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SubjectRe: hackbench regression due to commit 9dfc6e68bfe6e
We cannot reproduce the issue here. Our tests here (dual quad dell) show a
performance increase in hackbench instead.

Linux 2.6.33.2 #2 SMP Mon Apr 5 11:30:56 CDT 2010 x86_64 GNU/Linux
./hackbench 100 process 200000
Running with 100*40 (== 4000) tasks.
Time: 3102.142
./hackbench 100 process 20000
Running with 100*40 (== 4000) tasks.
Time: 308.731
./hackbench 100 process 20000
Running with 100*40 (== 4000) tasks.
Time: 311.591
./hackbench 100 process 20000
Running with 100*40 (== 4000) tasks.
Time: 310.200
./hackbench 10 process 20000
Running with 10*40 (== 400) tasks.
Time: 38.048
./hackbench 10 process 20000
Running with 10*40 (== 400) tasks.
Time: 44.711
./hackbench 10 process 20000
Running with 10*40 (== 400) tasks.
Time: 39.407
./hackbench 1 process 20000
Running with 1*40 (== 40) tasks.
Time: 9.411
./hackbench 1 process 20000
Running with 1*40 (== 40) tasks.
Time: 8.765
./hackbench 1 process 20000
Running with 1*40 (== 40) tasks.
Time: 8.822

Linux 2.6.34-rc3 #1 SMP Tue Apr 6 13:30:34 CDT 2010 x86_64 GNU/Linux
./hackbench 100 process 200000
Running with 100*40 (== 4000) tasks.
Time: 3003.578
./hackbench 100 process 20000
Running with 100*40 (== 4000) tasks.
Time: 300.289
./hackbench 100 process 20000
Running with 100*40 (== 4000) tasks.
Time: 301.462
./hackbench 100 process 20000
Running with 100*40 (== 4000) tasks.
Time: 301.173
./hackbench 10 process 20000
Running with 10*40 (== 400) tasks.
Time: 41.191
./hackbench 10 process 20000
Running with 10*40 (== 400) tasks.
Time: 41.964
./hackbench 10 process 20000
Running with 10*40 (== 400) tasks.
Time: 41.470
./hackbench 1 process 20000
Running with 1*40 (== 40) tasks.
Time: 8.829
./hackbench 1 process 20000
Running with 1*40 (== 40) tasks.
Time: 9.166
./hackbench 1 process 20000
Running with 1*40 (== 40) tasks.
Time: 8.681




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