* [Bug translator/10786] New: oversensitive overload detection
@ 2009-10-16 12:15 fche at redhat dot com
2010-04-17 15:23 ` [Bug translator/10786] " fche at redhat dot com
0 siblings, 1 reply; 2+ messages in thread
From: fche at redhat dot com @ 2009-10-16 12:15 UTC (permalink / raw)
To: systemtap
There have been several reports that the overload detection logic
(see -DNO_STP_OVERLOAD) is too sensitive. Currently we don't have
good diagnostics, perhaps just -t. We need to figure out why it's
triggering more than before - probably due to default interruptibility -
and what this implies for the parameters.
--
Summary: oversensitive overload detection
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=10786
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* [Bug translator/10786] oversensitive overload detection
2009-10-16 12:15 [Bug translator/10786] New: oversensitive overload detection fche at redhat dot com
@ 2010-04-17 15:23 ` fche at redhat dot com
0 siblings, 0 replies; 2+ messages in thread
From: fche at redhat dot com @ 2010-04-17 15:23 UTC (permalink / raw)
To: systemtap
------- Additional Comments From fche at redhat dot com 2010-04-16 21:21 -------
Idea: on modern kernels, attach to the irq_handler_entry / softirq_entry?
traceponts to detect whether an interruptible probe handler was in fact
interrupted, and if so, discount its contribution to the overload budget.
--
What |Removed |Added
----------------------------------------------------------------------------
Summary|oversensitive overload |oversensitive overload
|detection |detection
http://sourceware.org/bugzilla/show_bug.cgi?id=10786
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