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Re: svn commit: r34088 - trunk/subversion/libsvn_fs_fs

From: David Glasser <glasser_at_davidglasser.net>
Date: Fri, 7 Nov 2008 07:47:58 -0800

I'd like to keep it off by default until I see a solid case made with
benchmarks etc that the space gain is more noticeable than the speed
loss.

(And I still want it reverted before 1.6 if the concurrency bugs aren't fixed.)

--dave

On Fri, Nov 7, 2008 at 1:16 AM, Ivan Zhakov <ivan_at_visualsvn.com> wrote:
> On Fri, Nov 7, 2008 at 12:48 AM, Hyrum K. Wright
> <hyrum_wright_at_mail.utexas.edu> wrote:
>> hwright_at_tigris.org wrote:
>>> Author: hwright
>>> Date: Thu Nov 6 13:43:15 2008
>>> New Revision: 34088
>>>
>>> Log:
>>> Allow FSFS rep-caching to be configurable.
>>
>> The question now becomes what's the default. Currently, it's set to "off"
>> mostly due to status quo bias. However, I think there's a strong case for "on".
>> The ones who want the better runtime performance are the ones who will probably
>> feel more comfortable configuring their FS. These are the large,
>> high-concurrency users, and there probably aren't too many of them.
>>
>> On the other hand, the small teams are ones who will just stick with whatever
>> the default is, and are probably on more limited disk and hardware systems. It
>> makes sense to enable rep-sharing by default for these users.
>>
> I'd like to keep this feature off by default. It will be regression if
> we enable rep-sharing by default:
> performance slowdown and possible colision and hacking. On other hand
> is some kind of improvement for some groups of customers.
>
> So it's better prevent regression than introduce some improvement.
>
> --
> Ivan Zhakov
> VisualSVN Team
>
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-- 
David Glasser | glasser@davidglasser.net | http://www.davidglasser.net/
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Received on 2008-11-07 16:48:19 CET

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