Re: [Summary-Talk] dreadfully slow to load pages

[Jason Linhart <jason@xxxxxxxxxxx>]

On 1/27/03 4:47 PM Nick Davis (ndavis@iexposure.com) wrote:

>We are running summary sp 2.3.2 on linux.
>Server is debian 3.0.
>AMD K6-2 400
>640MB RAM
>
>The report.dat is 606MB.
>The dnscache is 13MB
>
>When I login to view a subreport here is what happens:
>
>it takes at least 30sec to load every page

It sounds like you have started paging to virtual memory. Summary slows 
down very dramatically if there is not enough RAM to keep the entire 
database in RAM. You might be able to follow some of the suggestions in 
the running out of memory FAQ item, 
<http://summary.net/manual/faq.html#memorylack>, to get memory usage down 
slightly and speed up dramatically. Alternatively, you could purchase 
more RAM.

There are a few other possibilities, but given your setup that seem far 
and away the most likely cause of your problems. One customer had a 
similar problem and traced it to a malfunctioning disk drive, it could 
read only after several retries per block transferred. Others have had 
similar problems because they are running Linux kernels with version 
numbers between 2.4.10 and 2.4.17. 2.4.9 and lower and 2.4.18 (with 
common patches) and higher are fine. There were also several 2.5.x 
versions that had similar problems. Those kernels had significant virtual 
memory bugs which slowed Summary down significantly.

Good Luck
Jason

-----------------
Jason@Summary.Net
-----------------
Dr. Seuss books . . . can be read and enjoyed on several levels. For
example, 'One Fish Two Fish, Red Fish Blue Fish' can be deconstructed
as a searing indictment of the narrow-minded binary counting system.
  -- Peter van der Linden, Expert C Programming, Deep C Secrets
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