Buildresult: npiggin/ppc64e_defconfig/powerpc-gcc4.9 built on Jul 9 2020, 23:40

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Status:	OK
Date/Time:	Jul 9 2020, 23:40
Duration:	0:02:00.345465
Builder:	ka1
Revision:	lazy tlb: shoot lazies, a non-refcounting lazy tlb option (`de8a34242c88473ee615f66a7ded095f094e708e)`
Target:	npiggin/ppc64e_defconfig/powerpc-gcc4.9
Branch:	npiggin
Compiler:	powerpc-gcc4.9 (powerpc64-linux-gcc (GCC) 4.9.4 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:	ppc64e_defconfig (download)
Log:	Download original No warnings found in log. Full Log # git rev-parse -q --verify de8a34242c88473ee615f66a7ded095f094e708e^{commit} de8a34242c88473ee615f66a7ded095f094e708e already have revision, skipping fetch # git checkout -q -f -B kisskb de8a34242c88473ee615f66a7ded095f094e708e # git clean -qxdf # < git log -1 # commit de8a34242c88473ee615f66a7ded095f094e708e # Author: Nicholas Piggin <npiggin@gmail.com> # Date: Thu Jul 9 17:07:59 2020 +1000 # # lazy tlb: shoot lazies, a non-refcounting lazy tlb option # # On big systems, the mm refcount can become highly contented when doing # a lot of context switching with threaded applications (particularly # switching between the idle thread and an application thread). # # Abandoning lazy tlb slows switching down quite a bit in the important # user->idle->user cases, so so instead implement a non-refcounted scheme # that causes __mmdrop() to IPI all CPUs in the mm_cpumask and shoot down # any remaining lazy ones. # # On a 16-socket 192-core POWER8 system, a context switching benchmark # with as many software threads as CPUs (so each switch will go in and # out of idle), upstream can achieve a rate of about 1 million context # switches per second. After this patch it goes up to 118 million. # # Signed-off-by: Nicholas Piggin <npiggin@gmail.com> # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 de8a34242c88473ee615f66a7ded095f094e708e # < make -s -j 48 ARCH=powerpc O=/kisskb/build/npiggin_ppc64e_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- ppc64e_defconfig # < make -s -j 48 ARCH=powerpc O=/kisskb/build/npiggin_ppc64e_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 48 ARCH=powerpc O=/kisskb/build/npiggin_ppc64e_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 48 ARCH=powerpc O=/kisskb/build/npiggin_ppc64e_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- INFO: Uncompressed kernel (size 0xc351d0) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) Image Name: Linux-5.8.0-rc3-gde8a34242c88 Created: Thu Jul 9 23:42:07 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5105342 Bytes = 4985.69 KiB = 4.87 MiB Load Address: 00000000 Entry Point: 00000000 Completed OK # rm -rf /kisskb/build/npiggin_ppc64e_defconfig_powerpc-gcc4.9 # Build took: 0:02:00.345465

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