On Wed, 18 Dec 2019, Joe Thornber wrote:
> On Sun, Dec 15, 2019 at 09:44:49PM +, Eric Wheeler wrote:
> > I was looking through the dm-bio-prison-v2 commit for dm-cache (b29d4986d)
> > and it is huge, ~5k lines. Do you still have a git branch with these
> > commits in smaller pieces (not
On Sun, Dec 15, 2019 at 09:44:49PM +, Eric Wheeler wrote:
> I was looking through the dm-bio-prison-v2 commit for dm-cache (b29d4986d)
> and it is huge, ~5k lines. Do you still have a git branch with these
> commits in smaller pieces (not squashed) so we can find the bits that
> might be
On Fri, 13 Dec 2019, Eric Wheeler wrote:
> On Fri, 6 Dec 2019, Nikos Tsironis wrote:
> > On 11/22/19 8:55 PM, Joe Thornber wrote:
> > > On Fri, Nov 22, 2019 at 11:14:15AM +0800, JeffleXu wrote:
> > >
> > > > The first question is what's the purpose of data cell? In
> > > > thin_bio_map(),
> > >
On Fri, 6 Dec 2019, Nikos Tsironis wrote:
> On 11/22/19 8:55 PM, Joe Thornber wrote:
> > On Fri, Nov 22, 2019 at 11:14:15AM +0800, JeffleXu wrote:
> >
> > > The first question is what's the purpose of data cell? In thin_bio_map(),
> > > normal bio will be packed as a virtual cell and data cell. I
On 11/22/19 8:55 PM, Joe Thornber wrote:
On Fri, Nov 22, 2019 at 11:14:15AM +0800, JeffleXu wrote:
The first question is what's the purpose of data cell? In thin_bio_map(),
normal bio will be packed as a virtual cell and data cell. I can understand
that virtual cell is used to prevent discard
Thanks Joe, great writeup. Maybe this should go in thin-provisioning.txt.
More below:
On Wed, 4 Dec 2019, Joe Thornber wrote:
> (These notes are for my own benefit as much as anything, I haven't
> worked on this for a couple of years and will forget it all completely
> if I don't write it down
(These notes are for my own benefit as much as anything, I haven't
worked on this for a couple of years and will forget it all completely
if I don't write it down somewhere).
Let's start by writing some pseudocode for what the remap function for
thin provisioning actually does.
On Mon, Dec 02, 2019 at 10:26:00PM +, Eric Wheeler wrote:
> Hi Joe,
>
> I'm not sure if I will have the time but thought I would start the
> research and ask a few questions. I looked at the v1/v2 .h files and some
> of the functions just change suffix to _v2 and maybe calling
>
On Mon, 2 Dec 2019, JeffleXu wrote:
> 在 2019/11/23 上午2:55, Joe Thornber 写道:
>
> > On Fri, Nov 22, 2019 at 11:14:15AM +0800, JeffleXu wrote:
> >
> > > The first question is what's the purpose of data cell? In thin_bio_map(),
> > > normal bio will be packed as a virtual cell and data cell. I can
>
Thanks for replying and explanation.
Anyway, it seems a significant workload to transform to bio-prison-cell-v2.
Regards
Jeffle
在 2019/11/23 上午2:55, Joe Thornber 写道:
On Fri, Nov 22, 2019 at 11:14:15AM +0800, JeffleXu wrote:
The first question is what's the purpose of data cell? In
On Fri, Nov 22, 2019 at 11:14:15AM +0800, JeffleXu wrote:
> The first question is what's the purpose of data cell? In thin_bio_map(),
> normal bio will be packed as a virtual cell and data cell. I can understand
> that virtual cell is used to prevent discard bio and non-discard bio
> targeting
Hi guys,
I have several questions on dm-thin when I'm testing and evaluating IO
performance of dm-thin. I would be grateful if someone could spend a
little time on it.
The first question is what's the purpose of data cell? In
thin_bio_map(), normal bio will be packed as a virtual cell and
Hi guys,
I have several questions on dm-thin when I'm testing and evaluating IO
performance of dm-thin. I would be grateful if someone could spend a
little time on it.
The first question is what's the purpose of data cell? In
thin_bio_map(), normal bio will be packed as a virtual cell and
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