Re[13]: [Gc] Performance of bdwgc7.2 had degraded compared to 6.8 - the patch to test

Ivan Maidanski ivmai at mail.ru
Wed Dec 1 12:47:43 PST 2010


Hi all,

It seems the observed degradation can be discovered by 2 tests:
1) by benchmarking v71 vs v72a2+test2_patch;
2) by benchmarking v71 vs v72a2+test3_patch.

test2 patch reverts the relevant changes of:
2008-08-21  Hans Boehm <Hans.Boehm at hp.com>

test3 patch reverts the relevant changes of:
2009-05-22  Hans Boehm <Hans.Boehm at hp.com> (Largely from Ludovic Cortes)

Regards.

Wed, 01 Dec 2010 23:10:56 +0300  Ivan Maidanski <ivmai at mail.ru>:

> Hi,
> 
> So, there is no real difference in speed between 7.1 and 7.1+patch, right?
> 
> PS. I'm preparing some more test patches...
> 
> Wed, 1 Dec 2010 09:27:24 +0100 Manuel.Serrano at inria.fr:
> 
> > Here we are:
> > 
> > 7.2a4 7.2a2 7.1   7.0   7.0a7 6.8     7.1+ivan-30nov
> > bague     0.76  0.77  0.77  0.76  0.77  0.77    0.77
> > beval     1.33  1.41  1.29  1.41  1.29  1.31    1.44
> > boyer     2.23  2.23  2.13  2.14  2.13  2.15    2.13
> > cgc       0.47  0.48  0.48  0.47  0.48  0.46    0.47
> > conform   1.91  1.91  1.74  1.72  1.73  1.79    1.71
> > earley    2.49  2.50  2.08  2.13  2.09  2.23    2.09
> > fib       0.01  0.01  0.01  0.01  0.01  0.01    0.01
> > fft       2.51  2.52  2.52  2.50  2.52  2.49    2.5
> > leval     1.12  1.13  1.05  1.01  1.02  1.09    1.02
> > maze      1.67  1.40  1.36  1.35  1.26  1.39    1.35
> > mbrot     7.03  7.05  7.04  7.03  7.05  7.05    7.02
> > nucleic   1.18  1.20  1.20  1.16  1.16  1.34    1.17
> > peval     1.46  1.47  1.20  1.19  1.20  1.18    1.2
> > puzzle    1.96  1.92  1.97  1.96  1.92  1.93    1.92
> > queens    2.29  2.29  1.55  1.56  1.55  1.44    1.56
> > qsort     1.65  1.64  1.63  1.62  1.63  1.63    1.63
> > rgc       1.28  1.28  1.23  1.23  1.24  1.28    1.23
> > sieve     1.58  1.60  1.44  1.42  1.41  1.51    1.43
> > traverse  5.14  5.15  3.55  3.60  3.56  3.58    3.59
> > almabench 1.45  1.45  1.45  1.45  1.45  1.46    1.45
> > SUM      39.52 39.41 35.69 35.72 35.47 36.09    35.69
> > 
> > 
> > -- 
> > Manuel
> > 
> > 
> > ATTACHMENT: application/pgp-signature

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