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2015-09-14perf top: Fix segfault pressing -> with no hist entriesWang Nan
'perf top' segfaults with following operation: # perf top -e page-faults -p 11400 # 11400 never generates page-fault Then on the resulting empty interface, press right key: # ./perf top -e page-faults -p 11400 perf: Segmentation fault -------- backtrace -------- ./perf[0x535428] /lib64/libc.so.6(+0x3545f)[0x7f0dd360745f] ./perf[0x531d46] ./perf(perf_evlist__tui_browse_hists+0x96)[0x5340d6] ./perf[0x44ba2f] /lib64/libpthread.so.0(+0x81d0)[0x7f0dd49dc1d0] /lib64/libc.so.6(clone+0x6c)[0x7f0dd36b90dc] The bug resides in perf_evsel__hists_browse() that, in the above circumstance browser->selection can be NULL, but code after skip_annotation doesn't consider it. This patch fix it by checking browser->selection before fetching browser->selection->map. Signed-off-by: Wang Nan <wangnan0@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1442226235-117265-1-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-28perf tools: Rename perf_session_env to perf_envKan Liang
As it is not necessarily tied to a perf.data file and needs using in places where a perf_session is not required. Suggested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Kan Liang <kan.liang@intel.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1440755289-30939-4-git-send-email-kan.liang@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-12perf report: Show call graph from reference eventsKan Liang
Introduce --show-ref-call-graph for perf report to print reference callgraph for no callgraph event. Here is an example. perf report --show-ref-call-graph --stdio # To display the perf.data header info, please use --header/--header-only options. # # # Total Lost Samples: 0 # # Samples: 5 of event 'cpu/cpu-cycles,call-graph=fp/' # Event count (approx.): 144985 # # Children Self Command Shared Object Symbol # ........ ........ ....... ................ ........................................ # 72.30% 0.00% sleep [kernel.vmlinux] [k] entry_SYSCALL_64_fastpath | ---entry_SYSCALL_64_fastpath | |--22.62%-- __GI___libc_nanosleep --77.38%-- [...] ...... # Samples: 6 of event 'cpu/instructions,call-graph=no/', show reference callgraph # Event count (approx.): 172780 # # Children Self Command Shared Object Symbol # ........ ........ ....... ................ ........................................ # 73.16% 0.00% sleep [kernel.vmlinux] [k] entry_SYSCALL_64_fastpath | ---entry_SYSCALL_64_fastpath | |--31.44%-- __GI___libc_nanosleep --68.56%-- [...] Signed-off-by: Kan Liang <kan.liang@intel.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1439289050-40510-3-git-send-email-kan.liang@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-12perf hists browser: Make ESC unzoom as wellArnaldo Carvalho de Melo
In addition to <-, that may be repurposed for horizontal scrolling. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-w3rctelxr4yxrjufx7z3fclb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-12perf ui browser: Introduce ui_browser__printf()Arnaldo Carvalho de Melo
To remove direct access to libslang functions, with the immediate goal of implementing horizontal scrolling at the ui_browser level, but also because we may at some point want to implement ui_browser with other UIs in addition to the current libslang implementation. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-w0niblabqrkecs4o0eogfy6c@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-12perf ui browser: Introduce ui_browser__write_nstring()Arnaldo Carvalho de Melo
To remove direct access to libslang functions, with the immediate goal of implementing horizontal scrolling at the ui_browser level, but also because we may at some point want to implement ui_browser with other UIs in addition to the current libslang implementation. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-437ineavoejzou727mr9bxpi@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-13perf hists browser: Take the --comm, --dsos, etc filters into accountArnaldo Carvalho de Melo
At some point: commit 2c86c7ca7606 Author: Namhyung Kim <namhyung@kernel.org> Date: Mon Mar 17 18:18:54 2014 -0300 perf report: Merge al->filtered with hist_entry->filtered We stopped dropping samples for things filtered via the --comms, --dsos, --symbols, etc, i.e. things marked as filtered in the symbol resolution routines (thread__find_addr_map(), perf_event__preprocess_sample(), etc). But then, in: commit 268397cb2a47 Author: Namhyung Kim <namhyung@kernel.org> Date: Tue Apr 22 14:49:31 2014 +0900 perf top/tui: Update nr_entries properly after a filter is applied We don't take into account entries that were filtered in perf_event__preprocess_sample() and friends, which leads to inconsistency in the browser seek routines, that expects the number of hist_entry->filtered entries to match what it thinks is the number of unfiltered, browsable entries. So, for instance, when we do: perf top --symbols ___non_existent_symbol___ the hist_browser__nr_entries() routine thinks there are no filters in place, uses the hists->nr_entries but all entries are filtered, leading to a segfault. Tested with: perf top --symbols malloc,free --percentage=relative Freezing, by pressing 'f', at any time and doing the math on the percentages ends up with 100%, ditto for: perf top --dsos libpthread-2.20.so,libxul.so --percentage=relative Both were segfaulting, all fixed now. More work needed to do away with checking if filters are in place, we should just use the nr_non_filtered_samples counter, no need to conditionally use it or hists.nr_filter, as what the browser does is just show unfiltered stuff. An audit of how it is being accounted is needed, this is the minimal fix. Reported-by: Michael Petlan <mpetlan@redhat.com> Fixes: 268397cb2a47 ("perf top/tui: Update nr_entries properly after a filter is applied") Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6w01d5q97qk0d64kuojme5in@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-22perf top: Move toggling event logic into hists browserNamhyung Kim
Current 'f' key action to enable/disable events won't work if there're more than one event since perf_evsel_menu__run() doesn't return the key. So move it to the hists browser loop so that it can be processed as like other key action, and it's more natural to handle it there IMHO. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1434858076-6533-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-19perf hists browser: React to unassigned hotkey pressingArnaldo Carvalho de Melo
When that happens we were just ignoring the key press, now this message is presented in the bottom line (the help line): "Press '?' for help on key bindings" Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-iyma2j5kj3q9i1stl4mfh90n@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-19perf hists browser: Honour the help line provided by builtin-{top,report}.cArnaldo Carvalho de Melo
The hists_browser was replacing whatever helpline provided by 'top' or 'report' with a static "Press '?' for help on key bindings", fix it. Now the message passed by top appears at the bottom of the screen: "For a higher level overview, try: perf top --sort comm,dso" As well the message that will be added when the user presses 'f' to disable the events, something along the lines of "press f again to re-enable...". Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-dacaja70mbfz3a0yj1n180gx@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-19perf hists browser: Do not exit when 'f' is pressed in 'report' modeArnaldo Carvalho de Melo
The 'f' hotkey is only used when in 'top', dynamic mode, to enable/disable events, currently not making sense in the 'report', static mode, where we can't go from showing the histogram entries created from a perf.data file to adding more events after recreating the evlist created from the perf.data file, albeit possible, this is not implemented right now. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-lholzf472pu98dkkijggwx2m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-19perf top: Replace CTRL+z with 'f' as hotkey for enable/disable eventsArnaldo Carvalho de Melo
I.e. 'freeze'/'unfreeze', this is because CTRL+z has a well known action, i.e. suspend the app, perf needs to follow that convention, that will be done on a separate patch, tho. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-oedcl6ovohara4koig14ayip@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-17perf top: Allow disabling/enabling events dynamiclyArnaldo Carvalho de Melo
Now it is possible to press CTRL+z at anytime and that will disable the events being monitored, essentially turning 'top' into 'report', with pressing CTRL+z again making it enable the events again, returning to the 'top' behaviour, i.e. dynamic + decaying of older samples. One may want, for instance, play with: -d, --delay <n> number of seconds to delay between refreshes and: -z, --zero zero history across updates Plus CTRL+z to see only the events since last zeroing, etc. Suggested-by: Ingo Molnar <mingo@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zq7tnh5462blt2yda0bcxh5b@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-29perf tools: Make Ctrl-C stop processing on TUINamhyung Kim
It was inconvenient that perf cannot be quit with SIGINT during processing samples on TUI especially for large data files. This was because the first argument of SLang_init_tty(), abort_char, being 0. The manual says it's the ascii value of the control character that will be used to generate the interrupt signal [1]. Passing -1 means to use the default value (Ctrl-C). However, after processing samples, Ctrl-C was used to in other cases as well - like stepping back from annotate. So recover the original behavior after processing. [1] http://jedsoft.org/slang/doc/html/cslang-6.html#ss6.1 Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1432904024-13170-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-05perf tools: Move TUI-specific fields out of map_symbolNamhyung Kim
The has_children and unfolded fields don't belong to the struct map_symbol since they're used by the TUI only. Move those fields out of map_symbol since the struct is also used by other places. This will also help to compact the sizeof struct hist_entry. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1429687101-4360-11-git-send-email-namhyung@kernel.org Link: http://lkml.kernel.org/r/1430837746-5439-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-05perf hists browser: Simplify zooming code using pstack_peek()Namhyung Kim
Now LEFT key press action can just use do_zoom_dso/thread() code to get out of the current filter. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1429838133-14001-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-05perf hists browser: Split popup menu actions - part 2Namhyung Kim
Currently perf_evsel__hists_browse() function spins on a huge loop and handles many key actions. Since it's hard to read and modify, let's split it out into small helper functions. The add_XXX_opt() functions are to register popup menu item on the selected entry. When it adds an item, it also saves related data into struct popup_action and returns 1 so that it can increase the number of items (nr_options). With this change, we can simplify the code just to call selected callback function without considering various conditions. A callback function named do_XXX is called with saved data when the item is selected by user. No functional change intended. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1429687101-4360-9-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-05perf hists browser: Split popup menu actionsNamhyung Kim
Currently perf_evsel__hists_browse() function spins on a huge loop and handles many key actions. Since it's hard to read and modify, let's split it out into small helper functions. This patch introduces do_XXX() functions which corresponds to each goto label. This way we can call such functions both from key press actions and popup menu actions. No functional change intended. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1429687101-4360-8-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-05perf hists browser: Save perf_session_env in the hist_browserNamhyung Kim
The perf_session_env is to save system informantion at the recording time to be refered in the hist browser. So it'd be better to keep in the struct hist_browser. This is a preparation to later change. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1429687101-4360-7-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-05perf hists browser: Save pstack in the hist_browserNamhyung Kim
The struct pstack is to save currently applied thread and/or dso filters in the browser. So it'd be better to keep in the struct hist_browser. This is a preparation to later change. Suggested-by: Arnaldo Carvalho de Melo <acme@kernel.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1429687101-4360-6-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-05perf hists browser: Save hist_browser_timer pointer in hist_browserNamhyung Kim
The struct hist_browser_timer is to carry perf-top related info throughout the hist browser code. So it'd be better to keep in the struct hist_browser. This is a preparation to later change. Suggested-by: Arnaldo Carvalho de Melo <acme@kernel.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1429687101-4360-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-05perf hists browser: Fix possible memory leakNamhyung Kim
The options array saves strings for each popup menu item. The number of items can be vary according to the currently selected item. So it can leak some memory if it's exited from a small item. Fix it by freeing all items when loop terminates. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1429687101-4360-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-21perf hists browser: Indicate which callchain entries are annotatedArnaldo Carvalho de Melo
Now that we can annotate entries in a callchain, show which ones have an associated symbol and samples, by adding a right arrow just before the symbol name when in verbose mode. To toggle verbose mode press 'V'. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-d2rf1p3h5gdp7hdl2gf2bozl@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-17perf hists browser: Allow annotating entries in callchainsArnaldo Carvalho de Melo
Instead of annotating just the top level hist_entry, allow instead annotating a map_symbol, i.e. the top level hist_entry or one of the callchains for which there were samples. Suggested-by: Stephane Eranian <eranian@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-k1zxj5564je9jei4yd15ouwn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-17perf hists: Remove hist_entry->used, not used anymoreArnaldo Carvalho de Melo
Since hist_entry__delete() nowadays doesn't actually frees anything that may be in use by the annotation code. Eventually we will solve this for good by reference counting struct symbol. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-uldtgljymtrkns0knpiso5op@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-16perf hists browser: Fix up some branch alignmentArnaldo Carvalho de Melo
Those asprintf return checks should be aligned with the other conditionals, fix it. Also add {} blocks to further clarify. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> echo Link: http://lkml.kernel.org/n/tip-`ranpwd -l 24`@git.kernel.org Link: http://lkml.kernel.org/n/tip-nqgs07jfphbkw67wja870d3r@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-16perf hists browser: Simplify symbol annotation menu setupArnaldo Carvalho de Melo
No need to repeat some tests, skip annotation instead. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6h6igrb81u4e6rwfmx7dv47n@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-12perf hists browser: Fix UI bug after fold/unfoldHe Kuang
In perf hists browser, the fold/unfold stat of each hist entry is recorded but hb->nr_callchain_rows loses its value after zoom out and zoom in back. This causes a wrong row cursor range that restrict user to move down anymore. This bug can be reproduced as follows: $ perf record -g -e syscalls:* ls $ perf report Available samples ================================================================ 2 syscalls:sys_enter_mprotect <= [enter one of the entries] 2 syscalls:sys_exit_mprotect 13 syscalls:sys_enter_brk ... In the hists brower, unfold some of the items, now the cursor can reach to any rows: Children Self Command Shared Object Symbol ================================================================ - 100.00% 100.00% ls libuClibc-0.9.33.2.so [.] lstat64 - lstat64 16.67% 0x6469702e64 8.33% 0x646970 8.33% 0x617461 8.33% 0x65 - 16.67% 0.00% ls [unknown] [.]0x6469702e64 0x6469702e64 <= [cursor can reach to bottom line, everything is ok] Now, zoom back to "Available samples" and enter again: Children Self Command Shared Object Symbol ================================================================ - 100.00% 100.00% ls libuClibc-0.9.33.2.so [.] lstat64 - lstat64 16.67% 0x6469702e64 8.33% 0x646970 8.33% 0x617461 <= [cursor may stop here, can't move down anymore] 8.33% 0x65 - 16.67% 0.00% ls [unknown] [.]0x6469702e64 0x6469702e64 This patch recalculates hb->nr_callchain_rows to fix the bug. Signed-off-by: He Kuang <hekuang@huawei.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1426144909-18951-1-git-send-email-hekuang@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-03perf tools: Reference count struct threadArnaldo Carvalho de Melo
We need to do that to stop accumulating entries in the dead_threads linked list, i.e. we were keeping references to threads in struct hists that continue to exist even after a thread exited and was removed from the machine threads rbtree. We still keep the dead_threads list, but just for debugging, allowing us to iterate at any given point over the threads that still are referenced by things like struct hist_entry. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3ejvfyed0r7ue61dkurzjux4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-08perf hists browser: Fix segfault when showing callchainNamhyung Kim
When perf report on TUI shows callchain it checks first node has siblings to determine whether it needs to print percentage value. But it missed a case that first node is NULL. So sometimes it segfaults like below: $ perf top -g perf: Segmentation fault -------- backtrace -------- perf[0x4fcefb] /usr/lib/libc.so.6(+0x33b20)[0x7f2a35839b20] perf(rb_next+0x8)[0x47d3d8] perf[0x4f6058] perf[0x4f833b] perf[0x4f8610] perf[0x4f209e] perf(ui_browser__run+0x3a)[0x4f2e6a] perf[0x4f94ee] perf(perf_evlist__tui_browse_hists+0x94)[0x4fbbf4] perf[0x444d10] /usr/lib/libpthread.so.0(+0x7314)[0x7f2a37070314] /usr/lib/libc.so.6(clone+0x6d)[0x7f2a358ee5bd] $ addr2line -e `which perf` 0x4f6058 /home/namhyung/project/linux/tools/perf/ui/browsers/hists.c:553 I don't know why the backtrace didn't print some symbols.. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Fixes: 4087d11cd945 ("perf hists browser: Print overhead percent value for first-level callchain") Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1419401076-21700-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-09perf hists browser: Change print format from %lu to %PRIu64Tom Huynh
The nr_events variable in tools/perf/ui/browsers/hists.c is of type u64, so the print format (%lu) causes 'perf report' to show 0 event count when running with 32-bit userspace without redirection. This patch fixes that problem by printing nr_events as PRIu64. Signed-off-by: Tom Huynh <tom.huynh@freescale.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kim Phillips <kim.phillips@freescale.com> Cc: Matt Mullins <mmullins@mmlx.us> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1417541842-9747-1-git-send-email-tom.huynh@freescale.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-11-24perf tools: Collapse first level callchain entry if it has siblingNamhyung Kim
If first level callchain has more than single path like when -g caller option is given, it should show only first one in the path and hide others. But it didn't do it properly and just hindered the output. Before: - 80.33% 11.11% abc2 abc2 [.] main + 86.18% main 13.82% __libc_start_main main After: - 80.33% 11.11% abc2 abc2 [.] main + 86.18% main + 13.82% __libc_start_main Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1416816807-6495-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-11-24perf hists browser: Print overhead percent value for first-level callchainNamhyung Kim
Currently perf report on TUI doesn't print percent for first-level callchain entry. I guess it (wrongly) assumes that there's only a single callchain in the first level. This patch fixes it by handling the first level callchains same as others - if it's not 100% it should print the percent value. Also it'll affect other callchains in the other way around - if it's 100% (single callchain) it should not print the percentage. Before: - 30.95% 6.84% abc2 abc2 [.] a - a - 70.00% c - 100.00% apic_timer_interrupt smp_apic_timer_interrupt local_apic_timer_interrupt hrtimer_interrupt ... + 30.00% b + __libc_start_main After: - 30.95% 6.84% abc2 abc2 [.] a - 77.90% a - 70.00% c - apic_timer_interrupt smp_apic_timer_interrupt local_apic_timer_interrupt hrtimer_interrupt ... + 30.00% b + 22.10% __libc_start_main Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1416816807-6495-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-11-19perf callchain: Use a common function to resolve symbol or nameAndi Kleen
Refactor the duplicated code to resolve the symbol name or the address of a symbol into a single function. Used in next patch to add common functionality. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1415844328-4884-6-git-send-email-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-10-15perf top: Add a visual cue for toggle zeroing of samplesTaeung Song
When 'perf top' is run, one can't easily find a difference between -z option and normal output. So I added a visual cue to know whether it is the zeroing or not. Output is as below. Before: $ perf top Samples: 61K of event 'cycles', Event count (approx.): 3908136933 Overhead Shared Object Symbol 1.42% firefox [.] 0x0000000000011e76 1.32% libpthread-2.17.so [.] pthread_mutex_lock If you press key 'z' or run with zero option like '$ perf top --zero', it is as below. After: Samples: 61K of event 'cycles', Event count (approx.): 3908136933 [z] Overhead Shared Object Symbol 1.42% firefox [.] 0x0000000000011e76 1.32% libpthread-2.17.so [.] pthread_mutex_lock Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1412665995-26359-1-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-10-09perf evsel: Add hists helperArnaldo Carvalho de Melo
Not all tools need a hists instance per perf_evsel, so lets pave the way to remove evsel->hists while leaving a way to access the hists from a specially allocated evsel, one that comes with space at the end where lives the evsel. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jean Pihet <jean.pihet@linaro.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-qlktkhe31w4mgtbd84035sr2@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-09-26perf hists browser: Fix callchain print bug on TUINamhyung Kim
Currently perf report -g graph option doesn't work as expected and always work as same as -g fractal. This was a bug during recent callchain print code cleanup. Before: $ perf report -g graph Children Self Command Shared Object Symbol ================================================================ - 56.19% 35.41% sleep [kernel.kallsyms] [k] page_fault - page_fault + 63.02% _dl_relocate_object + 36.98% clear_user After: Children Self Command Shared Object Symbol ================================================================ - 56.19% 35.41% sleep [kernel.kallsyms] [k] page_fault - page_fault + 35.41% _dl_relocate_object + 20.78% clear_user Reviewed-by: David Ahern <dsahern@gmail.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1411434104-5307-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-08-24perf hists browser: Consolidate callchain print functions in TUINamhyung Kim
Currently there're two callchain print functions in TUI - one for the hists browser and another for file dump. They do almost same job so it'd be better consolidate the codes. To do that, provide two callbacks to the generic logic - one for printing and another for checking whether it should stop. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1408666401-594-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-08-22perf hists browser: Cleanup callchain print functionsNamhyung Kim
The hist_browser__show_callchain() and friends don't need to be that complex. They're splitted in 3 pieces - one for traversing top-level tree, other one for special casing first chains in the top-level entries, and last one for recursive traversing inner trees. It led to code duplication and unnecessary complexity IMHO. Simplify the function and consolidate the logic into a single function - it can recursively call itself. A little difference in printing callchains in top-level tree can be handled with a small change. It should have no functional change. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1408583746-5540-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-08-20perf hists browser: Factor out hist_browser__show_callchain_entry()Namhyung Kim
Factor out duplicate callchain printing code into the hist_browser__ show_callchain_entry(). Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1408522080-26556-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-08-20perf hists browser: Get rid of unused 'remaining' variableNamhyung Kim
It seems that the 'remaining' variable is not used by any real code. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1408522080-26556-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-08-13perf top: Handle 'z' key for toggle zeroing samples in TUINamhyung Kim
The perf top TUI lacks 'z' key support to toggle sample zeroing. Add it. Reported-by: Stephane Eranian <eranian@google.com> Tested-by: Stephane Eranian <eranian@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1407831366-28892-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-08-13perf hists browser: Fix a small callchain display bugNamhyung Kim
The currently when perf TUI report shows callchain, the first level chains have bogus '+' sign even though only the last one has children. Since they are on a single line of the chain, toggling intermediate entries has no effect. Fix it to show '+' sign at the last entry only. Note that non-first level callchain entries don't have this problem. Before: --------------------------------------------------------------------------- Children Self Command Shared Object Symbols - 40.70% 0.00% swapper [kernel.kallsyms] [k] cpuidle_wrap_enter + cpuidle_wrap_enter + cpuidle_enter_tk + cpuidle_idle_call + cpu_idle After: --------------------------------------------------------------------------- Children Self Command Shared Object Symbols - 40.70% 0.00% swapper [kernel.kallsyms] [k] cpuidle_wrap_enter cpuidle_wrap_enter cpuidle_enter_tk cpuidle_idle_call + cpu_idle Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Ingo Molnar <mingo@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/1407909761-10822-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-08-12perf tools: Fix column alignment when headers aren't shown on TUINamhyung Kim
If user sets ui.show-headers config option to false, it didn't calculate default column width so it broke the alignment. This is because it does the calculation just before showing headers. Move it to the beginning of the hist browser so that it can be called regardless of the config option. Reported-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1406785662-5534-8-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-08-12perf report: Honor column width settingNamhyung Kim
Set column width and do not change it if user gives -w/--column-widths option. It'll truncate longer symbols than the width if exists. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1406785662-5534-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-08-12perf tools: Save column length in perf_hpp_fmtNamhyung Kim
Save column length in the hpp format and pass it to print functions. This is a preparation for users to control column width in the output. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1406785662-5534-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-08-12perf tools: Make __hpp__fmt() receive an additional len argumentNamhyung Kim
So that it can properly handle alignment requirements later. To do that, add percent_color_len_snprintf() fucntion to help coloring of overhead columns. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1406785662-5534-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-07-07perf hists browser: Add ui.show-headers config file optionJiri Olsa
Adding ui.show-headers config file option to define if the histogram entries headers will start visible or not. Currently columns headers are displayed by default, following lines in ~/.perfconfig file will disable that: [ui] show-headers = false Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403886418-5556-4-git-send-email-jolsa@kernel.org [ renamed symbol_conf.show_headers to .show_hist_headers ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-07-07perf hists browser: Display columns header text on 'H' pressJiri Olsa
Displaying columns header text whenever 'H' is pressed, and hiding it on on another press. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/n/tip-w9pcqpum5erza2a05ysvollz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-07-07perf hists browser: Add support for showing columns headerArnaldo Carvalho de Melo
Open up space to show a one-line header text whenever 'H' is pressed, hide it on another key press. Follow up patch will format this line from the set of headers used. Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/n/tip-m894d6qk30h3qofw4k8neq4q@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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