[argyllcms] Re: Multithreading support
- From: Vladimir Gajic <vgajic67@xxxxxxxxxxxxxx>
- To: "argyllcms@xxxxxxxxxxxxx" <argyllcms@xxxxxxxxxxxxx>
- Date: Wed, 16 Apr 2014 11:28:24 +0200
Hello Michael,
check the Argyll docs (performance tuning). I had the same problem some
time ago. There are two parameters you can adjust to increase performance:
ARGYLL_REV_ACC_GRID_RES_MULT and ARGYLL_REV_CACHE_MULT
Setting the ARGYLL_REV_ACC_GRID_RES_MULT to a value of 2 helped me to
increase the performance to approx. 200%. This parameter refers to the
B2A-table creation.
Regards
Vladimir
2014-04-16 4:23 GMT+02:00 Michael Darling <darlingm@xxxxxxxxx>:
> Any thoughts of making Argyll threaded?
>
> In a many hour colprof run. (I know the docs say -qu over -qh doesn't do
> anything but run slower, but I want to see it.)
>
> I know speeding up -qu must not be high on the priority list, but this
> (presumably) would speed up the other modes as well.
>
> It's bouncing between 12% and 13% CPU usage. 8 logical cores on my
> machine, so looks like it isn't threaded. I'm assuming the operation here
> has parallel elements to benefit from threading, but I could of course be
> wrong.
>
> The long stage is the "There are 2 rev cache instances with 10241 Mbytes
> limit" part.
>
> Also, 48GB of memory and it's only using 1.4GB. Not sure if using more
> would make a difference, or exactly what the rev cache Mbytes limit is all
> about.
>
--
Vladimir Gajic
[fineART imaging]
Grünebergstr. 85
22763 Hamburg
Germany
Phone: +4940 18174180
GSM: +49176 63645405
mailto: vgajic67@xxxxxxxxxxxxxx
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