* detailed Warning informatoin output
@ 2006-01-17 9:59 Mao, Bibo
2006-01-17 19:46 ` Frank Ch. Eigler
0 siblings, 1 reply; 3+ messages in thread
From: Mao, Bibo @ 2006-01-17 9:59 UTC (permalink / raw)
To: SystemTAP
Hi,
Sometimes when system is heavy load or there are many trace points,
there will be some WARNING information like this:
WARNING: Number of errors: 0, skipped probes: 2141
And I do know whether the WARNING information can be formatted output
more detailed. For example, for skipped probes, for kprobe, kprobe trace
point is printed; and for kretprobe, kretprobe trace point and function
name is printed. And sometime it is benefit for us to analyze
kprobe/kretprobe.
Regards
Bibo,mao
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: detailed Warning informatoin output
2006-01-17 9:59 detailed Warning informatoin output Mao, Bibo
@ 2006-01-17 19:46 ` Frank Ch. Eigler
0 siblings, 0 replies; 3+ messages in thread
From: Frank Ch. Eigler @ 2006-01-17 19:46 UTC (permalink / raw)
To: Mao, Bibo; +Cc: systemtap
bibo.mao@intel.com wrote:
> [...]
> WARNING: Number of errors: 0, skipped probes: 2141
> And I do know whether the WARNING information can be formatted output
> more detailed. [...]
Yes, that could be nice to have. One problem with more information is
that skipped probes occur in situations where there is little time and
space available to safely store it.
- FChE
^ permalink raw reply [flat|nested] 3+ messages in thread
* RE: detailed Warning informatoin output
@ 2006-01-18 1:28 Mao, Bibo
0 siblings, 0 replies; 3+ messages in thread
From: Mao, Bibo @ 2006-01-18 1:28 UTC (permalink / raw)
To: fche; +Cc: systemtap
Maybe the skipped probe information can be output when systemtap exits, and when unregistering kprobe/kretprobe this information can be output. Of course there is other reason kprobe is skipped, but currently I think missed kprobe/kretprobe should be focused on.
Regards
Bibo,mao
>-----Original Message-----
>From: fche@redhat.com [mailto:fche@redhat.com]
>Sent: 2006年1月18日 3:46
>To: Mao, Bibo
>Cc: systemtap@sources.redhat.com
>Subject: Re: detailed Warning informatoin output
>
>
>bibo.mao@intel.com wrote:
>
>> [...]
>> WARNING: Number of errors: 0, skipped probes: 2141
>> And I do know whether the WARNING information can be formatted output
>> more detailed. [...]
>
>Yes, that could be nice to have. One problem with more information is
>that skipped probes occur in situations where there is little time and
>space available to safely store it.
>
>- FChE
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2006-01-18 1:28 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2006-01-17 9:59 detailed Warning informatoin output Mao, Bibo
2006-01-17 19:46 ` Frank Ch. Eigler
2006-01-18 1:28 Mao, Bibo
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).