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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
..
Build.txt perf build: Add build documentation 2015-02-12 17:53:00 -03:00
Makefile perf Documentation: Fix out-of-tree asciidoctor man page generation 2018-09-18 10:17:16 -03:00
android.txt perf tools: Update android build documentation 2016-07-04 20:27:27 -03:00
asciidoc.conf
…
asciidoctor-extensions.rb perf Documentation: Support for asciidoctor 2018-04-26 13:47:10 -03:00
build-xed.txt perf script: Add --insn-trace for instruction decoding 2018-10-24 15:29:50 -03:00
callchain-overhead-calculation.txt perf tools: Document --children option in more detail 2015-04-29 10:38:06 -03:00
examples.txt perf record: Remove -f/--force option 2013-07-08 17:37:25 -03:00
intel-bts.txt perf tools: Add Intel BTS support 2015-08-21 11:34:10 -03:00
intel-pt.txt perf scripts python: call-graph-from-sql.py: Rename to exported-sql-viewer.py 2018-10-23 14:26:44 -03:00
itrace.txt perf script: Make itrace script default to all calls 2018-10-24 15:29:54 -03:00
jit-interface.txt perf symbols: Add description of JIT interface 2012-08-13 14:55:02 -03:00
jitdump-specification.txt perf jit: Add jitdump format specification document 2016-10-24 11:07:41 -03:00
manpage-1.72.xsl
…
manpage-base.xsl
…
manpage-bold-literal.xsl
…
manpage-normal.xsl
…
manpage-suppress-sp.xsl
…
perf-annotate.txt perf annotate: Add --percent-type option 2018-08-08 15:55:53 -03:00
perf-archive.txt perf archive: Remove duplicated 'runs' in man page 2013-12-09 15:21:45 -03:00
perf-bench.txt perf bench: Add epoll_ctl(2) benchmark 2018-11-21 22:39:55 -03:00
perf-buildid-cache.txt perf buildid-cache: Support --purge-all option 2018-04-26 09:30:26 -03:00
perf-buildid-list.txt perf report: Accept fifos as input file 2011-12-23 17:01:03 -02:00
perf-c2c.txt perf c2c record: Record physical addresses in samples 2018-03-16 13:52:57 -03:00
perf-config.txt perf annotate: Allow setting the offset level in .perfconfig 2018-04-13 10:00:05 -03:00
perf-data.txt perf tools: Correct title markers for asciidoctor 2018-03-07 10:26:32 -03:00
perf-diff.txt perf diff: Add -q/--quiet option 2017-02-20 11:47:08 -03:00
perf-evlist.txt perf evlist: Document missing --force option 2017-11-16 14:50:07 -03:00
perf-ftrace.txt perf tools: Correct title markers for asciidoctor 2018-03-07 10:26:32 -03:00
perf-help.txt
…
perf-inject.txt perf inject: Document missing options 2017-11-16 14:50:05 -03:00
perf-kallsyms.txt perf tools: Correct title markers for asciidoctor 2018-03-07 10:26:32 -03:00
perf-kmem.txt perf kmem: Document a missing option & an argument 2018-02-16 14:55:42 -03:00
perf-kvm.txt perf tools: Configurable per thread proc map processing time out 2015-06-19 18:27:13 -03:00
perf-list.txt perf record: Support weak groups 2018-11-05 14:37:10 -03:00
perf-lock.txt perf lock: Document missing options 2017-11-16 14:50:04 -03:00
perf-mem.txt perf mem: Document incorrect and missing options 2018-04-23 11:59:18 -03:00
perf-probe.txt perf probe: Support escaped character in parser 2017-12-27 12:15:55 -03:00
perf-record.txt perf record: Enable asynchronous trace writing 2018-12-17 14:55:08 -03:00
perf-report.txt perf report: Add --percent-type option 2018-08-08 15:55:54 -03:00
perf-sched.txt perf sched: Fix documentation for timehist 2018-04-12 10:33:36 -03:00
perf-script-perl.txt perf tools: Correct title markers for asciidoctor 2018-03-07 10:26:32 -03:00
perf-script-python.txt perf script python: Add dict fields introduction to Documentation 2018-06-06 15:40:10 -03:00
perf-script.txt perf script: Implement --graph-function 2018-10-24 15:29:55 -03:00
perf-stat.txt perf stat: Add --interval-clear option 2018-06-07 15:53:36 -03:00
perf-test.txt perf test: Add -F/--dont-fork option 2016-06-30 18:27:45 -03:00
perf-timechart.txt perf timechart: Document missing --force option 2017-11-16 14:50:06 -03:00
perf-top.txt perf top: Allow passing a kallsyms file 2018-12-17 14:54:40 -03:00
perf-trace.txt perf trace: Introduce per-event maximum number of events property 2018-10-22 14:27:12 -03:00
perf-version.txt perf version: Add man page 2018-04-02 13:52:23 -03:00
perf.data-file-format.txt perf tools: Fix perf.data format description of NRCPUS header 2018-05-30 15:40:26 -03:00
perf.txt perf tools: Handle -h and -v options 2015-10-05 16:36:18 -03:00
perfconfig.example perf config: Show default report configuration in example and docs 2016-09-01 09:44:13 -03:00
tips.txt perf c2c: Add a tip about cacheline events 2017-12-05 15:43:55 -03:00