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LWN.net Weekly Edition for May 23, 2013
An "enum" for Python 3
An unexpected perf feature
LWN.net Weekly Edition for May 16, 2013
A look at the PyPy 2.0 release
> Arjan suggested 20 minutes of video or a minute of audio.
A report from OSCON 2007
Posted Aug 3, 2007 17:19 UTC (Fri) by arjan (subscriber, #36785)
Posted Aug 4, 2007 13:56 UTC (Sat) by man_ls (subscriber, #15091)
Posted Aug 4, 2007 20:21 UTC (Sat) by arjan (subscriber, #36785)
(and on the actual datarate you have)
Posted Aug 5, 2007 1:05 UTC (Sun) by drag (subscriber, #31333)
As often as not I am reading audio from a cdrom and video from the harddrive. :)
Posted Aug 9, 2007 12:08 UTC (Thu) by arafel (subscriber, #18557)
Posted Aug 14, 2007 8:01 UTC (Tue) by nim-nim (subscriber, #34454)
It's much better to spin the media at a slow constant rate rather than stop and restart it all the time. Unless you can buffer long periods (at least 15-30 min of content)
Posted Aug 5, 2007 5:54 UTC (Sun) by akanaber (subscriber, #23265)
I'd guess it was "20 seconds of video".
Posted Aug 5, 2007 6:05 UTC (Sun) by akanaber (subscriber, #23265)
Whoops. I just noticed that some of the comments above were from arjan. Never mind, and sorry for the noise.
I was just a bit surprised at the idea of buffering 20 minutes of DVD video. That's certainly a large buffer.
Posted Aug 11, 2007 0:43 UTC (Sat) by giraffedata (subscriber, #1954)
I can't understand how there could possibly be a rule of thumb for this. Besides the fact that it's far from reliable to assume video is on optical storage and audio is on magnetic storage, there seems to be a huge assumption about how scarce memory is on the system.
If buffering 700MB means you have to push out of memory other stuff so that you then have to spin up a disk and get it back multiple times, it probably doesn't make sense.
But if there is 1400MB of memory essentially unoccupied, stopping at 20 minutes of buffering doesn't make much sense.
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