No description
642048d969
Android uses an out-of-tree /proc/sys/vm/extra_free_kbytes kernel knob
to increase low watermark. A similar /proc/sys/vm/watermark_scale_factor
knob supported in upstream kernel can be used for the same purpose.
The script implements conversion from desired extra_free_kbytes value
to watermark_scale_factor value and sets watermark_scale_factor according
to the value for extra_free_kbytes provided as a parameter.
Note that watermark_scale_factor affects high watermark differently
from extra_free_kbytes. While extra_free_kbytes increases low and high
watermarks by the same amount, watermark_scale_factor affects high
watermark 2x times. Therefore it is expected that replacing the usage
extra_free_kbytes with watermark_scale_factor will keep the same low
watermark but high watermark will be higher than before.
Usage:
extra_free_kbytes.sh <extra_free_kbytes value>
Bug: 109664768
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: Id8949be731da77be884cdeec3a765ea291dbc2f0
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| bootstat | ||
| cli-test | ||
| code_coverage | ||
| debuggerd | ||
| diagnose_usb | ||
| fastboot | ||
| fs_mgr | ||
| gatekeeperd | ||
| healthd | ||
| include | ||
| init | ||
| janitors | ||
| libappfuse | ||
| libasyncio | ||
| libbinderwrapper | ||
| libcrypto_utils | ||
| libcutils | ||
| libdiskconfig | ||
| libgrallocusage | ||
| libkeyutils | ||
| libmodprobe | ||
| libnetutils | ||
| libpackagelistparser | ||
| libprocessgroup | ||
| libqtaguid | ||
| libsparse | ||
| libstats | ||
| libsuspend | ||
| libsync | ||
| libsystem | ||
| libsysutils | ||
| libusbhost | ||
| libutils | ||
| libvndksupport | ||
| llkd | ||
| mini_keyctl | ||
| mkbootfs | ||
| property_service | ||
| reboot | ||
| rootdir | ||
| run-as | ||
| sdcard | ||
| set-verity-state | ||
| shell_and_utilities | ||
| storaged | ||
| toolbox | ||
| trusty | ||
| usbd | ||
| watchdogd | ||
| .clang-format | ||
| .clang-format-2 | ||
| .clang-format-4 | ||
| .gitignore | ||
| CleanSpec.mk | ||
| METADATA | ||
| MODULE_LICENSE_APACHE2 | ||
| OWNERS | ||
| PREUPLOAD.cfg | ||
| TEST_MAPPING | ||