similar to: linux kernel tweaking for Asterisk

Ok here is a real geek question, I building my own linux kernel for my asterisk system and came across the kernel setting for the timer frequency. I have one of 3 hardcode choices 100Hz, 250 Hz and 1000Hz. From what I understand the default Freq was changed from 100Hz in kernel 2.4 to 1000Hz (1KHz) in kernel 2.6. Timing is a BIG issue in asterisk with all the TDM and zap channel stuff.

Hi. I'm trying to use CentOS4.2 for some audio work (ie. sound editing, etc.). I found a site called PlanetCCRMA (http://ccrma.stanford.edu/planetccrma/software/) and decided that I would give some of their applications a try (hoping that it would not affect my system greatly!). At first I tried the Fedora 3 packages (and they do work), but what I really wanted to do is to download the

First, thanks to Kevin for the quick response to the 'minor' problem that zaptel had with 2.6.13 kernels. Interestingly in the kernel config you can now change the timer frequency. According to the help messages 100 HZ is a typical choice for servers, SMP and NUMA systems with lots of processors that may show reduced performance if too many timer interrupts are occurring. 250 HZ is a

Hi, I'm building a test asterisk server and building the latest kernel I got to wonder if there are any specific recommendations about schedulers and so forth for optimum performance. There are a few areas that raise questions in my mind and I wonder if anyone has any opinions/comments on which settings are most suitable for use with asterisk: SLAB Allocator (SLAB or SLUB?) Tickless

Hello, i have a linux box which is acting as a lan router towards the internet doing traffic shaping. My link is 10Mbit/s full duplex. I have set some HTB classes with a rate of 20% (2Mbit/s) and a ceil of 95% (9.5Mbit/s). Is such an excursion of bandwidth in the HTB classes feasible for HTB to control? What Timer frequency (kernel menuconfig) is the most suitable among 250, 300 and 1000Hz

Does anyone have any general tips on how to get programs to work on Wine? I hear lots of success stories for various programs which I have failed to get working on my own machine. But then again, my own version of wine is a bog-standard installation without any special adjustments made to it. What are the steps usually taken to attempt to get a program to run under Wine? Or is that too

Hello everyone, Now that astlinux-trunk has been coming along very nicely, I thought I would try to add support for hard realtime capabilities to AstLinux. If everything works (and there are no problems with zaptel), with a little tweaking this should improve the audio quality on systems with high loads (and probably any system at that) - especially if it is finely tuned and has zaptel

Hello everyone, (I first sent this several hours ago, it appears it got lost. Thought I'd give it a second try). Now that astlinux-trunk has been coming along very nicely, I thought I would try to add support for hard realtime capabilities to AstLinux. If everything works (and there are no problems with zaptel), with a little tweaking this should improve the audio quality on systems

tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/mst/vhost.git linux-next head: 25da3c2b439666602852820e3231349085682e1a commit: 4cfd64ce2ad979cbd9a97e1500533d2f5f1355b8 [4/5] rcu: add count of outstanding callbacks config: i386-allnoconfig (attached as .config) compiler: gcc-7 (Debian 7.4.0-10) 7.4.0 reproduce: git checkout 4cfd64ce2ad979cbd9a97e1500533d2f5f1355b8

Hello. I have installed the ext3 file system on a test system, and sometimes I have a problem: I get an assert from within jbd-kernel.c, and whatever prgram was writing to the disk when this happens is unable to continue. The system is a server I built, which I named "dax". It is running Debian unstable, and I updated it to all the latest packages in Debian unstable as of today.

Hello, We use Asterisk extensively for conferencing - for the last 8 years or so this has been the 1.4/1.6/1.8 releases running chan_sip and meetme for up to around 350 concurrent users. Right around that number DAHDI hit's a hard coded memory limit and kicks allocation errors in the log. [Jun 22 10:04:13] WARNING[9095] app_meetme.c: Unable to open DAHDI pseudo channel: Cannot allocate

Hello, The XEN kernel in "XEN RELEASE-4.0.1" is shipped with the following config parameters: CONFIG_HZ_1000=y CONFIG_HZ=1000 At many blogs and forums there is a discussion that the CONFIG_HZ parameter should be changed to 250 HZ or 300 HZ. We will operate a DomU and the Dom0 with the same 1000HZ Kernel. Is this setup possible and recommended. How high is the performance cut-off?

Hi, Can Ferret be configured to change the minimum word length of what it indexes? Right now it seems to drop words 3 characters or less, but I''d like to include words going down to 2 characters. How would I do that? Francis

Hi Everyone, I've been happy with my setup the last 2 years, and I just bought a new router - D-Link DIR-655. I was connecting wireless and wired and noticed the following before tweaking: Wired 100 Mbps ============== Macbook to Ubuntu: 56 Mbps Windows to Ubuntu: 72 Mbps Wireless N (Connected at 130 Mbps ... Apple's fault) ================================================== == Macbook

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

>Thank you! It worked and I finally got a working kernel. Here is the kernel boot log: Sound great ! Though I ended with error from log below. Had no chance to fix it yet: ? CPU: AMD QEMU Virtual CPU version 2.5+ (family: 0x6, model: 0x6, stepping: 0x3) Performance Events: PMU not available due to virtualization, using software events only. ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1

Hi all, some nouveau users and developers have an issue with mmiotracing the nvidia driver. After some digging I think it might has something todo with hugepages and/or the tracing infrastructure in general, but generally I am still clueless what is causing this. Generally it can be triggered by starting a X server on the nvidia gpu with the nvidia kernel module loaded and mmiotracer active

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* zach@vmware.com (zach@vmware.com) wrote: > Make the LDT a desc_struct pointer, since this is what it actually is. I like that plan. > There is code which relies on the fact that LDTs are allocated in page > chunks, and it is both cleaner and more convenient to keep the rather > poorly named "size" variable from the LDT in terms of LDT pages. I noticed it's replaced

* zach@vmware.com (zach@vmware.com) wrote: > Make the LDT a desc_struct pointer, since this is what it actually is. I like that plan. > There is code which relies on the fact that LDTs are allocated in page > chunks, and it is both cleaner and more convenient to keep the rather > poorly named "size" variable from the LDT in terms of LDT pages. I noticed it's replaced