Messages in this thread | | | From | Frederic Weisbecker <> | Subject | [PATCH 0/6] cputime: Fixes and cleanups on steal time accounting | Date | Thu, 6 Mar 2014 18:56:35 +0100 |
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Hi,
The main purpose of this set is to fix a bug on full dynticks configs where steal time accounting appears to be zero in /proc/stat even after a few seconds of competing guests running busy loops in a same host CPU. It's not a regression though as it was there since the beginning with full dynticks.
So patch [4/6] is the most important. The rest is preparatory work to fix the bug and various cleanups.
Thanks.
--- git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git timers/cputime-fix-steal
Frederic Weisbecker (6): cputime: Fix nsecs_to_cputime() return type cast cputime: Default implementation of nsecs -> cputime conversion cputime: Bring cputime -> nsecs conversion cputime: Fix jiffies based cputime assumption on steal accounting sched: Remove needless round trip nsecs <-> tick conversion of steal time arch: Remove stub cputime.h headers
arch/alpha/include/asm/Kbuild | 1 + arch/alpha/include/asm/cputime.h | 6 ------ arch/cris/include/asm/Kbuild | 1 + arch/cris/include/asm/cputime.h | 6 ------ arch/frv/include/asm/Kbuild | 1 + arch/frv/include/asm/cputime.h | 6 ------ arch/m32r/include/asm/Kbuild | 1 + arch/m32r/include/asm/cputime.h | 6 ------ arch/microblaze/include/asm/Kbuild | 1 + arch/microblaze/include/asm/cputime.h | 1 - arch/mn10300/include/asm/Kbuild | 1 + arch/mn10300/include/asm/cputime.h | 1 - arch/score/include/asm/Kbuild | 2 +- arch/score/include/asm/cputime.h | 6 ------ arch/x86/include/asm/Kbuild | 1 + arch/x86/include/asm/cputime.h | 1 - drivers/cpufreq/cpufreq_stats.c | 2 +- drivers/s390/cio/cio.c | 2 +- fs/proc/stat.c | 2 +- fs/proc/uptime.c | 2 +- include/asm-generic/cputime_jiffies.h | 4 +++- include/asm-generic/cputime_nsecs.h | 5 ++++- include/linux/cputime.h | 16 ++++++++++++++++ include/linux/kernel_stat.h | 2 +- include/linux/sched.h | 2 +- kernel/sched/core.c | 6 ------ kernel/sched/cputime.c | 11 ++++++----- kernel/sched/sched.h | 10 ---------- 28 files changed, 43 insertions(+), 63 deletions(-) delete mode 100644 arch/alpha/include/asm/cputime.h delete mode 100644 arch/cris/include/asm/cputime.h delete mode 100644 arch/frv/include/asm/cputime.h delete mode 100644 arch/m32r/include/asm/cputime.h delete mode 100644 arch/microblaze/include/asm/cputime.h delete mode 100644 arch/mn10300/include/asm/cputime.h delete mode 100644 arch/score/include/asm/cputime.h delete mode 100644 arch/x86/include/asm/cputime.h create mode 100644 include/linux/cputime.h
-- 1.8.3.1
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