On Wed, 2013-05-22 at 17:25 +0800, Michael Wang wrote:

> I've not test the hackbench with wakeup-buddy before, will do it this
> time, I suppose the 15% illegal income will suffered, anyway, it's
> illegal :)

On a 4 socket 40 core (+SMT) box, hackbench wasn't too happy.

defaultx = wakeup buddy

tbench 30 localhost
                         1       5       10       20       40       80      160 
     320
3.10.0-default      188.13  953.03  1860.03  3180.93  5378.34 10826.06 11342.90 
11651.30
3.10.0-defaultx     187.26  934.55  1859.30  3160.29  5016.35 12477.15 12567.05 
12068.47

hackbench -l 400 -g 400
3.10.0-default     Time: 3.919    4.250     4.116
3.10.0-defaultx    Time: 9.074   10.985     9.849

aim7 compute
AIM Multiuser Benchmark - Suite VII     "1.1"   3.10.0-default     AIM 
Multiuser Benchmark - Suite VII     "1.1"   3.10.0-defaultx

Tasks   Jobs/Min        JTI     Real    CPU     Jobs/sec/task      Tasks   
Jobs/Min        JTI     Real    CPU     Jobs/sec/task
1       428.0           100     14.2    4.1     7.1328             1       
428.9           100     14.1    4.1     7.1479
1       417.9           100     14.5    4.1     6.9655             1       
430.4           100     14.1    4.0     7.1733
1       427.7           100     14.2    4.2     7.1277             1       
424.7           100     14.3    4.2     7.0778
5       2350.7          99      12.9    13.8    7.8355             5       
2156.6          99      14.1    19.8    7.1886
5       2422.1          99      12.5    12.1    8.0735             5       
2155.0          99      14.1    19.7    7.1835
5       2189.3          98      13.8    18.3    7.2977             5       
2108.6          99      14.4    21.4    7.0285
10      4515.6          93      13.4    27.6    7.5261             10      
4529.1          96      13.4    29.5    7.5486
10      4708.6          96      12.9    24.3    7.8477             10      
4597.9          96      13.2    26.9    7.6631
10      4636.6          96      13.1    25.7    7.7276             10      
5197.3          98      11.7    14.8    8.6621
20      8053.2          95      15.1    78.1    6.7110             20      
9431.9          98      12.8    49.1    7.8599
20      8250.5          92      14.7    67.5    6.8754             20      
7973.7          97      15.2    93.4    6.6447
20      8178.1          97      14.8    78.5    6.8151             20      
8145.2          95      14.9    78.4    6.7876
40      17413.8         94      13.9    88.6    7.2557             40      
16312.2         92      14.9    115.6   6.7968
40      16775.1         93      14.5    111.6   6.9896             40      
17070.4         94      14.2    110.6   7.1127
40      16031.7         93      15.1    147.1   6.6799             40      
17578.0         94      13.8    96.9    7.3241
80      33666.7         95      14.4    138.4   7.0139             80      
33854.7         96      14.3    177.9   7.0531
80      33949.6         97      14.3    128.0   7.0728             80      
34164.9         96      14.2    146.4   7.1177
80      35752.2         96      13.6    159.1   7.4484             80      
33807.5         96      14.3    127.6   7.0432
160     74814.8         98      13.0    149.8   7.7932             160     
75162.8         98      12.9    148.6   7.8295
160     74015.3         97      13.1    149.5   7.7099             160     
74642.0         98      13.0    168.2   7.7752
160     73621.9         98      13.2    146.3   7.6689             160     
75572.9         98      12.8    163.6   7.8722
320     139210.3        96      13.9    280.1   7.2505             320     
139010.8        97      14.0    282.4   7.2401
320     135135.9        96      14.3    277.8   7.0383             320     
139611.2        96      13.9    282.2   7.2714
320     139110.5        96      13.9    280.4   7.2453             320     
138514.3        97      14.0    281.0   7.2143
640     223538.9        98      17.4    577.2   5.8213             640     
224704.5        95      17.3    567.3   5.8517
640     224055.5        97      17.3    575.7   5.8348             640     
222385.3        95      17.4    580.1   5.7913
640     225488.4        96      17.2    566.3   5.8721             640     
225882.4        93      17.2    563.0   5.8824


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