[Gems-users] Instruction executed anomalies!

[Hemayet Hossain <hossain@xxxxxxxxxxxxxxxx>]

Hi Everybody,
I am confused with some results that I found.
I am simulating MSI_MOSI_CMP_directory protocol with 16 processors 
having 64 KB/L1 I/D and 4 MB L2/bank. The same ruby configuration was 
used with two check-pointed disk images. 1) Solaris 9 booted with 
serengeti 2) Solaris 9 booted with abisko. I am simulating one SPLASH2 
benchmark (BARNES) for same data set and same number of threads.
Some sample stats are as below..

(Serengeti)
Elapsed_time_in_hours: 14.2794
total_misses: 478338 [ 148191 19366 11931 14135 25876 10441 12589 99315 
13993 10861 15304 24142 33165 17167 10696 11166 ]
user_misses: 305420 [ 93052 9151 9383 8162 9967 7720 7625 86552 9128 
8039 9205 9744 11024 10441 8353 7874 ]
supervisor_misses: 172918 [ 55139 10215 2548 5973 15909 2721 4964 12763 
4865 2822 6099 14398 22141 6726 2343 3292 ]
instruction_executed: 2654863970 [ 155466103 165751667 161537918 
170557490 169002724 169788038 168664816 158467644 162339005 169407191 
166634634 164136267 166015835 168483818 170341048 168269772 ]

(Abisko)
Elapsed_time_in_hours: 1.782

Total_misses: 40033
total_misses: 40033 [ 10584 2087 2002 2219 3862 1811 1255 1511 2208 1848 
1418 1333 2354 1691 1446 2404 ]
user_misses: 1092 [ 285 104 71 62 38 49 37 34 48 83 48 33 52 24 56 68 ]
supervisor_misses: 38941 [ 10299 1983 1931 2157 3824 1762 1218 1477 2160 
1765 1370 1300 2302 1667 1390 2336 ]
instruction_executed: 1823083659 [ 110887718 113812095 111976861 
115258396 115990243 115003144 116059956 110835491 115053176 115111167 
115244570 113622236 115631698 111487049 114719720 112390139 ]
My questions are..
1)     Why are the number of misses so huge different?
2)   Why is the supervisor mode misses so high for Abisko?
3)    Why the instruction executed are so huge different?
      I checked the initial values for instruction executed...
                Abisko     12680973000 (all supervisor)
               Serengeti     3137025000 (all supervisor)


Thanks,
Hemayet