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From Damien Katz <dam...@apache.org>
Subject Re: Tail Append Headers
Date Wed, 20 May 2009 15:34:09 GMT

On May 20, 2009, at 11:26 AM, Paul Davis wrote:

> On Wed, May 20, 2009 at 11:22 AM, Damien Katz <damien@apache.org>  
> wrote:
>>
>> On May 20, 2009, at 11:09 AM, Damien Katz wrote:
>>>
>>> Previously, only btree nodes were saved compressed and docs were  
>>> not. I
>>> didn't realize the compression was so expensive, but now that I  
>>> switch it
>>> off on both the branch and on trunk, I see big performance boosts  
>>> for both.
>>> And now the tail append stuff is slightly faster on my machine.
>>
>> To clarify, disabling the compression completely on both trunk and  
>> the
>> branch results in big performance increases for both, with the  
>> tail_header
>> branch now being slightly faster than trunk running the lightning  
>> test on my
>> machine.
>>
>> -Damien
>>
>
> Awesome. Is there a noticeable size difference on the database files?

It looks to take about 2x as much diskspace as without compression.

-Damien


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