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Author SHA1 Message Date
Sasha Goldshtein
b41b1cd3b8 funcslower: Make -p switch respect all the process' threads 
The -p switch used to set the `set_ftrace_pid` file, which is really
a thread id from the user's perspective. As a result, only the main
thread would be traced. Fix by enumerating the thread ids from /proc/
$pid/task and putting them all in `set_ftrace_pid` when asked.

Signed-off-by: Sasha Goldshtein <goldshtn@gmail.com>
 2017-09-04 09:36:38 -04:00
Brendan Gregg
5a511f5f77 update URL v1.0 2016-04-17 15:57:13 -07:00
Brendan Gregg
29f192d0a2 tools map 2016-04-17 15:55:40 -07:00
Brendan Gregg
0c13e83723 link to newer eBPF/bcc tools 2015-09-19 22:40:38 -07:00
Brendan Gregg
5a2c24587b Merge pull request #36 from DiegoPomares/patch-1 
Added filters
 2015-08-07 15:50:45 -07:00
Diego Pomares
0eb3456a91 Added filters 
The only thing missing is the capability of adding filters, example:

# ... synchronous writes histogram, 5 seconds
perf-stat-hist -f 'rwbs == "WS"' block:block_rq_complete nr_sector 5
 2015-08-06 13:38:44 +02:00
Brendan Gregg
94b23cc96c links 2015-07-26 10:50:26 -07:00
Brendan Gregg
80e25785e1 Merge pull request #33 from rgulewich/master 
Add lsblk to the "See Also" section
 2015-07-23 10:49:08 -07:00
Brendan Gregg
3e05a2de72 Merge pull request #28 from ronin13/syscount-fix 
syscount: Fix for perf list and perf script.
 2015-07-23 10:48:04 -07:00
Rob Gulewich
4047d0f306 Add lsblk to the "See Also" section 2015-07-21 16:43:05 -07:00
Brendan Gregg
b6c75ffb5e kprobe USAGE message update 2015-07-14 11:52:39 -07:00
Brendan Gregg
06aa0eb988 USAGE message 2015-07-11 11:58:54 -07:00
Raghavendra D Prabhu
56edb4e321 syscount: Fix for perf list and perf script. 
perf list adds the header 'List of ..' which requires to be filtered,
otherwise follow up commands fail.

perf script has had its option for fields changed from '-f' to '-F' in
recent perf. Hence, using longer option for compatibility.
 2015-07-05 18:43:46 +05:30
Brendan Gregg
30ff475891 avoid listing symbol duplicates 2015-07-02 19:26:28 -07:00
Brendan Gregg
f3eee1f894 mysqld example 2015-07-02 16:36:10 -07:00
Brendan Gregg
e2be680480 handle missing dependencies 2015-07-02 15:36:41 -07:00
Brendan Gregg
e2dc944e78 warning message 2015-07-02 15:27:47 -07:00
Brendan Gregg
e203ba8c62 improve error messages, and better symbol match 2015-07-02 15:12:07 -07:00
Brendan Gregg
2be3c8d079 improve warnings 2015-07-01 12:06:34 -07:00
Brendan Gregg
5103491a8c synopsis 2015-06-29 12:53:35 -07:00
Brendan Gregg
952b85ef56 comment 2015-06-29 12:50:34 -07:00
Brendan Gregg
e1e25a0d6d link 2015-06-29 11:58:42 -07:00
Brendan Gregg
ab991efaa9 more uprobe examples 2015-06-29 00:48:19 -07:00
Brendan Gregg
d1bd15c601 wrong comment 2015-06-29 00:01:13 -07:00
Brendan Gregg
d626d3699e use objdump to find base load addr instead of needing a live process 2015-06-28 19:41:11 -07:00
Brendan Gregg
71086ef90b uprobe for user-level tracing 2015-06-28 13:48:29 -07:00
Brendan Gregg
b4e8f3802c usage message improvement, and drop printing probe name unless debug mode 2015-06-27 17:21:50 -07:00
Brendan Gregg
5ea7fd3975 Merge pull request #26 from yangoliver/master 
bitesize: work with different versions of awk and bash
 2015-06-27 16:43:14 -07:00
Yong Yang
7431cc024f bitesize: work with different versions of awk and bash 
This patch tries to fix following bitesize issues,

1. Error flooding messages when array index value is negative.
2. the smax in gawk was treated as string, that cause bug when
   perf return zero IO count.

Signed-off-by: Yong Yang <yangoliver@gmail.com>
 2015-06-06 23:24:01 +08:00
Brendan Gregg
85414b0124 Merge pull request #20 from yangoliver/cmdline 
Replace split by sub to get pid
 2015-01-30 10:36:29 -08:00
Oliver Yang
cea905d417 Replace split by sub to get pid 
Signed-off-by: Oliver Yang <yangoliver@gmail.com>
 2015-01-29 01:12:48 -08:00
Brendan Gregg
522d0d9291 Merge pull request #19 from yangoliver/cmdline 
awk scirpt can't work if process name contains space
 2015-01-28 10:25:14 -08:00
Oliver Yang
c20539a1ad awk scirpt can't work if process name contains space 
Signed-off-by: Oliver Yang <yangoliver@gmail.com>
 2015-01-28 06:40:07 -08:00
Brendan Gregg
feeefeba7b Merge pull request #17 from yangoliver/killsnoop 
killsnoop: can't work with mawk
 2015-01-19 11:56:47 -08:00
Oliver Yang
a52538f823 killsnoop: can't work with mawk 
On Ubuntu Linux release, mawk is used by default. This issue caused
killsnoop can't work on Ubuntu by default.

There are two issues,
    a. The strtonum is not supported by mawk.
       Try to use int to convert string to number.
       For gawk, int usage need the --non-decimal-data option.
       On very old RHEL release(2.6.18 kernel), the gawk can support
       this option.
    b. killsnoop still has no results due to mawk buffering porblems.
       Using -W interactive could solve this isue.
       The option is available on mawk 1.2, RHEL 4+ should support it.

Signed-off-by: Oliver Yang <yangoliver@gmail.com>
 2015-01-17 02:24:34 -08:00
Brendan Gregg
27d206f9d4 Merge pull request #14 from g2p/master 
execsnoop: Instrument sys_execve first
 2015-01-05 13:54:30 +11:00
Brendan Gregg
41fe778cd3 cachestat for page cache statistics 2015-01-02 11:54:12 +09:30
Brendan Gregg
21ee61e151 typo 2014-12-20 14:01:14 +11:00
Brendan Gregg
0494f41433 formatting 2014-12-16 13:05:26 -08:00
Brendan Gregg
9c1615d11e warn about Linux 2.6.x kernels 2014-12-16 13:00:49 -08:00
Gabriel
50893c8b8f execsnoop: Instrument sys_execve first 
On my kernel (3.16 amd64), stub_execve can't be instrumented, and
do_execve gets instrumented but fails silently (no events are caught).

Print which implementation is used.
Make sure do_execve is tried last due to silent failures.
 2014-12-16 16:18:07 +01:00
Brendan Gregg
eda43a5179 another execsnoop example 2014-12-16 02:30:50 -08:00
Brendan Gregg
2dd02b6f36 skip control files (filter/enable) in tpoint -l 2014-11-14 22:41:16 -08:00
Brendan Gregg
5fb0a4a6e4 usage message typos 2014-11-14 22:34:04 -08:00
Brendan Gregg
2c05860ca6 Merge pull request #11 from pyKun/add_sys_execue 
add sys_execve to inspect
 2014-11-13 21:10:44 -08:00
Kun Huang
312ca53529 add sys_execve to inspect 2014-11-14 02:20:39 +08:00
Brendan Gregg
2eb08cf55c Merge pull request #10 from mpiehl/master 
Fixed a couple minor documentation issues
 2014-09-29 10:29:22 -07:00
mpiehl
e2d127db23 Fixed a couple minor documentation issues 2014-09-28 20:29:40 -05:00
Brendan Gregg
3d4c80998c edit 2014-09-20 00:44:38 -07:00
Brendan Gregg
2462d9570d edits 2014-09-20 00:41:54 -07:00