On Fri, Jun 05, 2015 at 08:18:17AM -0400, Jeff King wrote:
> On Fri, Jun 05, 2015 at 12:01:16PM +, steve.nor...@thomsonreuters.com
> wrote:
>
> > On Sunday, May 24, 2015 @ 10:01 AM Duy Nguyen [mailto:pclo...@gmail.com]
> > did scribble:
> >
> > > In case you want to back away from option 2
On Friday, June 05, 2015 @ 1:18 PM Jeff King [mailto:p...@peff.net] did
scribble:
> Sorry, I haven't had a chance to look at it further. It still on my todo
> list. My plan is:
>
> 1. Devise some torture to tests to see whether my patch series is in
> fact racy on Linux.
>
> 2. Assumin
On Fri, Jun 05, 2015 at 12:01:16PM +, steve.nor...@thomsonreuters.com wrote:
> On Sunday, May 24, 2015 @ 10:01 AM Duy Nguyen [mailto:pclo...@gmail.com] did
> scribble:
>
> > In case you want to back away from option 2 because it starts to leak
> > raciness, which your old commit tried to fix
On Sunday, May 24, 2015 @ 10:01 AM Duy Nguyen [mailto:pclo...@gmail.com] did
scribble:
> In case you want to back away from option 2 because it starts to leak
> raciness, which your old commit tried to fix in the first place. I
> think the only other place that tests for lots of non-existent loos
On Fri, May 22, 2015 at 2:12 PM, Jeff King wrote:
> So I think there are two possibilities for improving this:
>
> 1. Find places where we expect the object will not exist (like the
> collision_test check you pointed out) and use a
> "has_sha1_file_fast" that accepts that it may very o
On Friday, May 22, 2015 @ 11:06 AM Duy Nguyen did write:
> Strange. Maybe there is something else... Anyway some numbers from me.
> This is nfs3 hosted by Raspberry Pi, accessed over wireless. I just
> run index-pack on git.git pack instead of full clone.
>
> - v1.8.4.1 34s
> - v1.8.4.2 519s (o
Duy Nguyen writes:
> Strange. Maybe there is something else... Anyway some numbers from me.
> This is nfs3 hosted by Raspberry Pi, accessed over wireless. I just
> run index-pack on git.git pack instead of full clone.
So the checkout codepath to touch working tree is one difference?
Are there ot
On Fri, May 22, 2015 at 3:35 PM, wrote:
> Tested this change on a couple of versions, first of all on the revision
> where things go wrong for me:
>
> ...
>
> ~ $ time git clone https://github.com/git/git test
>
> real0m8.263s
> user0m10.550s
> sys 0m3.763s
>
> ~ $ time git clone http
On Friday, May 22, 2015 @ 8:12 AM Jeff King did scribble:
> > In builtin/index-pack.c, replace the line "collision_test_needed =
> > has_sha1_file(sha1);" with "collision_test_needed = 0;". Security is
> > compromised but for this test it should be ok. Then clone again. I
> > hope the new number g
On Fri, May 22, 2015 at 07:16:54AM +0700, Duy Nguyen wrote:
> > Is there anything else I can provide or test?
>
> In builtin/index-pack.c, replace the line "collision_test_needed =
> has_sha1_file(sha1);" with "collision_test_needed = 0;". Security is
> compromised but for this test it should be
On Thu, May 21, 2015 at 10:53 PM, wrote:
> On Thu, May 21, 2015a at 9:31 PM, Duy Nguyen [mailto:pclo...@gmail.com], did
> scribble:
>> > In case an object is not found pack directory is re-read again, which
>> > might cause some increased load on nfs.
>> > has_sha1_file() not finding the object
On Thu, May 21, 2015a at 9:31 PM, Duy Nguyen [mailto:pclo...@gmail.com], did
scribble:
> > In case an object is not found pack directory is re-read again, which
> > might cause some increased load on nfs.
> > has_sha1_file() not finding the object should not happen often..
>
> That last statement
On Thu, May 21, 2015 at 9:31 PM, Duy Nguyen wrote:
> In case an object is not found pack directory
> is re-read again, which might cause some increased load on nfs.
> has_sha1_file() not finding the object should not happen often..
That last statement is probably very wrong, but I have no time to
On Thu, May 21, 2015 at 8:13 PM, wrote:
> So there appears to be a change in 1.8.4.2 that made this issue appear for
> me. Looking at the release notes the only thing that I can see that might be
> related could be:
>
> * When an object is not found after checking the packfiles and then
>
On Thu, May 21, 2015 at 3:13 PM, wrote:
[...]
> So the questions are:
>
> 1) Should I expect a clone to NFS to be that much slower?
> 2) Is there anything I could do to speed it up (I've tried --bare as that is
> what the repositories will be when stored on NFS and there wasn't really a
> dif
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