shamu: defconfig: set default readahead to 2048KB

Android has been benefiting quicker boot from bigger readahead during boottime than runtime. However, the boottime readahead setting is set when init is established after treble early mount. This patch will make readahead bigger by default so early boot can benefit from it. Readahead will be reset by init on boot_complete. Bug: 62413151 Test: boot walleye 100ms faster Change-Id: Ic9dad5666ce3d4836d73afbcee04cfb875f64f5d Signed-off-by: Wei Wang <[email protected]> Signed-off-by: Elektroschmock <[email protected]>
franciscofranco · Jan 8, 2019 · a332904 · a332904
1 parent a714de1
commit a332904
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/arch/arm/configs/shamu_defconfig b/arch/arm/configs/shamu_defconfig
@@ -585,6 +585,7 @@ CONFIG_ENABLE_VMALLOC_SAVING=y
 CONFIG_FORCE_MAX_ZONEORDER=11
 CONFIG_ALIGNMENT_TRAP=y
 # CONFIG_UACCESS_WITH_MEMCPY is not set
+CONFIG_VM_MAX_READAHEAD=2048
 CONFIG_SECCOMP=y
 CONFIG_CC_STACKPROTECTOR=y
 # CONFIG_XEN is not set