Messages in this thread | | | Date | Wed, 13 Nov 2019 16:30:32 -0800 | Subject | [PATCH v3 00/10] Optimize cgroup context switch | From | Ian Rogers <> |
| |
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.
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 | 134 +++++++++ include/linux/perf_event.h | 14 + kernel/events/core.c | 512 ++++++++++++++++++++++++++++------- lib/Kconfig.debug | 10 + lib/Makefile | 1 + lib/test_min_max_heap.c | 194 +++++++++++++ 6 files changed, 769 insertions(+), 96 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
| |