* [Bug bpf/27877] New: Missing -t timing stats support in the bpf backend
@ 2021-05-17 18:50 agentzh at gmail dot com
2023-01-13 11:38 ` [Bug bpf/27877] " dichen at redhat dot com
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: agentzh at gmail dot com @ 2021-05-17 18:50 UTC (permalink / raw)
To: systemtap
https://sourceware.org/bugzilla/show_bug.cgi?id=27877
Bug ID: 27877
Summary: Missing -t timing stats support in the bpf backend
Product: systemtap
Version: unspecified
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: bpf
Assignee: systemtap at sourceware dot org
Reporter: agentzh at gmail dot com
Target Milestone: ---
Currently the bpf backend lacks probe timing stats enabled by the `-t` CLI
option, as evidenced by the following example:
```
$ /opt/stap/bin/stap -t --bpf -e 'probe oneshot { println("Hello world") }'
Hello world
```
For comparison, the default kernel backend runs fine:
```
$ /opt/stap/bin/stap -t -e 'probe oneshot { println("Hello world") }'
Hello world
----- probe hit report:
begin, (<input>:1:7), hits: 1, cycles: 2880min/2880avg/2880max, variance: 0,
from: oneshot from: oneshot, index: 0
----- refresh report:
```
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* [Bug bpf/27877] Missing -t timing stats support in the bpf backend
2021-05-17 18:50 [Bug bpf/27877] New: Missing -t timing stats support in the bpf backend agentzh at gmail dot com
@ 2023-01-13 11:38 ` dichen at redhat dot com
2023-01-14 19:13 ` agentzh at gmail dot com
2023-02-06 14:27 ` dichen at redhat dot com
2 siblings, 0 replies; 4+ messages in thread
From: dichen at redhat dot com @ 2023-01-13 11:38 UTC (permalink / raw)
To: systemtap
https://sourceware.org/bugzilla/show_bug.cgi?id=27877
Di Chen <dichen at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |dichen at redhat dot com
--- Comment #1 from Di Chen <dichen at redhat dot com> ---
Hey agentzh,
can I pick this issue?
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* [Bug bpf/27877] Missing -t timing stats support in the bpf backend
2021-05-17 18:50 [Bug bpf/27877] New: Missing -t timing stats support in the bpf backend agentzh at gmail dot com
2023-01-13 11:38 ` [Bug bpf/27877] " dichen at redhat dot com
@ 2023-01-14 19:13 ` agentzh at gmail dot com
2023-02-06 14:27 ` dichen at redhat dot com
2 siblings, 0 replies; 4+ messages in thread
From: agentzh at gmail dot com @ 2023-01-14 19:13 UTC (permalink / raw)
To: systemtap
https://sourceware.org/bugzilla/show_bug.cgi?id=27877
--- Comment #2 from agentzh <agentzh at gmail dot com> ---
Di Che, sure, go ahead.
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* [Bug bpf/27877] Missing -t timing stats support in the bpf backend
2021-05-17 18:50 [Bug bpf/27877] New: Missing -t timing stats support in the bpf backend agentzh at gmail dot com
2023-01-13 11:38 ` [Bug bpf/27877] " dichen at redhat dot com
2023-01-14 19:13 ` agentzh at gmail dot com
@ 2023-02-06 14:27 ` dichen at redhat dot com
2 siblings, 0 replies; 4+ messages in thread
From: dichen at redhat dot com @ 2023-02-06 14:27 UTC (permalink / raw)
To: systemtap
https://sourceware.org/bugzilla/show_bug.cgi?id=27877
Di Chen <dichen at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|systemtap at sourceware dot org |dichen at redhat dot com
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You are receiving this mail because:
You are the assignee for the bug.
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end of thread, other threads:[~2023-02-06 14:27 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2021-05-17 18:50 [Bug bpf/27877] New: Missing -t timing stats support in the bpf backend agentzh at gmail dot com
2023-01-13 11:38 ` [Bug bpf/27877] " dichen at redhat dot com
2023-01-14 19:13 ` agentzh at gmail dot com
2023-02-06 14:27 ` dichen at redhat dot com
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