kernel_optimize_test/kernel/cgroup
Johannes Weiner 2ce7135adc psi: cgroup support
On a system that executes multiple cgrouped jobs and independent
workloads, we don't just care about the health of the overall system, but
also that of individual jobs, so that we can ensure individual job health,
fairness between jobs, or prioritize some jobs over others.

This patch implements pressure stall tracking for cgroups.  In kernels
with CONFIG_PSI=y, cgroup2 groups will have cpu.pressure, memory.pressure,
and io.pressure files that track aggregate pressure stall times for only
the tasks inside the cgroup.

Link: http://lkml.kernel.org/r/20180828172258.3185-10-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Daniel Drake <drake@endlessm.com>
Tested-by: Suren Baghdasaryan <surenb@google.com>
Cc: Christopher Lameter <cl@linux.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Johannes Weiner <jweiner@fb.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Enderborg <peter.enderborg@sony.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Vinayak Menon <vinmenon@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-26 16:26:32 -07:00
..
cgroup-internal.h cgroup/tracing: Move taking of spin lock out of trace event handlers 2018-07-11 10:48:47 -07:00
cgroup-v1.c cgroup/tracing: Move taking of spin lock out of trace event handlers 2018-07-11 10:48:47 -07:00
cgroup.c psi: cgroup support 2018-10-26 16:26:32 -07:00
cpuset.c docs: Fix some broken references 2018-06-15 18:10:01 -03:00
debug.c debug cgroup: use task_css_set instead of rcu_dereference 2017-11-27 11:37:33 -08:00
freezer.c cgroup: add @flags to css_task_iter_start() and implement CSS_TASK_ITER_PROCS 2017-07-21 11:14:51 -04:00
Makefile cgroup: Rename kernel/cgroup/stat.c to kernel/cgroup/rstat.c 2018-04-26 14:29:04 -07:00
namespace.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pids.c cgroup: implement cgroup v2 thread support 2017-07-21 11:14:51 -04:00
rdma.c rdmacg: Convert to use match_string() helper 2018-05-07 09:27:26 -07:00
rstat.c cgroup: Make cgroup_rstat_updated() ready for root cgroup usage 2018-04-26 14:29:06 -07:00