6e6d14b387 am: 07de899509 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1874517

Change-Id: I1527091b5889d57c237cbaccea373effc2ee94a6
 2021-10-28 23:18:38 +00:00
Suren Baghdasaryan 07de899509 lmkd: fix low swap threshold failing to update after reinit am: 6e6d14b387 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1874517

Change-Id: I2d5854cca756b90ac16b941628b35fe2a32ec802
 2021-10-28 23:00:59 +00:00
Suren Baghdasaryan 6e6d14b387 lmkd: fix low swap threshold failing to update after reinit 
lmkd calculates low swap threshold using total available swap and
ro.lmk.swap_free_low_percentage property. A wrong assumption is made that
both these values are constant and therefore the threshold can be
calculated once and reused later. However ro.lmk.swap_free_low_percentage
can be changed by the user and lmkd --reinit issued to reapply new
configuration. If that happens low swap threshold will not be updated.
Fix this by calculating the threshold whenever it is used. The overhead
of that calculation is negligible.

Bug: 203161607
Test: setprop ro.lmk.swap_free_low_percentage <new value>; lmkd --reinit
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: Idff50655a75d006ea86d9ab10ca54c375c4bea46
 2021-10-28 13:30:08 -07:00
Suren Baghdasaryan f269e20364 Replace writepid with task_profiles command for cgroup migration am: 1938f90eb8 am: 95b23108fa am: 9e0fe78675 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1740140

Change-Id: I72c4b517729b76c66090c86f2824773055036118
 2021-10-15 18:44:28 +00:00
Suren Baghdasaryan 9e0fe78675 Replace writepid with task_profiles command for cgroup migration am: 1938f90eb8 am: 95b23108fa 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1740140

Change-Id: I0b4f462cc61e8c4b6388edd239ab417a86ca8921
 2021-10-15 18:30:04 +00:00
Suren Baghdasaryan 95b23108fa Replace writepid with task_profiles command for cgroup migration am: 1938f90eb8 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1740140

Change-Id: I0762beb6cf6e7a081956938335f85c91f4716bac
 2021-10-15 18:18:07 +00:00
Suren Baghdasaryan 1938f90eb8 Replace writepid with task_profiles command for cgroup migration 
writepid command usage to join a cgroup has been deprecated in favor
of a more flexible approach using task_profiles. This way cgroup path
is not hardcoded and cgroup changes can be easily made. Replace
writepid with task_profiles command to migrate between cgroups.

Bug: 191283136
Test: build and boot
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I594a5fc5e988f812237bd226aaecefa5f1159d2d
 2021-10-15 16:40:18 +00:00
Wei Wang cdfda035f2 [automerger skipped] lmkd: move to foreground cpuset before killing am: e80774f4b7 -s ours 
am skip reason: Merged-In Id475625e0d892fb7111a2cf054d1b57d17003d5a with SHA-1 730e7a9248 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/15956952

Change-Id: I56b16242e84de7041d06fca9f434e9765b828e5f
 2021-10-01 20:34:31 +00:00
Wei Wang efff2cd14b lmkd: move to foreground cpuset before killing am: 730e7a9248 am: c2fdae89e4 am: 7cc53280b3 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1842588

Change-Id: Ieee9b828bd2bf1b754a039284db6775fe8f9c9c5
 2021-10-01 18:15:26 +00:00
Wei Wang 7cc53280b3 lmkd: move to foreground cpuset before killing am: 730e7a9248 am: c2fdae89e4 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1842588

Change-Id: Ibbc084bafb4b4cbc5ec870076d2aa35238af799d
 2021-10-01 18:06:29 +00:00
Wei Wang c2fdae89e4 lmkd: move to foreground cpuset before killing am: 730e7a9248 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1842588

Change-Id: I167412b9121920a1efea698a45447c1bd507f671
 2021-10-01 17:58:01 +00:00
Wei Wang e80774f4b7 lmkd: move to foreground cpuset before killing 
Test: Build and boot
Bug: 199797672
Signed-off-by: Wei Wang <wvw@google.com>
Merged-In: Id475625e0d892fb7111a2cf054d1b57d17003d5a
Change-Id: Id475625e0d892fb7111a2cf054d1b57d17003d5a
(cherry picked from commit 730e7a9248)
 2021-09-30 23:25:34 -07:00
Wei Wang 730e7a9248 lmkd: move to foreground cpuset before killing 
Test: Build and boot
Bug: 199797672
Signed-off-by: Wei Wang <wvw@google.com>
Change-Id: Id475625e0d892fb7111a2cf054d1b57d17003d5a
 2021-09-30 23:24:11 -07:00
Wei Wang f59352a4d3 [automerger skipped] lmkd: use fd cache for cgroup migration am: 328e612f1b -s ours 
am skip reason: Merged-In Ie7a9eb9676c58309f1407c5f8cc59b302f107d38 with SHA-1 0162e0361f is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/15881156

Change-Id: I46b16bb312656e4c4f30d700f4ec4ff53cd0898e
 2021-09-22 22:19:41 +00:00
Wei Wang d1165a4975 [automerger skipped] lmkd: migrate process to FOREGROUND sched group before kill am: 90f3c9e5c6 -s ours 
am skip reason: skipped by user wvw

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/15828583

Change-Id: I315aeaecde8646dbcb7e5ee13e919ccdc0bcc331
 2021-09-22 22:19:39 +00:00
Wei Wang 7bfd31e6e3 lmkd: use fd cache for cgroup migration am: 0162e0361f am: dbb9a69dc6 am: 022fa421c6 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1833054

Change-Id: I0405e4cf84706d15bf97fda53e8f5711943ca9f5
 2021-09-22 18:59:48 +00:00
Wei Wang 022fa421c6 lmkd: use fd cache for cgroup migration am: 0162e0361f am: dbb9a69dc6 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1833054

Change-Id: I6e90cb69fb9e446239212737f8ef2643699b1360
 2021-09-22 18:38:47 +00:00
Wei Wang 328e612f1b lmkd: use fd cache for cgroup migration 
Test: Build
Bug: 199797672
Signed-off-by: Wei Wang <wvw@google.com>
Change-Id: Ie7a9eb9676c58309f1407c5f8cc59b302f107d38
Merged-In: Ie7a9eb9676c58309f1407c5f8cc59b302f107d38
(cherry picked from commit 0162e0361f)
 2021-09-22 18:35:19 +00:00
Wei Wang dbb9a69dc6 lmkd: use fd cache for cgroup migration am: 0162e0361f 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1833054

Change-Id: Ie70f8800acdef24ccf8731215ce1b1cae8e01539
 2021-09-22 18:27:25 +00:00
Wei Wang 90f3c9e5c6 lmkd: migrate process to FOREGROUND sched group before kill 
BG group may have settings such as cpu.shares impacting reclaim
performance. Let us migrate task to foreground sched group similarly to
cpuset group.

Test: Build
Bug: 199797672
Signed-off-by: Wei Wang <wvw@google.com>
Change-Id: I75ee9f3486a2c76e65267a98e39edff96a5e1673
(cherry picked from commit 0195bcdba7)
 2021-09-21 14:54:44 -07:00
Wei Wang 0162e0361f lmkd: use fd cache for cgroup migration 
Test: Build
Bug: 199797672
Signed-off-by: Wei Wang <wvw@google.com>
Change-Id: Ie7a9eb9676c58309f1407c5f8cc59b302f107d38
 2021-09-21 14:38:49 -07:00
Suren Baghdasaryan d31d0d1eb2 [automerger skipped] lmkd: Do not re-initialize lmkd when persistent properties are loaded am: fcb9cb6de4 -s ours 
am skip reason: Merged-In Iba34fc719a18d58b890549c7415bec869d471901 with SHA-1 0e64eadc21 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/15798712

Change-Id: I414d3c898dd7503119e37f9e7ad2a601c51cbbba
 2021-09-15 23:18:00 +00:00
Suren Baghdasaryan d941a3e7bb [automerger skipped] lmkd: Add support for persist.device_config.lmkd_native.* properties am: e7d82ee7e7 -s ours 
am skip reason: Merged-In Ia48fd51eab126d307a1604530b642e86cf250688 with SHA-1 d0a800402c is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/15788312

Change-Id: Ice7ea4aac70782659cc2009cea1e6614b13d85a9
 2021-09-15 23:17:59 +00:00
Wei Wang 193b84cd38 lmkd: migrate process to FOREGROUND sched group before kill am: 0195bcdba7 am: a95efc0941 am: 50bf1dc40c 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1825954

Change-Id: I73a62f67750c64f87739d64ea0ba3f9010b94f70
 2021-09-14 15:13:34 +00:00