is it possible to connect to memcached and check in access phase?
eugaia at gmail.com
Mon Feb 23 16:11:43 MSK 2009
Manlio Perillo wrote:
> Marcus Clyne ha scritto:
>>> However, if the memcached serve is on localhost, and since the data
>>> you exchange is small, it should be safe to use socket in blocking
>> A few months ago I wrote a basic Nginx module using both the newer
>> libmemcached library and the older libmemcache by Sean Chittenden to
>> get a value from memcached and set an Nginx variable. Both were
>> blocking (i.e. didn't use an asynchronous approach), and I only
>> tested them on a local installation of memcached. The quicker of the
>> two was the older libmemcache library (by quite a lot, actually),
>> probably because the code itself is simpler.
> So, I suspect that a self written client should be even more quicker.
Yes, I would have thought so too, especially if you're only connecting
to one memcached server.
> Did you use a persistent TCP connection?
> And you can also use UDP.
I didn't try this.
Overall, the performance was clearly most affected by the fact that it
was blocking. An async version I think would show much better results
and closer together, because while being blocking the performance hit is
multiplicative but as async it would be linear.
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