diff options
| author | Tao Huang <huangtao@rock-chips.com> | 2018-04-16 19:40:13 +0800 |
|---|---|---|
| committer | Tao Huang <huangtao@rock-chips.com> | 2018-04-16 20:05:40 +0800 |
| commit | 5f0f7744d2d240755937936b407da163ab6a4128 (patch) | |
| tree | 724c74afb6b4e42c2ae5e08f6643815eff7ffb21 /arch | |
| parent | 588c1da03831c3d341395ea29eaf74d537ee1c97 (diff) | |
arm64: rk3308_linux_defconfig: disable SPARSEMEM_VMEMMAP
Save about 15MB memory for 64MB device, 8MB for 512MB.
For 64MB device,
before:
Memory: 37984K/63488K available (5182K kernel code, 366K rwdata,
1740K rodata, 256K init, 521K bss, 25504K reserved, 0K cma-reserved)
after:
Memory: 53348K/63488K available (5182K kernel code, 366K rwdata,
1740K rodata, 256K init, 521K bss, 10140K reserved, 0K cma-reserved)
For 512MB device,
before:
Memory: 495992K/522240K available (5182K kernel code, 366K rwdata,
1740K rodata, 256K init, 521K bss, 26248K reserved, 0K cma-reserved)
after:
Memory: 504188K/522240K available (5182K kernel code, 366K rwdata,
1740K rodata, 256K init, 521K bss, 18052K reserved, 0K cma-reserved)
Change-Id: Ica3431aff50a52e3d66d9e203f2313fcfdca068b
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/configs/rk3308_linux_defconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/configs/rk3308_linux_defconfig b/arch/arm64/configs/rk3308_linux_defconfig index 295f2d96a8cf..a1a2b5f5e219 100644 --- a/arch/arm64/configs/rk3308_linux_defconfig +++ b/arch/arm64/configs/rk3308_linux_defconfig @@ -33,6 +33,7 @@ CONFIG_SCHED_MC=y CONFIG_NR_CPUS=4 CONFIG_PREEMPT=y CONFIG_HZ_1000=y +# CONFIG_SPARSEMEM_VMEMMAP is not set # CONFIG_COMPACTION is not set CONFIG_DEFAULT_MMAP_MIN_ADDR=32768 # CONFIG_UNMAP_KERNEL_AT_EL0 is not set |