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2025-11-19 - 11:44
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot3.osadl.org (updated Wed Nov 19, 2025 00:46:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122501130irq/42-ahci0-21swapper/119:08:281
16710210593sleep20-21swapper/219:06:584
30663501020irq/52-eth0-rx-0-21swapper/719:05:189
12250980irq/42-ahci0-21swapper/319:09:025
3066350970irq/52-eth0-rx-0-21swapper/419:05:256
12250940irq/42-ahci0-21swapper/919:09:2811
3066350890irq/52-eth0-rx-0-21swapper/519:07:457
12250840irq/42-ahci0-21swapper/819:05:2310
1695227270sleep100-21swapper/1019:09:302
1667626553sleep00-21swapper/019:06:320
1357126353sleep60-21swapper/619:05:028
1665925955sleep110-21swapper/1119:06:193
1709199330cyclictest0-21swapper/020:29:380
1709199330cyclictest0-21swapper/020:29:370
1709199300cyclictest0-21swapper/021:16:330
1714799192cyclictest3066350irq/52-eth0-rx-21:30:212
1714799192cyclictest177742sleep1000:18:412
17147991911cyclictest7879-21python21:05:312
1714399192cyclictest761ksoftirqd/923:25:5111
1714399192cyclictest761ksoftirqd/923:17:4011
1714399192cyclictest761ksoftirqd/922:50:0011
1714399192cyclictest761ksoftirqd/922:13:5811
1714399192cyclictest761ksoftirqd/922:00:1711
1714399192cyclictest761ksoftirqd/921:19:0311
1714399192cyclictest761ksoftirqd/920:50:2711
1714399192cyclictest761ksoftirqd/919:52:3811
1714399192cyclictest761ksoftirqd/919:35:3611
1714399192cyclictest761ksoftirqd/919:24:1111
1714399192cyclictest761ksoftirqd/919:10:2511
1714399192cyclictest761ksoftirqd/900:10:2511
1714399192cyclictest0-21swapper/922:50:3711
1714399192cyclictest0-21swapper/921:42:1511
1714399192cyclictest0-21swapper/921:31:0511
1714399192cyclictest0-21swapper/920:30:2011
1714399192cyclictest0-21swapper/920:30:2011
1714399192cyclictest0-21swapper/920:20:0911
1711999192cyclictest0-21swapper/420:20:206
1709199190cyclictest0-21swapper/019:30:390
1714799183cyclictest0-21swapper/1022:12:102
1714799183cyclictest0-21swapper/1020:16:362
17147991817cyclictest15389-21timerandwakeup21:15:322
17147991817cyclictest0-21swapper/1021:55:232
17147991811cyclictest6938-21python19:35:302
17147991811cyclictest0-21swapper/1019:45:002
1714799181cyclictest811rcuc/1020:28:142
1714799181cyclictest811rcuc/1020:28:142
1714799181cyclictest12250irq/42-ahci23:12:172
1714799181cyclictest12250irq/42-ahci22:47:312
1714399181cyclictest761ksoftirqd/923:55:3211
1714399181cyclictest761ksoftirqd/923:10:2311
1714399181cyclictest761ksoftirqd/921:45:2211
1714399181cyclictest761ksoftirqd/920:25:3311
1714399181cyclictest761ksoftirqd/920:25:3311
1714399181cyclictest761ksoftirqd/920:05:1411
1714399181cyclictest761ksoftirqd/920:00:1911
1714399181cyclictest761ksoftirqd/919:55:2311
1714399181cyclictest761ksoftirqd/919:15:1911
1714399181cyclictest761ksoftirqd/900:25:2411
1714399181cyclictest0-21swapper/923:50:0811
1714399181cyclictest0-21swapper/923:45:0611
1714399181cyclictest0-21swapper/923:40:1711
1714399181cyclictest0-21swapper/923:35:1611
1714399181cyclictest0-21swapper/923:30:2211
1714399181cyclictest0-21swapper/923:20:0411
1714399181cyclictest0-21swapper/923:20:0411
1714399181cyclictest0-21swapper/923:05:1311
1714399181cyclictest0-21swapper/923:00:1011
1714399181cyclictest0-21swapper/922:55:3211
1714399181cyclictest0-21swapper/922:55:3211
1714399181cyclictest0-21swapper/922:40:2511
1714399181cyclictest0-21swapper/922:35:2811
1714399181cyclictest0-21swapper/922:30:1511
1714399181cyclictest0-21swapper/922:25:1011
1714399181cyclictest0-21swapper/922:20:1511
1714399181cyclictest0-21swapper/922:15:1811
1714399181cyclictest0-21swapper/922:05:1311
1714399181cyclictest0-21swapper/921:55:2811
1714399181cyclictest0-21swapper/921:50:0311
1714399181cyclictest0-21swapper/921:35:2711
1714399181cyclictest0-21swapper/921:25:2211
1714399181cyclictest0-21swapper/921:20:2111
1714399181cyclictest0-21swapper/921:10:1011
1714399181cyclictest0-21swapper/921:05:0211
1714399181cyclictest0-21swapper/921:00:1311
1714399181cyclictest0-21swapper/920:56:0411
1714399181cyclictest0-21swapper/920:45:1911
1714399181cyclictest0-21swapper/920:40:3111
1714399181cyclictest0-21swapper/920:35:1411
1714399181cyclictest0-21swapper/920:15:1211
1714399181cyclictest0-21swapper/920:10:0211
1714399181cyclictest0-21swapper/919:45:0911
1714399181cyclictest0-21swapper/919:40:0311
1714399181cyclictest0-21swapper/919:30:0411
1714399181cyclictest0-21swapper/919:25:0111
1714399181cyclictest0-21swapper/900:35:0711
1714399181cyclictest0-21swapper/900:30:4011
1714399181cyclictest0-21swapper/900:20:3311
1714399181cyclictest0-21swapper/900:15:2611
1714399181cyclictest0-21swapper/900:05:3811
1714399181cyclictest0-21swapper/900:00:2111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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