Re: 2.4.1pre8 slowdown on dbench tests

[Marcelo Tosatti]

On Thu, 18 Jan 2001, Steven Cole wrote:

> On Thu, 18 Jan 2001, Marcelo Tosatti wrote:
> > On my dbench runs I've noted a slowdown between pre4 and pre8 with 48
> > threads. (128MB, 2 CPU's machine)
> 
> I ran dbench 48 four times in succession for 2.4.0 and 2.4.1-pre8.
> The change in performance appears to be not significant.
> 
> This was performed with a Dell 420 dual P-III (733 MHz), with a ST317221A, 
> ATA DISK drive and ReiserFS 3.6.25. 
> 
> Each test was done under the same conditions, running KDE 2.0, one xterm, 
> right after booting.  
> 
> 2.4.0:
> Average    9.07868 MB/sec
> 
> Throughput 9.03546 MB/sec (NB=11.2943 MB/sec  90.3546 MBit/sec)
> Throughput 8.99614 MB/sec (NB=11.2452 MB/sec  89.9614 MBit/sec)
> Throughput 8.87756 MB/sec (NB=11.097 MB/sec  88.7756 MBit/sec)
> Throughput 9.40556 MB/sec (NB=11.7569 MB/sec  94.0556 MBit/sec)
> 
> 2.4.1-pre8:
> Average    9.25707 MB/sec
> 
> Throughput 8.93444 MB/sec (NB=11.1681 MB/sec  89.3444 MBit/sec)
> Throughput 9.43609 MB/sec (NB=11.7951 MB/sec  94.3609 MBit/sec)
> Throughput 9.5075 MB/sec (NB=11.8844 MB/sec  95.075 MBit/sec)
> Throughput 9.15026 MB/sec (NB=11.4378 MB/sec  91.5026 MBit/sec)

Steven,

The issue is the difference between pre4 and pre8.

Could you please try pre4 and report results ? 

Thanks