[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH] block: Give always priority to unused entries i
From: |
Alberto Garcia |
Subject: |
Re: [Qemu-devel] [PATCH] block: Give always priority to unused entries in the qcow2 L2 cache |
Date: |
Fri, 6 Feb 2015 14:46:29 +0100 |
User-agent: |
Mutt/1.5.20 (2009-06-14) |
On Fri, Feb 06, 2015 at 12:18:07PM +0100, Kevin Wolf wrote:
> > I wanted to measure the actual impact of this, so I modified the
> > current code to implement a quick and dirty LRU algorithm and made
> > some numbers.
>
> Cool, thanks. I think switching to an LRU algorithm is an option
> that might make sense for the general case, so this is something to
> consider.
I'm anyway sharing the implementation in case you want to give it a
look.
> I was going to suggest a test run for a different scenario, like
> with many interleaved sequential reads, but thinking a bit more
> about how to do it so that the eviction algorithm could make a
> significant change, it occurred to me that it might not be all that
> easy (and therefore possibly not practically relevant either).
Yes, that was exactly my point.
Thanks a lot for your comments and quick review,
Berto
lru.diff
Description: Text Data
- [Qemu-devel] [PATCH] block: Give always priority to unused entries in the qcow2 L2 cache, Alberto Garcia, 2015/02/05
- Re: [Qemu-devel] [PATCH] block: Give always priority to unused entries in the qcow2 L2 cache, Max Reitz, 2015/02/05
- Re: [Qemu-devel] [PATCH] block: Give always priority to unused entries in the qcow2 L2 cache, Alberto Garcia, 2015/02/05
- Re: [Qemu-devel] [PATCH] block: Give always priority to unused entries in the qcow2 L2 cache, Max Reitz, 2015/02/05
- Re: [Qemu-devel] [PATCH] block: Give always priority to unused entries in the qcow2 L2 cache, Kevin Wolf, 2015/02/05
- Re: [Qemu-devel] [PATCH] block: Give always priority to unused entries in the qcow2 L2 cache, Alberto Garcia, 2015/02/05
- Re: [Qemu-devel] [PATCH] block: Give always priority to unused entries in the qcow2 L2 cache, Alberto Garcia, 2015/02/06
- Re: [Qemu-devel] [PATCH] block: Give always priority to unused entries in the qcow2 L2 cache, Kevin Wolf, 2015/02/06
- Re: [Qemu-devel] [PATCH] block: Give always priority to unused entries in the qcow2 L2 cache,
Alberto Garcia <=
Re: [Qemu-devel] [PATCH] block: Give always priority to unused entries in the qcow2 L2 cache, Kevin Wolf, 2015/02/06