Excerpts from Dave Chinner's message of 2011-06-01 21:11:39 -0400:
> Hi Folks,
>
> Running on 3.0-rc1 on an 8p/4G RAM VM with a 16TB filesystem (12
> disk DM stripe) a 50 million inode 8-way fsmark creation workload
> via:
>
> $ /usr/bin/time ./fs_mark -D 1 -S0 -n 10 -s 0 -L 63 \
> > -d /
Dave Chinner writes:
>
> Also, there is massive lock contention while running these workloads.
> perf top shows this for the create after about 5m inodes have been
> created:
We saw pretty much the same thing in some simple tests on large systems
(extent io tree locking and higher level b*tree lo
Hi Folks,
Running on 3.0-rc1 on an 8p/4G RAM VM with a 16TB filesystem (12
disk DM stripe) a 50 million inode 8-way fsmark creation workload
via:
$ /usr/bin/time ./fs_mark -D 1 -S0 -n 10 -s 0 -L 63 \
> -d /mnt/scratch/0 -d /mnt/scratch/1 \
> -d /mnt/scratch/2 -d /mnt/scratch/3 \
> -d /mnt
