On 04/10/2010 11:24 PM, Avi Kivity wrote:
Oh, this tickled some memories: x264 compressed encoding can be very
cache and
TLB intense. Something like the encoding of a 350 MB video file:
wget http://media.xiph.org/video/derf/y4m/soccer_4cif.y4m #
NOTE: 350 MB!
x264 --crf 20 --quiet soccer_4cif.y4m -o /dev/null --threads 4
would be another thing worth trying with transparent-hugetlb enabled.
I'll try it out.
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.
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