Andrea Arcangeli wrote: > > On Tue, 12 Sep 2000, Martin Dalecki wrote: > > >First of all: In the case of the mp3 player and such there is already a > >fine > >proper way to give it better chances on getting it's job done smooth - > >RT kernel sceduler priorities and proper IO buffering. I did something > >similiar > >to a GDI printer driver... > > Take 2.2.15, set a buffer of 128mbyte (of course assume your mp3 is larger > than 128mbyte :) and then run in background `cp /dev/zero .` in the same > fs where your mp3 file out of cache is living. Then you'll see why a large > buffer is useless if there's none kind of I/O fair scheduling into the > elevator. Repeat the same test in 2.2.16 then. > > The I/O latency Hans was taking about for the mp3 player, is the time it > takes for the buffer to become empty. I was talking about *proper* buffering not necessary *big* buffers. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
- Re: (reiserfs) Re: More on 2.2.18pre2aa2 James Sutherland
- Re: (reiserfs) Re: More on 2.2.18pre2aa2 Andrea Arcangeli
- Re: (reiserfs) Re: More on 2.2.18pre2aa2 Andrea Arcangeli
- Re: (reiserfs) Re: More on 2.2.18pre2aa2 Hans Reiser
- Re: (reiserfs) Re: More on 2.2.18pre2aa2 Chris Evans
- (reiserfs) Re: More on 2.2.18pre2aa2 Andrea Arcangeli
- Re: (reiserfs) Re: More on 2.2.18pre2aa2 Rik van Riel
- Re: (reiserfs) Re: More on 2.2.18pre2aa2 Martin Dalecki
- (reiserfs) Re: More on 2.2.18pre2aa2 Rik van Riel
- (reiserfs) Re: More on 2.2.18pre2aa2 Andrea Arcangeli
- Re: (reiserfs) Re: More on 2.2.18pre2aa2 Martin Dalecki
- Re: (reiserfs) Re: More on 2.2.18pre2aa2 Andrea Arcangeli
- Re: (reiserfs) Re: More on 2.2.18pre2aa2 Martin Dalecki
- Re: (reiserfs) Re: More on 2.2.18pre2aa2 Rik van Riel
- Re: (reiserfs) Re: More on 2.2.18pre2aa2 Michael T. Babcock
- Re: (reiserfs) Re: More on 2.2.18pre2aa2 Ragnar Kjørstad
- Re: (reiserfs) Re: More on 2.2.18pre2aa2 Rik van Riel
- Re: (reiserfs) Re: More on 2.2.18pre2aa2 Ragnar Kjørstad
- Re: (reiserfs) Re: More on 2.2.18pre2aa2 Rik van Riel
- Re: (reiserfs) Re: More on 2.2.18pre2aa2 Ragnar Kjørstad
- Re: (reiserfs) Re: More on 2.2.18pre2aa2 James Sutherland