[MPlayer-users] mplayer + heavy io: why ionice doesn't help?

[Corey Hickey]

The Wanderer wrote:
>>>> I noticed that mplayer's video playback starts to skip if I do
>>>> some serious copying or grepping on the disk with movie being
>>>> played from.
>>>>
>>>> nice helps, but does not eliminate the problem. I guessed that
>>>> this is a problem with mplayer failing to read next portion of
>>>> input data in time, so I used Jens's ionice.c from
>>>> Documentation/block/ioprio.txt
>>>
>>> (Where is this path located? It certainly isn't part of the MPlayer
>>> source tree.)
>>
>> In the Linux kernel source, it seems.
> 
> Ah. Must be a different version; there is no ioprio.txt on my system,
> even though I have about six different versions of the kernel source
> code in various places.

Looks like it showed up in 2.6.13 and has remained unchanged since then 
until at least 2.6.17 (the latest patch I have).

-Corey