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Does anyone has any ideas about this problem? 2008/1/15, ?? TaoJie <eulertao at gmail.com>: > > Hi all: > > I''m working on revealing system performance now. > My testing program is an infinite loop. Inside the loop, it will do some > mathematical opertaions and call function callee(), then go to the next > loop. > I install a alarm(30) in...

Hi all: Can dtrace trouble-shoot the MPI porgrams (HPC programs)? Does there exist an extension on dtrace to debug MPI program? If exist, then where can I find the how-to documentations? Thanks in advance? Regards TJ -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi, In Solairs Dtrace User Guide, page 193, it lists the arguments of ERROR probe. One of these arguments is arg3, it is explained as "The DIF offset into that action or -1 if not applicable". Then what does the abbr. DIF mean? Regards TJ

Hi All, Is there a simple way to list all currently open file descriptors ? TIA.. Regards, Venkat -- This message posted from opensolaris.org

Hi All: Why are floating-point operators not supported in D Language? Because they are useless in tracing programs? Regards! TJ -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/dtrace-discuss/attachments/20070305/a0b4cf0e/attachment.html>

Dear all, What does <DYN> (or say "dynamic node" that is generated by paser and used by cg in compilation stage) represent? What are the corresponding D lanauge futures of this? Any examples? TIA! Regards, TJ -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi All: In Solaris Dtrace User Guide, page 218, it says, "Functions that do not create a stack frame on x86 systems cannot be instrumented by FBT." Then what are these functions? What characteristics do they have? Regards TJ

Dear all: In dtrace.c, function dtrace_probe_create(), there''re a piece of code: id = (dtrace_id_t)(uintptr_t)vmem_alloc(dtrace_arena, 1, VM_BESTFIT | VM_SLEEP); id is uint32_t, and I think id is used as an index to array dtrace_probes[] but why not just use id = cur_value + 1, cur_value is a global variable to record the lastest id? Is this a trick? for what? Thanks :)