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From Peter Schuller <peter.schul...@infidyne.com>
Subject Re: Poor performance on small data set
Date Fri, 11 Mar 2011 16:44:15 GMT
> There is less than 1000 rows and i've got a 75-100ms to get one row by id
> With memcached it's 2ms....
>
> I don't know where is the problem. jvm ? cassandra ? phpcassa ?
>
> What can i do to detect where is the problem ?

I'm not familiar with the PHP client, but this sounds suspiciously
like a nagle + delayed ACK problem. The PHP client probably isn't
setting the TCP_NODELAY flag (or the equivalent in Windows).

Google for "nagle delayed ack" for details.

-- 
/ Peter Schuller

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