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Boottime: remove all block-related tunes including readahead size

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With a request size fix, 2MB-sized readahead would not be a way to gain
boottime.

taimen - PVT - Hynix 128GB - boot_complete timestamp (avg of 100 loop)
Base [1]      : 10.943
New  [2]      : 10.7495

taimen - PVT - Hynix 128GB - boot_complete timestamp + fastboot -w (avg of 100 loop)
Base [1]      : 32.5857
New  [2]      : 31.7474

[1] w/o this CL, revert commit 7c37954411e9 ("mm: readahead back to 128KB")
[2] w/  this CL, keep commit 7c37954411e9 ("mm: readahead back to 128KB")

Bug: 122246531
Bug: 120757803
Change-Id: I2c3236b0b0cd4f2a8610a1af64de694f8a4d7997
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
This commit is contained in:
Jaegeuk Kim
2019-01-08 11:01:01 -08:00
parent 8a9343109c
commit 08e352d88b
1 changed files with 0 additions and 18 deletions
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18
init-common.rc
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@@ -1,21 +1,3 @@
on late-fs
# boot time fs tune
write /sys/block/sda/queue/iostats 0
write /sys/block/sda/queue/scheduler cfq
write /sys/block/sda/queue/iosched/slice_idle 0
write /sys/block/sda/queue/read_ahead_kb 2048
write /sys/block/sda/queue/nr_requests 256
write /sys/block/dm-0/queue/read_ahead_kb 2048
write /sys/block/dm-1/queue/read_ahead_kb 2048
on property:sys.boot_completed=1
# end boot time fs tune
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/dm-0/queue/read_ahead_kb 128
write /sys/block/dm-1/queue/read_ahead_kb 128
on property:sys.boot_completed=1 && property:ro.build.type=user
write /proc/sys/kernel/modules_disabled 1