Alexey Budankov d3d1af6f01 perf record: Enable asynchronous trace writing ...

The trace file offset is read once before mmaps iterating loop and
written back after all performance data is enqueued for aio writing.

The trace file offset is incremented linearly after every successful aio
write operation.

record__aio_sync() blocks till completion of the started AIO operation
and then proceeds.

record__aio_mmap_read_sync() implements a barrier for all incomplete
aio write requests.

Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/ce2d45e9-d236-871c-7c8f-1bed2d37e8ac@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

2018-12-17 14:55:08 -03:00

..

arch

perf intel-pt: Fix error with config term "pt=0"

2018-12-17 14:54:51 -03:00

bench

perf bench: Add epoll_ctl(2) benchmark

2018-11-21 22:39:55 -03:00

Documentation

perf record: Enable asynchronous trace writing

2018-12-17 14:55:08 -03:00

examples/bpf

Revert "perf augmented_syscalls: Drop 'write', 'poll' for testing without self pid filter"

2018-11-21 12:00:31 -03:00

include/bpf

perf bpf: Reduce the hardcoded .max_entries for pid_maps

2018-11-21 12:00:32 -03:00

jvmti

perf jvmti: Separate jvmti cmlr check

2018-11-21 22:39:58 -03:00

pmu-events

perf vendor events: Add JSON metrics for Cascadelake server

2018-11-21 22:39:58 -03:00

python

perf python: Make twatch.py work with both python2 and python3

2018-02-19 12:28:08 -03:00

scripts

perf scripts python: exported-sql-viewer.py: Fix table find when table re-ordered

2018-11-05 14:53:00 -03:00

tests

perf test: Fix perf_event_attr test failure

2018-12-17 14:54:32 -03:00

trace

perf tools beauty ioctl: Support new ISO7816 commands

2018-11-19 12:38:50 -08:00

ui

perf annotate: Add support to toggle percent type

2018-08-08 15:55:52 -03:00

util

perf record: Enable asynchronous trace writing

2018-12-17 14:55:08 -03:00

.gitignore

perf tools: Add trace/beauty/generated/ into .gitignore

2018-02-05 13:58:02 -03:00

Build

perf trace: Remove audit-libs dependency if syscall tables are present

2018-01-23 09:51:38 -03:00

builtin-annotate.c

perf tools: Remove perf_tool from event_op2

2018-09-19 10:25:10 -03:00

builtin-bench.c

perf bench: Add epoll_ctl(2) benchmark

2018-11-21 22:39:55 -03:00

builtin-buildid-cache.c

perf buildid-cache: Warn --purge-all failures

2018-05-15 10:32:16 -03:00

builtin-buildid-list.c

Merge branch 'linus' into perf/core, to fix conflicts

2017-11-07 10:30:18 +01:00

builtin-c2c.c

perf c2c report: Fix crash for empty browser

2018-07-31 10:53:20 -03:00

builtin-config.c

Merge branch 'linus' into perf/core, to fix conflicts

2017-11-07 10:30:18 +01:00

builtin-data.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

builtin-diff.c

perf hists: Clarify callchain disabling when available

2018-07-24 14:37:33 -03:00

builtin-evlist.c

Merge branch 'linus' into perf/core, to fix conflicts

2017-11-07 10:30:18 +01:00

builtin-ftrace.c

perf ftrace: Append an EOL when write tracing files

2018-02-19 09:49:12 -03:00

builtin-help.c

perf tools: Rename HAVE_SYSCALL_TABLE to HAVE_SYSCALL_TABLE_SUPPORT

2018-04-12 10:33:31 -03:00

builtin-inject.c

perf tools: Report itrace options in help

2018-09-19 15:06:59 -03:00

builtin-kallsyms.c

perf machine: Ditch find_kernel_function variants

2018-04-30 12:20:54 -03:00

builtin-kmem.c

tools lib traceevent, perf tools: Rename 'enum pevent_flag' to 'enum tep_flag'

2018-08-13 15:22:18 -03:00

builtin-kvm.c

perf tools: Ditch the symbol_conf.nr_events global

2018-06-04 10:28:52 -03:00

builtin-list.c

Merge branch 'linus' into perf/core, to fix conflicts

2017-11-07 10:30:18 +01:00

builtin-lock.c

Merge branch 'linus' into perf/core, to fix conflicts

2017-11-07 10:30:18 +01:00

builtin-mem.c

perf mem: Allow all record/report options

2018-04-18 15:35:48 -03:00

builtin-probe.c

perf tools: No need to check if the argument to __get() function is NULL

2018-06-04 10:28:50 -03:00

builtin-record.c

perf record: Enable asynchronous trace writing

2018-12-17 14:55:08 -03:00

builtin-report.c

Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2018-10-23 13:32:18 +01:00

builtin-sched.c

perf sched: Use sched->show_callchain where appropriate

2018-06-05 10:09:54 -03:00

builtin-script.c

perf script: Use fallbacks for branch stacks

2018-12-17 14:54:18 -03:00

builtin-stat.c

perf evlist: Move perf_evsel__reset_weak_group into evlist

2018-11-05 14:37:09 -03:00

builtin-timechart.c

perf thread: Make thread__find_symbol() return the symbol searched

2018-04-26 13:47:09 -03:00

builtin-top.c

perf top: Allow passing a kallsyms file

2018-12-17 14:54:40 -03:00

builtin-trace.c

perf trace: Fill in BPF "filtered_pids" map when present

2018-11-21 12:00:31 -03:00

builtin-version.c

perf version: Print status for syscall_table

2018-04-12 10:33:34 -03:00

builtin.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

check-headers.sh

tools include uapi: Grab a copy of linux/fs.h

2018-10-30 11:46:22 -03:00

command-list.txt

perf help: Add missing subcommand version

2018-09-19 14:53:36 -03:00

CREDITS

…

design.txt

perf tools: Update some code references in design.txt

2014-03-18 18:17:06 -03:00

Makefile

perf tools: Disable parallelism for 'make clean'

2018-08-20 08:54:58 -03:00

Makefile.config

tools build feature: Check if libaio is available

2018-12-17 14:54:54 -03:00

Makefile.perf

tools build feature: Check if libaio is available

2018-12-17 14:54:54 -03:00

MANIFEST

perf tools: Get all of tools/{arch,include}/ in the MANIFEST

2017-09-25 10:39:43 -03:00

perf-archive.sh

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

perf-completion.sh

perf tools: Auto-complete for events with ':'

2017-12-27 12:16:00 -03:00

perf-read-vdso.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

perf-sys.h

Drop a bunch of metag references

2018-02-23 14:29:59 +00:00

perf-with-kcore.sh

perf tools: Fix perf-with-kcore handling of arguments containing spaces

2015-08-06 16:48:27 -03:00

perf.c

perf tools: Remove dead quote.[ch] code

2018-06-04 10:28:50 -03:00

perf.h

perf record: Enable asynchronous trace writing

2018-12-17 14:55:08 -03:00