[gentoo-user] Screen is being a CPU hog, big time!!!

[Dale <dalek@exceedtech.net>]

Hi all, it is me again.  LOL

I run folding on all my rigs and noticed something strange.  It uses
screen so I can detach, logout and etc.  Check this out though:

> top - 06:27:32 up 19:34,  4 users,  load average: 2.08, 0.76, 0.26
> Tasks: 103 total,   3 running, 100 sleeping,   0 stopped,   0 zombie
> Cpu(s): 25.2% us, 72.4% sy,  2.3% ni,  0.0% id,  0.0% wa,  0.0% hi, 
> 0.0% si
> Mem:   1034548k total,   937264k used,    97284k free,   257980k buffers
> Swap:   488336k total,      188k used,   488148k free,   287116k cached
>
>   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
>  1781 root      25   0 59760 1196  568 R 49.2  0.1   0:44.51
> FAH502-Linux.ex
>  1713 root      16   0  2676 1232  892 S 44.6  0.1   0:39.55 screen
>  8649 root      15   0  191m  60m 4644 S  3.3  6.0  32:26.83 X
>  1800 root      35  19 43728  32m  472 R  2.0  3.3   0:00.11
> FahCore_78.exe
>     1 root      16   0  1464  492  428 S  0.0  0.0   0:00.20 init
>     2 root      34  19     0    0    0 S  0.0  0.0   0:00.04 ksoftirqd/0
>     3 root      10  -5     0    0    0 S  0.0  0.0   0:00.06 events/0
>     4 root      15  -5     0    0    0 S  0.0  0.0   0:00.00 khelper
>     5 root      11  -5     0    0    0 S  0.0  0.0   0:00.00 kthread

Now so you will know, this rig has a AMD 2500+ CPU.  This is not one of
my very slow rigs.  Why is screen taking up so much CPU time?  Almost
45%.  O_O

What I have done so far, re-emerged screen and done a etc-update, almost
hit the tab key after etc-.  :/  Habit I guess.  LOL  I did a env-update
and even logged out and back in.  Nothing but more smoke.

What is up with this?  It was working fine the other day.  I have gotten
to where I use it a lot.  I'm still trying to figure out screen but I am
making progress with it.  This is what it looks like on my AMD 800 MHz rig:

> top - 07:01:15 up 12:28,  1 user,  load average: 1.00, 1.00, 1.00
> Tasks:  38 total,   3 running,  35 sleeping,   0 stopped,   0 zombie
> Cpu(s):  0.3% us,  0.0% sy, 99.7% ni,  0.0% id,  0.0% wa,  0.0% hi, 
> 0.0% si
> Mem:    125004k total,   122484k used,     2520k free,    79124k buffers
> Swap:   193496k total,       88k used,   193408k free,     7340k cached
>
>   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
>  6168 root      39  19 15712 7524 1064 R 99.8  6.0 427:21.84
> FahCore_78.exe
>     1 root      16   0  1440  484  428 S  0.0  0.4   0:00.17 init
> <<<snip big time>>>
>  5852 root      16   0  2740 1484  952 S  0.0  1.2   0:04.43 screen
>  5853 root      25   0 10732 1072  792 S  0.0  0.9   0:06.01
> FAH502-Linux.ex
>  5907 root      16   0 10732 1072  792 S  0.0  0.9   0:00.00
> FAH502-Linux.ex
>  5908 root      15   0 10732 1072  792 S  0.0  0.9   0:05.88
> FAH502-Linux.ex
>  5909 root      16   0 10732 1072  792 S  0.0  0.9   0:00.00
> FAH502-Linux.ex
>  6165 root      15   0 10732 1072  792 S  0.0  0.9   0:00.00
> FAH502-Linux.ex
>  6166 root      34  19 15712 7524 1064 S  0.0  6.0   0:00.23
> FahCore_78.exe
>  6167 root      34  19 15712 7524 1064 S  0.0  6.0   0:00.00
> FahCore_78.exe
>  6169 root      34  19 15712 7524 1064 S  0.0  6.0   0:00.00
> FahCore_78.exe
>  7369 root      16   0  6336 1928 1548 R  0.0  1.5   0:00.05 sshd
>  7375 root      16   0  2292 1344 1096 S  0.0  1.1   0:00.02 bash
>  7381 root      16   0  2028 1052  828 R  0.0  0.8   0:00.06 top


Do I need to back up a version and mask it for a while?  If so, how do I
get the previous version info?  I assume it is equery something.  I know
how to emerge it I think but they changed how to get a list of what
versions are in portage since I used it last time.

This is the uncommented bit of screenrc:

>autodetach on
>startup_message off
>crlf off
>multiuser off
>defscrollback 1000
>silencewait 15
>bufferfile            $HOME/.screen_exchange
>shell -$SHELL
>pow_detach_msg "Screen session of \$LOGNAME \$:cr:\$:nl:ended."
>termcap  xterm hs@:cs=\E[%i%d;%dr:im=\E[4h:ei=\E[4l
>terminfo xterm hs@:cs=\E[%i%p1%d;%p2%dr:im=\E[4h:ei=\E[4l
>termcapinfo  xterm Z0=\E[?3h:Z1=\E[?3l:is=\E[r\E[m\E[2J\E[H\E[?7h\E[?1;4;6l
>termcapinfo xterm* OL=100
>termcapinfo xterm 'VR=\E[?5h:VN=\E[?5l'
>termcapinfo xterm 'k1=\E[11~:k2=\E[12~:k3=\E[13~:k4=\E[14~'
>termcapinfo xterm 'kh=\EOH:kI=\E[2~:kD=\E[3~:kH=\EOF:kP=\E[5~:kN=\E[6~'
>termcapinfo xterm 'hs:ts=\E]2;:fs=\007:ds=\E]2;screen\007'
>termcapinfo xterm 'vi=\E[?25l:ve=\E[34h\E[?25h:vs=\E[34l'
>termcapinfo xterm 'XC=K%,%\E(B,[\304,\\\\\326,]\334,{\344,|\366,}\374,~\337'
>termcapinfo xterm* be
>termcapinfo xterm|xterms|xs ti@:te=\E[2J
>termcapinfo wy75-42 xo:hs@
>termcapinfo wy* CS=\E[?1h:CE=\E[?1l:vi=\E[?25l:ve=\E[?25h:VR=\E[?5h:VN=\E[?5l:cb=\E[1K:CD=\E[1J
>termcapinfo  hp700 'Z0=\E[?3h:Z1=\E[?3l:hs:ts=\E[62"p\E[0$~\E[2$~\E[1$}:fs=\E[0}\E[61"p:ds=\E[62"p\E[1$~\E[61"p:ic@'
>termcap  vt100* ms:AL=\E[%dL:DL=\E[%dM:UP=\E[%dA:DO=\E[%dB:LE=\E[%dD:RI=\E[%dC
>terminfo vt100* ms:AL=\E[%p1%dL:DL=\E[%p1%dM:UP=\E[%p1%dA:DO=\E[%p1%dB:LE=\E[%p1%dD:RI=\E[%p1%dC
>termcapinfo linux C8
>
><<< left out the bindings >>>
>
>register [ "\033:se noai\015a"
>register ] "\033:se ai\015a"
>bind ^] paste [.]
>  
>

Thanks, I hope someone knows how to fix this.  I may copy my config file
from one of my other rigs and try it.  Sort of chicken though.

My lady is supposed to call, so I will check in when I can.  Dial-up
user here.

Dale
:-)

gentoo-user list, check.  I'm trying to stay out of the gentoo-dev list
OK.  LOL

-- 
To err is human, I'm most certainly human.

 

-- 
gentoo-user@gentoo.org mailing list