* perf list tracepoints problem
@ 2015-06-19 16:19 Arnaldo Carvalho de Melo
2015-06-19 16:51 ` Steven Rostedt
0 siblings, 1 reply; 3+ messages in thread
From: Arnaldo Carvalho de Melo @ 2015-06-19 16:19 UTC (permalink / raw)
To: Steven Rostedt; +Cc: Jiri Olsa, Linux Kernel Mailing List
Hi,
Have you guys ever saw this:
[root@perf4 ~]# perf list
<SKIP>
mem:<addr>[:access] [Hardware
breakpoint]
[ Tracepoints not available: Success ]
[root@perf4 ~]# uname -r
4.1.0-rc8
[root@perf4 ~]# mount | grep tracefs
tracefs on /sys/kernel/debug/tracing type tracefs (rw,relatime)
[root@perf4 ~]# mount | grep debugfs
debugfs on /sys/kernel/debug type debugfs (rw,relatime,seclabel)
[root@perf4 ~]#
[root@zoo ~]# ls -la /sys/kernel/debug/tracing/events/ | tail
drwxr-xr-x. 15 root root 0 Jun 17 10:47 timer
drwxr-xr-x. 3 root root 0 Jun 17 10:47 tlb
drwxr-xr-x. 3 root root 0 Jun 17 10:47 udp
drwxr-xr-x. 4 root root 0 Jun 17 10:47 v4l2
drwxr-xr-x. 17 root root 0 Jun 17 10:47 vmscan
drwxr-xr-x. 3 root root 0 Jun 17 10:47 vsyscall
drwxr-xr-x. 6 root root 0 Jun 17 10:47 workqueue
drwxr-xr-x. 31 root root 0 Jun 17 10:47 writeback
drwxr-xr-x. 37 root root 0 Jun 17 10:47 xen
drwxr-xr-x. 11 root root 0 Jun 17 10:47 xhci-hcd
[root@zoo ~]#
?
Just a heads up, will continue investigating after some food...
- Arnaldo
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* Re: perf list tracepoints problem
2015-06-19 16:19 perf list tracepoints problem Arnaldo Carvalho de Melo
@ 2015-06-19 16:51 ` Steven Rostedt
2015-06-19 18:51 ` Arnaldo Carvalho de Melo
0 siblings, 1 reply; 3+ messages in thread
From: Steven Rostedt @ 2015-06-19 16:51 UTC (permalink / raw)
To: Arnaldo Carvalho de Melo; +Cc: Jiri Olsa, Linux Kernel Mailing List
On Fri, 19 Jun 2015 13:19:53 -0300
Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
> Hi,
>
> Have you guys ever saw this:
>
> [root@perf4 ~]# perf list
> <SKIP>
> mem:<addr>[:access] [Hardware
> breakpoint]
>
> [ Tracepoints not available: Success ]
> [root@perf4 ~]# uname -r
> 4.1.0-rc8
> [root@perf4 ~]# mount | grep tracefs
> tracefs on /sys/kernel/debug/tracing type tracefs (rw,relatime)
> [root@perf4 ~]# mount | grep debugfs
> debugfs on /sys/kernel/debug type debugfs (rw,relatime,seclabel)
> [root@perf4 ~]#
>
> [root@zoo ~]# ls -la /sys/kernel/debug/tracing/events/ | tail
> drwxr-xr-x. 15 root root 0 Jun 17 10:47 timer
> drwxr-xr-x. 3 root root 0 Jun 17 10:47 tlb
> drwxr-xr-x. 3 root root 0 Jun 17 10:47 udp
> drwxr-xr-x. 4 root root 0 Jun 17 10:47 v4l2
> drwxr-xr-x. 17 root root 0 Jun 17 10:47 vmscan
> drwxr-xr-x. 3 root root 0 Jun 17 10:47 vsyscall
> drwxr-xr-x. 6 root root 0 Jun 17 10:47 workqueue
> drwxr-xr-x. 31 root root 0 Jun 17 10:47 writeback
> drwxr-xr-x. 37 root root 0 Jun 17 10:47 xen
> drwxr-xr-x. 11 root root 0 Jun 17 10:47 xhci-hcd
> [root@zoo ~]#
>
> ?
>
> Just a heads up, will continue investigating after some food...
>
Running the older perf that ignores tracepoints not on the debugfs
system?
-- Steve
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: perf list tracepoints problem
2015-06-19 16:51 ` Steven Rostedt
@ 2015-06-19 18:51 ` Arnaldo Carvalho de Melo
0 siblings, 0 replies; 3+ messages in thread
From: Arnaldo Carvalho de Melo @ 2015-06-19 18:51 UTC (permalink / raw)
To: Steven Rostedt; +Cc: Jiri Olsa, Linux Kernel Mailing List
Em Fri, Jun 19, 2015 at 12:51:04PM -0400, Steven Rostedt escreveu:
> On Fri, 19 Jun 2015 13:19:53 -0300
> Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
>
> > Hi,
> >
> > Have you guys ever saw this:
> >
> > [root@perf4 ~]# perf list
> > <SKIP>
> > mem:<addr>[:access] [Hardware
> > breakpoint]
> >
> > [ Tracepoints not available: Success ]
> > [root@perf4 ~]# uname -r
> > 4.1.0-rc8
> > [root@perf4 ~]# mount | grep tracefs
> > tracefs on /sys/kernel/debug/tracing type tracefs (rw,relatime)
> > [root@perf4 ~]# mount | grep debugfs
> > debugfs on /sys/kernel/debug type debugfs (rw,relatime,seclabel)
> > [root@perf4 ~]#
> >
> > [root@zoo ~]# ls -la /sys/kernel/debug/tracing/events/ | tail
> > drwxr-xr-x. 15 root root 0 Jun 17 10:47 timer
> > drwxr-xr-x. 3 root root 0 Jun 17 10:47 tlb
> > drwxr-xr-x. 3 root root 0 Jun 17 10:47 udp
> > drwxr-xr-x. 4 root root 0 Jun 17 10:47 v4l2
> > drwxr-xr-x. 17 root root 0 Jun 17 10:47 vmscan
> > drwxr-xr-x. 3 root root 0 Jun 17 10:47 vsyscall
> > drwxr-xr-x. 6 root root 0 Jun 17 10:47 workqueue
> > drwxr-xr-x. 31 root root 0 Jun 17 10:47 writeback
> > drwxr-xr-x. 37 root root 0 Jun 17 10:47 xen
> > drwxr-xr-x. 11 root root 0 Jun 17 10:47 xhci-hcd
> > [root@zoo ~]#
> >
> > ?
> >
> > Just a heads up, will continue investigating after some food...
> >
>
> Running the older perf that ignores tracepoints not on the debugfs
> system?
Right, I thought I was, but there was a perf-3.10...rpm installed that
was being used instead of my ~/bin/perf new binary, removed the rpm and
it lists the tracepoints now, should've used 'perf --version' before
hitting the send button, sorry about that.
- Arnaldo
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