* [Bug translator/3217] New: compiled binary tracing
@ 2006-09-15 23:06 fche at redhat dot com
2006-09-19 14:57 ` [Bug translator/3217] " hunt at redhat dot com
2006-09-19 14:58 ` hunt at redhat dot com
0 siblings, 2 replies; 3+ messages in thread
From: fche at redhat dot com @ 2006-09-15 23:06 UTC (permalink / raw)
To: systemtap
Further to bug #2307 (binary tracing), and to the conversation on the mailing
list, let's teach the translator to expand printf()s to a sequence of binary
assignments into the trace buffer, when its analysis of the formatting string
suggests this is worthwhile. This could bypass stp_printf and its conditional
formatting string processing logic.
--
Summary: compiled binary tracing
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: translator
AssignedTo: systemtap at sources dot redhat dot com
ReportedBy: fche at redhat dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=3217
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* [Bug translator/3217] compiled binary tracing
2006-09-15 23:06 [Bug translator/3217] New: compiled binary tracing fche at redhat dot com
@ 2006-09-19 14:57 ` hunt at redhat dot com
2006-09-19 14:58 ` hunt at redhat dot com
1 sibling, 0 replies; 3+ messages in thread
From: hunt at redhat dot com @ 2006-09-19 14:57 UTC (permalink / raw)
To: systemtap
------- Additional Comments From hunt at redhat dot com 2006-09-19 14:57 -------
All the pieces are in place to do this. See _stp_reserve_bytes and
_stp_print_binary in runtime/print.c.
This will save < 100ns on a 3GHz Pentium when printing 5 binary numbers. So I
consider it a minor enhancement. For optimization with more potential impact,
see BZ 2339.
--
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |enhancement
Priority|P2 |P3
http://sourceware.org/bugzilla/show_bug.cgi?id=3217
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* [Bug translator/3217] compiled binary tracing
2006-09-15 23:06 [Bug translator/3217] New: compiled binary tracing fche at redhat dot com
2006-09-19 14:57 ` [Bug translator/3217] " hunt at redhat dot com
@ 2006-09-19 14:58 ` hunt at redhat dot com
1 sibling, 0 replies; 3+ messages in thread
From: hunt at redhat dot com @ 2006-09-19 14:58 UTC (permalink / raw)
To: systemtap
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |hunt at redhat dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=3217
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2006-09-15 23:06 [Bug translator/3217] New: compiled binary tracing fche at redhat dot com
2006-09-19 14:57 ` [Bug translator/3217] " hunt at redhat dot com
2006-09-19 14:58 ` hunt at redhat dot com
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