geoff wrote:
>
> There does appear to be this win32api.GlobalMemoryStatusEx().
>   

It wasn't in mine (I checked there first!), but I am a couple of
releases behind.

> In monitoring my system before and after the process crashed, it
> yielded this result below
> - it is supposed to be a table, but I think the HTML is mangling the 
> formatting.
>
>                  key:                 start          crash            (       
>  diff)
>        TotalPageFile:   6256201728      6256201728    (           0)
>         AvailVirtual:   2068193280       346382336    ( -1721810944)
>           MemoryLoad:           33                      73            (       
>    40)
>            TotalPhys:   4284137472      4284137472    (           0)
> AvailExtendedVirtual:            0                       0            (       
>     0)
>               Length:           64              64            (           0)
>         TotalVirtual:   2147352576      2147352576    (           0)
>            AvailPhys:   2849738752      1146531840    ( -1703206912)
>        AvailPageFile:   4721647616      3014774784    ( -1706872832)
>   

So, you have used 1.7GB of your 2GB.  It's likely that the remaining
350MB is so badly fragmented that you can't get a single chunk as large
as you need.

> If understand your guidance above, monitoring the 'AvailVirtual'
> should allow be to intelligently guess when the user is approaching
> the 'cliff' as the process is running.
>   

Yes, indeed.

> And I would think that examining the AvailPhys should tell me before
> the process starts if there might be a problem/issue with the system
> doing some sort of memory swapping/caching to the pagefile ?
>   

I would caution you not to draw any conclusions based on the physical
numbers.  You WANT your system to be using all of its physical memory. 
Unused physical memory is just wasted money.  The operating system will
page things in and out as needed, on a demand basis, to make sure that
pages you are really USING stay in memory.  The other pages will be used
by DLLs, other processes, and disk caching.  Also remember that, if the
page file gets low, the system will allocate more.

-- 
Tim Roberts, t...@probo.com
Providenza & Boekelheide, Inc.

_______________________________________________
python-win32 mailing list
python-win32@python.org
http://mail.python.org/mailman/listinfo/python-win32

Reply via email to