[PATCH 2 of 4] obsstore: disable garbage collection during initialisation (issue4456)

[Pierre-Yves David]

On 11/30/2014 05:06 AM, Antoine Pitrou wrote:
> On Sat, 29 Nov 2014 17:57:42 -0800
> Pierre-Yves David <pierre-yves.david at ens-lyon.org> wrote:
>> # HG changeset patch
>> # User Pierre-Yves David <pierre-yves.david at fb.com>
>> # Date 1417049911 28800
>> #      Wed Nov 26 16:58:31 2014 -0800
>> # Node ID d0f3dac4ea2b4aff51946c7db0834aa4e5c3e82a
>> # Parent  04eb7e49d2b6f90f71aa85de9ad0b4d70670d688
>> obsstore: disable garbage collection during initialisation (issue4456)
>>
>> Python garbage collection is triggered by contained creation. So code that
>> creates a lot of tuple tends to trigger GC a lot. We disable the gc during
>> obsolescence marker parsing and associated initialization. The provide and
>> interesting speedup (25%).
>>
>> On my 58758 markers repo:
>> before: 0.468247 seconds
>> after:  0.344362 seconds
>
> Which Python version is that?

Python 2.7.8 (default, Oct 18 2014, 12:50:18)
[GCC 4.9.1]

-- 
Pierre-Yves David