Re[6]: [Gc] Performance of bdwgc7.2 had degraded compared to 6.8

Ivan Maidanski ivmai at mail.ru
Mon Nov 29 22:37:22 PST 2010


Hi!

Since I don't know where is the problem, I've prepared a test patch against gc7.1.

So, please compare the speed (against v71/v72a2) of the following: g71+my_patch, gc71+my_patch+(-DSTATIC=).

I assume that: you dont use GC_DEBUG (or any GC_debug_ funcs), GC_ASSERTION, GC_THREADS, "GC_PRINT_STATS" (or any other GC statistic printing routines). I also assume that your target host is Lunux/x86 (or x64). Is this correct?

PS. Due to the mailing list restrictions, I'll send the patch (directly to the recipients) in a separate letter.

Regards.

Wed, 24 Nov 2010 16:52:11 +0100 (CET) Sven Hartrumpf <hartrumpf at gmx.net>:

> I combined all measurements (in seconds) done by Manuel in one table -
> for easier comparison.
> 
> Stay away from 7.2 if you can, I would conclude from this table and
> my own benchmarks :-)
> 
> 
> 7.2a4 7.2a2 7.1   7.0   7.0a7 6.8
> bague     0.76  0.77  0.77  0.76  0.77  0.77
> beval     1.33  1.41  1.29  1.41  1.29  1.31
> boyer     2.23  2.23  2.13  2.14  2.13  2.15
> cgc       0.47  0.48  0.48  0.47  0.48  0.46
> conform   1.91  1.91  1.74  1.72  1.73  1.79
> earley    2.49  2.50  2.08  2.13  2.09  2.23
> fib       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
> leval     1.12  1.13  1.05  1.01  1.02  1.09
> maze      1.67  1.40  1.36  1.35  1.26  1.39
> mbrot     7.03  7.05  7.04  7.03  7.05  7.05
> nucleic   1.18  1.20  1.20  1.16  1.16  1.34
> peval     1.46  1.47  1.20  1.19  1.20  1.18
> puzzle    1.96  1.92  1.97  1.96  1.92  1.93
> queens    2.29  2.29  1.55  1.56  1.55  1.44
> qsort     1.65  1.64  1.63  1.62  1.63  1.63
> rgc       1.28  1.28  1.23  1.23  1.24  1.28
> sieve     1.58  1.60  1.44  1.42  1.41  1.51
> traverse  5.14  5.15  3.55  3.60  3.56  3.58
> almabench 1.45  1.45  1.45  1.45  1.45  1.46
> SUM      39.52 39.41 35.69 35.72 35.47 36.09
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