SystemTAP GUI Update Released

SystemTAP GUI Update Released

[Brad Peters]

The SystemTAP GUI Speed-team, Rachel and Patrick, have been working hard to
improve on last years project.  An early release, primarily consisting of
modifications necessary to work with Eclipse 3.2 and some stability
enhancements, is now available at:

http://sourceforge.net/projects/stapgui/

Stay tuned for much bigger changes in coming months!


SystemTAP GUI:

Systemtap GUI is a tool developed to assist people who wish to understand what
their system is doing, through the creation of SystemTap scripts.

A SystemTap script can be used to probe into the Linux kernel, monitoring
various system activities and providing information that is traditionally
available only to the individual thread/process.  Collected information is
available painlessly in user-space, through a simple C-like printf() , for any
type of error checking, debug, trace or whatever other type of application one
can think of.

Example script:

>>>>
#! /usr/bin/env stap

# Using statistics to examine kernel memory allocations

global kmalloc

probe kernel.function("__kmalloc") {
	kmalloc <<< $size
}

# Exit after 10 seconds
probe timer.ms(10000) { exit () }

probe end {
	printf("Count:   %d allocations\n", @count(kmalloc))
	printf("Sum:     %d Kbytes\n", @sum(kmalloc)/1000)
	printf("Average: %d bytes\n", @avg(kmalloc))
	printf("Min:     %d bytes\n", @min(kmalloc))
	printf("Max:     %d bytes\n", @max(kmalloc))	
	print("\nAllocations by size in bytes\n")
	print(@hist_log(kmalloc))
}
<<<<


Best regards,

Brad Peters

IBM
Linux RAS Engineer
IBM Linux Technology Center

Re: SystemTAP GUI Update Released

[Stone, Joshua I]

Brad Peters wrote:
> The SystemTAP GUI Speed-team, Rachel and Patrick, have been working hard to
> improve on last years project.  An early release, primarily consisting of
> modifications necessary to work with Eclipse 3.2 and some stability
> enhancements, is now available at:
> 
> http://sourceforge.net/projects/stapgui/
> 
> Stay tuned for much bigger changes in coming months!

Will -- can we make room to get this on the live CD for OLS?  We may not 
have time to do much with it in the tutorial, but we can at least 
mention it and include it for people to play with.

Josh

Re: SystemTAP GUI Update Released

[William Cohen]

Stone, Joshua I wrote:
> Brad Peters wrote:
>> The SystemTAP GUI Speed-team, Rachel and Patrick, have been working 
>> hard to
>> improve on last years project.  An early release, primarily consisting of
>> modifications necessary to work with Eclipse 3.2 and some stability
>> enhancements, is now available at:
>>
>> http://sourceforge.net/projects/stapgui/
>>
>> Stay tuned for much bigger changes in coming months!
> 
> Will -- can we make room to get this on the live CD for OLS?  We may not 
> have time to do much with it in the tutorial, but we can at least 
> mention it and include it for people to play with.
> 
> Josh

Stapgui Needs to be an RPM to put on the live CD. There isn't a great deal of 
space on the liveCD for the tutorial, about 30MB. The need for eclipse is 
probably going to push it over the limit 700MB limit for CDs.

-Will