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| author | Jaegeuk Kim <jaegeuk@google.com> | 2019-11-27 15:42:10 -0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@google.com> | 2020-01-23 19:39:52 +0000 |
| commit | 9e09cbceb016e7646b15b29f17c905b14a9fbab3 (patch) | |
| tree | 5c28cb84965d9c10f79ae4f19a71f17453265556 /rootdir | |
| parent | 81303e4c8f3889857925d4253a8a134d088a13a0 (diff) | |
| download | system_core-9e09cbceb016e7646b15b29f17c905b14a9fbab3.tar.gz system_core-9e09cbceb016e7646b15b29f17c905b14a9fbab3.tar.bz2 system_core-9e09cbceb016e7646b15b29f17c905b14a9fbab3.zip | |
rootdir: init.rc to limit discard size to 128MB
In any case, UFS storage suffers from long discard latency.
Bug: 148209614
Change-Id: Iaa8ef6eb862934af43254bd10873a12c3d34e926
Merged-In: Iaa8ef6eb862934af43254bd10873a12c3d34e926
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
Diffstat (limited to 'rootdir')
| -rw-r--r-- | rootdir/init.rc | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/rootdir/init.rc b/rootdir/init.rc index 0fa9febdd..e898d4dc9 100644 --- a/rootdir/init.rc +++ b/rootdir/init.rc @@ -682,6 +682,11 @@ on boot write /sys/fs/f2fs/${dev.mnt.blk.data}/cp_interval 200 write /sys/fs/f2fs/${dev.mnt.blk.data}/gc_urgent_sleep_time 50 + # limit discard size to 128MB in order to avoid long IO latency + # for filesystem tuning first (dm or sda) + # Note that, if dm-<num> is used, sda/mmcblk0 should be tuned in vendor/init.rc + write /sys/devices/virtual/block/${dev.mnt.blk.data}/queue/discard_max_bytes 134217728 + # Permissions for System Server and daemons. chown radio system /sys/android_power/state chown radio system /sys/android_power/request_state |