Re: Bandwidth Allocations under CFQ I/O Scheduler

On Wed, Oct 18, 2006 at 03:04:57PM +0200, Jens Axboe wrote:
...
So you could say you want your database to consume no more than 50%
of disk and have your mp3 player get a minimum of 10%. Of course,
that doesn't say anything about what the time slices are, or what
latencies you can expect (1s out of every 10, or 100ms out of every
1000?).

As I wrote previously, both a percentage and bandwidth along with
desired latency make sense.

The fundamental problem I see, is, that while you can easily measure and
limit the bandwidth, you cannot really make bandwidth guarantees.

All the rest sounds great in my ears :)

--

/ jakob

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