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Re: RAM requirements- new server
Posted by: Rick James
Date: April 02, 2009 09:02PM

innodb_flush_log_at_trx_commit=0 -- one of the faster options. =1 is safer, but slow on cheap disk drives. -1 might be fast with your h/w RAID, assuming it has a write cache. Gory details:
http://mysql.secsup.org/doc/refman/5.1/en/innodb-parameters.html#sysvar_innodb_flush_log_at_trx_commit

"100 and 400 queries per second" -- I've seen InnoDB do a few thousand. Of course, it depends on how complicated each is.

I strongly recommend summary table(s). It can solve lots of perf problems (in certain situations, such as yours).

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