RTLinux内核测试
标准Linux测试
默认的Linux配置在开发板上测试
# cyclictest -t5 -p 80 -n -i 10000 -l 10000
# /dev/cpu_dma_latency set to 0us
policy: fifo: loadavg: 0.16 0.20 0.16 1/129 1692
T: 0 ( 1568) P:80 I:10000 C: 10000 Min: 18 Act: 25 Avg: 34 Max: 1048
T: 1 ( 1569) P:80 I:10500 C: 9537 Min: 17 Act: 25 Avg: 25 Max: 1039
T: 2 ( 1570) P:80 I:11000 C: 9103 Min: 18 Act: 31 Avg: 28 Max: 1052
T: 3 ( 1571) P:80 I:11500 C: 8707 Min: 18 Act: 31 Avg: 25 Max: 558
T: 4 ( 1572) P:80 I:12000 C: 8344 Min: 17 Act: 22 Avg: 25 Max: 534
RTLinux测试
使用PREEMPT补丁后,在开发板上测试
# cyclictest -t5 -p 80 -n -i 10000 -l 10000
# /dev/cpu_dma_latency set to 0us
policy: fifo: loadavg: 0.66 0.73 0.50 1/157 1503
T: 0 ( 1399) P:80 I:10000 C: 10000 Min: 17 Act: 23 Avg: 25 Max: 73
T: 1 ( 1400) P:80 I:10500 C: 9543 Min: 15 Act: 22 Avg: 24 Max: 99
T: 2 ( 1401) P:80 I:11000 C: 9109 Min: 17 Act: 33 Avg: 24 Max: 98
T: 3 ( 1402) P:80 I:11500 C: 8713 Min: 16 Act: 23 Avg: 24 Max: 106
T: 4 ( 1403) P:80 I:12000 C: 8350 Min: 17 Act: 22 Avg: 23 Max: 108
作者:SteveChen 创建时间:2024-09-18 16:41
最后编辑:SteveChen 更新时间:2024-09-18 16:42
最后编辑:SteveChen 更新时间:2024-09-18 16:42