search for: prstats

[Just starting out with DTrace and was hoping to get some guidance.] I have a "benchmark" program that I monitored with both prstat (prstat -mL -P <PID>) and pfilestat (from the DTrace toolkit). Prstat reports LAT values in the 0.1-0.2% range, but pfilestat reports "waitcpu" values in the 6-10%. Since those two numbers supposedly represent time waiting for the CPU,

I''m looking for a suggestion on a good way to hunt down the source of high context switching and mutex contentions... Is dtrace the way to go now, or should I stick with something like lockstat? Russ This is a 5 second interval for mpstat: CPU minf mjf xcal intr ithr csw icsw migr smtx srw syscl usr sys wt idl 16 0 0 1115 1241 206 9095 912 2420 7393 0 12105 68 25

Folks, Perplexing question about load average display with prstat -Z Solaris 10 OS U4 (08/07) We have 4 zones with very different processes and workloads.. The prstat -Z command issued within each of the zones, correctly displays the number of processes and lwps, but the load average value looks exactly the same on all non-global zones..I mean all 3 values (1,5,15 load averages) are the same

hello! First of all thank you for all your information you give us on this sites. It is a great help to learn for example dtrace. i''ve a little script in work, which shows the cpu utilization per process in percent. this output is refreshed every 2 seconds for example. now i want to extend this script with the output of the allocated bytes of memory per process. how could i display this

Hi world, I have a 10-disk RAID-Z2 system with 4 GB of DDR2 RAM and a 3 GHz Core 2 Duo. It''s exporting ~280 filesystems over NFS to about half a dozen machines. Under some loads (in particular, any attempts to rsync between another machine and this one over SSH), the machine''s load average sometimes goes insane (27+), and it appears to all be in kernel-land (as nothing in

Hello, Using one of Brendan''s dtrace script prusage and prstat, I was able to find the process that is consuming high cpu. I also have a test case that can trigger this high cpu usage. Questions are a) how do I proceed from here? b) how do I figure out which thread is using this high cpu? c) how do I figure out which piece of code is causing this problem? Thanks This message posted from

...ons to gIndex * Fixed ancient bug in lrm.fit Fortran code to handle case where initial estimates are nearly perfect (was trying to step halve); thanks: Dan Hogan * Changed survdiffplot to use gray(.85) for bands instead of gray(.95) * Fixed formatting problem in print.psm * Added prStats and reVector functions to rmsMisc.s * Changed formatting of all print.* functions for model fits to use new prStats function * Added latex=TRUE option to all model fit print methods; requires LaTeX package needspace * Re-wrote printing routines to make use of more general model *...

...ons to gIndex * Fixed ancient bug in lrm.fit Fortran code to handle case where initial estimates are nearly perfect (was trying to step halve); thanks: Dan Hogan * Changed survdiffplot to use gray(.85) for bands instead of gray(.95) * Fixed formatting problem in print.psm * Added prStats and reVector functions to rmsMisc.s * Changed formatting of all print.* functions for model fits to use new prStats function * Added latex=TRUE option to all model fit print methods; requires LaTeX package needspace * Re-wrote printing routines to make use of more general model *...

I have a SunRay server that I am looking at to determine some sizing requirements in my department. The machine has 16G of ram and 10G of swap. Currently, I have about 4G of swap used. I am wondering if dtrace/mdb can be used to find out what lwp/processes have been swapped out? Any hints? This message posted from opensolaris.org

Hi, I'm attempting to use the UPS network tools. I'm sure I got the configurations worked out as I get notified when the ups goes on battery and back online. I am having problems with upssched. I have the following in my upssched.conf: CMDSCRIPT /usr/local/ups/sbin/upssched-cmd AT ONBATT * EXECUTE onbatt The problem I have is that is seems like the script in CMDSCRIPT never gets

I am looking for Dtrace scripts that can be used to collect data during performance tests. I am especially interested in IO but CPU, memory, threads, etc are needed as well. Thanks, Dave

when check java process lock statistics, plockstat failed, please see below: # prstat -mLp 21162 PID USERNAME USR SYS TRP TFL DFL LCK SLP LAT VCX ICX SCL SIG PROCESS/LWPID 21162 7677 0.9 0.1 0.0 0.0 0.0 99 0.0 0.3 83 89 215 0 java/81 21162 7677 0.3 0.1 0.0 0.0 0.0 0.0 99 0.2 106 33 305 0 java/35 21162 7677 0.1 0.0 0.0 0.0 0.0 100 0.0 0.1 79 6 85 0 java/59

I've finally got it to work, kind of .. It should allow you to log in, but several settings don't work yet and there are probably many bugs. Anyway, I thought I'd show this already in case someone is interested of looking how it works :) One thing I'm still wondering a bit is if I should show process names as: 32602 pts/19 S 0:00 dovecot/config 32603 pts/19 S

Last April we put this in /etc/system on a T2000 server with large ZFS filesystems: set pg_contig_disable=1 This was while we were attempting to solve a couple of ZFS problems that were eventually fixed with an IDR. Since then, we''ve removed the IDR and brought the system up to Solaris 10 10/09 with current patches. It''s stable now, but seems slower. This line was a

Hi all, I have exchanged my Dell R610 in favor of a Sun Fire 4170 M2 which has 32 GB RAM installed. I am running Sol11Expr on this host and I use it to primarily serve Netatalk AFP shares. From day one, I have noticed that the amount of free RAM decereased and along with that decrease the overall performance of ZFS decreased as well. Now, since I am still quite a Solaris newbie, I seem to

...==> en/FAQ ===> en/handbook ===> en/internal ===> en/java ===> en/java/dists ===> en/java/docs ===> en/java/links ===> en/copyright ===> en/search ===> en/gallery ===> en/projects ===> en/projects/busdma ===> en/projects/c99 ===> en/projects/mips ===> en/prstats ===> en/platforms ===> en/platforms/ia64 ===> en/releases ===> en/releases/1.1 ===> en/releases/1.1.5 ===> en/releases/2.0 ===> en/releases/2.0.5R ===> en/releases/2.1R ===> en/releases/2.1.5R ===> en/releases/2.1.6R ===> en/releases/2.1.7R ===> en/releases/2.2R...

Howdy, Is there a method to get the number of elements in an aggregation? Are the results stored in an aggregation guaranteed to be in any type of order? Thanks for any insight, - Ryan -- UNIX Administrator http://daemons.net/~matty

Does anyone out there have any thoughts on the type of load common DTrace scripts would cause on a system if run 24x7? I know "common DTrace scripts" and their underlining probe calls a vague statement. So for the lack of a common and establish set of scripts in the OS, I''ll use the most popular right for my question...the DTraceToolkit from Brendan Gregg. Which by the

Hello, Sorry for the (very) long subject but I''ve pinpointed the problem to this exact situation. I know about the other threads related to hangs, but in my case there was no < zfs destroy > involved, nor any compression or deduplication. To make a long story short, when - a disk contains 2 partitions (p1=32GB, p2=1800 GB) and - p1 is used as part of a zfs mirror of rpool

I didn''t find any clear answer in the documentation, so here it goes: I''ve got a 4-device RAIDZ array in a pool. I then add another RAIDZ array to the pool. If one of the arrays fails, would all the data on the array be lost, or would it be like disc spanning, and only the data on the failed array be lost? Thanks in advance. This message posted from opensolaris.org