wireguard-linux/tools/perf/util/hist.h, branch jd/unified-crypt-queue

perf report: Add 'cgroup' sort key

2020-04-03T12:37:55Z

The cgroup sort key is to show cgroup membership of each task. Currently it shows full path in the cgroupfs (not relative to the root of cgroup namespace) since it'd be more intuitive IMHO. Otherwise root cgroup in different namespaces will all show same name - "/". The cgroup sort key should come before cgroup_id otherwise sort_dimension__add() will match it to cgroup_id as it only matches with the given substring. For example it will look like following. Note that record patch adding --all-cgroups patch will come later. $ perf record -a --namespace --all-cgroups cgtest [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.208 MB perf.data (4090 samples) ] $ perf report -s cgroup_id,cgroup,pid ... # Overhead cgroup id (dev/inode) Cgroup Pid:Command # ........ ..................... .......... ............... # 93.96% 0/0x0 / 0:swapper 1.25% 3/0xeffffffb / 278:looper0 0.86% 3/0xf000015f /sub/cgrp1 280:cgtest 0.37% 3/0xf0000160 /sub/cgrp2 281:cgtest 0.34% 3/0xf0000163 /sub/cgrp3 282:cgtest 0.22% 3/0xeffffffb /sub 278:looper0 0.20% 3/0xeffffffb / 280:cgtest 0.15% 3/0xf0000163 /sub/cgrp3 285:looper3 Signed-off-by: Namhyung Kim Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Mark Rutland Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20200325124536.2800725-6-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf report: Support a new key to reload the browser

2020-03-24T12:37:27Z

Sometimes we may need to reload the browser to update the output since some options are changed. This patch creates a new key K_RELOAD. Once the __cmd_report() returns K_RELOAD, it would repeat the whole process, such as, read samples from data file, sort the data and display in the browser. v5: --- 1. Fix the 'make NO_SLANG=1' error. Define K_RELOAD in util/hist.h. 2. Skip setup_sorting() in repeat path if last key is K_RELOAD. v4: --- Need to quit in perf_evsel_menu__run if key is K_RELOAD. Signed-off-by: Jin Yao Tested-by: Arnaldo Carvalho de Melo Acked-by: Jiri Olsa Cc: Alexander Shishkin Cc: Andi Kleen Cc: Kan Liang Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20200220013616.19916-3-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf hists: Fix variable name's inconsistency in hists__for_each() macro

2019-12-20T21:58:13Z

Variable names are inconsistent in hists__for_each macro(). Due to this inconsistency, the macro replaces its second argument with "fmt" regardless of its original name. So far it works because only "fmt" is passed to the second argument. However, this behavior is not expected and should be fixed. Fixes: f0786af536bb ("perf hists: Introduce hists__for_each_format macro") Fixes: aa6f50af822a ("perf hists: Introduce hists__for_each_sort_list macro") Signed-off-by: Yuya Fujita Acked-by: Jiri Olsa Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/OSAPR01MB1588E1C47AC22043175DE1B2E8520@OSAPR01MB1588.jpnprd01.prod.outlook.com Signed-off-by: Arnaldo Carvalho de Melo

perf report: Jump to symbol source view from total cycles view

2019-11-19T22:37:04Z

This patch supports jumping from tui total cycles view to symbol source view. For example, perf record -b ./div perf report --total-cycles In total cycles view, we can select one entry and press 'a' or press ENTER key to jump to symbol source view. This patch also sets sort_order to NULL in cmd_report() which will use the default branch sort order. The percent value in new annotate view will be consistent with the percent in annotate view switched from perf report (we observed the original percent gap with previous patches). v2: --- Fix the 'make NO_SLANG=1' error. (set __maybe_unused to annotation_opts in block_hists_tui_browse()). Signed-off-by: Jin Yao Acked-by: Jiri Olsa Tested-by: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: Andi Kleen Cc: Jin Yao Cc: Kan Liang Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20191118140849.20714-2-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf util: Move block TUI function to ui browsers

2019-11-19T22:33:40Z

It would be nice if we could jump to the assembler/source view (like the normal perf report) from total cycles view. This patch moves the block_hists_tui_browse from block-info.c to ui/browsers/hists.c in order to reuse some browser codes (i.e do_annotate) for implementing new annotation view. v2: --- Fix the 'make NO_SLANG=1' error. (Change 'int block_hists_tui_browse()' to 'static inline int block_hists_tui_browse()') Signed-off-by: Jin Yao Acked-by: Jiri Olsa Cc: Alexander Shishkin Cc: Andi Kleen Cc: Jin Yao Cc: Kan Liang Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20191118140849.20714-1-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf hist: Count the total cycles of all samples

2019-11-07T12:14:15Z

We can get the per sample cycles by hist__account_cycles(). It's also useful to know the total cycles of all samples in order to get the cycles coverage for a single program block in further. For example: coverage = per block sampled cycles / total sampled cycles This patch creates a new argument 'total_cycles' in hist__account_cycles(), which will be added with the cycles of each sample. Signed-off-by: Jin Yao Reviewed-by: Jiri Olsa Cc: Alexander Shishkin Cc: Andi Kleen Cc: Jin Yao Cc: Kan Liang Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20191107074719.26139-4-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf hist: Add missing 'struct branch_stack' forward declaration

2019-09-20T12:19:22Z

Its needed, was being obtained indirectly, fix it. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-srzphk0ehptfn3zqmpkgsi65@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Move 'struct events_stats' and prototypes to separate header

2019-09-01T01:24:10Z

This will allow us to untangle the header dependency a bit more, as some places will not need event.h anymore. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-enqncj29ovzaat3cd9203rwl@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf hist: Remove needless ui/progress.h from hist.h

2019-09-01T01:24:10Z

We only need a forward declaration, add it and fixup all the files that need ui_progress definitions but were wrongly getting it from hist.h. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-84a90o9jdxybffxo9jmouokw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf top: Fix event group with more than two events

2019-08-28T21:15:03Z

The event group feature links relevant hist entries among events so that they can be displayed together. During the link process, each hist entry in non-leader events is connected to a hist entry in the leader event. This is done in order of events specified in the command line so it assumes that events are linked in the order. But 'perf top' can break the assumption since it does the link process multiple times. For example, a hist entry can be in the third event only at first so it's linked after the leader. Some time later, second event has a hist entry for it and it'll be linked after the entry of the third event. This makes the code compilicated to deal with such unordered entries. This patch simply unlink all the entries after it's printed so that they can assume the correct order after the repeated link process. Also it'd be easy to deal with decaying old entries IMHO. Signed-off-by: Namhyung Kim Reported-by: Arnaldo Carvalho de Melo Tested-by: Arnaldo Carvalho de Melo Cc: Jiri Olsa Link: http://lkml.kernel.org/r/20190827231555.121411-2-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo