Re: 'stress' test results of 2.23/06 and 2.23/08

From: Rene Brun (Rene.Brun@cern.ch)
Date: Fri Nov 12 1999 - 19:01:59 MET


Hi Sergei,
This is under investigation.

Rene Brun

Sergei Avvakumov wrote:
> 
> Hi,
> 
> Execution times of the 'stress' test for the two versions of ROOT
> (from root_v2.23.Linux.2.2.3.egcs111.tar.gz) differ by a lot on my PC :
> 
> 2.23/06:
> ******************************************************************
> *  Linux viola 2.2.13 #6 Mon Nov 8 14:53:28 EST 1999 i686 unkn
> ******************************************************************
> stress    : Total I/O =  425.9 Mbytes, I =  296.6, O = 129.3
> stress    : Compr I/O =  407.7 Mbytes, I =  286.6, O = 121.1
> stress    : Real Time = 112.40 seconds Cpu Time =  98.92 seconds
> ******************************************************************
> *  ROOTMARKS = 138.6   *  Root 2.23/06  991021/850
> ******************************************************************
> 
> 2.23/08:
> ******************************************************************
> *  Linux viola 2.2.13 #6 Mon Nov 8 14:53:28 EST 1999 i686 unkn
> ******************************************************************
> stress    : Total I/O =  397.5 Mbytes, I =  277.8, O = 119.7
> stress    : Compr I/O =  350.5 Mbytes, I =  248.2, O = 102.3
> stress    : Real Time = 151.18 seconds Cpu Time = 144.61 seconds
> ******************************************************************
> *  ROOTMARKS =  99.0   *  Root 2.23/08  991102/1137
> ******************************************************************
> 
> Is there any explanation for this? According to release notes, some
> performance enhancing changes were introduced in version 2.23/07,
> so the effect should have been opposite.
> 
> Thanks,
> 
> Sergei Avvakumov



This archive was generated by hypermail 2b29 : Tue Jan 04 2000 - 00:43:42 MET