On 04/10/2010 11:49 PM, Jason Garrett-Glaser wrote:
3-5% improvement. I had to tune khugepaged to scan more aggressively since
the run is so short. The working set is only ~100MB here though.
I'd try some longer runs with larger datasets to do more testing.
Some things to try:
1) Pick a 1080p or even 2160p sequence from http://media.xiph.org/video/derf/
Ok, I'm downloading crown_run 2160p, but it will take a while.
2) Use --preset ultrafast or similar to do a ridiculously
memory-bandwidth-limited runthrough.
Large pages improve random-access memory bandwidth but don't change
sequential access. Which of these does --preset ultrafast change?
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