- 01 Jun, 2014 9 commits
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Namhyung Kim authored
When accumulating callchain entry, also save current snapshot of the chain so that it can show the rest of the chain. Signed-off-by:
Namhyung Kim <namhyung@kernel.org> Tested-by:
Arun Sharma <asharma@fb.com> Tested-by:
Rodrigo Campos <rodrigo@sdfg.com.ar> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/1401335910-16832-10-git-send-email-namhyung@kernel.orgSigned-off-by:
Jiri Olsa <jolsa@kernel.org>
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Namhyung Kim authored
The callchain_cursor_snapshot() is for saving current status of the callchain. It'll be used to accumulate callchain information for each node. Signed-off-by:
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Namhyung Kim authored
It is possble that a callchain has cycles or recursive calls. In that case it'll end up having entries more than 100% overhead in the output. In order to prevent such entries, cache each callchain node and skip if same entry already cumulated. Signed-off-by:
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Namhyung Kim authored
The cpumode and level in struct addr_localtion was set for a sample and but updated as cumulative callchains were added. This led to have non-matching symbol and cpumode in the output. Update it accordingly based on the fact whether the map is a part of the kernel or not. This is a reverse of what thread__find_addr_map() does. Signed-off-by:
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Namhyung Kim authored
Call __hists__add_entry() for each callchain node to get an accumulated stat for an entry. Introduce new cumulative_iter ops to process them properly. Signed-off-by:
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Namhyung Kim authored
To support callchain accumulation, @entry should be recognized if it's accumulated or not when add_hist_entry() called. The period of an accumulated entry should be added to ->stat_acc but not ->stat. Add @sample_self arg for that. Signed-off-by:
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Namhyung Kim authored
Maintain accumulated stat information in hist_entry->stat_acc if symbol_conf.cumulate_callchain is set. Fields in ->stat_acc have same vaules initially, and will be updated as callchain is processed later. Signed-off-by:
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Namhyung Kim authored
There're some duplicate code when adding hist entries. They are different in that some have branch info or mem info but generally do same thing. So introduce new struct hist_entry_iter and add callbacks to customize each case in general way. The new perf_evsel__add_entry() function will look like: iter->prepare_entry(); iter->add_single_entry(); while (iter->next_entry()) iter->add_next_entry(); iter->finish_entry(); This will help further work like the cumulative callchain patchset. Signed-off-by: -
Namhyung Kim authored
There're some duplicate code for counting number of samples. Add hists__inc_nr_samples() and reuse it. Suggested-by:
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- 22 May, 2014 1 commit
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Ingo Molnar authored
Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf into perf/core Pull perf/core improvements and fixes from Jiri Olsa: * Android related fixes for pager and map dso resolving (Michael Lentine) * Add -F option for specifying output fields (Namhyung Kim) Signed-off-by:
Ingo Molnar <mingo@kernel.org>
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- 21 May, 2014 22 commits
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Michael Lentine authored
This patch automatically adjusts the path of MMAP records associated with Android system libraries. The Android system is organized with system libraries found in /system/lib and user libraries in /data/app-lib. On the host system (not running Android), system libraries can be found in the downloaded NDK directory under ${NDK_ROOT}/platforms/${APP_PLATFORM}/arch-${ARCH}/usr/lib and the user libraries are installed under libs/${APP_ABI} within the apk build directory. This patch makes running the reporting tools possible on the host system using the libraries from the NDK. Signed-off-by:Michael Lentine <mlentine@google.com> Reviewed-by:
Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1400579330-5043-3-git-send-email-eranian@google.com [ fixed 'space required before the open parenthesis' checkpatch.pl errors ] Signed-off-by:
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Michael Lentine authored
This patch adds a fallback to cat for the pager. This is useful on environments, such as Android, where less does not exist. It is better to default to cat than to abort. Signed-off-by:
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Namhyung Kim authored
With new output fields option, its internal implementation was changed so add a new testcase to verify whether it breaks things. Signed-off-by:
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Namhyung Kim authored
Those print helper functions can be reused by later hist test cases so factor them out to a common location. Signed-off-by:
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Namhyung Kim authored
The reset_output_field() function is for clearing output field settings and will be used for test code in later patch. Signed-off-by:
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Namhyung Kim authored
Now we moved to the perf_hpp_[_sort]_list so no need to keep the old hist_entry__sort_list and sort__first_dimension. Also the hist_entry__sort_snprintf() can be gone as hist_entry__snprintf() provides the functionality. Signed-off-by:
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Namhyung Kim authored
Some fields missed to set default column length so it broke align in --stdio output. Add perf_hpp__reset_width() to set it to a sane default value. Note that this change will ignore -w/--column-widths option for now. Before: $ perf report -F cpu,comm,overhead --stdio ... # CPU Command Overhead # ............... ........ # 0 firefox 2.65% 0 kworker/0:0 1.45% 0 swapper 5.52% 0 synergys 0.92% 1 firefox 4.54% After: # CPU Command Overhead # ... ............... ........ # 0 firefox 2.65% 0 kworker/0:0 1.45% 0 swapper 5.52% 0 synergys 0.92% 1 firefox 4.54% Signed-off-by: -
Namhyung Kim authored
When it converted sort entries to hpp formats, it missed se->elide handling, so add it for compatibility. Signed-off-by:
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Namhyung Kim authored
The --fields option is to allow user setup output field in any order. It can receive any sort keys and following (hpp) fields: overhead, overhead_sys, overhead_us, sample and period If guest profiling is enabled, overhead_guest_{sys,us} will be available too. More more information, please see previous patch "perf report: Add -F option to specify output fields" Signed-off-by: -
Namhyung Kim authored
The hists__filter_entries() function is called when down arrow key is pressed for navigating through the entries in TUI. It has a check for filtering out entries that have very small overhead (under min_pcnt). However it just assumed the entries are sorted by the overhead so when it saw such a small overheaded entry, it just stopped navigating as an optimization. But it's not true anymore due to new --fields and --sort optoin behavior and this case users cannot go down to a next entry if ther's an entry with small overhead in-between. Signed-off-by:
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Namhyung Kim authored
Currently, what the sort_entry does is just identifying hist entries so that they can be grouped properly. However, with -F option support, it indeed needs to sort entries appropriately to be shown to users. So add ->sort() member to do it. Signed-off-by:
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Namhyung Kim authored
The -F/--fields option is to allow user setup output field in any order. It can receive any sort keys and following (hpp) fields: overhead, overhead_sys, overhead_us, sample and period If guest profiling is enabled, overhead_guest_{sys,us} will be available too. The output fields also affect sort order unless you give -s/--sort option. And any keys specified on -s option, will also be added to the output field list automatically. $ perf report -F sym,sample,overhead ... # Symbol Samples Overhead # .......................... ............ ........ # [.] __cxa_atexit 2 2.50% [.] __libc_csu_init 4 5.00% [.] __new_exitfn 3 3.75% [.] _dl_check_map_versions 1 1.25% [.] _dl_name_match_p 4 5.00% [.] _dl_setup_hash 1 1.25% [.] _dl_sysdep_start 1 1.25% [.] _init 5 6.25% [.] _setjmp 6 7.50% [.] a 8 10.00% [.] b 8 10.00% [.] brk 1 1.25% [.] c 8 10.00% Note that, the example output above is captured after applying next patch which fixes sort/comparing behavior. Requested-by: -
Namhyung Kim authored
So that it can be set properly prior to set up output fields. That makes easy to handle/warn errors during the setup since it doesn't need to be bothered with the GUI. Signed-off-by:
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Namhyung Kim authored
The perf uses different default sort orders for different use-cases, and this was scattered throughout the code. Add get_default_sort_ order() function to handle this and change initial value of sort_order to NULL to distinguish it from user-given one. Signed-off-by:
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Namhyung Kim authored
Add overhead{,_sys,_us,_guest_sys,_guest_us}, sample and period sort keys so that they can be selected with --sort/-s option. $ perf report -s period,comm --stdio ... # Overhead Period Command # ........ ............ ............... # 47.06% 152 swapper 13.93% 45 qemu-system-arm 12.38% 40 synergys 3.72% 12 firefox 2.48% 8 xchat Signed-off-by: -
Namhyung Kim authored
The callback was used by TUI for determining color of folded sign using percent of first field/column. But it cannot be used anymore since it now support dynamic reordering of output field. So move the logic to the hist_browser__show_entry(). Signed-off-by:
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Namhyung Kim authored
Until now the hpp and sort functions do similar jobs different ways. Since the sort functions converted/wrapped to hpp formats it can do the job in a uniform way. The perf_hpp__sort_list has a list of hpp formats to sort entries and the perf_hpp__list has a list of hpp formats to print output result. To have a backward compatibility, it automatically adds 'overhead' field in front of sort list. And then all of fields in sort list added to the output list (if it's not already there). Signed-off-by:
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Namhyung Kim authored
Convert output sorting function to use ->sort hpp functions. Signed-off-by:
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Namhyung Kim authored
Move logic of hist_entry__sort_on_period to __hpp__sort() in order to support event group report. Signed-off-by:
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Namhyung Kim authored
It wrapped sort entries to hpp functions, so using the hpp sort list to sort entries. Signed-off-by:
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Namhyung Kim authored
This is a preparation of consolidating management of output field and sort keys. Signed-off-by:
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Namhyung Kim authored
Those function pointers will be used to sort report output based on the selected fields. This is a preparation of later change. Signed-off-by:
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- 20 May, 2014 1 commit
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Ingo Molnar authored
Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf into perf/core Pull perf/core improvements and fixes from Jiri Olsa: * Add libdw DWARF post unwind support for ARM (Jean Pihet) * Consolidate types.h for ARM and ARM64 (Jean Pihet) * Fix possible null pointer dereference in session.c (Masanari Iida) * Cleanup, remove unused variables in map_switch_event() (Dongsheng Yang) * Remove nr_state_machine_bugs in perf latency (Dongsheng Yang) * Remove usage of trace_sched_wakeup(.success) (Peter Zijlstra) Signed-off-by:
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- 19 May, 2014 3 commits
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Stephane Eranian authored
This patch fixes a bug in precise_store_data_hsw() whereby it would set the data source memory level to the wrong value. As per the the SDM Vol 3b Table 18-41 (Layout of Data Linear Address Information in PEBS Record), when status bit 0 is set this is a L1 hit, otherwise this is a L1 miss. This patch encodes the memory level according to the specification. In V2, we added the filtering on the store events. Only the following events produce L1 information: * MEM_UOPS_RETIRED.STLB_MISS_STORES * MEM_UOPS_RETIRED.LOCK_STORES * MEM_UOPS_RETIRED.SPLIT_STORES * MEM_UOPS_RETIRED.ALL_STORES Cc: mingo@elte.hu Cc: acme@ghostprotocols.net Cc: jolsa@redhat.com Cc: jmario@redhat.com Cc: ak@linux.intel.com Tested-and-Reviewed-by:
Don Zickus <dzickus@redhat.com> Signed-off-by:
Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20140515155644.GA3884@quadSigned-off-by:
Thomas Gleixner <tglx@linutronix.de>
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Peter Zijlstra authored
Vince noticed that we test the (unsigned long) flags field against an (unsigned int) constant. This would allow setting the high bits on 64bit platforms and not get an error. There is nothing that uses the high bits, so it should be entirely harmless, but we don't want userspace to accidentally set them anyway, so fix the constants. Cc: Ingo Molnar <mingo@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Reported-by:
Vince Weaver <vincent.weaver@maine.edu> Tested-by:
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Borislav Petkov authored
... in 3a497f48 ("perf: Simplify perf_event_exit_task_context()") Signed-off-by:
Borislav Petkov <bp@suse.de> Signed-off-by:
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- 16 May, 2014 4 commits
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Jean Pihet authored
Adding libdw DWARF post unwind support, which is part of elfutils-devel/libdw-dev package from version 0.158. The new code is contained in unwin-libdw.c object, and implements unwind__get_entries unwind interface function. Signed-off-by:
Jean Pihet <jean.pihet@linaro.org> Reviewed-by:
Will Deacon <will.deacon@arm.com> 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/r/1400229672-16104-4-git-send-email-jean.pihet@linaro.orgSigned-off-by:
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Jean Pihet authored
Adding dwarf unwind test, that setups live machine data over the perf test thread and does the remote unwind. Need to use -fno-optimize-sibling-calls for test compilation, otherwise 'krava_*' function calls are optimized into jumps and omitted from the stack unwind. So far it was enabled only for x86. Signed-off-by:
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Jean Pihet authored
Introducing perf_regs_load function, which is going to be used for dwarf unwind test in following patches. It takes single argument as a pointer to the regs dump buffer and populates it with current registers values. Signed-off-by:
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Jean Pihet authored
Prevents a build breakage since commit d944c4ee 'tools: Consolidate types.h' Signed-off-by:
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