On Tue, 30 Nov 2004, N T wrote: > I am seeing that performance using MySQL 4.1.7 drops by a significant > amount if I use a FC2 kernel (2.6.8-1.521smp or 2.6.9-1.6_FC2smp) > compared to running a stock 2.6.9 kernel downloaded from kernel.org. > The vanilla kernel was compiled using the i686-smp config that FC2 > used. I see similar issues when running MySQL 4.0.xx. All MySQL > versions were installed from the RPMs available from > <http://www.mysql.com>. > > The benchmark being used to measure performance was RUBiS > <http://rubis.objectweb.org/>. While vanilla 2.6.9 can service ~220 > reqs/s, FC2's version of 2.6.9 can only deliver ~120 reqs/sec. > > I have a Dell Poweredge with a hyperthreaded Pentium IV. However, I am > not sure what other information might be relevant to narrow this > problem. There was a thread on FedoraForum.org > <http://www.fedoraforum.org/forum/archive/index.php/t-20064.html> > about a similar problem but I did not see any resolution there. How about trying linuxant kernel - and see the differences? http://www.linuxant.com/driverloader/wlan/full/downloads-fc2-kernel-i686.php Satish