Tips For Speeding Up Filters

[user_deleted]

Do you guys experience slow processing on any filter that creates a blur? For instance, dirBlur in radial mode with a blur length of 165 (propeller) literally takes 10 minutes a frame for an area no larger than say 300x300 of screen space. Now that you've helped me solve the vectorBlur situation, it's not economical to process it! GGRRR....

The workstation isn't large but it seems it should preform better than this.

Specs:
AMD Athlon 64 3200+ (2.2ghz)
1GB RAM
NVIDIA QuadroFX 3000
Windoze XP

[user_deleted]

Are you using a ROI to limit the amount of processed pixels to a minimum?
How many channels are you processing?

With one proc that could be what you will have to face using such extreme settings.

Looks like the DirBlur doesn't like putting up with just one cpu, the differences are amazing.
Here is a quick benchmark test applying a 165 pixel dirBlur (radial) to a 500x500 pixel roi on a 2k square frame with 16 channels:

1 cpu: 12 minutes 39 sec
2 cpus: 1 minute 38 sec
3 cpus: 1 minute 5 sec
4 cpus: 49 sec

this is on a dual core opteron 285 - 2.61 GHz (windows xp)

[user_deleted]

holy crap, that's an incredible difference. A bummer for sure, but a hell of a change. Thanks for doing the test.

[goee]

Here processing RGBA channels in a 512x512 takes no more then 15 seconds with a Blur Lenght of 200. Running in a Dual Xeon Dual Core, 3.0ghz with HT off on Windows XP Pro SP2.

With HT on this would simply take a week to show up.

[user_deleted]

sucks to be me I guess , thanks

[goee]

Maybe your problem is called AMD

Nuke uses Intel extensions, so I belive it's optimized for Intel procs.

Check your plugin folders and you'll see some files with .w2k_intel extensions, and guess whos there --> DirBlur.w2k_intel.

Check with D2 if they can help you out.

Cheers,

[user_deleted]

It seems as thought it has more to do with multiple procs than brand, although the intel extension would seem quite logical. Reuter's test above was on AMD Opterons. Granted, they are a new proc than mine and may handle different extensions, but AMD they is.

It's fairly irrelevent anyhoo, no upgrades for me anytime soon...