clipka wrote:

> Am 20.01.2014 08:39, schrieb Ger:
>> I had a render running that's pretty big (20GB mem use)
>                                             ^^^^^^
>> and it fails with a "Operation timed out" problem.
> ...
>> My guess is that pov times out waiting for the swap somehow.
>                                   ^^^^^^^^^^^^^^^^^^^^
> ...
>> Running Povray 3.7 with the -CC switch on Opensuse 13.1 on a 16GB 8-core
>                                                                ^^^^^^
> Bad idea (thought not nearly as bad as on a Windows machine).
> 
> 
>> Btw, I've had renders of similar size, and larger, running under Povray
>> 3.6 And even though they chewed the heck outta the swap drive, they never
>> timed out.
>                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> As speed doesn't seem to be a matter for you, trying to lower the number
> of competing threads using +WT4 or some such could be worth trying. With
> the swap drive surely being the bottleneck, you might even consider
> +WT1, reducing page thrashing to the absolute minimum possible in this
> setup.
> 
> Note that the more worker threads you have, the less coherent
> consecutive memory accesses will be.

Sounds logical. I'll give the +WT1 option a go and see what happens
As a side note, when the actual render starts it never drops below 95% CPU usage until
it finishes.

-- 

Ger

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