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On Friday, June 06, 2014 01:59:18 AM covici@××××××××××.com wrote: |
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> Hi. I am having some strange performance problems when booted under |
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> systemd. These problems happened a little bit under openrc, but are |
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> much more pronounced with systemd. |
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I don't think it's necessarily systemd itself, just a setting that systemd |
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does differently then openrc. See below for more. |
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> I am using just virtual consoles, no gui whatsoever at the moment. I |
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> also use tmux with 4 windows in one of the vcs. My system is an i7 |
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> processor, quod core and 16g of ram and 2g of swap space which appears |
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> not to be used. I am using uvesafb for the console, so I get 64x160 |
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> screens. |
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Sounds similar to my laptop, except I run KDE and got 16g of swap (for |
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hibernate) |
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> The first problem is that if I don't press any keystrokes for several |
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> minutes and then want to move to another vc, it takes about 3 or 4 |
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> seconds after the alt-left arrow or alt-right arrow command to take |
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> effect. Even within the same vt, if I don't do anything for several |
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> minutes, it takes several seconds till the keystroke echoes and |
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> something happens. Once I have done this, things act normally, but its |
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> kind of annoying. |
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Sounds like a powersave setting. I used to get the same on my old laptop with |
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spinning rust. SSDs tend to "spin-up" a lot quicker. |
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> Also, my load average seems to always be >1. I have |
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> looked at top and things seem to be OK, except that my cpu usage is like |
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> this: |
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> Tasks: 934 total, 2 running, 931 sleeping, 0 stopped, 1 zombie |
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> %Cpu(s): 12.5 us, 1.2 sy, 0.0 ni, 86.0 id, 0.2 wa, 0.0 hi, 0.0 si, |
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> 0.0 st |
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> KiB Mem: 16450248 total, 9678656 used, 6771592 free, 1084088 buffers |
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> KiB Swap: 2097148 total, 4 used, 2097144 free. 1147688 cached |
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> Mem |
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> |
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> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ |
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> COMMAND |
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> 9969 root 20 0 708 16 0 R 100.0 0.0 1549:10 v86d |
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> 579 root 30 10 0 0 0 S 9.1 0.0 16:09.93 |
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> speakup |
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> 11789 root 20 0 22524 2388 1116 R 0.7 0.0 0:00.03 top |
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> 7 root 0 -20 0 0 0 S 0.3 0.0 0:10.41 |
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> kworker/u:0H |
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> |
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> and onward ... |
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> This is an awful lot of tasks, I have never seen so many! |
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That is a lot, I am currently running KDE, firefox and a citrix remote desktop |
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thing. (oh, and skype and kopete and a few other items) |
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KDE is installed with semantic-desktop, but the nepomuk stuff is disabled in |
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system-settings. |
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I have 200 tasks (yes, nice round figure) |
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> Anyone have any ideas? Thanks much. |
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For the amount of tasks, check that you are not starting too many unneeded |
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services. For the load-average of 1, shouldn't be too much of an issue, had |
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similar in the past with a lot of stuff running and slow disks. |
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For the freezing, I would suggest checking all the powersave options, |
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especially the ones for the harddrives. |
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Is there anything in the logs when this happens? Eg. check the logs right |
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after the system becomes responsible again, maybe there is a hint there what |
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is causing this. |
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|
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-- |
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Joost |
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