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2010-05-18perf, x86: P4 PMU -- fix typo in unflagged NMI handlingCyrill Gorcunov
Tested-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Cyrill Gorcunov <gorcunov@gmail.com> LKML-Reference: <1274174954.22793.17.camel@minggr.sh.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-05-18perf, x86: P4 PMU -- handle unflagged eventsCyrill Gorcunov
It might happen that an event can overflow without the proper overflow flag set. Check the sign bit in the raw counter value to solve this problem. Tested-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: fweisbec@gmail.com Cc: Cyrill Gorcunov <gorcunov@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <1274083984.6540.15.camel@minggr.sh.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-05-18perf tui: Fix build problem with slang <= 2.0.6Arnaldo Carvalho de Melo
slang versions <= 2.0.6 have a "#if HAVE_LONG_LONG" that breaks the build if it isn't defined. Use the equivalent one that glibc has on features.h. Reported-by: Steven Rostedt <rostedt@goodmis.org> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-17perf probe: Don't compile CFI related code if elfutils is oldMasami Hiramatsu
Check elfutils version, and if it is old don't compile CFI analysis code. This allows to compile perf with old elfutils. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Tested-by: Stephane Eranian <eranian@google.com> Reported-by: Robert Richter <robert.richter@amd.com> Cc: Ingo Molnar <mingo@elte.hu> LKML-Reference: <20100510171207.26029.97604.stgit@localhost6.localdomain6> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-17perf tools: Add mode to build without newt supportArnaldo Carvalho de Melo
make NO_NEWT=1 Will avoid building the newt (tui) support. Suggested-by: Ingo Molnar <mingo@elte.hu> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-17perf symbols: symbol inconsistency message should be done only at verbose=1Arnaldo Carvalho de Melo
That happened for an old perf.data file that had no fake MMAP events for the kernel modules, but even then it should warn once for each module, not one time for every symbol in every module not found. Reported-by: Ingo Molnar <mingo@elte.hu> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-17perf tui: Add explicit -lslang optionArnaldo Carvalho de Melo
At least on rawhide using -lnewt is not enough if we use SLang routines directly, so add an explicit -lslang since we use SLang routines. Reported-by: Ingo Molnar <mingo@elte.hu> Tested-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-17perf options: Type check all the remaining OPT_ variantsArnaldo Carvalho de Melo
OPT_SET_INT was renamed to OPT_SET_UINT since the only use in these tools is to set something that has an enum type, that is builtin compatible with unsigned int. Several string constifications were done to make OPT_STRING require a const char * type. Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-17perf options: Type check OPT_BOOLEAN and fix the offendersArnaldo Carvalho de Melo
Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-17perf options: Check v type in OPT_U?INTEGERArnaldo Carvalho de Melo
To avoid problems like the one fixed by Stephane Eranian in 3de29ca, now we'll got this instead: bench/sched-messaging.c:259: error: negative width in bit-field ‘<anonymous>’ bench/sched-messaging.c:261: error: negative width in bit-field ‘<anonymous>’ Which is rather cryptic, but is how BUILD_BUG_ON_ZERO works, so kernel hackers should be already used to this. With it in place found some problems, fixed by changing the affected variables to sensible types or changed some OPT_INTEGER to OPT_UINTEGER. Next csets will go thru converting each of the remaining OPT_ so that review can be made easier by grouping changes per type per patch. Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-17perf options: Introduce OPT_UINTEGERArnaldo Carvalho de Melo
For unsigned int options to be parsed, next patches will make use of it. Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-17perf tui: Add workaround for slang < 2.1.4Arnaldo Carvalho de Melo
Older versions of the slang library didn't used the 'const' specifier, causing problems with modern compilers of this kind: util/newt.c:252: error: passing argument 1 of ‘SLsmg_printf’ discards qualifiers from pointer target type Fix it by using some wrappers that when needed const the affected parameters back to plain (char *). Reported-by: Lin Ming <ming.m.lin@intel.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Lin Ming <ming.m.lin@intel.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <20100517145421.GD29052@ghostprotocols.net> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-17perf record: Fix bug mismatch with -c option definitionStephane Eranian
The -c option defines the user requested sampling period. It was implemented using an unsigned int variable but the type of the option was OPT_LONG. Thus, the option parser was overwriting memory belonging to other variables, namely the mmap_pages leading to a zero page sampling buffer. The bug was exposed only when compiling at -O0, probably because the compiler was padding variables at higher optimization levels. This patch fixes this problem by declaring user_interval as u64. This also avoids wrap-around issues for large period on 32-bit systems. Commiter note: Made it use OPT_U64(user_interval) after implementing OPT_U64 in the previous patch. Cc: David S. Miller <davem@davemloft.net> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <4bf11ae9.e88cd80a.06b0.ffffa8e3@mx.google.com> Signed-off-by: Stephane Eranian <eranian@google.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-17perf options: Introduce OPT_U64Arnaldo Carvalho de Melo
We have things like user_interval (-c/--count) in 'perf record' that needs this. Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-16perf tui: Add help window to show key associationsArnaldo Carvalho de Melo
Suggested-by: Ingo Molnar <mingo@elte.hu> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-16perf tui: Make <- exit menus tooArnaldo Carvalho de Melo
In fact it is now added to the hot key list when newt_form__new is used, allowing us to remove the explicit assignment in all its users. The visible change is that <- will exit the menu that pops up when -> is pressed (and Enter when callchains are not being used). Suggested-by: Ingo Molnar <mingo@elte.hu> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-15perf newt: Add single key shortcuts for zoom into DSO and threadsArnaldo Carvalho de Melo
'D'/'d' for zooming into the DSO in the current highlighted hist entry, 'T'/'t' for zooming into the current thread. Suggested-by: Ingo Molnar <mingo@elte.hu> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-15perf newt: Exit browser unconditionally when CTRL+C, q or Q is pressedArnaldo Carvalho de Melo
ESC still asks for confirmation. Suggested-by: Ingo Molnar <mingo@elte.hu> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-15perf newt: Fix the 'A'/'a' shortcut for annotateArnaldo Carvalho de Melo
Reported-by: Ingo Molnar <mingo@elte.hu> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-15perf newt: Make <- exit the ui_browserArnaldo Carvalho de Melo
Right now that means that pressing the left arrow willl make the symbol annotation window to exit back to the main symbol histogram browser. This is another improvement on the UI fastpath, i.e. just the arrows and enter are enough for most browsing. Suggested-by: Ingo Molnar <mingo@elte.hu> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-15Merge branch 'perf' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux-2.6 into perf/core
2010-05-15x86, perf: P4 PMU - fix counters management logicCyrill Gorcunov
Jaswinder reported this #GP: | | Message from syslogd@ht at May 14 09:39:32 ... | kernel:[ 314.908612] EIP: [<c100ccca>] | x86_perf_event_set_period+0x19d/0x1b2 SS:ESP 0068:edac3d70 | Ming has narrowed it down to a comparision issue between arguments with different sizes and signs. As result event index reached a wrong value which in turn led to a GP fault. At the same time it was found that p4_next_cntr has broken logic and should return the counter index only if it was not yet borrowed for another event. Reported-by: Jaswinder Singh Rajput <jaswinderlinux@gmail.com> Reported-by: Lin Ming <ming.m.lin@intel.com> Bisected-by: Lin Ming <ming.m.lin@intel.com> Tested-by: Jaswinder Singh Rajput <jaswinderlinux@gmail.com> Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> CC: Peter Zijlstra <a.p.zijlstra@chello.nl> CC: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <20100514190815.GG13509@lenovo> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-05-14perf newt: Make <- zoom out filtersArnaldo Carvalho de Melo
After we use the filters to zoom into DSOs or threads, we can use <- (left arrow) to zoom out from the last filter applied. It is still possible to zoom out of order by using the popup menu. With this we now have the zoom out operation on the browsing fast path, by allowing fast navigation using just the four arrors and the enter key to expand collapse callchains. Suggested-by: Ingo Molnar <mingo@elte.hu> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-14perf report: Report number of events, not samplesArnaldo Carvalho de Melo
Number of samples is meaningless after we switched to auto-freq, so report the number of events, i.e. not the sum of the different periods, but the number PERF_RECORD_SAMPLE emitted by the kernel. While doing this I noticed that naming "count" to the sum of all the event periods can be confusing, so rename it to .period, just like in struct sample.data, so that we become more consistent. This helps with the next step, that was to record in struct hist_entry the number of sample events for each instance, we need that because we use it to generate the number of events when applying filters to the tree of hist entries like it is being done in the TUI report browser. Suggested-by: Ingo Molnar <mingo@elte.hu> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-14perf hist: Clarify events_stats fields usageArnaldo Carvalho de Melo
The events_stats.total field is too generic, rename it to .total_period, and also add a comment explaining that it is the sum of all the .period fields in samples, that is needed because we use auto-freq to avoid sampling artifacts. Ditto for events_stats.lost, that is the sum of all lost_event.lost fields, i.e. the number of events the kernel dropped. Looking at the users, builtin-sched.c can make use of these fields and stop doing it again. Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-14perf hist: Make event__totals per histsArnaldo Carvalho de Melo
This is one more thing that started global but are more useful per hist or per session. Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-13perf trace scripts: Fix typos in perf-trace-python.txtKirill Smelkov
option option -> option special special -> special Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <1273747165-17242-1-git-send-email-kirr@mns.spb.ru> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-13perf tools: change event inheritance logic in stat and recordStephane Eranian
By default, event inheritance across fork and pthread_create was on but the -i option of stat and record, which enabled inheritance, led to believe it was off by default. This patch fixes this logic by inverting the meaning of the -i option. By default inheritance is on whether you attach to a process (-p), a thread (-t) or start a process. If you pass -i, then you turn off inheritance. Turning off inheritance if you don't need it, helps limit perf resource usage as well. The patch also fixes perf stat -t xxxx and perf record -t xxxx which did not start the counters. Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: David S. Miller <davem@davemloft.net> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <4bea9d2f.d60ce30a.0b5b.08e1@mx.google.com> Signed-off-by: Stephane Eranian <eranian@google.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-13perf hist: Fix missing getline declarationFrederic Weisbecker
hist.c needs to include util.h so that it gets stdio.h inclusion with __GNU_SOURCE defined. Fixes: util/hist.c: In function ‘hist_entry__parse_objdump_line’: util/hist.c:931: erreur: implicit declaration of function ‘getline’ util/hist.c:931: erreur: nested extern declaration of ‘getline’ Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1273772836-11533-1-git-send-regression-fweisbec@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-13perf hist: Fix hists__browse no-newt caseFrederic Weisbecker
Fix mistake in a parameter type of the no-newt hists__browse() version. Fixes: builtin-report.c: In function ‘__cmd_report’: builtin-report.c:314: erreur: incompatible type for argument 1 of ‘hists__browse’ Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1273771378-8577-1-git-send-regression-fweisbec@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-13x86, perf: P4 PMU -- use hash for p4_get_escr_idx()Cyrill Gorcunov
Linear search over all p4 MSRs should be fine if only we would not use it in events scheduling routine which is pretty time critical. Lets use hashes. It should speed scheduling up significantly. v2: Steven proposed to use more gentle approach than issue BUG on error, so we use WARN_ONCE now Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Lin Ming <ming.m.lin@intel.com> LKML-Reference: <20100512174242.GA5190@lenovo> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-05-12Merge branch 'perf' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux-2.6 into perf/core
2010-05-11perf report: Librarize the annotation code and use it in the newt browserArnaldo Carvalho de Melo
Now we don't anymore use popen to run 'perf annotate' for the selected symbol, instead we collect per address samplings when processing samples in 'perf report' if we're using the newt browser, then we use this data directly to do annotation. Done this way we can actually traverse the objdump_line objects directly, matching the addresses to the collected samples and colouring them appropriately using lower level slang routines. The new ui_browser class will be reused for the main, callchain aware, histogram browser, when it will be made generic and don't assume that the objects are always instances of the objdump_line class maintained using list_heads. Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-11perf ui: Add ui_helpline methodsArnaldo Carvalho de Melo
Initially this was just to be able to have a printf like method to prepare the formatted string and then pass to newtPushHelpLine, but as we already have for ui_progress, etc, its a step in identifying a restricted, highlevel set of widgets we can then have implementations for multiple widget sets (GTK, etc). Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-11perf symbols: allow forcing use of cplus_demangleKyle McMartin
For Fedora, I want to force perf to link against libiberty.a for cplus_demangle, rather than libbfd.a for bfd_demangle due to licensing insanity on binutils. (libiberty is LGPL2, libbfd is GPL3.) If we just rely on autodetection, we'll end up with libbfd linked against us, since they're both in binutils-static in the buildroot. Cc: Ingo Molnar <mingo@elte.hu> LKML-Reference: <20100510204335.GA7565@bombadil.infradead.org> Signed-off-by: Kyle McMartin <kyle@redhat.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-11perf probe: Check older elfutils and set NO_DWARFMasami Hiramatsu
Check whether elfutils is older than 0.138 (from which version checking routine has been introduced). And if so, set NO_DWARF because it is hard to check the API dependency without version checking. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Reported-by: Robert Richter <robert.richter@amd.com> Cc: Robert Richter <robert.richter@amd.com> Cc: Ingo Molnar <mingo@elte.hu> LKML-Reference: <20100511045953.9913.19485.stgit@localhost6.localdomain6> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-11perf hist: Adopt filter by dso and by thread methods from the newt browserArnaldo Carvalho de Melo
Those are really not specific to the newt code, can be used by other UI frontends. Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-11perf, powerpc: Implement group scheduling transactional APIsLin Ming
[paulus@samba.org: Set cpuhw->event[i]->hw.config in power_pmu_commit_txn.] Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <20100508102841.GA10650@brick.ozlabs.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-05-11perf: Fix exit() vs event-groupsPeter Zijlstra
Corey reported that the value scale times of group siblings are not updated when the monitored task dies. The problem appears to be that we only update the group leader's time values, fix it by updating the whole group. Reported-by: Corey Ashford <cjashfor@linux.vnet.ibm.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: <stable@kernel.org> # .34.x LKML-Reference: <1273588935.1810.6.camel@laptop> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-05-11perf: Fix exit() vs PERF_FORMAT_GROUPPeter Zijlstra
Both Stephane and Corey reported that PERF_FORMAT_GROUP didn't work as expected if the task the counters were attached to quit before the read() call. The cause is that we unconditionally destroy the grouping when we remove counters from their context. Fix this by splitting off the group destroy from the list removal such that perf_event_remove_from_context() does not do this and change perf_event_release() to do so. Reported-by: Corey Ashford <cjashfor@linux.vnet.ibm.com> Reported-by: Stephane Eranian <eranian@google.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: <stable@kernel.org> # .34.x LKML-Reference: <1273571513.5605.3527.camel@twins> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-05-11Revert "perf: Fix exit() vs PERF_FORMAT_GROUP"Ingo Molnar
This reverts commit 4fd38e4595e2f6c9d27732c042a0e16b2753049c. It causes various crashes and hangs when events are activated. The cause is not fully understood yet but we need to revert it because the effects are severe. Reported-by: Stephane Eranian <eranian@google.com> Reported-by: Lin Ming <ming.m.lin@intel.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-05-10perf/trace/scripting: syscall-counts script cleanupTom Zanussi
A small fix for the syscall counts script: - silence the match output in the shell script Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> LKML-Reference: <1273466820-9330-10-git-send-email-tzanussi@gmail.com> Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-10perf/trace/scripting: syscall-counts-by-pid script cleanupTom Zanussi
A small fix for the syscall counts by pid script: - silence the match output in the shell script Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> LKML-Reference: <1273466820-9330-9-git-send-email-tzanussi@gmail.com> Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-10perf/trace/scripting: failed-syscalls-by-pid script cleanupTom Zanussi
A small fixe for the failed syscalls by pid script: - silence the match output in the shell script Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> LKML-Reference: <1273466820-9330-8-git-send-email-tzanussi@gmail.com> Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-10perf/trace/scripting: don't show script start/stop messages by defaultTom Zanussi
Only print the script start/stop messages in verbose mode - users normally don't care and it just clutters up the output. Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> LKML-Reference: <1273466820-9330-7-git-send-email-tzanussi@gmail.com> Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-10perf/trace/scripting: workqueue-stats script cleanupTom Zanussi
Some minor fixes for the workqueue-stats script: - Fix nuisance 'use of uninitialized value' warnings Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> LKML-Reference: <1273466820-9330-6-git-send-email-tzanussi@gmail.com> Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-10perf/trace/scripting: wakeup-latency script cleanupTom Zanussi
Some minor fixes for the wakeup-latency script: - Fix nuisance 'use of uninitialized value' warnings - Avoid divide-by-zero error Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> LKML-Reference: <1273466820-9330-5-git-send-email-tzanussi@gmail.com> Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-10perf/trace/scripting: rwtop script cleanupTom Zanussi
A couple of fixes for the rwtop script: - printing the totals and clearing the hashes in the signal handler eventually leads to various random and serious problems when running the rwtop script continuously. Moving the print_totals() calls to the event handlers solves that problem, and the event handlers are invoked frequently enough that it doesn't affect the timeliness of the output. - Fix nuisance 'use of uninitialized value' warnings Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Message-Id: <1273466820-9330-4-git-send-email-tzanussi@gmail.com> Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-10perf/trace/scripting: rw-by-pid script cleanupTom Zanussi
Some minor fixes for the rw-by-pid script: - Fix nuisance 'use of uninitialized value' warnings - Change the failed read/write sections to sort by error counts Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> LKML-Reference: <1273466820-9330-3-git-send-email-tzanussi@gmail.com> Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-10perf/trace/scripting: failed-syscalls script cleanupTom Zanussi
A couple small fixes for the failed syscalls script: - The script description says it can be restricted to a specific comm, make it so. - silence the match output in the shell script Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> LKML-Reference: <1273466820-9330-2-git-send-email-tzanussi@gmail.com> Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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