* [Bug runtime/18848] New: new --monitor option
@ 2015-08-18 13:44 fche at redhat dot com
2015-08-18 14:39 ` [Bug runtime/18848] " dsmith at redhat dot com
2015-09-09 18:14 ` flu at redhat dot com
0 siblings, 2 replies; 3+ messages in thread
From: fche at redhat dot com @ 2015-08-18 13:44 UTC (permalink / raw)
To: systemtap
https://sourceware.org/bugzilla/show_bug.cgi?id=18848
Bug ID: 18848
Summary: new --monitor option
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: runtime
Assignee: systemtap at sourceware dot org
Reporter: fche at redhat dot com
Target Milestone: ---
As a part of the interactive-systemtap effort, we'd like to have a way of
compiling stap modules so that they can report on their own status, and give a
way to control them from the outside.
For example, a new option "stap --monitor" could emit extra code into the
module, so that:
- it presents a procfs interface by which stats like this are available:
- module name, invoker uid, sizes (as per startup dmesg)
- number of warnings, errors; maybe text of recent errors
- list of global variables (incl. array sizes)
- abbreviated list of probes (incl. hit count/times as per stap -t)
- it presents another procfs interface by which control may be exercised:
- to disable or enable probes (as if by hidden on-the-fly control variables)
- to reset the global variables (so as to start the script anew)
- to exit the script
Then the stapio program can connect to those two proc interfaces, poll the
former to display, map keyboard inputs for sending to the other. (The stap
--interactive front-end can later also do the same.)
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* [Bug runtime/18848] new --monitor option
2015-08-18 13:44 [Bug runtime/18848] New: new --monitor option fche at redhat dot com
@ 2015-08-18 14:39 ` dsmith at redhat dot com
2015-09-09 18:14 ` flu at redhat dot com
1 sibling, 0 replies; 3+ messages in thread
From: dsmith at redhat dot com @ 2015-08-18 14:39 UTC (permalink / raw)
To: systemtap
https://sourceware.org/bugzilla/show_bug.cgi?id=18848
David Smith <dsmith at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |dsmith at redhat dot com
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^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug runtime/18848] new --monitor option
2015-08-18 13:44 [Bug runtime/18848] New: new --monitor option fche at redhat dot com
2015-08-18 14:39 ` [Bug runtime/18848] " dsmith at redhat dot com
@ 2015-09-09 18:14 ` flu at redhat dot com
1 sibling, 0 replies; 3+ messages in thread
From: flu at redhat dot com @ 2015-09-09 18:14 UTC (permalink / raw)
To: systemtap
https://sourceware.org/bugzilla/show_bug.cgi?id=18848
Felix Lu <flu at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |flu at redhat dot com
Assignee|systemtap at sourceware dot org |flu at redhat dot com
--
You are receiving this mail because:
You are the assignee for the bug.
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2015-09-09 18:14 ` flu at redhat dot com
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