is 2.0.2 not as efficient as 1.1.2 was?

Barry Abrahamson barry at automattic.com
Tue Feb 10 18:22:04 CET 2009


On Feb 4, 2009, at 1:53 PM, Poul-Henning Kamp wrote:

> In message <37EADDE4-A23A-4204-B04A-46D47D348D7A at automattic.com>,  
> Barry Abraham
> son writes:
>
>>> This week we upgraded to 2.0.2 and are using varnish's back end &
>>> director configuration for the same work.  What we are seeing is  
>>> that
>>> 2.0.2 holds about 60% of the objects in the same amount of cache  
>>> space
>>> as 1.1.2 did (we tried tcmalloc, jemalloc, and mmap.)
>
> Your description does not make it obvious to me what is causing this
> but one candidate could be the stored hash-string, in particular if
> your URLS are long.
>
> The new purge code (likely included in 2.0.3, but already available
> in -trunk) dispenses with the need to store the hash-string so theory
> could be tested.

Upgraded to trunk, didn't help.

--
Barry Abrahamson | Systems Wrangler | Automattic
Blog: http://barry.wordpress.com









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