RTLinux内核测试

# 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

# 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