[FFmpeg-user] Performance tuning FFMPEG under VMware
Henk D. Schoneveld
belcampo at zonnet.nl
Thu Dec 12 22:00:22 CET 2013
On 12 Dec 2013, at 20:25, Forrest Aldrich <forrie at gmail.com> wrote:
> We have been running FFMPEG on real-iron hardware for a while; we're now trying it under VMware VMs. I've noticed a performance degradation -- which I partially expected.
> There are lots of folks out there running FFMPEG like this, in large transcoding farms (Yahoo/Google?) so I'm hoping for some really useful information.
> If you have 2 cores and a max CPU speed of 3ghz, the speed is divided between the two cores. So, does that make two cores more efficient than one, at full speed?
1 core 20fps
2 cores 37fps
3 cores 44fps
4 cores 47fps
with 4 ffmpeg single core instances " -r 1” you’ll get 4 x 20 = 80fps.
> Thank you in advance...
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