Re: [PATCH -mm] [1/2] Remove Deadline I/O scheduler

From: Randy.Dunlap
Date: Thu Aug 03 2006 - 19:32:20 EST

On Thu, 3 Aug 2006 19:30:48 -0400 Dave Jones wrote:

> On Thu, Aug 03, 2006 at 03:57:32PM -0700, Nate Diller wrote:
> > This patch removes the Deadline I/O scheduler. Performance-wise, it
> > should be superceeded by the Elevator I/O scheduler in the following
> > patch. I would be very ineterested in hearing about any workloads or
> > benchmarks where Deadline is a substantial improvement over Elevator,
> > in throughput, fairness, latency, anything.
> Its somewhat hard for folks to offer comparative benchmarks when you
> remove something. Without any numbers at all showing why your elevator
> is superior, removing anything seems very premature.
> I'm also not convinced that removing an elevator at all is a good idea,
> as it'll cause regressions for anyone who has boot scripts that set
> certain mounts to use deadline for eg.

Shouldn't the usual feature-removal in N months be used here?
if at all.

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