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[Bug translator/6902] New: optimize use of elfutils offline module search
- From: "fche at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 18 Sep 2008 10:01:30 -0000
- Subject: [Bug translator/6902] New: optimize use of elfutils offline module search
- Reply-to: sourceware-bugzilla at sourceware dot org
A probe such as 'probe kernel.function("foo") {}' currently
performs a full offline module search, which for a combined
kernel object/source tree can take a noticeable amount of time
(and inode cache space). It's wasted effort.
See also bug #3498, but maybe we can get away with not using
a clever report_kernel_offline predicate function, but rather
perhaps we can do a single dwfl report per named module, and
save the resulting dwfl into a cache - like we do for userspace
dwfl's already.
--
Summary: optimize use of elfutils offline module search
Product: systemtap
Version: unspecified
Status: NEW
Severity: minor
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=6902
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