Re: [Qemu-devel] qcow2x

2011-08-05 Thread Kevin Wolf
Am 05.08.2011 15:16, schrieb Frediano Ziglio: > 2011/8/5 Kevin Wolf : >> Am 03.08.2011 15:39, schrieb Frediano Ziglio: >>> 2011/8/2 Kevin Wolf : Am 02.08.2011 17:29, schrieb Frediano Ziglio: >>> - L2 allocation can be done with relative data (this is not easy to do >>> with current cod

Re: [Qemu-devel] qcow2x

2011-08-05 Thread Frediano Ziglio
2011/8/5 Kevin Wolf : > Am 03.08.2011 15:39, schrieb Frediano Ziglio: >> 2011/8/2 Kevin Wolf : >>> Am 02.08.2011 17:29, schrieb Frediano Ziglio: >> - L2 allocation can be done with relative data (this is not easy to do >> with current code) > > What do you mean by that? > >

Re: [Qemu-devel] qcow2x

2011-08-05 Thread Kevin Wolf
Am 03.08.2011 15:39, schrieb Frediano Ziglio: > 2011/8/2 Kevin Wolf : >> Am 02.08.2011 17:29, schrieb Frediano Ziglio: > - L2 allocation can be done with relative data (this is not easy to do > with current code) What do you mean by that? >>> >>> Let's take an example. By all

Re: [Qemu-devel] qcow2x

2011-08-03 Thread Frediano Ziglio
2011/8/2 Kevin Wolf : > Am 02.08.2011 17:29, schrieb Frediano Ziglio: - L2 allocation can be done with relative data (this is not easy to do with current code) >>> >>> What do you mean by that? >>> >> >> Let's take an example. By allocation I mean give a position to >> data/l2/refcount_ta

Re: [Qemu-devel] qcow2x

2011-08-02 Thread Kevin Wolf
Am 02.08.2011 17:29, schrieb Frediano Ziglio: >>> - L2 allocation can be done with relative data (this is not easy to do >>> with current code) >> >> What do you mean by that? >> > > Let's take an example. By allocation I mean give a position to > data/l2/refcount_table. Usually you cannot update/

Re: [Qemu-devel] qcow2x

2011-08-02 Thread Frediano Ziglio
2011/8/2 Kevin Wolf : > Am 02.08.2011 16:30, schrieb Frediano Ziglio: >> Hi, >>   I spent some time trying to find a way to speed up qcow2 performance >> on allocation and snapshot so I branch from kevin/coroutine-block >> branch a qcow2x branch. Currently it just write using different >> algorithm

Re: [Qemu-devel] qcow2x

2011-08-02 Thread Kevin Wolf
Am 02.08.2011 16:30, schrieb Frediano Ziglio: > Hi, > I spent some time trying to find a way to speed up qcow2 performance > on allocation and snapshot so I branch from kevin/coroutine-block > branch a qcow2x branch. Currently it just write using different > algorithm (that is is fully compatible

[Qemu-devel] qcow2x

2011-08-02 Thread Frediano Ziglio
Hi, I spent some time trying to find a way to speed up qcow2 performance on allocation and snapshot so I branch from kevin/coroutine-block branch a qcow2x branch. Currently it just write using different algorithm (that is is fully compatible with qcow2, there is not ICountAsZero(TM) method :) ).