Re: why does throughput increase with number of connections even if it exceeds number of processors?

2011-09-06 Thread Andrew Moore
Hong, What you are seeing is probably your server's ability to keep up with your benchmark with some comfort. I assume your benchmark isn't completing in a couple of seconds but would presume that you are not IO bound and all changes are happening in memory. Its hard to give you 'the' answer as

Re: Seconds Behind the master 0 but in reality it's over 10 minutes or hours..

2011-09-06 Thread Kristian Davies
On Tue, Sep 6, 2011 at 6:12 AM, Rob Wultsch wult...@gmail.com wrote: Hm. It seems we have sort of ethernet segment saturation problem. A possible bandaid/quick fix is turning on compression for mysql replication. We've had this exact same issue with a dodgy/overused wan link. If you are