Re: [Bug #11308] tbench regression on each kernel release from 2.6.22 -> 2.6.28

Mike Galbraith
2008-09-13T11:57:41Z

On Sat, 2008-09-13 at 13:44 +0200, Mike Galbraith wrote:

> 2.6.23.17-cfs-v24.1 (identical config)
> Throughput 1145.28 MB/sec 4 procs
>
> 16384 87380 1 1 60.00 90278.55
> 16384 87380 1 1 60.01 90579.31
> 16384 87380 1 1 60.01 89412.14
> 16384 87380 1 1 60.00 90270.97
>
> 2.6.24.7
> Throughput 1119.28 MB/sec 4 procs
>
> 16384 87380 1 1 60.00 84092.78
> 16384 87380 1 1 60.00 84120.68
> 16384 87380 1 1 60.00 84076.73
> 16384 87380 1 1 60.00 83995.07

P.S. fwiw, scheduler difference between these two kernels is practically
nill.