From: Ian Rogers <irogers@google.com>
To: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Masahiro Yamada <yamada.masahiro@socionext.com>,
Kees Cook <keescook@chromium.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Petr Mladek <pmladek@suse.com>,
Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
Qian Cai <cai@lca.pw>, Joe Lawrence <joe.lawrence@redhat.com>,
Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
"Uladzislau Rezki (Sony)" <urezki@gmail.com>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Ard Biesheuvel <ardb@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Kent Overstreet <kent.overstreet@gmail.com>,
Gary Hook <Gary.Hook@amd.com>, Arnd Bergmann <arnd@arndb.de>,
Kan Liang <kan.liang@linux.intel.com>,
linux-kernel@vger.kernel.org
Cc: Stephane Eranian <eranian@google.com>,
Andi Kleen <ak@linux.intel.com>, Ian Rogers <irogers@google.com>
Subject: [PATCH v4 00/10] Optimize cgroup context switch
Date: Fri, 15 Nov 2019 17:18:35 -0800 [thread overview]
Message-ID: <20191116011845.177150-1-irogers@google.com> (raw)
In-Reply-To: <20191114003042.85252-1-irogers@google.com>
Avoid iterating over all per-CPU events during cgroup changing context
switches by organizing events by cgroup.
To make an efficient set of iterators, introduce a min max heap
utility with test.
The v4 patch set addresses review comments on the v3 patch set by
Peter Zijlstra.
These patches include a caching algorithm to improve the search for
the first event in a group by Kan Liang <kan.liang@linux.intel.com> as
well as rebasing hit "optimize event_filter_match during sched_in"
from https://lkml.org/lkml/2019/8/7/771.
The v2 patch set was modified by Peter Zijlstra in his perf/cgroup
branch:
https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
These patches follow Peter's reorganization and his fixes to the
perf_cpu_context min_heap storage code.
Ian Rogers (8):
lib: introduce generic min max heap
perf: Use min_max_heap in visit_groups_merge
perf: Add per perf_cpu_context min_heap storage
perf/cgroup: Grow per perf_cpu_context heap storage
perf/cgroup: Order events in RB tree by cgroup id
perf: simplify and rename visit_groups_merge
perf: cache perf_event_groups_first for cgroups
perf: optimize event_filter_match during sched_in
Kan Liang (1):
perf/cgroup: Do not switch system-wide events in cgroup switch
Peter Zijlstra (1):
perf/cgroup: Reorder perf_cgroup_connect()
include/linux/min_max_heap.h | 133 +++++++++
include/linux/perf_event.h | 15 +
kernel/events/core.c | 543 +++++++++++++++++++++++++++--------
lib/Kconfig.debug | 10 +
lib/Makefile | 1 +
lib/test_min_max_heap.c | 194 +++++++++++++
6 files changed, 782 insertions(+), 114 deletions(-)
create mode 100644 include/linux/min_max_heap.h
create mode 100644 lib/test_min_max_heap.c
--
2.24.0.432.g9d3f5f5b63-goog
next prev parent reply other threads:[~2019-11-16 1:18 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-14 0:30 [PATCH v3 00/10] Optimize cgroup context switch Ian Rogers
2019-11-14 0:30 ` [PATCH v3 01/10] perf/cgroup: Reorder perf_cgroup_connect() Ian Rogers
2019-11-14 8:50 ` Peter Zijlstra
2019-11-14 0:30 ` [PATCH v3 02/10] lib: introduce generic min max heap Ian Rogers
2019-11-14 9:32 ` Peter Zijlstra
2019-11-14 9:35 ` Peter Zijlstra
2019-11-17 18:28 ` Joe Perches
2019-11-18 8:40 ` Peter Zijlstra
2019-11-18 11:50 ` Joe Perches
2019-11-18 12:21 ` Peter Zijlstra
2019-11-14 0:30 ` [PATCH v3 03/10] perf: Use min_max_heap in visit_groups_merge Ian Rogers
2019-11-14 9:39 ` Peter Zijlstra
2019-11-14 0:30 ` [PATCH v3 04/10] perf: Add per perf_cpu_context min_heap storage Ian Rogers
2019-11-14 9:51 ` Peter Zijlstra
2019-11-16 1:19 ` Ian Rogers
2019-11-14 0:30 ` [PATCH v3 05/10] perf/cgroup: Grow per perf_cpu_context heap storage Ian Rogers
2019-11-14 9:54 ` Peter Zijlstra
2019-11-14 0:30 ` [PATCH v3 06/10] perf/cgroup: Order events in RB tree by cgroup id Ian Rogers
2019-11-14 0:30 ` [PATCH v3 07/10] perf: simplify and rename visit_groups_merge Ian Rogers
2019-11-14 10:03 ` Peter Zijlstra
2019-11-16 1:20 ` Ian Rogers
2019-11-14 0:30 ` [PATCH v3 08/10] perf: cache perf_event_groups_first for cgroups Ian Rogers
2019-11-14 10:25 ` Peter Zijlstra
2019-11-16 1:20 ` Ian Rogers
2019-11-18 8:37 ` Peter Zijlstra
2019-11-14 0:30 ` [PATCH v3 09/10] perf: optimize event_filter_match during sched_in Ian Rogers
2019-11-14 0:30 ` [PATCH v3 10/10] perf/cgroup: Do not switch system-wide events in cgroup switch Ian Rogers
2019-11-14 10:43 ` Peter Zijlstra
2019-11-14 13:46 ` Liang, Kan
2019-11-14 13:57 ` Peter Zijlstra
2019-11-14 15:16 ` Liang, Kan
2019-11-14 15:24 ` Liang, Kan
2019-11-14 20:49 ` Liang, Kan
2019-11-14 0:42 ` [PATCH v3 00/10] Optimize cgroup context switch Ian Rogers
2019-11-14 10:45 ` Peter Zijlstra
2019-11-14 18:17 ` Ian Rogers
2019-12-06 23:16 ` Ian Rogers
2019-11-16 1:18 ` Ian Rogers [this message]
2019-11-16 1:18 ` [PATCH v4 01/10] perf/cgroup: Reorder perf_cgroup_connect() Ian Rogers
2019-11-16 1:18 ` [PATCH v4 02/10] lib: introduce generic min max heap Ian Rogers
2019-11-21 11:11 ` Joe Perches
2019-11-16 1:18 ` [PATCH v4 03/10] perf: Use min_max_heap in visit_groups_merge Ian Rogers
2019-11-16 1:18 ` [PATCH v4 04/10] perf: Add per perf_cpu_context min_heap storage Ian Rogers
2019-11-16 1:18 ` [PATCH v4 05/10] perf/cgroup: Grow per perf_cpu_context heap storage Ian Rogers
2019-11-16 1:18 ` [PATCH v4 06/10] perf/cgroup: Order events in RB tree by cgroup id Ian Rogers
2019-11-16 1:18 ` [PATCH v4 07/10] perf: simplify and rename visit_groups_merge Ian Rogers
2019-11-16 1:18 ` [PATCH v4 08/10] perf: cache perf_event_groups_first for cgroups Ian Rogers
2019-11-16 1:18 ` [PATCH v4 09/10] perf: optimize event_filter_match during sched_in Ian Rogers
2019-11-16 1:18 ` [PATCH v4 10/10] perf/cgroup: Do not switch system-wide events in cgroup switch Ian Rogers
2019-12-06 23:15 ` [PATCH v5 00/10] Optimize cgroup context switch Ian Rogers
2019-12-06 23:15 ` [PATCH v5 01/10] perf/cgroup: Reorder perf_cgroup_connect() Ian Rogers
2019-12-06 23:15 ` [PATCH v5 02/10] lib: introduce generic min-heap Ian Rogers
2019-12-06 23:15 ` [PATCH v5 03/10] perf: Use min_max_heap in visit_groups_merge Ian Rogers
2019-12-08 7:10 ` kbuild test robot
2019-12-06 23:15 ` [PATCH v5 04/10] perf: Add per perf_cpu_context min_heap storage Ian Rogers
2019-12-06 23:15 ` [PATCH v5 05/10] perf/cgroup: Grow per perf_cpu_context heap storage Ian Rogers
2019-12-06 23:15 ` [PATCH v5 06/10] perf/cgroup: Order events in RB tree by cgroup id Ian Rogers
2019-12-06 23:15 ` [PATCH v5 07/10] perf: simplify and rename visit_groups_merge Ian Rogers
2019-12-06 23:15 ` [PATCH v5 08/10] perf: cache perf_event_groups_first for cgroups Ian Rogers
2019-12-06 23:15 ` [PATCH v5 09/10] perf: optimize event_filter_match during sched_in Ian Rogers
2019-12-06 23:15 ` [PATCH v5 10/10] perf/cgroup: Do not switch system-wide events in cgroup switch Ian Rogers
2020-02-14 7:51 ` [PATCH v6 0/6] Optimize cgroup context switch Ian Rogers
2020-02-14 7:51 ` [PATCH v6 1/6] perf/cgroup: Reorder perf_cgroup_connect() Ian Rogers
2020-02-14 16:11 ` Shuah Khan
2020-02-14 17:37 ` Peter Zijlstra
2020-03-06 14:42 ` [tip: perf/core] " tip-bot2 for Peter Zijlstra
2020-02-14 7:51 ` [PATCH v6 2/6] lib: introduce generic min-heap Ian Rogers
2020-02-14 22:06 ` Randy Dunlap
2020-02-17 16:29 ` Peter Zijlstra
2020-03-06 14:42 ` [tip: perf/core] lib: Introduce " tip-bot2 for Ian Rogers
2020-02-14 7:51 ` [PATCH v6 3/6] perf: Use min_heap in visit_groups_merge Ian Rogers
2020-02-17 17:23 ` Peter Zijlstra
2020-03-06 14:42 ` [tip: perf/core] perf/core: Use min_heap in visit_groups_merge() tip-bot2 for Ian Rogers
2020-02-14 7:51 ` [PATCH v6 4/6] perf: Add per perf_cpu_context min_heap storage Ian Rogers
2020-03-06 14:42 ` [tip: perf/core] perf/core: " tip-bot2 for Ian Rogers
2020-02-14 7:51 ` [PATCH v6 5/6] perf/cgroup: Grow per perf_cpu_context heap storage Ian Rogers
2020-03-06 14:42 ` [tip: perf/core] " tip-bot2 for Ian Rogers
2020-02-14 7:51 ` [PATCH v6 6/6] perf/cgroup: Order events in RB tree by cgroup id Ian Rogers
2020-02-14 19:32 ` [PATCH v6 0/6] Optimize cgroup context switch Ian Rogers
2020-02-17 16:18 ` Peter Zijlstra
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