[gentoo-user] problems with performance when booted using systemd

[covici@ccs.covici.com]

Hi.  I am having some strange performance problems when booted under
systemd.  These problems happened a little bit under openrc, but are
much more pronounced with systemd.

I am using just virtual consoles, no gui whatsoever at the moment.  I
also use tmux with 4 windows in one of the vcs.  My system is an i7
processor, quod core and 16g of ram and 2g of swap space which appears
not to be used.  I am using uvesafb for the console, so I get 64x160
screens.

The first problem is that if I don't press any keystrokes for several
minutes and then want to move to another vc, it takes about 3 or 4
seconds after the alt-left arrow or alt-right arrow command to take
effect.  Even within the same vt, if I don't do anything for several
minutes, it takes several seconds till the keystroke echoes and
something happens.  Once I have done this, things act normally, but its
kind of annoying.  Also, my load average seems to always be >1.  I have
looked at top and things seem to be OK, except that my cpu usage is like
this:
Tasks: 934 total,   2 running, 931 sleeping,   0 stopped,   1 zombie
%Cpu(s): 12.5 us,  1.2 sy,  0.0 ni, 86.0 id,  0.2 wa,  0.0 hi,  0.0 si,
0.0 st
KiB Mem:  16450248 total,  9678656 used,  6771592 free,  1084088 buffers
KiB Swap:  2097148 total,        4 used,  2097144 free.  1147688 cached
Mem

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+
  COMMAND
 9969 root      20   0     708     16      0 R 100.0  0.0   1549:10 v86d
  579 root      30  10       0      0      0 S   9.1  0.0  16:09.93
  speakup
11789 root      20   0   22524   2388   1116 R   0.7  0.0   0:00.03 top
    7 root       0 -20       0      0      0 S   0.3  0.0   0:10.41
  kworker/u:0H

and onward ...
This is an awful lot of tasks, I have never seen so many!

Anyone have any ideas?  Thanks much.


-- 
Your life is like a penny.  You're going to lose it.  The question is:
How do
you spend it?

         John Covici
         covici@ccs.covici.com