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Author SHA1 Message Date
Elliott Hughes e2e125a69f Don't define LINE_MAX. am: c2d8bfdf59 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/3034232

Change-Id: I722fe4ed08a9e451be95620c86a364794388435a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2024-04-15 23:32:22 +00:00
Elliott Hughes c2d8bfdf59 Don't define LINE_MAX. 
It's a POSIX mistake we'd been avoiding, but finally added to
bionic.

It's unclear to me that this code shouldn't just be using fscanf()
and getline() to simplify the code and avoid arbitrary hard-coded
limits -- since the code does do some allocation already -- but
that's a bigger cleanup for a code owner.

Change-Id: Ibab28f082a084c1f933ee6a39aa4ee3fa7868e5a
 2024-04-09 16:16:03 +00:00
Suren Baghdasaryan 7c2e756562 lmkd: update watermarks before the first kill am: 20de82dde2 am: af9d7fe055 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/3028841

Change-Id: Ia56c0de5b28c9bff4d71390b33beb0f362b211bb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2024-04-08 16:03:29 +00:00
Suren Baghdasaryan af9d7fe055 lmkd: update watermarks before the first kill am: 20de82dde2 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/3028841

Change-Id: Ib79f1d3fbcb08cb2b15e3861006e9806e5d94c52
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2024-04-08 15:53:56 +00:00
Suren Baghdasaryan 20de82dde2 lmkd: update watermarks before the first kill 
Change-Id: Ie8080fd8995c54fc8c1f5b94e77dbf32e33783fe
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
 2024-04-05 17:58:41 -07:00
Suren Baghdasaryan 5ef52d6f01 lmkd: introduce swap_compression_ratio tunable am: 63dd69984d am: 42dba7a8e0 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2620611

Change-Id: If85c22d8ca73941e3be74fe5a5e060a59c1482d7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2024-04-05 05:23:34 +00:00
Suren Baghdasaryan 42dba7a8e0 lmkd: introduce swap_compression_ratio tunable am: 63dd69984d 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2620611

Change-Id: I8676ede74373fefa0f51896e8b31cedf7da88337
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2024-04-05 05:05:02 +00:00
Suren Baghdasaryan 63dd69984d lmkd: introduce swap_compression_ratio tunable 
Free swap is calculated using the min of free swap that kernel would
consider using and easily available memory which can be used by ZRAM
for swapping purposes. However calculation does not consider the
average data compression ratio of ZRAM. Introduce a tunable to set
the average swap compression ratio used when evaluating the amount
of data which can be swapped. Default is set to 1 (no compression)
to keep current behavior. Setting it to 0 will ignore available memory
and assume that configured swap size can be always utilized fully.

Bug: 285854307
Bug: 327561101
Change-Id: I6b0f93ce24179ebf7365a3dbcd52c6e4a52ac200
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
 2024-04-04 23:28:04 +00:00
Carlos Galo 1221249fe9 Adding kswapd state monitoring with memevent_listener am: 6593e2cee6 am: 49fa9d895e 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/3025666

Change-Id: If644e45930a94618615e2c3aace72704ab06fe62
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2024-04-04 20:51:06 +00:00
Carlos Galo 49fa9d895e Adding kswapd state monitoring with memevent_listener am: 6593e2cee6 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/3025666

Change-Id: Id00cd93937e4c53128265e4171ccb361e156f66c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2024-04-04 20:33:50 +00:00
Carlos Galo 6593e2cee6 Adding kswapd state monitoring with memevent_listener 
Replacing mechanism of reading vmstats to detect kswapd with
memevents instead. Maintain vmstats mechanism if bpf is not supported by
current kernel.

Test: Verified lmkd receives kswapd state changes
Test: m
Bug: 330606003
Change-Id: I9b980a8b94e015d1b8e0986fff9113890420d102
Signed-off-by: Carlos Galo <carlosgalo@google.com>
 2024-04-03 15:38:07 -07:00
Carlos Galo 270c38ddf7 Renaming direct reclaim monitoring to memevent monitoring am: f9dfb20456 am: f806a7d6a4 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/3022599

Change-Id: I57f8129e563cc601970d75512bd6dbb82401dc74
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2024-04-03 19:02:58 +00:00
Carlos Galo f806a7d6a4 Renaming direct reclaim monitoring to memevent monitoring am: f9dfb20456 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/3022599

Change-Id: I77d2a7370cf0cf2d48ad6544cfb6ca3b8da332f9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2024-04-03 18:45:11 +00:00
Carlos Galo f9dfb20456 Renaming direct reclaim monitoring to memevent monitoring 
This monitoring will no longer only track direct reclaim state changes.
Adjusting naming to reflect the broader utilization.

Test: m
Bug: 330606003
Change-Id: Ib77b8b58cd6e8ce1296ffa14481018c29e979754
Signed-off-by: Carlos Galo <carlosgalo@google.com>
 2024-04-03 00:19:26 -07:00
Carlos Galo 99bfdc912b Add boot completed cmd to LMKD am: 65c1b5dcc5 am: 6a9574526a 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/3017682

Change-Id: I26c3a0d52f32813ab6894e5d7a6a41e4c39f7ce9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2024-04-03 00:30:47 +00:00
Carlos Galo 6a9574526a Add boot completed cmd to LMKD am: 65c1b5dcc5 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/3017682

Change-Id: I357c44a68f97608d7f9be1d567a417315209430b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2024-04-03 00:15:41 +00:00
Carlos Galo 65c1b5dcc5 Add boot completed cmd to LMKD 
Add new command to allow for post-boot actions to occur. This
will allow for the MemEventListener to start after the BPF files are
loaded, removing the need to stall during boot-up until they are loaded
in the device.

Test: Verified memevent listener initialized post-boot
Test: Verified LMKD no longer stalls until BPF progs are loaded
Bug: 331008250
Bug: 244232958
Change-Id: I55f97b41349ea7693cff81b1170d33712b820292
Signed-off-by: Carlos Galo <carlosgalo@google.com>
 2024-04-02 22:25:36 +00:00
Carlos Galo 963fdf1dc0 lmkd: Introduce kill strategy based on direct reclaim length am: 81a7c21087 am: ed5f6f9c6b 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2959942

Change-Id: I01ab5f59c7e32d5ff944bcc5111c0e4e4bdd9cf7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2024-03-26 20:47:54 +00:00
Carlos Galo ed5f6f9c6b lmkd: Introduce kill strategy based on direct reclaim length am: 81a7c21087 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2959942

Change-Id: Ic643aaf44e45f21b941deeebdcf674c2591e88c2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2024-03-26 20:33:12 +00:00
Carlos Galo 81a7c21087 lmkd: Introduce kill strategy based on direct reclaim length 
Add kill reason for when the device is stuck in direct reclaim for
longer than the configurable threshold. Only allow configurable
threshold, and direct reclaim stuck detection, if memevents direct
reclaim monitoring is enabled.

Test: Verified direct reclaim stuck kill log with memory pressure test
Test: m
Bug: 244232958
Change-Id: I1156899874d2eb7e0f4b61597741087c110b3414
Signed-off-by: Carlos Galo <carlosgalo@google.com>
 2024-03-22 16:21:30 -07:00
Carlos Galo 02f2386694 Adding direct reclaim state monitoring am: 9e136285a6 am: 696456889a 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/3001286

Change-Id: I9213f66c6289856f4f0da5b0971813b0680979d1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2024-03-21 06:35:38 +00:00
Carlos Galo 696456889a Adding direct reclaim state monitoring am: 9e136285a6 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/3001286

Change-Id: Ifcf98d8422445dab92b1e24be004056e6871bcb5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2024-03-21 06:25:30 +00:00
Carlos Galo 9e136285a6 Adding direct reclaim state monitoring 
Replacing mechanism of reading vmstats to detect direct reclaim with
memevents instead. Maintain vmstats mechanism if bpf ring buffer is not
supported by current kernel.

Test: Verified lmkd receives direct reclaim state changes
Test: m
Bug: 244232958
Change-Id: I59ee7657da1240355d611dfa129c4d50bed2c330
Signed-off-by: Carlos Galo <carlosgalo@google.com>
 2024-03-20 06:46:04 +00:00
Aditya Choudhary b749603ac4 Migrate Test Targets to New Android Ownership Model 
This CL is created as a best effort to migrate test targets to the new Android ownership model.
It is based on historical data from repository history and insights from git blame.
Given the nature of this effort, there may be instances of incorrect attribution. If you find incorrect or unnecessary
attribution in this CL, please create a new CL to fix that.

For detailed guidelines and further information on the migration please refer to the link below,
go/new-android-ownership-model

Bug: 304529413
Test: N/A
Change-Id: I6f597ed681e95367a641a69ff2ec4b69c5087f18
 2024-02-02 13:59:15 +00:00
Suren Baghdasaryan f8bae6fed3 [automerger skipped] lmkd: Kill cached apps when thrashing or below low watermark am: d1968032a2 -s ours am: 3fff5c5850 -s ours 
am skip reason: Merged-In I356eac1fe6d44dad292a7ea2fadee69a5be61479 with SHA-1 0ac96fcb1a is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/24948168

Change-Id: Ia2bd9c7e9d32405ef7bce6ede4d6a6f4169ff269
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2023-12-19 04:40:53 +00:00
Suren Baghdasaryan 3fff5c5850 [automerger skipped] lmkd: Kill cached apps when thrashing or below low watermark am: d1968032a2 -s ours 
am skip reason: Merged-In I356eac1fe6d44dad292a7ea2fadee69a5be61479 with SHA-1 0ac96fcb1a is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/24948168

Change-Id: I541d20e637cb1b9bd242c029dd31b8f18677e3e4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2023-12-19 04:10:13 +00:00
Suren Baghdasaryan d1968032a2 lmkd: Kill cached apps when thrashing or below low watermark 
With Android U removing AMS kills, lmkd has additional duty to kill
cached apps which previously were killed by AMS. The former logic is
not proactive enough and leads to too many cached apps contributing
to memory pressure.
Implement additional logic to kill cached apps (excluding previous
foreground apps) when low watermark is breached or when device is
thrashing.

Bug: 300660611
Change-Id: I356eac1fe6d44dad292a7ea2fadee69a5be61479
Merged-In: I356eac1fe6d44dad292a7ea2fadee69a5be61479
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
 2023-12-18 10:28:54 +00:00
Matt Stephenson d537478999 add min score option to PRESSURE_AFTER_KILL am: 18578a55d0 am: 3fe819c85f am: 9ae8f1fd20 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2868426

Change-Id: I4872f7576447a460737107e9cebf5c131dff4a40
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2023-12-12 02:07:48 +00:00
Matt Stephenson 9ae8f1fd20 add min score option to PRESSURE_AFTER_KILL am: 18578a55d0 am: 3fe819c85f 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2868426

Change-Id: I843f99dc21bc34e719a979b2b616a54ab6dba1c6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2023-12-12 01:35:21 +00:00
Matt Stephenson 3fe819c85f add min score option to PRESSURE_AFTER_KILL am: 18578a55d0 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2868426

Change-Id: I4784e9fd8ebec9c72ceb7d642ca5aba0ff16dc5b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2023-12-12 01:03:37 +00:00
Matt Stephenson 18578a55d0 add min score option to PRESSURE_AFTER_KILL 
Adjust lmk cycle after kill to honor an optional min score.

Test: cycle after kill under mem pressure honors specified score
Bug: 309380316
Change-Id: I9ab8e29b58846cc291acb2834638ddf7a7759eca
Signed-off-by: Matt Stephenson <stephensonmatt@google.com>
 2023-12-11 22:35:50 +00:00
T.J. Mercier 057fa9419e Merge "Use correct language for cgroups" into main am: e2288909ab am: 6ed1a5b77e am: aa660a7aad 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2808358

Change-Id: I0ee2d3ba73414e85c4107ca50ed6d9b146d44848
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2023-11-06 23:23:24 +00:00
T.J. Mercier 092c1d13b1 Merge "Use correct language for cgroups" into main am: e2288909ab am: 5789f8506a am: 29def1fcfc 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2808358

Change-Id: I3e35a799bcb46c8398e3dc5f79373bb910baa4b5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2023-11-06 23:22:20 +00:00
T.J. Mercier aa660a7aad Merge "Use correct language for cgroups" into main am: e2288909ab am: 6ed1a5b77e 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2808358

Change-Id: Ie20d35e98c403e914dcdbfeeb0cd754c1731fef9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2023-11-06 22:42:11 +00:00
T.J. Mercier 29def1fcfc Merge "Use correct language for cgroups" into main am: e2288909ab am: 5789f8506a 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2808358

Change-Id: I5a05c37886cab740ce76cdbf15433a3cd2d8f908
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2023-11-06 22:39:05 +00:00
T.J. Mercier 6ed1a5b77e Merge "Use correct language for cgroups" into main am: e2288909ab 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2808358

Change-Id: I9508fa6a0eef439cab54667a10be5bed3e52ee2a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2023-11-06 22:11:32 +00:00
T.J. Mercier 5789f8506a Merge "Use correct language for cgroups" into main am: e2288909ab 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2808358

Change-Id: I00fe3cb6598194a1e4f546ff8d9438a1b4c9e017
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2023-11-06 22:09:36 +00:00
T.J. Mercier e2288909ab Merge "Use correct language for cgroups" into main 2023-11-06 21:44:18 +00:00
Suren Baghdasaryan 54b91ae428 lmkd: Add new low memory kill reason am: 9e4d3ad1a2 am: 5cb0c07d1e am: 12d1316648 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2813556

Change-Id: I7bc7a519102183a9f6c42a283d51c3e059e62824
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2023-11-02 19:28:21 +00:00
Suren Baghdasaryan 18c28de8ca lmkd: Add new low memory kill reason am: 9e4d3ad1a2 am: 1e5e5f617b am: fcc43fc968 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2813556

Change-Id: I9eb8fd7ce4604276394fb7cf4e93ad5e1688e40e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2023-11-02 19:27:04 +00:00
Suren Baghdasaryan 12d1316648 lmkd: Add new low memory kill reason am: 9e4d3ad1a2 am: 5cb0c07d1e 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2813556

Change-Id: Id1382b754dbb20e6d9b6a2192942ad0a1af92801
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2023-11-02 18:17:38 +00:00
Suren Baghdasaryan fcc43fc968 lmkd: Add new low memory kill reason am: 9e4d3ad1a2 am: 1e5e5f617b 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2813556

Change-Id: Ibfb69e8edd45bea720487af21eddf626b054e069
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2023-11-02 18:15:03 +00:00
Suren Baghdasaryan 5cb0c07d1e lmkd: Add new low memory kill reason am: 9e4d3ad1a2 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2813556

Change-Id: Ia3f72cbd94fdaf0daa1f4d0d274224ba5b0f38b2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2023-11-02 17:48:20 +00:00
Suren Baghdasaryan 1e5e5f617b lmkd: Add new low memory kill reason am: 9e4d3ad1a2 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2813556

Change-Id: Id975b5fbe66fea3f37c9a7551c021449d152d6b2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2023-11-02 17:46:47 +00:00
Suren Baghdasaryan 9e4d3ad1a2 lmkd: Add new low memory kill reason 
Add kill reason for a cached app kill when free memory is under low
watermark.

Bug: 306755741
Change-Id: Idf92da326f6e0990e6d9fd9acdd21b19f6bdd241
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
 2023-10-31 13:02:55 -07:00
T.J. Mercier c2b250bb7e Use correct language for cgroups 
Refer to cgroups and the cgroup hierarchy by their correct names.

Bug: 301871933
Change-Id: Ibe65900812e1de3b60f5b7104ae2c9a02a3f8a8c
 2023-10-27 18:12:06 +00:00
Suren Baghdasaryan 4ca00fe122 lmkd: Kill cached apps when thrashing or below low watermark am: 0ac96fcb1a am: 525a34e894 am: cef23553e6 am: 2522d30cf5 am: e08a4be700 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2781208

Change-Id: I0b7461f412ad69016378f0d49f273204ef967fe3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2023-10-12 00:19:57 +00:00
Suren Baghdasaryan e08a4be700 lmkd: Kill cached apps when thrashing or below low watermark am: 0ac96fcb1a am: 525a34e894 am: cef23553e6 am: 2522d30cf5 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2781208

Change-Id: I79518516d625a075eec7cf94066b8134c4755b9f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2023-10-11 23:31:52 +00:00
Suren Baghdasaryan 2522d30cf5 lmkd: Kill cached apps when thrashing or below low watermark am: 0ac96fcb1a am: 525a34e894 am: cef23553e6 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2781208

Change-Id: Ida941b9333d3775bb09cfe8aed6298c7d0df4dff
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2023-10-11 22:46:34 +00:00
Suren Baghdasaryan cef23553e6 lmkd: Kill cached apps when thrashing or below low watermark am: 0ac96fcb1a am: 525a34e894 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2781208

Change-Id: I25639c76530340e7f7f3f1153ea818622dfb330e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2023-10-11 22:13:05 +00:00