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Just annotations of little "how to's", so I know I can find how to do something I've already done when I need to do it again, in case I don't remember anymore, which is not unlikely. Hopefully they can be useful to others, but I can't guarantee that it will work, or that it won't even make things worse.
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Liquorix kernel seems more responsive than Debian's default

Posted 05-28-2014 at 10:46 AM by the dsc

I'm somewhat skeptical of the tuned-kernel movement, so I didn't install it expecting to make my OS "fly" or anything. It just happened that recently there had been some weird kernel error messages ("perf samples too long"), and, related to that or not, the OS would become sluggish with lots of read-or-write activity (on my old HDD that must be really slow, to add to sluggishness). Apparently you can sort of solve it in a sysctl-like way, printing a "0" to some file/parameter, and it has to be done every time according to the post I've read, but I find weird/suspicious that there's no config file for that, that it has to be generated. As I had found it weird I thought about trying Liquorix again, which I had used before, not noticing any tremendous gains (I think that at that time it made the sound work/work consistently, though).

After one day of "testing" incidentally by normal usage, there were no more "perf samples too long" (I don't know whether the error isn't there or it simply isn't shown on dmesg anymore, though), and seems that the sluggishness episodes have been fewer and shorter.

Before installing Liquorix I saw a curious benchmark on Phoronix, where ironically Liquorix had somewhat significant better performance on some server-relevant tasks, where losing a little bit in some "gaming"-relevant tasks! The "server relevant tasks" were related to disk-access (disk access itself, and, I guess, because of it, static web-page serving).

That wasn't even the same kernel version I've installed, so perhaps it's not even relevant, it seems those are things that change from version to version.

It seems that the "git" kernel performs even better, though. I just don't know if it's a good idea to have it, I guess Liquorix is somewhat better tested/more widely used, but I really don't know.
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  1. Old Comment
    I'm just happy this even boots on this P3 IBM T23 and supports everything I have plugged into it.

    $ inxi -Fxz
    System:    Host: biker Kernel: 3.14.3-dreamlinux-liquorix i686 (32 bit gcc: 4.6.2) 
               Desktop: Fluxbox 1.3.2 
               Distro: antiX-13_386-full Luddite 01 June 2013 
    Machine:   Mobo: IBM model: 26474MU
               Bios: IBM v: 1AET64WW (1.20 ) date: 10/18/2006
    CPU:       Single core Mobile Intel Pentium III - M (-UP-) cache: 512 KB
               flags: (pae sse) bmips: 2397 clocked at 1197 MHz
    Graphics:  Card: S3 SuperSavage IX/C SDR bus-ID: 01:00.0
               Display Server: X.Org 1.12.4 drivers: savage (unloaded: fbdev,vesa)
               Resolution: 1024x768@60.0hz
               GLX Renderer: Gallium 0.4 on softpipe
               GLX Version: 2.1 Mesa 8.0.5 Direct Rendering: Yes
    Audio:     Card Intel 82801CA/CAM AC'97 Audio Controller 
               driver: snd_intel8x0 ports: 1c00 18c0 bus-ID: 00:1f.5 
               Sound: ALSA v: k3.14.3-dreamlinux-liquorix
    Network:   Card-1: Intel 82801CAM (ICH3) PRO/100 VE (LOM) Ethernet Controller
               driver: e100 v: 3.5.24-k2-NAPI port: 6400 bus-ID: 02:08.0
               IF: eth0 state: down mac: <filter>
               Card-2: Ralink RT2800 802.11n PCI
               driver: rt2800pci v: 2.3.0 bus-ID: 07:00.0
               IF: wlan1 state: up mac: <filter>
    Drives:    HDD Total Size: 80.0GB (31.1% used)
               ID-1: /dev/sda model: ST980815A size: 80.0GB
    Partition: ID-1: / size: 73G used: 23G (33%) fs: ext4 dev: /dev/sda1 
               ID-2: swap-1 size: 1.12GB used: 0.00GB (0%) fs: swap dev: /dev/sda2 
    Sensors:   System Temperatures: cpu: 51.0C mobo: 50.0C 
               Fan Speeds (in rpm): cpu: 4870 
    Info:      Processes: 109 Uptime: 1:05 Memory: 423.9/1006.6MB 
               Init: SysVinit runlevel: 5 Gcc sys: 4.7.2 
               Client: Shell (bash 4.2.371) inxi: 2.1.28
    Posted 06-06-2014 at 06:25 PM by rokytnji rokytnji is offline


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