[ic] CPU upgrade for IC server?

Grant emailgrant at gmail.com
Wed Jun 17 05:23:15 UTC 2009

>> I'm accumulating more and more jobs that I like to have run daily. They
>> started out running in the middle of the night, but they're creeping
>> over into real traffic hours.  Right now I've got a P4 single-core
>> 2.8Ghz CPU and 1GB RAM.  Would a CPU upgrade be likely to execute the
>> jobs more quickly?
> Only if they're very CPU-intensive, which many jobs aren't.
>> Would it make the website more responsive while jobs are running?
> Yes, as long as your Interchange processes aren't blocking on database
> locks. For example, when using MySQL with MyISAM tables, any write
> (insert/update/delete) locks the entire table while it's being done. If
> your jobs are doing lots of database writes there, you'll be blocking your
> Interchange reads no matter how much CPU horsepower you have.
> If you are using MySQL with InnoDB tables, or PostgreSQL, or most other
> SQL databases, your reads & writes will coexist much better.
> In general these days it's nice to have several CPU cores free for serving
> customer traffic, and if you do batch jobs or back-end administration, at
> least one CPU core for that. Assuming traffic levels warrant the
> investment.
> Jon

IC is able to take advantage of 4 cores?  Maybe so because it uses
multiple processes?

- Grant

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