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...travel), let me post about a couple of new scripts. I''ve just uploaded them to http://www.brendangregg.com/dtrace.html. They are to profile user-level functions and libaries; and kernel-level functions and modules. They sample, rather than trace (which can be both good and bad). Here is hotuser sampling functions from a gunzip command, # ./hotuser -c ''gunzip contents.gz'' Sampling... Hit Ctrl-C to end. FUNCTION COUNT PCNT libc.so.1`_free_unlocked 1 0.1% gunzip`unzip...

Incase of multi-core systems where multiple threads maybe scheduled for execution, does the below dscript (from hotuser in DTraceToolkit) collect information for multiple libraries/functions that would be getting executed at a given point of time. I have been able to test it to check if it does or doesn''t. I assume it does. This was a query I have about profiling in general. #pragma D option quiet profi...

Is there any work on keeping DTraceTools up to date with the latest snv builds. These scripts are pretty useful and help get a novice dtrace user like me doing useful work quickly. Specifically the tcp stack tools like tcptop and tcpsnoop don''t work with later OpenSolaris builds. Thanks, Gary -- This message posted from opensolaris.org

I see Intel has released a new tool. Oh, it requires some patches to the kernel to record latency times. Good thing people don''t mind patching their kernels, eh? So who can write the equivalent latencytop.d the fastest? ;-) http://www.latencytop.org/ -- cburgess at qnx.com