[pve-devel] [PATCH] Increases the dd read/write speed when migrating LVM disks. This should bring LVM migration speed up to match that of rsyncing qcows.

[James Lavoy]

Anybody? Did I not submit this properly?

On Tue, Dec 13, 2016 at 10:13 PM, James Lavoy <jalavoy at gmail.com> wrote:

> Sorry to resurrect an old thread here, but I was expecting this to get
> implemented by now. Have I not done something I need to to get some form of
> this patch merged? LVM Migrations continue to be unnecessarily slow.
>
> On Wed, Sep 7, 2016 at 1:32 AM, James Lavoy <jalavoy at gmail.com> wrote:
>
>> I'm okay with 4K. Again, anything other than default is fine by me.
>>
>> On Thu, Aug 25, 2016 at 3:55 AM, Wolfgang Bumiller <
>> w.bumiller at proxmox.com> wrote:
>>
>>> On Wed, Aug 24, 2016 at 07:19:04PM +0200, Dietmar Maurer wrote:
>>> > I am afraid that increasing block size is bad for sparse file
>>> detection.
>>> >
>>> > Seems dd simply use "bs" for for memory buffer and zero block
>>> detection?
>>>
>>> The speed values for 4k look acceptable though? Might be a good
>>> compromise?
>>>
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>>
>>
>