* [Bug runtime/7043] New: Support unified trace buffer
@ 2008-11-21 13:32 mhiramat at redhat dot com
2008-12-24 0:55 ` [Bug runtime/7043] " mhiramat at redhat dot com
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: mhiramat at redhat dot com @ 2008-11-21 13:32 UTC (permalink / raw)
To: systemtap
Support unified trace buffer instead of relayfs, since relay will be replaced by it.
see kernel/trace/ring_buffer.c.
--
Summary: Support unified trace buffer
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: runtime
AssignedTo: systemtap at sources dot redhat dot com
ReportedBy: mhiramat at redhat dot com
OtherBugsDependingO 7042
nThis:
http://sourceware.org/bugzilla/show_bug.cgi?id=7043
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* [Bug runtime/7043] Support unified trace buffer
2008-11-21 13:32 [Bug runtime/7043] New: Support unified trace buffer mhiramat at redhat dot com
@ 2008-12-24 0:55 ` mhiramat at redhat dot com
2009-01-29 17:18 ` fche at redhat dot com
2009-01-30 2:16 ` fche at redhat dot com
2 siblings, 0 replies; 4+ messages in thread
From: mhiramat at redhat dot com @ 2008-12-24 0:55 UTC (permalink / raw)
To: systemtap
------- Additional Comments From mhiramat at redhat dot com 2008-12-23 22:43 -------
I think there might be another plan that stap generates ftrace-plug-in tracer
instead of using ring-buffer directly.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=7043
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* [Bug runtime/7043] Support unified trace buffer
2008-11-21 13:32 [Bug runtime/7043] New: Support unified trace buffer mhiramat at redhat dot com
2008-12-24 0:55 ` [Bug runtime/7043] " mhiramat at redhat dot com
@ 2009-01-29 17:18 ` fche at redhat dot com
2009-01-30 2:16 ` fche at redhat dot com
2 siblings, 0 replies; 4+ messages in thread
From: fche at redhat dot com @ 2009-01-29 17:18 UTC (permalink / raw)
To: systemtap
------- Additional Comments From fche at redhat dot com 2009-01-29 16:36 -------
*** Bug 9801 has been marked as a duplicate of this bug. ***
--
What |Removed |Added
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CC| |fche at redhat dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=7043
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* [Bug runtime/7043] Support unified trace buffer
2008-11-21 13:32 [Bug runtime/7043] New: Support unified trace buffer mhiramat at redhat dot com
2008-12-24 0:55 ` [Bug runtime/7043] " mhiramat at redhat dot com
2009-01-29 17:18 ` fche at redhat dot com
@ 2009-01-30 2:16 ` fche at redhat dot com
2 siblings, 0 replies; 4+ messages in thread
From: fche at redhat dot com @ 2009-01-30 2:16 UTC (permalink / raw)
To: systemtap
------- Additional Comments From fche at redhat dot com 2009-01-29 22:55 -------
Let's assess whether the ring buffer widget, or the larger control
structures around it in ftrace, are relevant/useful to systemtap.
We need at least:
- access to the ftrace buffering stuff from modules
- the ring buffers need to contain formatted ascii, since that is what scripts
produce, and not rely on subsequent trace_iter printing like current ftrace
engines; maybe reuse ftrace_printk
- per-script trace files (instead of /debugfs/tracing/trace intermingled) ...
unless some goofy multiplexing is the only way
- probably no connection with the overall control switch
/tracing/tracing_enabled), since scripts come and go at any time
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What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|systemtap at sources dot |dsmith at redhat dot com
|redhat dot com |
Status|NEW |ASSIGNED
http://sourceware.org/bugzilla/show_bug.cgi?id=7043
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2008-11-21 13:32 [Bug runtime/7043] New: Support unified trace buffer mhiramat at redhat dot com
2008-12-24 0:55 ` [Bug runtime/7043] " mhiramat at redhat dot com
2009-01-29 17:18 ` fche at redhat dot com
2009-01-30 2:16 ` fche at redhat dot com
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