commit ecbfa8618ee0a2090d51a4c994b9340e5955d9ae
author Daeho Jeong <daehojeong@google.com> Wed May 04 16:31:24 2022 +0000
committer Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> Wed May 04 16:31:24 2022 +0000
tree 6205d66c2e3dee997e80aa72aa88c14386063080
parent b9d00c445b5fd129114eebbad45d0d7343aaecef
parent bc752d279f65b11b3159f949db90f6a0210e581d

Merge "init.rc: increase readahead window multiplier for POSIX_FADV_SEQUENTIAL files" into tm-dev am: bc752d279f

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/core/+/18124890

Change-Id: Ief7ea0473d998e8ce302dafd802d1e4a99ec9098
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

rootdir/init.rc

diff --git a/rootdir/init.rc b/rootdir/init.rc
index 15b6c4d..0bd0e1d 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -1099,6 +1099,9 @@
     write /dev/sys/fs/by-name/userdata/gc_urgent_sleep_time 50
     write /dev/sys/fs/by-name/userdata/iostat_enable 1
 
+    # set readahead multiplier for POSIX_FADV_SEQUENTIAL files
+    write /dev/sys/fs/by-name/userdata/seq_file_ra_mul 16
+
     # limit discard size to 128MB in order to avoid long IO latency
     # for filesystem tuning first (dm or sda)
     # this requires enabling selinux entry for sda/mmcblk0 in vendor side