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Groups > linux.kernel > #1348820
| From | Li Zhang <zhlcindy@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH RFC 2/2] powerpc/mm: Enable page parallel initialisation |
| Date | 2016-03-03 08:10 +0100 |
| Message-ID | <r8vyx-3xp-1@gated-at.bofh.it> (permalink) |
| References | <r8vyx-3xp-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Li Zhang <zhlcindy@linux.vnet.ibm.com> Parallel initialisation has been enabled for X86, boot time is improved greatly. On Power8, for small memory, it is improved greatly. Here is the result from my test on Power8 platform: For 4GB memory: 57% is improved For 50GB memory: 22% is improve Signed-off-by: Li Zhang <zhlcindy@linux.vnet.ibm.com> --- arch/powerpc/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index e4824fd..83073c2 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -158,6 +158,7 @@ config PPC select ARCH_HAS_DEVMEM_IS_ALLOWED select HAVE_ARCH_SECCOMP_FILTER select ARCH_HAS_UBSAN_SANITIZE_ALL + select ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT config GENERIC_CSUM def_bool CPU_LITTLE_ENDIAN -- 2.1.0
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[PATCH RFC 2/2] powerpc/mm: Enable page parallel initialisation Li Zhang <zhlcindy@gmail.com> - 2016-03-03 08:10 +0100 Re: [PATCH RFC 2/2] powerpc/mm: Enable page parallel initialisation Mel Gorman <mgorman@techsingularity.net> - 2016-03-03 09:40 +0100
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