On 10/02/2015, at 10:51 PM, Paul Royik <[email protected]> wrote:

> Thank you for your response.
> I asked about socket-timeout, because yesterday I cahnged it to 170 and left 
> request-timeout on 60 seconds.
> And it worked. There was no 504 error.
> 
> I tried simultaneously on different computers access calculator and it showed 
> no drastic increase in memory usage. Same 200-250 MB level.
> I use packaged algorithm (efficient) with slight modifications.
> 
> "Have you tried extracting the integral algorithm into a standalone Python 
> script separate from your web application and run it and watched how much 
> memory it uses? " I don't know this area of Python. How can I watch memory 
> usage of piece of code?

Time to sleep, but have a look at the 'ps' command for a start.

Using 'ps auxwww' will show columns for memory use. The manual page (man ps) 
will explain what you are seeing.

> "As to the log messages you gave me, it is a bit hard for me to relate this 
> to what you saw as I don't know what the number of threads was you were 
> running. It seems you had increased it beyond 5. And I didn't know what the 
> request-timeout was set to either." you told me to set number of threads to 
> 10. request-timeout was 300 (then I change it, but log was for 300 seconds).

Graham

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