similar to: sched provider

Displaying 20 results from an estimated 200 matches similar to: "sched provider"

2007 Feb 21
6
CPU stats problem
HI there, I?ve discovered DTrace few days ago and I?m currently stuck on a cpu stats problem. I?m trying to poll the cpu_t.cpu_acct[] array to pull idle, system and user values. So, I made this little script: ------------------------------------------------------------------------------------------------------ #!/usr/sbin/dtrace -s #pragma D option quiet this uint64_t start; this hrtime_t
2009 Apr 01
4
ZFS Locking Up periodically
I''ve recently re-installed an X4500 running Nevada b109 and have been experiencing ZFS lock ups regularly (perhaps once every 2-3 days). The machine is a backup server and receives hourly ZFS snapshots from another thumper - as such, the amount of zfs activity tends to be reasonably high. After about 48 - 72 hours, the file system seems to lock up and I''m unable to do anything
2006 Jun 20
1
Extending lwpsinfo_t with pr_lgrp for DTrace consumers
The sched provider defines the stable "lgrp" variable that is the lgroup of the current CPU. This is mostly interesting when we can compare it with the actual thread home lgroup, so I''d like to extend the lwpsinfo_t structure with the new pr_lgrp field which will be implemented using translator. This will match the addition of the pr_lgrp field to the proc(4) lwpsinfo_t
2006 Mar 30
8
iostat -xn 5 _donot_ update: how to use DTrace
on Solaris 10 5.10 Generic_118822-23 sun4v sparc SUNW,Sun-Fire-T200 I run #iostat -xn 5 to monitor the IO statistics on SF T2000 server. The system also have a heavy IO load, for some reason iostat donot refresh (no any update). It seems like iostat is calling pause() and stucked there. Also my HBA driver''s interrupt stack trace indicates there is a lot of swtch(), the overall IOPS
2010 Jun 28
23
zpool import hangs indefinitely (retry post in parts; too long?)
Now at 36 hours since zdb process start and: PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/NLWP 827 root 4936M 4931M sleep 59 0 0:50:47 0.2% zdb/209 Idling at 0.2% processor for nearly the past 24 hours... feels very stuck. Thoughts on how to determine where and why? -- This message posted from opensolaris.org
2008 Feb 12
1
measuring sleep time in synchronization objects
Hi, I am fairly new to DTrace, and wanted to ask something regarding synchronization objects. I have a multithreaded C++ program in which I use semaphores (POSIX version) for synchronization. I was interested in using DTrace to figure out the total time for which each thread in my application sleeps, blocked on a semaphore, i.e., as a result of sem_wait() call. In order to measure this, I
2011 Jan 18
2
Surprise Thread Preemptions
Hi, I would like to know about which threads will be preempted by which on my OpenSolaris machine. Therefore, I ran a multithreaded program "myprogram" with 32 threads on my 24-core Solaris machine. I make sure that each thread of my program has same priority (priority zero), so that we can reduce priority inversions (saving preemptions -- system overhead). However, I ran the following
2007 Apr 13
1
[Fwd: 4.92 beta update to centos5 proper words of caution]
Jim Perrin wrote: > For those of you who are going to do the update from the centos5 beta > to centos 5 proper despite the warnings, this is a(n incomplete) list > of instructions for how to accomplish this > > 1. Get yourself into runlevel 3 (telinit 3 from terminal) as the dbus > update will die if you're in X. > 2. Setenforce 0 # turn off selinux as there have been
2009 Oct 18
4
[Bug 24603] New: LVDS-0 off after resume, PGRAPH_ERROR in kern.log
http://bugs.freedesktop.org/show_bug.cgi?id=24603 Summary: LVDS-0 off after resume, PGRAPH_ERROR in kern.log Product: xorg Version: unspecified Platform: Other OS/Version: All Status: NEW Severity: normal Priority: medium Component: Driver/nouveau AssignedTo: nouveau at lists.freedesktop.org
2007 Nov 27
5
Dtrace probes for voluntary and involuntary context switches
Hi, I am profiling some workloads for the voluntary and involuntary context switches. I am interested in finding out the reasons causing these two types of context switches. As far as I understand, involuntary context switch happens on expiration of time slice or when a higher priority process comes in. While the voluntary switch generally happens when a process is waiting for I/O etc. So to
2011 Apr 28
1
odbc error - server is gone
Hi list, yesterday I converted my voicemail.conf to realtime voicemail and also configured to store the voicemessages in a database using odbc as described here <http://www.voip-info.org/wiki/view/Asterisk+RealTime+Voicemail> and here <http://www.voip-info.org/wiki/view/Asterisk+Voicemail+ODBC+storage>. I am using asterisk 1.4.2 with mysql. I also installed the proper odbc driver for
2005 May 30
2
Proxy ARP working from Internet but not from fw and loc
Hello everybody. I could not find an answer to my problem in the archive. (But that may just be me :-) ) I have a problem with proxy arp and connection from loc (localnet) and from the firewall. Works fine from internet to dmz / proxy arp and vise versa. I have a feeling the solution is simple, but I''m no guru in Linux routing etc. The problem seems to be the routing setup. loc -
2011 Jan 05
2
vector of character with unequal width
Dear R users, The best in this new year 2011. I am dealing with a character vector (xx) whose nchar are not the same. Ex. nchar(xx) [1] 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 [38] 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 3 3 3 4 4 4 4 4 4 4 4 [75] 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ....... 9 I need xx to be nchar = 9 My
2008 Jun 18
1
snv_81 domU: long delay during boot when dom0 has been up for a long time
This one happened today: Gentoo linux dom0, xen 3.2.0 hypervisor (32-bit), Intel Quad-core cpu, 8GB memory. This linux box / dom0 is up for 40 days. OpenSolaris SXCE snv_81 PV domU (32-bit) Problem: when starting the snv_81 domU, we''re stuck for more than 60 seconds early during bootstrap: v3.2.0 chgset ''unavailable'' SunOS Release 5.11 Version snv_81 32-bit
2007 Aug 22
5
Slow concurrent actions on the same LVM logical volume
Hi 2 all ! I have problems with concurrent filesystem actions on a ocfs2 filesystem which is mounted by 2 nodes. OS=RH5ES and OCFS2=1.2.6 F.e.: If I have a LV called testlv which is mounted on /mnt on both servers and I do a "dd if=/dev/zero of=/mnt/test.a bs=1024 count=1000000" on server 1 and do at the same time a du -hs /mnt/test.a it takes about 5 seconds for du -hs to execute: 270M
2015 Feb 06
0
Asterisk 13.2.0 Now Available
The Asterisk Development Team has announced the release of Asterisk 13.2.0. This release is available for immediate download at http://downloads.asterisk.org/pub/telephony/asterisk The release of Asterisk 13.2.0 resolves several issues reported by the community and would have not been possible without your participation. Thank you! The following are the issues resolved in this release: Bugs
2015 Feb 06
0
Asterisk 13.2.0 Now Available
The Asterisk Development Team has announced the release of Asterisk 13.2.0. This release is available for immediate download at http://downloads.asterisk.org/pub/telephony/asterisk The release of Asterisk 13.2.0 resolves several issues reported by the community and would have not been possible without your participation. Thank you! The following are the issues resolved in this release: Bugs
2008 Apr 10
1
Computing time when calling C functions - why does an extra function call induce such an overhead?
Dear list, I am a little puzzled by computing time in connection with calling C functions. With the function mysolve1 given below I solve Ax=B, where the actual matrix operation takes place in mysolve2. Doing this 5000 times takes 3.51 secs. However, if I move the actual matrix inversion part into mysolve1 (by uncommenting the two commented lines and skip the call to mysolve2) then the
2007 Apr 18
2
[PATCH/RFC] replace get_scheduled_cycles with sched_clock paravirt_op
Subject: Add a sched_clock paravirt_op The tsc-based get_scheduled_cycles interface is not a good match for Xen's runstate accounting, which reports everything in nanoseconds. This patch replaces this interface with a sched_clock interface, which matches both Xen and VMI's requirements. In order to do this, we: 1. replace get_scheduled_cycles with sched_clock 2. hoist cycles_2_ns
2007 Apr 18
2
[PATCH/RFC] replace get_scheduled_cycles with sched_clock paravirt_op
Subject: Add a sched_clock paravirt_op The tsc-based get_scheduled_cycles interface is not a good match for Xen's runstate accounting, which reports everything in nanoseconds. This patch replaces this interface with a sched_clock interface, which matches both Xen and VMI's requirements. In order to do this, we: 1. replace get_scheduled_cycles with sched_clock 2. hoist cycles_2_ns