Re: Weird memory usage, performance problem with 6.1_STABLE

[Mark Davies <mark%ecs.vuw.ac.nz@localhost>]

On Fri, 20 Sep 2013, Mark Davies wrote:
> On Fri, 20 Sep 2013, Lars Heidieker wrote:
> > Can you see which kernel thread causes high CPU usage by showing
> > lwps in top? (t toggles those modes)
> 
> 149 threads: 25 idle, 118 sleeping, 6 on CPU
> Memory: 15G Act, 15M Wired, 28M Exec, 15G File, 4620K Free
> Swap: 8192M Total, 8192M Free
> 
>   PID   LID USERNAME PRI STATE      TIME   WCPU    CPU NAME
> COMMAND
>     0    81 root     221 CPU/0     24:19 93.60% 93.60% pgdaemon
> [system]
> 13362     1 root     116 tstile/4   6:09 19.58% 19.58% -        
> ftpd 17398     1 root     221 tstile/2   8:26 18.07% 18.07% -     
>    ftpd 14648     1 root     116 tstile/1   4:15 16.41% 16.41% -  
>       ftpd
> 
> > or even better try:
> > systat vm 1
> > and check for page scan rates etc.
> 
> When it was in the above state  pdscn was reporting around 95000,
> pdfre was 0.


So is there something I can tune to get better behaviour out of this?
Just for comparison I tried the same thing on a 6.1_STABLE/i386 with 
4GB (3.3 available)  and with 3 ftp's going it at sat at 2G active and 
1G inactive and remained responsive throughout the entire download.

cheers
mark