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@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
Ian Rogers <irogers@google.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Nick Terrell <terrelln@fb.com>,
Kan Liang <kan.liang@linux.intel.com>,
Andi Kleen <ak@linux.intel.com>,
Kajol Jain <kjain@linux.ibm.com>,
Athira Rajeev <atrajeev@linux.vnet.ibm.com>,
Huacai Chen <chenhuacai@kernel.org>,
Masami Hiramatsu <mhiramat@kernel.org>,
"Steinar H. Gunderson" <sesse@google.com>,
Liam Howlett <liam.howlett@oracle.com>,
Miguel Ojeda <ojeda@kernel.org>,
Colin Ian King <colin.i.king@gmail.com>,
Dmitrii Dolgov <9erthalion6@gmail.com>,
Yang Jihong <yangjihong1@huawei.com>,
Ming Wang <wangming01@loongson.cn>,
James Clark <james.clark@arm.com>,
K Prateek Nayak <kprateek.nayak@amd.com>,
Sean Christopherson <seanjc@google.com>,
Leo Yan <leo.yan@linaro.org>,
Ravi Bangoria <ravi.bangoria@amd.com>,
German Gomez <german.gomez@arm.com>,
Changbin Du <changbin.du@huawei.com>,
Paolo Bonzini <pbonzini@redhat.com>, Li Dong <lidong@vivo.com>,
Sandipan Das <sandipan.das@amd.com>,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
Guilherme Amadio <amadio@gentoo.org>
Subject: [PATCH v8 00/25] maps/threads/dsos memory improvements and fixes
Date: Thu, 1 Feb 2024 22:15:07 -0800 [thread overview]
Message-ID: <20240202061532.1939474-1-irogers@google.com> (raw)
Modify the implementation of maps to not use an rbtree as the
container for maps, instead use a sorted array. Improve locking and
reference counting issues.
Similar to maps separate out and reimplement threads to use a hashmap
for lower memory consumption and faster look up. The fixes a
regression in memory usage where reference count checking switched to
using non-invasive tree nodes. Reduce its default size by 32 times
and improve locking discipline. Also, fix regressions where tids had
become unordered to make `perf report --tasks` and
`perf trace --summary` output easier to read.
Better encapsulate the dsos abstraction. Remove the linked list and
rbtree used for faster iteration and log(n) lookup to a sorted array
for similar performance but half the memory usage per dso. Improve
reference counting and locking discipline, adding reference count
checking to dso.
v8:
- in "perf maps: Switch from rbtree to lazily sorted array for
addresses" use accessors and remove some duplicative invariant checks as
requested by Namhyung.
v7:
- rebase to latest perf-tools-next where 22 patches were applied by Arnaldo.
- resolve merge conflicts, in particular with fc044c53b99f ("perf
annotate-data: Add dso->data_types tree") that required more dso
accessor functions.
v6 series is here:
https://lore.kernel.org/lkml/20231207011722.1220634-1-irogers@google.com/
Ian Rogers (25):
perf maps: Switch from rbtree to lazily sorted array for addresses
perf maps: Get map before returning in maps__find
perf maps: Get map before returning in maps__find_by_name
perf maps: Get map before returning in maps__find_next_entry
perf maps: Hide maps internals
perf maps: Locking tidy up of nr_maps
perf dso: Reorder variables to save space in struct dso
perf report: Sort child tasks by tid
perf trace: Ignore thread hashing in summary
perf machine: Move fprintf to for_each loop and a callback
perf threads: Move threads to its own files
perf threads: Switch from rbtree to hashmap
perf threads: Reduce table size from 256 to 8
perf dsos: Attempt to better abstract dsos internals
perf dsos: Tidy reference counting and locking
perf dsos: Add dsos__for_each_dso
perf dso: Move dso functions out of dsos
perf dsos: Switch more loops to dsos__for_each_dso
perf dsos: Switch backing storage to array from rbtree/list
perf dsos: Remove __dsos__addnew
perf dsos: Remove __dsos__findnew_link_by_longname_id
perf dsos: Switch hand code to bsearch
perf dso: Add reference count checking and accessor functions
perf dso: Reference counting related fixes
perf dso: Use container_of to avoid a pointer in dso_data
tools/perf/arch/x86/tests/dwarf-unwind.c | 1 +
tools/perf/builtin-annotate.c | 8 +-
tools/perf/builtin-buildid-cache.c | 2 +-
tools/perf/builtin-buildid-list.c | 18 +-
tools/perf/builtin-inject.c | 96 +-
tools/perf/builtin-kallsyms.c | 2 +-
tools/perf/builtin-mem.c | 4 +-
tools/perf/builtin-record.c | 2 +-
tools/perf/builtin-report.c | 209 +--
tools/perf/builtin-script.c | 8 +-
tools/perf/builtin-top.c | 4 +-
tools/perf/builtin-trace.c | 43 +-
tools/perf/tests/code-reading.c | 8 +-
tools/perf/tests/dso-data.c | 67 +-
tools/perf/tests/hists_common.c | 6 +-
tools/perf/tests/hists_cumulate.c | 4 +-
tools/perf/tests/hists_output.c | 2 +-
tools/perf/tests/maps.c | 7 +-
tools/perf/tests/symbols.c | 2 +-
tools/perf/tests/thread-maps-share.c | 8 +-
tools/perf/tests/vmlinux-kallsyms.c | 16 +-
tools/perf/ui/browsers/annotate.c | 6 +-
tools/perf/ui/browsers/hists.c | 8 +-
tools/perf/ui/browsers/map.c | 4 +-
tools/perf/util/Build | 1 +
tools/perf/util/annotate-data.c | 6 +-
tools/perf/util/annotate.c | 45 +-
tools/perf/util/auxtrace.c | 2 +-
tools/perf/util/block-info.c | 2 +-
tools/perf/util/bpf-event.c | 9 +-
tools/perf/util/bpf_lock_contention.c | 8 +-
tools/perf/util/build-id.c | 136 +-
tools/perf/util/build-id.h | 2 -
tools/perf/util/callchain.c | 4 +-
tools/perf/util/data-convert-json.c | 2 +-
tools/perf/util/db-export.c | 6 +-
tools/perf/util/dlfilter.c | 12 +-
tools/perf/util/dso.c | 469 +++---
tools/perf/util/dso.h | 549 ++++++-
tools/perf/util/dsos.c | 529 ++++---
tools/perf/util/dsos.h | 40 +-
tools/perf/util/event.c | 12 +-
tools/perf/util/header.c | 8 +-
tools/perf/util/hist.c | 4 +-
tools/perf/util/intel-pt.c | 22 +-
tools/perf/util/machine.c | 570 +++-----
tools/perf/util/machine.h | 32 +-
tools/perf/util/map.c | 73 +-
tools/perf/util/maps.c | 1298 +++++++++++------
tools/perf/util/maps.h | 65 +-
tools/perf/util/probe-event.c | 26 +-
tools/perf/util/rb_resort.h | 5 -
.../util/scripting-engines/trace-event-perl.c | 6 +-
.../scripting-engines/trace-event-python.c | 21 +-
tools/perf/util/session.c | 21 +
tools/perf/util/session.h | 2 +
tools/perf/util/sort.c | 19 +-
tools/perf/util/srcline.c | 65 +-
tools/perf/util/symbol-elf.c | 132 +-
tools/perf/util/symbol.c | 217 +--
tools/perf/util/symbol_fprintf.c | 4 +-
tools/perf/util/synthetic-events.c | 24 +-
tools/perf/util/thread.c | 8 +-
tools/perf/util/thread.h | 6 -
tools/perf/util/threads.c | 186 +++
tools/perf/util/threads.h | 35 +
tools/perf/util/unwind-libunwind-local.c | 20 +-
tools/perf/util/unwind-libunwind.c | 9 +-
tools/perf/util/vdso.c | 56 +-
69 files changed, 3143 insertions(+), 2160 deletions(-)
create mode 100644 tools/perf/util/threads.c
create mode 100644 tools/perf/util/threads.h
--
2.43.0.594.gd9cf4e227d-goog
next reply other threads:[~2024-02-02 6:15 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-02 6:15 Ian Rogers [this message]
2024-02-02 6:15 ` [PATCH v8 01/25] perf maps: Switch from rbtree to lazily sorted array for addresses Ian Rogers
2024-02-02 6:15 ` [PATCH v8 02/25] perf maps: Get map before returning in maps__find Ian Rogers
2024-02-02 6:15 ` [PATCH v8 03/25] perf maps: Get map before returning in maps__find_by_name Ian Rogers
2024-02-02 6:15 ` [PATCH v8 04/25] perf maps: Get map before returning in maps__find_next_entry Ian Rogers
2024-02-02 6:15 ` [PATCH v8 05/25] perf maps: Hide maps internals Ian Rogers
2024-02-02 6:15 ` [PATCH v8 06/25] perf maps: Locking tidy up of nr_maps Ian Rogers
2024-02-02 6:15 ` [PATCH v8 07/25] perf dso: Reorder variables to save space in struct dso Ian Rogers
2024-02-02 6:15 ` [PATCH v8 08/25] perf report: Sort child tasks by tid Ian Rogers
2024-02-02 6:15 ` [PATCH v8 09/25] perf trace: Ignore thread hashing in summary Ian Rogers
2024-02-02 6:15 ` [PATCH v8 10/25] perf machine: Move fprintf to for_each loop and a callback Ian Rogers
2024-02-02 6:15 ` [PATCH v8 11/25] perf threads: Move threads to its own files Ian Rogers
2024-02-02 6:15 ` [PATCH v8 12/25] perf threads: Switch from rbtree to hashmap Ian Rogers
2024-02-02 6:15 ` [PATCH v8 13/25] perf threads: Reduce table size from 256 to 8 Ian Rogers
2024-02-02 6:15 ` [PATCH v8 14/25] perf dsos: Attempt to better abstract dsos internals Ian Rogers
2024-02-02 6:15 ` [PATCH v8 15/25] perf dsos: Tidy reference counting and locking Ian Rogers
2024-02-02 6:15 ` [PATCH v8 16/25] perf dsos: Add dsos__for_each_dso Ian Rogers
2024-02-02 6:15 ` [PATCH v8 17/25] perf dso: Move dso functions out of dsos Ian Rogers
2024-02-02 6:15 ` [PATCH v8 18/25] perf dsos: Switch more loops to dsos__for_each_dso Ian Rogers
2024-02-02 6:15 ` [PATCH v8 19/25] perf dsos: Switch backing storage to array from rbtree/list Ian Rogers
2024-02-02 6:15 ` [PATCH v8 20/25] perf dsos: Remove __dsos__addnew Ian Rogers
2024-02-02 6:15 ` [PATCH v8 21/25] perf dsos: Remove __dsos__findnew_link_by_longname_id Ian Rogers
2024-02-02 6:15 ` [PATCH v8 22/25] perf dsos: Switch hand code to bsearch Ian Rogers
2024-02-02 6:15 ` [PATCH v8 23/25] perf dso: Add reference count checking and accessor functions Ian Rogers
2024-02-02 6:15 ` [PATCH v8 24/25] perf dso: Reference counting related fixes Ian Rogers
2024-02-02 6:15 ` [PATCH v8 25/25] perf dso: Use container_of to avoid a pointer in dso_data Ian Rogers
2024-02-06 1:13 ` [PATCH v8 00/25] maps/threads/dsos memory improvements and fixes Namhyung Kim
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