Messages in this thread |  | | | Subject | Re: x86, ARM, PARISC, PPC, MIPS and Sparc folks please run this | | From | Kars de Jong <> | | Date | 02 Sep 2003 22:42:55 +0200 |
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On Mon, 2003-09-01 at 12:08, Jamie Lokier wrote: > Kars de Jong wrote: > > On Mon, 2003-09-01 at 10:34, Geert Uytterhoeven wrote: > > > BTW, probably you want us to run your test program on other m68k boxes? Mine > > > got a 68040, that leaves us with: > > > - 68020+68551 > > > - 68060 > > > > I can run it on these boxes if no-one else has done it yet before I come > > home tonight. I'm sure there are more people with a 68060 out there, not > > too sure about the 68020+68851. > > I would prefer that you run the attached program. It fixes a bug in > the function which tests whether the problem is in the L1 cache or > store buffer. The bug probably didn't affect the test, but it might > have. > > Ideally you could run the program Geert linked to as well? > Please remember to compile both with optimisation.
OK, here are my results (I'll skip the 68060 because Roman has already run the program on that one):
This is on a Plessey PME 68-22. It's sooooo fast... Sam, is there a Sun slower than this? Original program:
fikkie:/tmp# ./jamie_test Test separation: 4096 bytes: pass Test separation: 8192 bytes: pass Test separation: 16384 bytes: pass Test separation: 32768 bytes: pass Test separation: 65536 bytes: pass Test separation: 131072 bytes: pass Test separation: 262144 bytes: pass Test separation: 524288 bytes: pass Test separation: 1048576 bytes: pass Test separation: 2097152 bytes: pass Test separation: 4194304 bytes: pass Test separation: 8388608 bytes: pass Test separation: 16777216 bytes: pass VM page alias coherency test: all sizes passed
New program:
fikkie:/tmp# time ./jamie_test2 (2048) [10000,10000,0] Test separation: 4096 bytes: pass (2048) [10000,10000,0] Test separation: 8192 bytes: pass (2048) [10000,10000,0] Test separation: 16384 bytes: pass (2048) [10000,10000,0] Test separation: 32768 bytes: pass (2048) [10000,10000,0] Test separation: 65536 bytes: pass (2048) [10000,10000,0] Test separation: 131072 bytes: pass (2048) [10000,10000,0] Test separation: 262144 bytes: pass (2048) [10000,10000,0] Test separation: 524288 bytes: pass (2048) [10000,10000,0] Test separation: 1048576 bytes: pass (2048) [10000,10000,0] Test separation: 2097152 bytes: pass (2048) [10000,10000,0] Test separation: 4194304 bytes: pass (2048) [10000,10000,0] Test separation: 8388608 bytes: pass (2048) [10000,10000,0] Test separation: 16777216 bytes: pass VM page alias coherency test: all sizes passed real 1m51.210s user 1m44.950s sys 0m4.930s fikkie:/tmp# cat /proc/cpuinfo CPU: 68020 MMU: 68851 FPU: 68881 Clocking: 15.6MHz BogoMips: 3.90 Calibration: 19520 loops fikkie:/tmp#
And no, this board has no way of getting a better time resolution than the 100 Hz tick timer either ;-)
Regards,
Kars.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ On Mon, 2003-09-01 at 12:08, Jamie Lokier wrote: > Kars de Jong wrote: > > On Mon, 2003-09-01 at 10:34, Geert Uytterhoeven wrote: > > > BTW, probably you want us to run your test program on other m68k boxes? Mine > > > got a 68040, that leaves us with: > > > - 68020+68551 > > > - 68060 > > > > I can run it on these boxes if no-one else has done it yet before I come > > home tonight. I'm sure there are more people with a 68060 out there, not > > too sure about the 68020+68851. > > I would prefer that you run the attached program. It fixes a bug in > the function which tests whether the problem is in the L1 cache or > store buffer. The bug probably didn't affect the test, but it might > have. > > Ideally you could run the program Geert linked to as well? > Please remember to compile both with optimisation.
OK, here are my results (I'll skip the 68060 because Roman has already run the program on that one):
This is on a Plessey PME 68-22. It's sooooo fast... Sam, is there a Sun slower than this? Original program:
fikkie:/tmp# ./jamie_test Test separation: 4096 bytes: pass Test separation: 8192 bytes: pass Test separation: 16384 bytes: pass Test separation: 32768 bytes: pass Test separation: 65536 bytes: pass Test separation: 131072 bytes: pass Test separation: 262144 bytes: pass Test separation: 524288 bytes: pass Test separation: 1048576 bytes: pass Test separation: 2097152 bytes: pass Test separation: 4194304 bytes: pass Test separation: 8388608 bytes: pass Test separation: 16777216 bytes: pass VM page alias coherency test: all sizes passed
New program:
fikkie:/tmp# time ./jamie_test2 (2048) [10000,10000,0] Test separation: 4096 bytes: pass (2048) [10000,10000,0] Test separation: 8192 bytes: pass (2048) [10000,10000,0] Test separation: 16384 bytes: pass (2048) [10000,10000,0] Test separation: 32768 bytes: pass (2048) [10000,10000,0] Test separation: 65536 bytes: pass (2048) [10000,10000,0] Test separation: 131072 bytes: pass (2048) [10000,10000,0] Test separation: 262144 bytes: pass (2048) [10000,10000,0] Test separation: 524288 bytes: pass (2048) [10000,10000,0] Test separation: 1048576 bytes: pass (2048) [10000,10000,0] Test separation: 2097152 bytes: pass (2048) [10000,10000,0] Test separation: 4194304 bytes: pass (2048) [10000,10000,0] Test separation: 8388608 bytes: pass (2048) [10000,10000,0] Test separation: 16777216 bytes: pass VM page alias coherency test: all sizes passed real 1m51.210s user 1m44.950s sys 0m4.930s fikkie:/tmp# cat /proc/cpuinfo CPU: 68020 MMU: 68851 FPU: 68881 Clocking: 15.6MHz BogoMips: 3.90 Calibration: 19520 loops fikkie:/tmp#
And no, this board has no way of getting a better time resolution than the 100 Hz tick timer either ;-)
Regards,
Kars.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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