improving concurrency/performance

Huaqing Zheng huasome at
Fri Nov 4 20:21:25 EST 2005

On 11/4/05, John Madden <jmadden at> wrote:
> I've had great experience with the performance of Cyrus thus far, but I'm testing
> a migration at the moment (via imapcopy) and I'm having some pretty stinky
> results.  There's no iowait (4 stripes on a 2Gbps SAN), no cpu usage, nothing
> waiting on the network, and still I'm seeing terrible performance.  I assume this
> points to something internal, such as concurrency on the db files.

Have you tried running something like postmark

to benchmark your filesystem?

Huaqing Zheng
Beer and Code Wrangler at Large

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