- 08 7月, 2010 1 次提交
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由 Frederic Weisbecker 提交于
Hists have their hits increased by the event period. And this period based counting is the foundation of all the stats in perf report. But callchains still use the raw number of hits, without taking the period into account. So when we compute the percentage, absolute based percentages are totally broken, and relative ones too in the first parent level. Because we pass the number of events muliplied by their period as the total number of hits to the callchain filtering, while callchains expect this number to be the number of raw hits. perf report -g graph was simply not working, showing no graph unless the min percent was zero. And even there the percentage of the branches was always 0. And may be fractal filtering was broken on the first branch level too. flat also was broken, but it was hidden because of other breakages. Anyway fix this by counting using periods on callchains. Signed-off-by: NFrederic 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>
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- 24 5月, 2010 1 次提交
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由 Arnaldo Carvalho de Melo 提交于
The hists__tty_browse_tree function was created with the loop to print all events, and its equivalent, hists__tui_browse_tree, was created in a similar fashion, where it is possible to switch among the multiple events, if present, using TAB to go the next event, and shift+TAB (UNTAB) to go to the previous. The report TUI now shows as the window title the name of the event and a leak was fixed wrt pstacks. 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: NArnaldo Carvalho de Melo <acme@redhat.com>
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- 22 5月, 2010 2 次提交
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由 Arnaldo Carvalho de Melo 提交于
When annotating multiple entries, for instance, when running simply as: $ perf annotate the right and left keys, as well as TAB can be used to cycle thru the multiple symbols being annotated. If one doesn't like TUI annotate, disable it by editing ~/.perfconfig and adding: [tui] annotate = off Just like it is possible for report. 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: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
One day we'll have support for the "dump raw trace in ASCII" in the TUI frontend, but till then, use the tty code. Reported-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> 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: NArnaldo Carvalho de Melo <acme@redhat.com>
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- 21 5月, 2010 1 次提交
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由 Arnaldo Carvalho de Melo 提交于
Using the same scheme as for git's/perf's pager setup, i.e. if one doesn't want to, on a newt enabled perf binary, to disable the TUI for 'perf report', its just a matter of doing: [root@doppio linux-2.6-tip]# printf "[tui]\n\nreport = off\n" > /root/.perfconfig [root@doppio linux-2.6-tip]# cat /root/.perfconfig [tui] report = off [root@doppio linux-2.6-tip]# System wide settings are also possible, by editing /etc/perfconfig, etc, i.e. the git machinery for config files applies to perf as well, so when in doubt where to put your settings, consult the git documentation, if it fails, please let us know. Suggested-by: NIngo Molnar <mingo@elte.hu> Discussed-with: Stephane Eranian <eranian@google.com> 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: NArnaldo Carvalho de Melo <acme@redhat.com>
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- 18 5月, 2010 1 次提交
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由 Arnaldo Carvalho de Melo 提交于
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: NArnaldo Carvalho de Melo <acme@redhat.com>
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- 15 5月, 2010 2 次提交
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由 Arnaldo Carvalho de Melo 提交于
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: NIngo 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: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
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: NArnaldo Carvalho de Melo <acme@redhat.com>
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- 14 5月, 2010 1 次提交
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由 Arnaldo Carvalho de Melo 提交于
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: NArnaldo Carvalho de Melo <acme@redhat.com>
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- 12 5月, 2010 1 次提交
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由 Arnaldo Carvalho de Melo 提交于
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: NArnaldo Carvalho de Melo <acme@redhat.com>
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- 11 5月, 2010 3 次提交
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由 Arnaldo Carvalho de Melo 提交于
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: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
Better done when we are adding entries, be it initially of when we're re-sorting the histograms. 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: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
In cbbc79a5 we introduced support for multiple events by introducing a new "event_stat_id" struct and then made several perf_session methods receive a point to it instead of a pointer to perf_session, and kept the event_stats and hists rb_tree in perf_session. While working on the new newt based browser, I realised that it would be better to introduce a new class, "hists" (short for "histograms"), renaming the "event_stat_id" struct and the perf_session methods that were really "hists" methods, as they manipulate only struct hists members, not touching anything in the other perf_session members. Other optimizations, such as calculating the maximum lenght of a symbol name present in an hists instance will be possible as we add them, avoiding a re-traversal just for finding that information. The rationale for the name "hists" to replace "event_stat_id" is that we may have multiple sets of hists for the same event_stat id, as, for instance, the 'perf diff' tool has, so event stat id is not what characterizes what this struct and the functions that manipulate it do. Cc: Eric B Munson <ebmunson@us.ibm.com> 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: NArnaldo Carvalho de Melo <acme@redhat.com>
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- 10 5月, 2010 4 次提交
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由 Arnaldo Carvalho de Melo 提交于
Works by adding a third parameter to the '-g' argument, after the graph type and minimum percentage, for example: [root@doppio linux-2.6-tip]# perf report -g fractal,0.5,2 Will show only the first two symbols where at least 0.5% of the samples took place. All the other symbols that don't fall outside these constraints will be put together in the last entry, prefixed with "[...]" and the total percentage for them. Suggested-by: NArjan van de Ven <arjan@linux.intel.com> Acked-by: NArjan van de Ven <arjan@linux.intel.com> Cc: Arjan van de Ven <arjan@linux.intel.com> 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: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
And with that fix at least one bug: The first hit for an entry, the one that calls malloc to create a new instance in __perf_session__add_hist_entry, wasn't adding the count to the per cpumode (PERF_RECORD_MISC_USER, etc) total variable. 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: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
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: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
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: NArnaldo Carvalho de Melo <acme@redhat.com>
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- 09 5月, 2010 1 次提交
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由 Pekka Enberg 提交于
This patch improves 'perf report -h' output for the '--call-graph' command line option by enumerating the different output types. Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> 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> LKML-Reference: <1273332783-4268-1-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 03 5月, 2010 1 次提交
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由 Tom Zanussi 提交于
Currently, perf 'live mode' writes build-ids at the end of the session, which isn't actually useful for processing live mode events. What would be better would be to have the build-ids sent before any of the samples that reference them, which can be done by processing the event stream and retrieving the build-ids on the first hit. Doing that in perf-record itself, however, is off-limits. This patch introduces perf-inject, which does the same job while leaving perf-record untouched. Normal mode perf still records the build-ids at the end of the session as it should, but for live mode, perf-inject can be injected in between the record and report steps e.g.: perf record -o - ./hackbench 10 | perf inject -v -b | perf report -v -i - perf-inject reads a perf-record event stream and repipes it to stdout. At any point the processing code can inject other events into the event stream - in this case build-ids (-b option) are read and injected as needed into the event stream. Build-ids are just the first user of perf-inject - potentially anything that needs userspace processing to augment the trace stream with additional information could make use of this facility. Cc: Ingo Molnar <mingo@elte.hu> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frédéric Weisbecker <fweisbec@gmail.com> LKML-Reference: <1272696080-16435-3-git-send-email-tzanussi@gmail.com> Signed-off-by: NTom Zanussi <tzanussi@gmail.com> Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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- 28 4月, 2010 2 次提交
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由 Arnaldo Carvalho de Melo 提交于
Now those methods don't operate on a global list of dsos, but on lists of machines, so make this clear by renaming the functions. Cc: Avi Kivity <avi@redhat.com> 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: Zhang, Yanmin <yanmin_zhang@linux.intel.com> LKML-Reference: <new-submission> Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
struct kernel_info and kerninfo__ are too vague, what they really describe are machines, virtual ones or hosts. There are more changes to introduce helpers to shorten function calls and to make more clear what is really being done, but I left that for subsequent patches. Cc: Avi Kivity <avi@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Zhang, Yanmin <yanmin_zhang@linux.intel.com> LKML-Reference: <new-submission> Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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- 19 4月, 2010 1 次提交
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由 Zhang, Yanmin 提交于
Here is the patch of userspace perf tool. Signed-off-by: NZhang Yanmin <yanmin_zhang@linux.intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 14 4月, 2010 6 次提交
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由 Tom Zanussi 提交于
Bypasses the build_id perf header code and replaces it with a synthesized event and processing function that accomplishes the same thing, used when reading/writing perf data to/from a pipe. Signed-off-by: NTom Zanussi <tzanussi@gmail.com> Acked-by: NThomas Gleixner <tglx@linutronix.de> Cc: fweisbec@gmail.com Cc: rostedt@goodmis.org Cc: k-keiichi@bx.jp.nec.com Cc: acme@ghostprotocols.net LKML-Reference: <1270184365-8281-9-git-send-email-tzanussi@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Tom Zanussi 提交于
Bypasses the tracing_data perf header code and replaces it with a synthesized event and processing function that accomplishes the same thing, used when reading/writing perf data to/from a pipe. The tracing data is pretty large, and this patch doesn't attempt to break it down into component events. The tracing_data event itself doesn't actually contain the tracing data, rather it arranges for the event processing code to skip over it after it's read, using the skip return value added to the event processing loop in a previous patch. Signed-off-by: NTom Zanussi <tzanussi@gmail.com> Acked-by: NThomas Gleixner <tglx@linutronix.de> Cc: fweisbec@gmail.com Cc: rostedt@goodmis.org Cc: k-keiichi@bx.jp.nec.com Cc: acme@ghostprotocols.net LKML-Reference: <1270184365-8281-8-git-send-email-tzanussi@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Tom Zanussi 提交于
Bypasses the event type perf header code and replaces it with a synthesized event and processing function that accomplishes the same thing, used when reading/writing perf data to/from a pipe. Signed-off-by: NTom Zanussi <tzanussi@gmail.com> Acked-by: NThomas Gleixner <tglx@linutronix.de> Cc: fweisbec@gmail.com Cc: rostedt@goodmis.org Cc: k-keiichi@bx.jp.nec.com Cc: acme@ghostprotocols.net LKML-Reference: <1270184365-8281-7-git-send-email-tzanussi@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Tom Zanussi 提交于
Bypasses the attr perf header code and replaces it with a synthesized event and processing function that accomplishes the same thing, used when reading/writing perf data to/from a pipe. Making the attrs into events allows them to be streamed over a pipe along with the rest of the header data (in later patches). It also paves the way to allowing events to be added and removed from perf sessions dynamically. Signed-off-by: NTom Zanussi <tzanussi@gmail.com> Acked-by: NThomas Gleixner <tglx@linutronix.de> Cc: fweisbec@gmail.com Cc: rostedt@goodmis.org Cc: k-keiichi@bx.jp.nec.com Cc: acme@ghostprotocols.net LKML-Reference: <1270184365-8281-6-git-send-email-tzanussi@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Tom Zanussi 提交于
Adds special treatment for stdin - if the user specifies '-i -' to perf report, the intent is that the event stream be written to stdin rather than from a disk file. The actual handling of the '-' filename is done by the session; this just adds a signal handler to stop reporting, and turns off interference by the pager. Signed-off-by: NTom Zanussi <tzanussi@gmail.com> Acked-by: NThomas Gleixner <tglx@linutronix.de> Cc: fweisbec@gmail.com Cc: rostedt@goodmis.org Cc: k-keiichi@bx.jp.nec.com Cc: acme@ghostprotocols.net LKML-Reference: <1270184365-8281-4-git-send-email-tzanussi@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ian Munsie 提交于
Parsing an option from the command line with OPT_BOOLEAN on a bool data type would not work on a big-endian machine due to the manner in which the boolean was being cast into an int and incremented. For example, running 'perf probe --list' on a PowerPC machine would fail to properly set the list_events bool and would therefore print out the usage information and terminate. This patch makes OPT_BOOLEAN work as expected with a bool datatype. For cases where the original OPT_BOOLEAN was intentionally being used to increment an int each time it was passed in on the command line, this patch introduces OPT_INCR with the old behaviour of OPT_BOOLEAN (the verbose variable is currently the only such example of this). I have reviewed every use of OPT_BOOLEAN to verify that a true C99 bool was passed. Where integers were used, I verified that they were only being used for boolean logic and changed them to bools to ensure that they would not be mistakenly used as ints. The major exception was the verbose variable which now uses OPT_INCR instead of OPT_BOOLEAN. Signed-off-by: NIan Munsie <imunsie@au.ibm.com> Acked-by: NDavid S. Miller <davem@davemloft.net> Cc: <stable@kernel.org> # NOTE: wont apply to .3[34].x cleanly, please backport Cc: Git development list <git@vger.kernel.org> Cc: Ian Munsie <imunsie@au1.ibm.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Eric B Munson <ebmunson@us.ibm.com> Cc: Valdis.Kletnieks@vt.edu Cc: WANG Cong <amwang@redhat.com> Cc: Thiago Farina <tfransosi@gmail.com> Cc: Masami Hiramatsu <mhiramat@redhat.com> Cc: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Cc: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Mike Galbraith <efault@gmx.de> Cc: Tom Zanussi <tzanussi@gmail.com> Cc: Anton Blanchard <anton@samba.org> Cc: John Kacur <jkacur@redhat.com> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Steven Rostedt <rostedt@goodmis.org> LKML-Reference: <1271147857-11604-1-git-send-email-imunsie@au.ibm.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 03 4月, 2010 6 次提交
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由 Arnaldo Carvalho de Melo 提交于
So that it can use it in the 'perf annotate' command line, otherwise it'll use the default and not the specified -i filename passed to 'perf report'. Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <new-submission> Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
So that we avoid conflict with libc's string.h header. Reviewed-by: NKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Suggested-by: NKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
Propagate error instead. LKML-Reference: <new-submission> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
Return NULL instead and make the caller propagate the error. LKML-Reference: <new-submission> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
The struct callchain_node size is 120 bytes, that are never used when there are no callchains or '-g none' is specified, so conditionally allocate it, reducing sizeof(struct hist_entry) from 210 bytes to only 96, greatly speeding the non-callchain processing. LKML-Reference: <new-submission> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
For when we are processing the events and inserting the entries in the browser. Experimentation here: naming "ui_something" we may be treading into creating a TUI/GUI set of routines that can then be implemented in terms of multiple backends. Also the time it takes for adding things to the "browser" takes, visually (I guess I should do some profiling here ;-) ), more time than for processing the events... That means we probably need to create a custom hist_entry browser, so that we reuse the structures we have in place instead of duplicating them in newt. But progress was made and at least we can see something while long files are being loaded, that must be one of UI 101 bullet points :-) Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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- 26 3月, 2010 1 次提交
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由 Arnaldo Carvalho de Melo 提交于
We need this to know where a symbol in a callchain came from, for various reasons, among them precise annotation from a TUI/GUI tool. Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1269459619-982-5-git-send-email-acme@infradead.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 23 3月, 2010 1 次提交
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由 Frederic Weisbecker 提交于
Callchains have markers inside their capture to tell we enter a context (kernel, user, ...). Those are not displayed in the callchains but they are incidentally an active part of the radix tree where callchains are stored, just like any other address. If we have the two following callchains: addr1 -> addr2 -> user context -> addr3 addr1 -> addr2 -> user context -> addr4 addr1 -> addr2 -> addr 5 This is pretty common if addr1 and addr2 are part of an interrupt path, addr3 and addr4 are user addresses and addr5 is a kernel non interrupt path. This will be stored as follows in the tree: addr1 addr2 / \ / addr5 user context / \ addr3 addr4 But we ignore the context markers in the report, hence the addr3 and addr4 will appear as orphan branches: |--28.30%-- hrtimer_interrupt | smp_apic_timer_interrupt | apic_timer_interrupt | | <------------- here, no parent! | | | | | |--11.11%-- 0x7fae7bccb875 | | | | | |--11.11%-- 0xffffffffff60013b | | | | | |--11.11%-- __pthread_mutex_lock_internal | | | | | |--11.11%-- __errno_location Fix this by removing the context markers when we process the callchains to the tree. Reported-by: NArnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <1269274173-20328-1-git-send-email-acme@infradead.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 12 3月, 2010 1 次提交
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由 Arnaldo Carvalho de Melo 提交于
Newt has widespread availability and provides a rather simple API as can be seen by the size of this patch. The work needed to support it will benefit other frontends too. In this initial patch it just checks if the output is a tty, if not it falls back to the previous behaviour, also if newt-devel/libnewt-dev is not installed the previous behaviour is maintaned. Pressing enter on a symbol will annotate it, ESC in the annotation window will return to the report symbol list. More work will be done to remove the special casing in color_fprintf, stop using fmemopen/FILE in the printing of hist_entries, etc. Also the annotation doesn't need to be done via spawning "perf annotate" and then browsing its output, we can do better by calling directly the builtin-annotate.c functions, that would then be moved to tools/perf/util/annotate.c and shared with perf top, etc But lets go by baby steps, this patch already improves perf usability by allowing to quickly do annotations on symbols from the report screen and provides a first experimentation with libnewt/TUI integration of tools. Tested on RHEL5 and Fedora12 X86_64 and on Debian PARISC64 to browse a perf.data file collected on a Fedora12 x86_64 box. Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com> Cc: Avi Kivity <avi@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1268349164-5822-5-git-send-email-acme@infradead.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 10 3月, 2010 3 次提交
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由 Eric B Munson 提交于
Perf report does not handle multiple events being reported, even though perf record stores them properly on disk. This patch addresses that issue by adding the logic to perf report to use the event stream id that is saved by record and the new data structures to seperate the event streams and report them individually. Signed-off-by: NEric B Munson <ebmunson@us.ibm.com> Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1267804269-22660-6-git-send-email-acme@infradead.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Eric B Munson 提交于
Now that report can store historgrams for multiple events we need to be able to do the post processing work for each histogram. This patch changes the post processing functions so that they can be called individually for each event's histogram. Signed-off-by: NEric B Munson <ebmunson@us.ibm.com> [ Guarantee bisectabilty by fixing up builtin-report.c ] Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1267804269-22660-5-git-send-email-acme@infradead.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Eric B Munson 提交于
In order to minimize the impact of storing multiple events in a report this function will now take the root of the histogram tree so that the logic for selecting the proper tree can be inserted before the call. Signed-off-by: NEric B Munson <ebmunson@us.ibm.com> Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1267804269-22660-3-git-send-email-acme@infradead.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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