From cb988501de64df621eb5339b13afab292a24e5a9 Mon Sep 17 00:00:00 2001 From: Wei Wang Date: Thu, 26 Jul 2018 13:45:10 -0700 Subject: [PATCH] Set runtime readahead to 128KiB Reduce readahead to 128KiB to reduce thrashing under memory pressure. Bug: 110908295 Bug: 111855179 Test: Boot Change-Id: Id46cf3675d27355e3cb494086d4d06923fe0989d (cherry picked from commit d787af0b2abe54007bc98b539cf1ab2bacd8db13) --- init-taimen.rc | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/init-taimen.rc b/init-taimen.rc index 14c5fc0..e80d49f 100644 --- a/init-taimen.rc +++ b/init-taimen.rc @@ -15,14 +15,14 @@ on late-fs on property:sys.boot_completed=1 # end boot time fs tune - write /sys/block/sda/queue/read_ahead_kb 1024 + write /sys/block/sda/queue/read_ahead_kb 128 write /sys/block/sda/queue/nr_requests 128 write /sys/block/sda/queue/iostats 1 - write /sys/block/sde/queue/read_ahead_kb 1024 + write /sys/block/sde/queue/read_ahead_kb 128 write /sys/block/sde/queue/nr_requests 128 write /sys/block/sde/queue/iostats 1 - write /sys/block/dm-0/queue/read_ahead_kb 512 - write /sys/block/dm-1/queue/read_ahead_kb 512 + write /sys/block/dm-0/queue/read_ahead_kb 128 + write /sys/block/dm-1/queue/read_ahead_kb 128 on boot # Allow ftm4 autotune from adb shell