Messages in this thread |  | | Date | Sun, 16 Feb 2003 17:18:41 -0800 | From | Dave Hansen <> | Subject | Re: Performance of ext3 on large systems |
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Martin J. Bligh wrote: > OK, so I guess we all know that ext3 doesn't scale well. But by > accident, I have some numbers on exactly how bad it really is: > > Kernbench-2: (make -j N vmlinux, where N = 2 x num_cpus) > Elapsed User System CPU > 2.5.61-mjb0.1-ext3 48.47 564.13 143.16 1458.67 > 2.5.61-mjb0.1-ext2 46.06 563.04 115.36 1472.33 > > (look at system time ... eeek!) > > diffprofile (+ is worse with ext3, - better) > > 12702 .text.lock.inode
# grep -c lock_kernel fs/ext3/inode.c 35
-- Dave Hansen haveblue@us.ibm.com
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