pe-devices/device_xiaomi_sm6250-common
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sm6250-common: rootdir: Fine tune the read_ahead size

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sync ag/6911752,ag/9342439
fine tune the read_ahead size for boot time

Bug: 137150088
Bug: 139640385
Bug: 143448664

Test: boot to home and boot time measurement
Change-Id: If7929c51222e325a019532ce0d16045a52778165
Signed-off-by: Kyle Lin <kylelin@google.com>
Signed-off-by: Ocean Chen <oceanchen@google.com>
This commit is contained in:
Kyle Lin 2021-05-05 20:37:31 +02:00 committed by Alexander Winkowski
parent d35ff1caca
commit 743e44b443
No known key found for this signature in database
GPG Key ID: 72762A66704CDE44
2 changed files with 20 additions and 8 deletions
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8
rootdir/etc/init.qcom.rc
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@ -402,11 +402,6 @@ on post-fs-data
mkdir /data/vendor/swap 0770 root system mkdir /data/vendor/swap 0770 root system
chmod 2770 /data/vendor/swap chmod 2770 /data/vendor/swap
# set aggressive read ahead for dm-0 and dm-1 during boot up
write /sys/block/dm-0/queue/read_ahead_kb 2048
write /sys/block/dm-1/queue/read_ahead_kb 2048
write /sys/block/dm-2/queue/read_ahead_kb 2048
# Create vpp directory # Create vpp directory
mkdir /data/vendor/vpp 0770 media media mkdir /data/vendor/vpp 0770 media media
@ -490,9 +485,6 @@ on property:persist.vendor.sys.rawdump_copy=0
on property:sys.boot_completed=1 on property:sys.boot_completed=1
write /dev/kmsg "Boot completed " write /dev/kmsg "Boot completed "
#Reset read ahead for dm-0 and dm-1 to 512kb
write /sys/block/dm-0/queue/read_ahead_kb 512
write /sys/block/dm-1/queue/read_ahead_kb 512
#WDSP FW boot sysfs node used by STHAL #WDSP FW boot sysfs node used by STHAL
chown media audio /sys/kernel/wdsp0/boot chown media audio /sys/kernel/wdsp0/boot
chown media audio /sys/kernel/wcd_cpe0/fw_name chown media audio /sys/kernel/wcd_cpe0/fw_name

20
rootdir/etc/init.target.rc
View File

@ -68,6 +68,17 @@ on init
chown cameraserver cameraserver /dev/cpuset/camera-daemon/tasks chown cameraserver cameraserver /dev/cpuset/camera-daemon/tasks
chmod 0660 /dev/cpuset/camera-daemon/tasks chmod 0660 /dev/cpuset/camera-daemon/tasks
# Boot time fs tuning
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
write /sys/block/dm-2/queue/read_ahead_kb 2048
write /sys/block/dm-3/queue/read_ahead_kb 2048
on early-fs on early-fs
start vold start vold
@ -207,5 +218,14 @@ on property:sys.boot_completed=1
write /dev/stune/top-app/schedtune.prefer_high_cap 0 write /dev/stune/top-app/schedtune.prefer_high_cap 0
write /dev/stune/top-app/schedtune.boost 10 write /dev/stune/top-app/schedtune.boost 10
# Runtime fs tuning
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
write /sys/block/dm-2/queue/read_ahead_kb 128
write /sys/block/dm-3/queue/read_ahead_kb 128
on property:ro.boot.multisim_config=* on property:ro.boot.multisim_config=*
setprop persist.radio.multisim.config ${ro.boot.multisim_config} setprop persist.radio.multisim.config ${ro.boot.multisim_config}