>Do you see a similar drop in performance when you run your test on >ext3 on the two kernels? Yes, I've formated my gfs to ext3fs, the result is the same. And I've formated one local raw disk to ext3fs, the 2.6.11-based ext3fs's performance declined too. So maybe it dues to my compilation of the 2.6.11.3 kernel? Which parameters will be so important that cause this problem? Thanks. Luckey.
