That's a lot, and excellent; thanks.
James Gates wrote:
> I've added the following summary to the details section of the 1pager:
>
> memcached is a high-performance, distributed memory object caching
> system, generic in nature, but intended for use in speeding up
> dynamic web applications by alleviating database load.
>
> Danga Interactive developed memcached to enhance the speed of
> LiveJournal.com, a site which was already doing 20 million+
> dynamic page views per day for 1 million users with a bunch of
> webservers and a bunch of database servers. memcached dropped the
> database load to almost nothing, yielding faster page load times
> for users, better resource utilization, and faster access to the
> databases on a memcache miss.
>
> How it Works
>
> First, you start up the memcached daemon on as many spare machines
> as you have. The daemon has no configuration file, just a few
> command line options, only 3 or 4 of which you'll likely use:
>
> # ./memcached -d -m 2048 -l 10.0.0.40 -p 11211
>
> This starts memcached up as a daemon, using 2GB of memory, and
> listening on IP 10.0.0.40, port 11211. Because a 32-bit process
> can only address 4GB of virtual memory (usually significantly
> less, depending on your operating system), if you have a 32-bit
> server with 4-64GB of memory using PAE you can just run multiple
> processes on the machine, each using 2 or 3GB of memory.
>
> Now, in your application, wherever you go to do a database query,
> first check the memcache. If the memcache returns an undefined
> object, then go to the database, get what you're looking for, and
> put it in the memcache.
>
>
> Dan Mick wrote:
>> David.Comay at Sun.COM wrote:
>>
>>>> I have asked Roy to provide a one paragraph summary that I can add to
>>>> the 1pager. But in the meantime, you can read
>>>> http://www.danga.com/memcached/ and
>>>> http://en.wikipedia.org/wiki/Memcached
>>>
>>>
>>> Also as this is a version update to a previous case, you can find out
>>> more about memcached by looking at the earlier case, LSARC/2007/385.
>>> In particular,
>>>
>>> LSARC/2007/385/commitment.materials.final/questionnaire.txt
>>>
>>> dsc
>>
>>
>> yes, although one sentence in the current case is pretty low-cost.
