Re: 2.5.38-mm2 dbench $N times

Dave Hansen
2002-09-25T01:04:13Z

On Tue, 24 Sep 2002, Andrew Morton wrote:

> William Lee Irwin III wrote:
> >
> > William Lee Irwin III wrote:
> > >> Taken on 32x/32G NUMA-Q:
> > >> Throughput 67.3949 MB/sec (NB=84.2436 MB/sec 673.949 MBit/sec) 16 procs
> > >> dbench 16 11.72s user 122.21s system 422% cpu 31.733 total
>
> dbench 16 on that sort of machine is a memory bandwidth test.
> And a dcache lock exerciser. It basically doesn't touch the
> disk. Something very bad is happening.
>
> Anton can get 3000 MByte/sec ;)

Bill's Machine cost around $50, plus the cost to repair the walls that I
crushed when hauling the pieces around. Anton's cost $2 million. Bill
wins :)

Are you trying to bind the processes anywhere? I wonder what would happen
if you make it always run quad 0...
--
Dave Hansen
haveblue@us.ibm.com