kernel.git/tools/perf/builtin-record.c, branch linux-4.12.y

perf tools: Remove poll.h and wait.h from util.h

2017-04-24T16:43:34Z

Not needed in this header, added to the places that need poll(), wait() and a few other prototypes. Link: http://lkml.kernel.org/n/tip-i39c7b6xmo1vwd9wxp6fmkl0@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Move timestamp routines from util.h to time-utils.h

2017-04-20T16:22:44Z

We already have a header for time utilities, so use it. Link: http://lkml.kernel.org/n/tip-sijzpbvutlg0c3oxn49hy9ca@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Move units conversion/formatting routines to separate object

2017-04-20T16:22:44Z

Out of util.h, to disentangle it a bit more. Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Namhyung Kim Cc: Wang Nan Link: http://lkml.kernel.org/n/tip-vpksyj3w5fk9t8s6mxmkajyr@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add signal.h to places using its definitions

2017-04-20T16:22:43Z

And remove it from util.h, disentangling it a bit more. Link: http://lkml.kernel.org/n/tip-2zg9s5nx90yde64j3g4z2uhk@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Include errno.h where needed

2017-04-19T16:01:51Z

Removing it from util.h, part of an effort to disentangle the includes hell, that makes changes to util.h or something included by it to cause a complete rebuild of the tools. Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Namhyung Kim Cc: Wang Nan Link: http://lkml.kernel.org/n/tip-ztrjy52q1rqcchuy3rubfgt2@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Including missing inttypes.h header

2017-04-19T16:01:46Z

Needed to use the PRI[xu](32,64) formatting macros. Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Namhyung Kim Cc: Wang Nan Link: http://lkml.kernel.org/n/tip-wkbho8kaw24q67dd11q0j39f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Remove unused 'prefix' from builtin functions

2017-03-27T14:58:09Z

We got it from the git sources but never used it for anything, with the place where this would be somehow used remaining: static int run_builtin(struct cmd_struct *p, int argc, const char **argv) { prefix = NULL; if (p->option & RUN_SETUP) prefix = NULL; /* setup_perf_directory(); */ Ditch it. Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Namhyung Kim Cc: Wang Nan Link: http://lkml.kernel.org/n/tip-uw5swz05vol0qpr32c5lpvus@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf record: Synthesize namespace events for current processes

2017-03-14T18:16:09Z

Synthesize PERF_RECORD_NAMESPACES events for processes that were running prior to invocation of perf record. The data for this is taken from /proc/$PID/ns. These changes make way for analyzing events with regard to namespaces. Committer notes: Check if 'tool' is NULL in perf_event__synthesize_namespaces(), as in the test__mmap_thread_lookup case, i.e. 'perf test Lookup mmap thread". Testing it: # ps axH > /tmp/allthreads # perf record -a --namespaces usleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 1.169 MB perf.data (8 samples) ] # perf report -D | grep PERF_RECORD_NAMESPACES | wc -l 602 # wc -l /tmp/allthreads 601 /tmp/allthreads # tail /tmp/allthreads 16951 pts/4 T 0:00 git rebase -i a033bf1bfacdaa25642e6bcc857a7d0f67cc3c92^ 16952 pts/4 T 0:00 /bin/sh /usr/libexec/git-core/git-rebase -i a033bf1bfacdaa25642e6bcc857a7d0f67cc3c92^ 17176 pts/4 T 0:00 git commit --amend --no-post-rewrite 17204 pts/4 T 0:00 vim /home/acme/git/linux/.git/COMMIT_EDITMSG 18939 ? S 0:00 [kworker/2:1] 18947 ? S 0:00 [kworker/3:0] 18974 ? S 0:00 [kworker/1:0] 19047 ? S 0:00 [kworker/0:1] 19152 pts/6 S+ 0:00 weechat 19153 pts/7 R+ 0:00 ps axH # perf report -D | grep PERF_RECORD_NAMESPACES | tail 0 0 0x125068 [0xa0]: PERF_RECORD_NAMESPACES 17176/17176 - nr_namespaces: 7 0 0 0x1255b8 [0xa0]: PERF_RECORD_NAMESPACES 17204/17204 - nr_namespaces: 7 0 0 0x125df0 [0xa0]: PERF_RECORD_NAMESPACES 18939/18939 - nr_namespaces: 7 0 0 0x125f00 [0xa0]: PERF_RECORD_NAMESPACES 18947/18947 - nr_namespaces: 7 0 0 0x126010 [0xa0]: PERF_RECORD_NAMESPACES 18974/18974 - nr_namespaces: 7 0 0 0x126120 [0xa0]: PERF_RECORD_NAMESPACES 19047/19047 - nr_namespaces: 7 0 0 0x126230 [0xa0]: PERF_RECORD_NAMESPACES 19152/19152 - nr_namespaces: 7 0 0 0x129330 [0xa0]: PERF_RECORD_NAMESPACES 19154/19154 - nr_namespaces: 7 0 0 0x12a1f8 [0xa0]: PERF_RECORD_NAMESPACES 19155/19155 - nr_namespaces: 7 0 0 0x12b0b8 [0xa0]: PERF_RECORD_NAMESPACES 19155/19155 - nr_namespaces: 7 # Humm, investigate why we got two record for the 19155 pid/tid... Signed-off-by: Hari Bathini Tested-by: Arnaldo Carvalho de Melo Acked-by: Jiri Olsa Cc: Alexander Shishkin Cc: Alexei Starovoitov Cc: Ananth N Mavinakayanahalli Cc: Aravinda Prasad Cc: Brendan Gregg Cc: Daniel Borkmann Cc: Eric Biederman Cc: Peter Zijlstra Cc: Sargun Dhillon Cc: Steven Rostedt Link: http://lkml.kernel.org/r/148891931111.25309.11073854609798681633.stgit@hbathini.in.ibm.com Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info

2017-03-14T14:38:23Z

Introduce a new option to record PERF_RECORD_NAMESPACES events emitted by the kernel when fork, clone, setns or unshare are invoked. And update perf-record documentation with the new option to record namespace events. Committer notes: Combined it with a later patch to allow printing it via 'perf report -D' and be able to test the feature introduced in this patch. Had to move here also perf_ns__name(), that was introduced in another later patch. Also used PRIu64 and PRIx64 to fix the build in some enfironments wrt: util/event.c:1129:39: error: format '%lx' expects argument of type 'long unsigned int', but argument 6 has type 'long long unsigned int' [-Werror=format=] ret += fprintf(fp, "%u/%s: %lu/0x%lx%s", idx ^ Testing it: # perf record --namespaces -a ^C[ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 1.083 MB perf.data (423 samples) ] # # perf report -D 3 2028902078892 0x115140 [0xa0]: PERF_RECORD_NAMESPACES 14783/14783 - nr_namespaces: 7 [0/net: 3/0xf0000081, 1/uts: 3/0xeffffffe, 2/ipc: 3/0xefffffff, 3/pid: 3/0xeffffffc, 4/user: 3/0xeffffffd, 5/mnt: 3/0xf0000000, 6/cgroup: 3/0xeffffffb] 0x1151e0 [0x30]: event: 9 . . ... raw event: size 48 bytes . 0000: 09 00 00 00 02 00 30 00 c4 71 82 68 0c 7f 00 00 ......0..q.h.... . 0010: a9 39 00 00 a9 39 00 00 94 28 fe 63 d8 01 00 00 .9...9...(.c.... . 0020: 03 00 00 00 00 00 00 00 ce c4 02 00 00 00 00 00 ................ NAMESPACES events: 1 # Signed-off-by: Hari Bathini Acked-by: Jiri Olsa Tested-by: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: Alexei Starovoitov Cc: Ananth N Mavinakayanahalli Cc: Aravinda Prasad Cc: Brendan Gregg Cc: Daniel Borkmann Cc: Eric Biederman Cc: Peter Zijlstra Cc: Sargun Dhillon Cc: Steven Rostedt Link: http://lkml.kernel.org/r/148891930386.25309.18412039920746995488.stgit@hbathini.in.ibm.com Signed-off-by: Arnaldo Carvalho de Melo

perf record: Honor --quiet option properly

2017-02-20T14:50:36Z

It should call perf_quiet_option() to suppress messages. Signed-off-by: Namhyung Kim Cc: Jiri Olsa Cc: Peter Zijlstra Cc: kernel-team@lge.com Link: http://lkml.kernel.org/r/20170217081742.17417-7-namhyung@kernel.org [ Fix merge clash with 483635a9d080 ("perf record: Add -a as default target") ] Signed-off-by: Arnaldo Carvalho de Melo