Alex Karasulu wrote:
I should be able to get a hold of an 8-way Xeon system in January sometime. I will be able to place the order for it on the 2nd.
Sounds great, thanks Alex.
Interestingly, while 2 cores can get over 13,000 auths/second, and 4 cores can get around 25,000 auths/second (using back-hdb), with all 8 cores it's only peaking at 29,000 auths/second. This tells me it's better to run two separate slapds in a mirrormode configuration on this box (4 cores per process) than to run a single process across all of the cores. Then I'd expect to hit 50,000 auths/second total, pretty close to the limits of the ethernet device/driver.
Well, I guessed wrong. The peak with two separate processes was still the same, 29,000 auths/second. Interestingly, the peak with only 6 cores was about 31,000 auths/second. It appears that we're memory bandwidth-limited.