Greg, Here are the results I promised you. Sorry it took so long. I don't think they are particularly interesting, perhaps more iterations, say 1000000? If there are different options you would like to see let me know, I have all 5 kernels sitting on the machine and can keep it for a couple days. I attached a simple bar chart to quickly summarize the data. o testing 2.6.23.1-rt7 to 2.6.23.1-rt11 for ghaskins et all o load used was building 2.6.23.1 make -j 16 o system: - 8 Opterons @ 1.6 GHz - x86_64 - 2 GB RAM # uname -r 2.6.23.1-rt7 IDLE # ./cyclictest -n -i 10000 -l 10000 -p 95 3.04 8.17 4.65 1/231 8854 T: 0 ( 8852) P:95 I:10000 C: 10000 Min: 5 Act: 7 Avg: 6 Max: 18 LOADED # ./cyclictest -n -i 10000 -l 10000 -p 95 15.69 5.85 2.19 17/311 19488 T: 0 ( 5111) P:95 I:10000 C: 10000 Min: 7 Act: 16 Avg: 18 Max: 44 # uname -r 2.6.23.1-rt8 IDLE # ./cyclictest -n -i 10000 -l 10000 -p 95 0.90 5.76 4.89 1/231 27569 T: 0 (27566) P:95 I:10000 C: 10000 Min: 5 Act: 6 Avg: 6 Max: 14 LOADED # ./cyclictest -n -i 10000 -l 10000 -p 95 15.18 5.56 2.03 13/303 19336 T: 0 ( 4836) P:95 I:10000 C: 10000 Min: 7 Act: 19 Avg: 19 Max: 42 # uname -r 2.6.23.1-rt9 IDLE # ./cyclictest -n -i 10000 -l 10000 -p 95 2.52 4.05 1.95 1/231 19749 T: 0 (19746) P:95 I:10000 C: 10000 Min: 6 Act: 8 Avg: 6 Max: 14 LOADED # ./cyclictest -n -i 10000 -l 10000 -p 95 15.81 5.84 2.15 17/310 19573 T: 0 ( 4955) P:95 I:10000 C: 10000 Min: 8 Act: 21 Avg: 17 Max: 45 # uname -r 2.6.23.1-rt10 IDLE # ./cyclictest -n -i 10000 -l 10000 -p 95 1.26 3.51 1.95 4/231 21269 T: 0 (21267) P:95 I:10000 C: 10000 Min: 6 Act: 7 Avg: 7 Max: 16 LOADED # ./cyclictest -n -i 10000 -l 10000 -p 95 # 15.33 5.60 2.04 21/311 19269 T: 0 ( 4900) P:95 I:10000 C: 10000 Min: 7 Act: 20 Avg: 18 Max: 35 # uname -r 2.6.23.1-rt11 IDLE # ./cyclictest -n -i 10000 -l 10000 -p 95 3.40 8.32 4.66 1/231 10118 T: 0 (10116) P:95 I:10000 C: 10000 Min: 5 Act: 7 Avg: 6 Max: 12 LOADED # ./cyclictest -n -i 10000 -l 10000 -p 9515.68 5.74 2.10 18/313 19181 T: 0 ( 4963) P:95 I:10000 C: 10000 Min: 7 Act: 14 Avg: 18 Max: 40 -- Darren Hart IBM Linux Technology Center Realtime Linux Team
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