I ran quite a few file system benchmarks in RHAS x86-64 and FC2 x86-64 on a Sun V40z - I did see very consistent 50% improvements in bonnie++ moving from RHAS to FC2 with ext2/ext3 on SAN. On Sun, 2004-11-14 at 23:51 -0800, William Yu wrote: > Greg Stark wrote: > > William Yu <wyu@xxxxxxxxxxx> writes: > > > > > >>Biggest speedup I've found yet is the backup process (PG_DUMP --> GZIP). 100% > >>faster in 64-bit mode. This drastic speed might be more the result of 64-bit > >>GZIP though as I've seen benchmarks in the past showing encryption/compression > >>running 2 or 3 times faster in 64-bit mode versus 32-bit. > > > > > > Isn't this a major kernel bump too? So a different scheduler, different IO > > scheduler, etc? > > > > I'm sure there's some speedup due to the kernel bump. I really didn't > have the patience to even burn the FC2 32-bit CDs much less install both > 32-bit & 64-bit FC2 in order to have a more accurate baseline comparison. > > However, that being said -- when you see huge speed increases like 50% > 100% for dump+gzip, it's doubtful the kernel/process scheduler/IO > scheduler could have made that drastic of a difference. Maybe somebody > else who has done a 2.4 -> 2.6 upgrade can give us a baseline to > subtract from my numbers. > > ---------------------------(end of broadcast)--------------------------- > TIP 1: subscribe and unsubscribe commands go to majordomo@xxxxxxxxxxxxxx
