>>> On Wed, Nov 7, 2007 at 10:41 AM, in message <Pine.LNX.4.58.0711071040210.8572@xxxxxxxxxxxxxxxxxxx>, Steven Rostedt <rostedt@xxxxxxxxxxx> wrote: > > So please compare -rt7, -rt8 and -rt10. Here are my results from running: sudo chrt -f 80 ./cyclictest -n -p 90 -t 8 -d 100 -i 100 with while true; do make mrproper; make allmodconfig; make -j 128 > /dev/null; done on a plain kernel.org kernel running in the background on an 8-way (4core x2) C2D Xeon 5335 system 23.1-rt7 --------------------------- 144.60 135.30 116.38 30/814 8184 T: 0 ( 5990) P:90 I:100 C:11560415 Min:2 Act: 5 Avg: 4 Max: 83 T: 1 ( 5991) P:89 I:200 C:5780208 Min: 2 Act: 5 Avg: 4 Max: 66 T: 2 ( 5992) P:88 I:300 C:3853472 Min: 2 Act: 5 Avg: 5 Max: 89 T: 3 ( 5993) P:87 I:400 C:2890104 Min: 2 Act: 6 Avg: 5 Max: 70 T: 4 ( 5994) P:86 I:500 C:2312083 Min: 2 Act: 4 Avg: 5 Max: 91 T: 5 ( 5995) P:85 I:600 C:1926736 Min: 2 Act: 5 Avg: 5 Max: 94 T: 6 ( 5996) P:84 I:700 C:1651488 Min: 2 Act: 12 Avg: 5 Max: 115 T: 7 ( 5997) P:83 I:800 C:1445052 Min: 2 Act: 6 Avg: 5 Max: 79 23.1-rt8 --------------------------- 119.95 106.56 107.98 37/811 18445 T: 0 ( 5052) P:90 I:100 C:29592746 Min: 2 Act: 21 Avg: 4 Max: 78 T: 1 ( 5053) P:89 I:200 C:14796374 Min: 2 Act: 6 Avg: 4 Max: 81 T: 2 ( 5054) P:88 I:300 C:9864249 Min: 2 Act: 10 Avg: 4 Max: 88 T: 3 ( 5055) P:87 I:400 C:7398187 Min: 2 Act: 6 Avg: 4 Max: 86 T: 4 ( 5056) P:86 I:500 C:5918550 Min: 2 Act: 13 Avg: 9 Max: 69 T: 5 ( 5057) P:85 I:600 C:4932125 Min: 2 Act: 11 Avg: 4 Max: 71 T: 6 ( 5058) P:84 I:700 C:4227536 Min: 2 Act: 8 Avg: 5 Max: 65 T: 7 ( 5059) P:83 I:800 C:3699094 Min: 2 Act: 4 Avg: 4 Max: 114 23.1-rt10 --------------------------- 143.39 123.49 117.92 22/791 5802 T: 0 ( 5305) P:90 I:100 C:45332860 Min: 2 Act: 4 Avg: 4 Max: 89 T: 1 ( 5306) P:89 I:200 C:22666431 Min: 2 Act: 3 Avg: 5 Max: 49 T: 2 ( 5307) P:88 I:300 C:15110954 Min: 2 Act: 6 Avg: 5 Max: 76 T: 3 ( 5308) P:87 I:400 C:11333216 Min: 2 Act: 7 Avg: 5 Max: 81 T: 4 ( 5309) P:86 I:500 C:9066572 Min: 2 Act: 8 Avg: 5 Max: 57 T: 5 ( 5310) P:85 I:600 C:7555477 Min: 2 Act: 8 Avg: 5 Max: 55 T: 6 ( 5311) P:84 I:700 C:6476123 Min: 2 Act: 14 Avg: 6 Max: 73 T: 7 ( 5312) P:83 I:800 C:5666608 Min: 2 Act: 5 Avg: 6 Max: 78 note that the rt10 image was running for a much longer duration than the other two...which generally will push the max higher. I know in general if I let -rt7 go that long it will hit 120-150+. This means these tests were biased towards -rt7 and -rt8 performing better, but they still came in with higher latencies. I will officially test -rt11 next, tho in my small runs so far it looks great. HTH Regards, -Greg - To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
