similar to: DIF content is invalid?

I am teaching a DTrace class and a student noticed that 2 iosnoop scripts run in two different windows were producing different results. I was not able to answer why this is. Can anyone explain this. Here are the reults from the two windows: # io.d ... sched 0 <none> 1024 dad1 W 0.156 bash 1998

The following script is used as a first attempt to discover IO patterns in a dbase setup: #------------------------------------------------------------------ #pragma D option dynvarsize=128m dtrace:::BEGIN { } pid$target::kaio:entry { self->doit = 1; } pid$target::_aiodone:return { self->doit = 0; } io:::start /self->doit || execname == "oracle"/ {

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

Hello, I use Brendan''s sysperfstat script to see the overall system performance and found the the disk utilization is over 100: 15:51:38 14.52 15.01 200.00 24.42 0.00 0.00 83.53 0.00 15:51:42 11.37 15.01 200.00 25.48 0.00 0.00 88.43 0.00 ------ Utilisation ------ ------ Saturation ------ Time %CPU %Mem %Disk %Net CPU Mem

Hello, I can see that there is an implementation/emulation of ddi_pathname in DTrace, but I''m a bit confused about the capabilities and invocation of this function. I would like to diplay the path to the block device from bdev_strategy and other io:genunix::start probes. If someone is familiar with ddi_pathname, could you please provide an example invocation? Thanks, Michael This

i''m running the following script: #pragma D option quiet profile:::tick-1sec / ++x >= 15 / { exit(0); } io:::start { @io_size[execname] = sum(args[0]->b_bcount); } on exit, the script prints out the value of @io_size, why? there''s no printa(), and i also specified "D option quiet" (i also tried -q). this seems to happen with any kind of probe: on exit(0) all

Hi all, I don''t know if you''re familiar with recoll, it''s a very handy xapian based desktop search engine system. I''m trying to index a really big folder containing lots of files (18M), the disk size is ~220Gig. The files are quite small text files (mean size ~ 1K). The OS is latest leopard. I think the process is io-bound. 63061 recollinde 10.4% 3:58:06

Hi all, How to dtrace a who is writing a veritas volume? Thanks. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20070412/dfd8c254/attachment.html>

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ Caldera International, Inc. Security Advisory Subject: Linux - sendmail instant root exploit Advisory number: CSSA-2001-032.0 Issue date: 2001, August 24 Cross reference: ______________________________________________________________________________ 1. Problem