similar to: Firefox and CPU spikes?

I've made some modifications to zttest in order to use it as a frame clock accuracy tester / slip detector. I'm not certain if that was it's original purpose, but it seems that a lot of folks try to use it that way. The result is something that I'm calling ztclock for now to help avoid confusion. I'm including the source at the end of this post. You can compile it by placing

I need to reopen this discussion because it's impossible to run spandsp (and VoIP) under these circumstances. With zaptel unloaded, I see the following "vmstat 1" output: no swapping, an occasional disk output, +/- 1003 interrupts/sec., less than 10 context switches/sec., CPU idle 100%. A very quiet system. I load modules zaptel and wcfxo, and the system utilization stays the

Hi, I've been getting regular CPU usage spikes(50%-80%), due to asterisk (according to top). I never noticed this on 1.4, and I have top running in the background pretty much all the time. In between those spikes Asterisk stays under 10% CPU usage (I have a transcoder card, which helps). It's very regular, never any missed spike, or any spike in between the regular spikes. I

Hi All, I have a problem (at least I think it's a problem) where the wcfxs module causes constant CPU usage spikes. The card being used is a Digium Wildcard TDM400P with 3 FXO modules and 1 FXS (TDM31B). Monitoring my otherwise idle asterisk box (with top) I see once every 3-5 seconds hi (hardware interrupt) spike to 30%-40% and then drop back to 0 again. This is the case wtih both asterisk

Hi All, I built a system which allows people to call a phone number and listen to various online media streams (train yards, radio stations etc). I use ffmpeg + MusicOnHold to play the streams. The system also allows callers to hear pre recorded content. Normally about 250 calls equates to about 150-175% CPU usage. Every so often I see the load spiking (max 16 which is fine considering the box

Digging further into the FXO cpu spike vs clock issue, I removed the 18.432 MHZ crystal from an FXO card and replaced it with a 20.000 MHZ crystal. This of course forced the zaptel timing way off ~ 93% accurate using ztclock. I then proceeded to modify the wcfxo.c driver source code to set the proper PLL divider values to return the DAA clock back to 8 Khz. I came up with the values of N1=25,

Hi, ? I've recently moved from OpenVPN to Tinc for the mesh setup. Everything works nicely except for some looping packet issues. ? I have 12 servers around the United States, including a couple of moving clients. Every now and then the network is flooded with what I assume is looping packets. 200-300MB of bandwidth per node over 10-45 minutes (normally < 20 KB/s, idle). Most if not all

Hi all, My server is connected to a UPS but whenever there is a power failure or spike it seems that once all the clients come back up they cannot connect. I have to restart the server each time. This is no hardship but I was just wondering if anybody had the same problem and if so and they fixed it, how? Thanks Tom Ansley

We are running Zope behind Squid 2.4Stable6 with squid in acceleration mode. The squid box (dual Pentium III 1 GHz, RH 7.2, Linux 2.4.9-21smp, 2GB Ram) has during busy hours a normal load of 0.2-0.3 . From time to time we see spikes over some hours where the load average of the machine is higher than 1.5 although there are no spikes in the CPU utilization. Also there is no increase in the number

Hello, I have a 3 server asterisk configuration where one asterisk (say A) (v 1.4.25) has a digiuim card connected to E1 from which calls are routed to another asterisk server (B) (1.6.0.9) over IAX trunk from which calls get routed to third server (C) (1.6.0.9) again via IAX trunk. SIP clients are connected to third server. A is the PSTN termination server, B runs the menu and AGI and C is

I'm debugging a TxFax problem whereby the fax transmission fails. I suspect interrupt latency--some interrupt routine is holding its interrupt too long. I have all unnecessary services switched off and X is not running when I perform these tests. Some transmission are successful while others fail at random points. I've noticed that after I boot Linux, load zaptel, wcfxo, and wcfxs,

On 09/04/2017 10:00 AM, Ingard Mev?g wrote: > Hi > > I'm seeing quite high cpu sys utilisation and an increased system load > the past few days on my servers. It appears it doesn't start at exactly > the same time for the different servers, but I've not (yet) been able to > pin the cpu usage to a specific task or entries in the logs. > > The cluster is

Hi, very periodically, we see I/O hangs for about 10 seconds, roughly once per minute. Each time this happens, the I/O rate simply drops to zero, and all disk access hangs; this is also very noticeable on the shell, for NFS clients etc. Everything else (networking, kernel, ?) seems to continue normally. Environment: FreeBSD 9.1R GENERIC on amd64, using ZFS, on a ARC1320 PCIe with 24x Seagate

In May I had problem with mongrels suddenly consuming huge cpu resources for a minute or two and then returning to normal (load average spikes up to 3.8and then back down to a regular 0.2 over the course of 5 minutes, then again 1/2 hour later. or 4 hours later, no predictable rhythm). I posted to Litespeed forums because I thought the problem was there but didn''t get far. And a week

Hi.. I am setting up a new server (2GHz CPU, Ubuntu 8.10) and am using dovecot for an IMAP server. I have installed dovecot 1.1.4 and Squirrelmail 1.4.15. sudo dovecot -n shows this: # 1.1.4: /etc/dovecot/dovecot.conf log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap login_dir: /var/run/dovecot/login login_executable: /usr/lib/dovecot/imap-login login_process_per_connection: no

Hi Okay so we've been having this issue since forever and I figured why the heck not ask it here since it's mostly related to dovecot. The thing is, we have a huge amount of public folders (at the moment, around 1100). Now, with dovecot indexing and caching we're mostly okay, also being careful with things like Thunderbird 3's default 'Download everything' option

I''ve been troubleshooting this problem for several hours now and haven''t been able to figure out what''s wrong. I have two boxes, dev and prod, both are identical except that prod uses Ruby 1.8.5 and dev uses 1.8.4. Both are running Slave 1.2.0, Daemons 1.0.5, and Backroundrb 0.2.1. The behavior I''m seeing is this. When I first start Backgroundrb, this is what

I got this working perfectly at home - what should be exact same setups- - Fresh install of CentOS 5 32-bit from DVD - yum update & upgrade - Reboot - yum install mysql-server - Download phpmyadmin and bugzilla from their respective home pages - Move both to /var/www/html, naming the extracted phpmyadmin directory as phpmyadmin, the same with bugzilla - Copy my working httpd.conf file from

Please, don't hate me because I use Redhat. I am aware that I am asking for problems in running Asterisk on Redhat. I recently aquired a nifty server, moved my digium cards, and installed asterisk. I noticed that one of the four processors was being used at 100% and nothing was working. I tracked CPU utilization back to the Asterisk process. Please, help. James

Is inbound or outbound? What port? tcp or udp? ------Mensaje original------ De: Bowie Bailey Remitente: centos-bounces at centos.org Para: CentOS mailing list Responder a: CentOS mailing list Asunto: [CentOS] Outbound traffic spike every 30 minutes Enviado: 3 de dic de 2013 19:36 Since Sunday morning, one of my CentOS servers has been generating a small spike of outbound traffic every 30