x264 Speed Patch Thread

[Dark Shikari]

http://x264.nl/x264_dark_pengvado.jpg

Cache Split + Fast-Ref-Search (http://mirror05.x264.nl/Dark/force.php?file=./x264.697.fast-ref-search.01.exe), latest SVN build. Cache Split Only, latest SVN build (http://mirror05.x264.nl/Dark/force.php?file=./x264.697.exe). Also the pre-cache-split SVN 694, compiled with the same settings, for comparison (http://mirror05.x264.nl/Dark/force.php?file=./x264.694.exe).

Have fun, and report all bugs/dissatisfaction to me (fast-ref-search) or akupenguin (cache-split) :)

For maximum effect, use UMH and multiple reference frames.

Example comparison, --ref 8 --partitions all --bframes 16 --merange 32 --me umh --bime --subme 7 --weightb --mixed-refs --8x8dct --no-fast-pskip --direct auto --b-pyramid --progress --trellis 1 --crf 25

Original SVN: 38.053 OPSNR, 3005.28 kbps, 1.38 FPS
This build: 38.062 OPSNR, 3032.09 kbps, 2.00 FPS

[Sagekilla]

Dark Shikari, if you don't mind me asking (I wasn't here for a few days) can you direct me to a link or explain what the cache split patch is supposed to do?

I did a search but I can't seem to find it.

[Dark Shikari]

Dark Shikari, if you don't mind me asking (I wasn't here for a few days) can you direct me to a link or explain what the cache split patch is supposed to do?

I did a search but I can't seem to find it.Some posts in this thread (http://forum.doom9.org/showthread.php?t=131879) explain it. Its basically a free speed boost for motion searching operations on all Intel processors.

[kumi]

Thanks for the build. (cute logo, too!)

Just to be clear, there's no change at all for any type of AMD processor with the cache-split patch?

[Dark Shikari]

Thanks for the build. (cute logo, too!)

Just to be clear, there's no change at all for any type of AMD processor with the cache-split patch?There shouldn't be.

[Zanejin]

Revision 696 on the SVN seems to have applied the cache-split patch. Guess it can be removed from the first post to prevent confusion.

And great work on fast-ref-search, Dark Shikari! The speed-up is truly quite significant.

[Dark Shikari]

Holy crap, that is a tremendous patch (http://trac.videolan.org/x264/changeset/696) :scared:

Damn good job Akupenguin.

[audyovydeo]

build fps bitrate ssim
dark shikari's 697 8.81 1478.5 0.9255424
svn 697 8.24 1470 0.9255278
6.92% 0.58% 0.0016%

dark shikari's 697 2.93 6223.4 0.947035
svn 697 2.63 6219 0.9464538
11.41% 0.07% 0.0614%


dark shikari's 697 7.71 1691.8 0.9596029
svn 697 6.92 1686.4 0.9595478
11.42% 0.32% 0.0057%


This for 720x576x25fps content on my C2D 1.6 GHz

very good job, Dark Shikari !!
Now let's land this feature on the SVN ....

cheers
audyovydeo