|From:||Glauber Costa <firstname.lastname@example.org>|
|Subject:||[PATCH v2 00/14] per-cgroup /proc/stat|
|Date:||Tue, 1 Nov 2011 19:19:06 -0200|
|Cc:||email@example.com, firstname.lastname@example.org, email@example.com, firstname.lastname@example.org, email@example.com, firstname.lastname@example.org, email@example.com|
Hi, This is a new shot of the per-cgroup /proc/stat series. I believe this series is a huge improvement over the last one. Basically, there is a control file in the root cgroup that controls wether or not statistics will be collected in a per-cgroup fashion. Only when this is on, a jump label is enabled allowing the "run to parent" to happen. The parent cgroup's kstat is coincident with the system-wide kstat, so we don't need special code for when cgroups-disabled, either runtime or compile time. cpuusage and cpuacct statistics are now also available in the cpu cgroup. Since the task_group structure is already walked by the scheduler anyway, by keeping everything in the same cgroup, we avoid multiple walks. I also have a follow up patch that displays the information in this file automatically in /proc/stat when requested, but I am not including in this series. I'd like to give some second thoughts about that: Since I am pretty stubborn, I haven't yet given up on coming up with a way to tie namespaces and cgroups together in a good fashion for theses cases. Glauber Costa (14): trivial: initialize root cgroup's sibling list Change cpustat fields to an array. Move /proc/stat logic inside sched.c split kernel stat in two Display /proc/stat information per cgroup Make total_forks per-cgroup per-cgroup boot time Report steal time for cgroup Keep nr_iowait per cgroup Keep number of context switches per-cgroup provide a version of cpuacct statistics inside cpu cgroup Keep number of running processes per-cgroup provide a version of cpuusage statistics inside cpu cgroup Change CPUACCT to default n Documentation/feature-removal-schedule.txt | 8 + arch/s390/appldata/appldata_os.c | 18 +- arch/x86/include/asm/i387.h | 2 +- drivers/cpufreq/cpufreq_conservative.c | 33 +- drivers/cpufreq/cpufreq_ondemand.c | 33 +- drivers/macintosh/rack-meter.c | 8 +- fs/proc/stat.c | 144 +------ fs/proc/uptime.c | 8 +- include/linux/kernel_stat.h | 56 ++- include/linux/sched.h | 5 + init/Kconfig | 1 + kernel/fork.c | 7 +- kernel/sched.c | 660 +++++++++++++++++++++++++--- kernel/sched_debug.c | 3 +- kernel/sched_fair.c | 10 + kernel/sched_rt.c | 4 + 16 files changed, 731 insertions(+), 269 deletions(-) -- 18.104.22.168 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to firstname.lastname@example.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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