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Author SHA1 Message Date
Suren Baghdasaryan 9f0e529b51 [automerger skipped] lmkd: Set task profiles to the entire process am: b8cdb6ac91 -s ours 
am skip reason: Merged-In I9c1917172019a42809385f6c9c084b8cb343b520 with SHA-1 2bdf7f0c74 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/16687016

Change-Id: I1fdfa86e29514f91dc06eaa35c6f1ed10b7f7ce4
 2022-01-26 00:51:33 +00:00
Suren Baghdasaryan 3fcdbaaeab lmkd: Set task profiles to the entire process am: 2bdf7f0c74 am: a734b3bff1 am: 85154e02b0 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1956501

Change-Id: I824f5e7303b33eb4bc132f0e1237fde462d600a6
 2022-01-25 06:01:54 +00:00
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 b8cdb6ac91 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
Merged-In: I9c1917172019a42809385f6c9c084b8cb343b520
 2022-01-25 05:17:00 +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 467ea66616 Turn on AFDO for lmkd am: edd3325830 am: 7fb6b9cfb3 am: 4185e681b1 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1951041

Change-Id: Ic8cb804c2b32a0f75d29ae30f14981de7d5962ed
 2022-01-18 21:54:23 +00:00
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 bdb7ccf532 lmkd: Implement watchdog thread am: af1b0e0627 am: ac20c53b63 am: c871dc1afc 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1894200

Change-Id: I13e24f1b7dfe92359d56344e133843f0f64cec4e
 2022-01-06 22:39:07 +00:00
Suren Baghdasaryan 4253f17b9d lmkd: Use process_mrelease to reap the target process from a thread am: 7c3addb2a1 am: c4067fc9f2 am: 0fee08b289 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1904583

Change-Id: I24dc3a14edb46028b1768b7e5e9244a48559216d
 2022-01-06 22:39:06 +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 57cdc19e34 [automerger skipped] lmkd: Do not re-initialize lmkd when persistent properties are loaded am: aced711991 -s ours am: 2b9d78486a -s ours am: 521ecf770e -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: Ic8216d7b3cbf98eb4f3d8629056d177b8a4e4224
 2021-12-22 21:01:50 +00:00
Suren Baghdasaryan 9a5d09e4f7 [automerger skipped] lmkd: Add support for persist.device_config.lmkd_native.* properties am: b91ecaa3e8 -s ours am: e01b07d4a7 -s ours am: 4056ed3b29 -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: I91db060dc84b1d403c21f8cff24b4f0c32d01ab4
 2021-12-22 21:01:49 +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 3ffa7f5391 [automerger skipped] lmkd: Do not re-initialize lmkd when persistent properties are loaded am: aced711991 -s ours am: 2b9d78486a -s ours am: 931bf0954f -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: I8b849ade888210c334e1e1bdc783c906094d520d
 2021-12-22 20:34:06 +00:00
Suren Baghdasaryan 6cba2d654c [automerger skipped] lmkd: Add support for persist.device_config.lmkd_native.* properties am: b91ecaa3e8 -s ours am: e01b07d4a7 -s ours am: 4fe0d250e8 -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: I5e0b25a603424ac0e2c22839704c212e0b6a0133
 2021-12-22 20:34:05 +00:00
Suren Baghdasaryan 931bf0954f [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: Ic3c8969383c707767e286ba25cfb15f747aa5a7b
 2021-12-22 20:29:15 +00:00
Suren Baghdasaryan 4fe0d250e8 [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: Ic9aa0f37cb0f0b8d6bb8440a921965030f3a9fbc
 2021-12-22 20:29:13 +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 0ea9a37079 lmkd: Fix lowmem_minfree out of bounds am: cf8af501dc am: 53df06cdf1 am: 986595819d 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1908669

Change-Id: Idd0176344f3d3a96cb972dd695ade200c1013a15
 2021-12-07 03:23:35 +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 d3677b36ef lmkd: fix low swap threshold failing to update after reinit am: 6e6d14b387 am: 07de899509 am: 6d2d6d4d62 am: ac36e3a50a 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1874517

Change-Id: Id29a68a3ca01890be656f3cbfe4c8e99e6e83b96
 2021-10-28 23:47:20 +00:00
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 96dbc22dbc Replace writepid with task_profiles command for cgroup migration am: 1938f90eb8 am: 95b23108fa am: 9e0fe78675 am: f269e20364 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1740140

Change-Id: I86b478316ceefc19b2e61c2fdf4b518230db2c7a
 2021-10-15 18:55:56 +00:00
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 76c70fa606 [automerger skipped] lmkd: move to foreground cpuset before killing am: e80774f4b7 am: c69a10f2e2 -s ours 
am skip reason: Merged-In Id475625e0d892fb7111a2cf054d1b57d17003d5a with SHA-1 e80774f4b7 is already in history

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

Change-Id: Ia18cdd6d15a1f2bc24b9b7e97e148bee43a9877a
 2021-10-01 20:51:33 +00:00
Wei Wang be5e5bb40e [automerger skipped] lmkd: move to foreground cpuset before killing am: e80774f4b7 -s ours am: cdfda035f2 -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: Ie87ac4f9b2aee3de378342a0f3c00857a8cd3b1b
 2021-10-01 20:50:12 +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 c69a10f2e2 lmkd: move to foreground cpuset before killing am: e80774f4b7 
Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/15956952

Change-Id: I61c3eea83e48d139813d987831b1a72eb7d051d9
 2021-10-01 20:34:18 +00:00
Wei Wang 44cd71066b lmkd: move to foreground cpuset before killing am: 730e7a9248 am: c2fdae89e4 am: 7cc53280b3 am: efff2cd14b 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/1842588

Change-Id: I205a26b8f45d42c471a6145cdbcebc4be1b4ee7a
 2021-10-01 18:23:39 +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