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OpenCloudOS-Kernel/tools/perf
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Kan Liang 930e6fcd2b perf tools: Add time out to force stop proc map processing 
System wide sampling like 'perf top' or 'perf record -a' read all
threads /proc/xxx/maps before sampling. If there are any threads which
generating a keeping growing huge maps, perf will do infinite loop
during synthesizing. Nothing will be sampled.

This patch fixes this issue by adding per-thread timeout to force stop
this kind of endless proc map processing.

PERF_RECORD_MISC_PROC_MAP_PARSE_TIME_OUT is introduced to indicate that
the mmap record are truncated by time out. User will get warning
notification when truncated mmap records are detected.

Reported-by: Ying Huang <ying.huang@intel.com>
Signed-off-by: Kan Liang <kan.liang@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ying Huang <ying.huang@intel.com>
Link: http://lkml.kernel.org/r/1434549071-25611-1-git-send-email-kan.liang@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 		2015-06-19 18:20:15 -03:00
..
Documentation perf record: Amend option summaries 2015-06-10 12:00:27 -03:00
arch perf tools: Add ARM64 perf_regs_load to support libunwind and enable testing 2015-05-29 12:43:40 -03:00
bench perf bench numa: Share sched_getcpu() __weak def with cloexec.c 2015-05-18 12:36:46 -03:00
config perf tools: Improve setting of gcc debug option 2015-05-27 12:21:45 -03:00
python perf python: Remove duplicate TID bit from mask 2013-08-07 17:35:25 -03:00
scripts perf build: Add scripts objects building 2015-02-12 11:49:53 -03:00
tests perf tools: Move perf_evsel__(alloc|free|reset)_counts into stat object 2015-06-16 10:34:40 -03:00
ui perf hists browser: React to unassigned hotkey pressing 2015-06-19 18:14:05 -03:00
util perf tools: Add time out to force stop proc map processing 2015-06-19 18:20:15 -03:00
.gitignore perf tools: Ignore .config-detected in .gitignore 2015-06-17 12:44:55 -03:00
Build perf tools: Add new 'perf data' command 2015-02-25 12:42:25 -03:00
CREDITS perf_counter tools: Add CREDITS file for Git contributors 2009-06-24 19:54:29 +02:00
MANIFEST perf tools: Update MANIFEST per files removed from kernel 2015-06-11 22:54:23 -03:00
Makefile perf tools: Use getconf to determine number of online CPUs 2015-05-04 12:43:40 -03:00
Makefile.perf perf tools: Move libtraceevent dynamic list to separated LDFLAGS variable 2015-06-17 16:29:25 -03:00
builtin-annotate.c perf annotate: Display total number of samples with --show-total-period 2015-06-19 16:39:18 -03:00
builtin-bench.c perf bench futex: Support parallel waker threads 2015-05-08 16:23:50 -03:00
builtin-buildid-cache.c perf buildid-cache: Show usage with incorrect params 2015-02-27 15:52:40 -03:00
builtin-buildid-list.c perf tools: Hit all build ids when AUX area tracing 2015-05-04 19:49:42 -03:00
builtin-data.c perf data: Support using -f to override perf.data file ownership for 'convert' 2015-04-02 13:18:52 -03:00
builtin-diff.c perf machine: Protect the machine->threads with a rwlock 2015-05-08 16:19:27 -03:00
builtin-evlist.c perf evlist: Support using -f to override perf.data file ownership 2015-04-02 13:18:45 -03:00
builtin-help.c perf tools: Add the bash completion for listing subsubcommands of perf help 2015-03-19 13:49:39 -03:00
builtin-inject.c perf machine: Protect the machine->threads with a rwlock 2015-05-08 16:19:27 -03:00
builtin-kmem.c perf kmem: Fix compiler warning about may be accessing uninitialized variable 2015-05-29 12:43:40 -03:00
builtin-kvm.c perf machine: Protect the machine->threads with a rwlock 2015-05-08 16:19:27 -03:00
builtin-list.c perf list: Extend raw-dump to certain kind of events 2015-02-27 15:52:24 -03:00
builtin-lock.c perf machine: Protect the machine->threads with a rwlock 2015-05-08 16:19:27 -03:00
builtin-mem.c perf machine: Protect the machine->threads with a rwlock 2015-05-08 16:19:27 -03:00
builtin-probe.c perf probe: Add --range option to show a variable's location range 2015-05-12 09:59:50 -03:00
builtin-record.c perf record: Amend option summaries 2015-06-10 12:00:27 -03:00
builtin-report.c perf tools: Fix build failure on 32-bit arch 2015-06-11 11:14:21 -03:00
builtin-sched.c perf sched: Add option to merge like comms to lat output 2015-05-27 12:21:45 -03:00
builtin-script.c perf machine: Protect the machine->threads with a rwlock 2015-05-08 16:19:27 -03:00
builtin-stat.c perf stat: Introduce perf_counts__(new|delete|reset) functions 2015-06-16 10:34:41 -03:00
builtin-timechart.c perf tools: Elliminate alignment holes 2015-05-18 10:17:33 -03:00
builtin-top.c perf top: Tell the user how to unfreeze events after pressing 'f' 2015-06-19 18:13:59 -03:00
builtin-trace.c trace: Beautify perf_event_open syscall 2015-06-11 22:47:54 -03:00
builtin.h perf tools: Add new 'perf data' command 2015-02-25 12:42:25 -03:00
command-list.txt perf tools: Add new 'perf data' command 2015-02-25 12:42:25 -03:00
design.txt perf tools: Update some code references in design.txt 2014-03-18 18:17:06 -03:00
perf-archive.sh perf archive: Make 'f' the last parameter for tar 2012-09-17 13:10:42 -03:00
perf-completion.sh perf tools: Avoid confusion with preloaded bash function for perf bash completion 2015-03-19 13:53:27 -03:00
perf-read-vdso.c perf tools: Build programs to copy 32-bit compatibility 2014-10-29 10:32:48 -02:00
perf-sys.h perf tools: Move generic barriers out of perf-sys.h 2015-05-08 16:05:08 -03:00
perf-with-kcore.sh perf tools: Add perf-with-kcore script 2014-09-17 17:08:08 -03:00
perf.c perf tools: Fix the bash completion problem of 'perf --*' 2015-02-27 15:52:28 -03:00
perf.h perf tools: Add AUX area tracing Snapshot Mode 2015-05-05 18:13:00 -03:00