[FFmpeg-user] fMP4 generation speed

Carl Zwanzig cpz at tuunq.com
Sat Jun 23 00:03:58 EEST 2018

On 6/22/2018 1:37 PM, Ronak wrote:
> We have audio files that are more than 100 hours long, and we need them
> to be fragmented quickly. It totally seems like there's an I/O problem
> here because fragmentation is faster the longer we set our fragment size
> to.
Sounds like it's time to break out iostat or sar (or even dtrace) and do 
some snooping.

Are you reading and writing to different drives?  (The usual metric for a 
spinning drive is 150 IOPS for random access, RAID doesn't necessarily speed 
that up.)



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