Stepanov results with development gcc
Mike Stump
mrs@windriver.com
Fri Dec 8 14:54:00 GMT 2000
> Date: Fri, 08 Dec 2000 14:42:00 -0500
> From: David Edelsohn <dje@watson.ibm.com>
> Something seems strange with these results. 2.95.1 was perfect?
> 2.95.2 was perfect?
> My results for abstraction penalty using gcc -O2 on AIX are:
> gcc-2.95.2 = 1.23-1.24
> gcc-2.95.3 = 1.22-1.29
> I do not have a current development gcc to test.
I tried the compile from last night on a PIII, and got:
.[mrs@helium mrs]$ stepanov_v1p2 200000
test absolute additions ratio with
number time per second test0
0 2.02sec 198.02M 1.00
1 2.25sec 177.78M 1.11
2 2.09sec 191.39M 1.03
3 2.66sec 150.38M 1.32
4 2.42sec 165.29M 1.20
5 2.65sec 150.94M 1.31
6 2.42sec 165.29M 1.20
7 2.66sec 150.38M 1.32
8 2.35sec 170.21M 1.16
9 2.67sec 149.81M 1.32
10 2.36sec 169.49M 1.17
11 2.69sec 148.70M 1.33
12 2.70sec 148.15M 1.34
mean: 2.45sec 163.53M 1.21
Total absolute time: 31.94 sec
Abstraction Penalty: 1.21
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