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2024-05-22 - 02:00
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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 50 highest latencies:
System rack0slot3.osadl.org (updated Wed May 22, 2024 00:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18548342374368,4sleep40-21swapper/419:09:0910
18546902374368,4sleep110-21swapper/1119:07:233
18538702362356,4sleep80-21swapper/819:05:2814
18547232361319,14sleep150-21swapper/1519:07:437
18548662355320,28sleep120-21swapper/1219:09:324
18548642349341,5sleep100-21swapper/1019:09:312
18547972347326,14sleep50-21swapper/519:08:3811
18547402347326,14sleep70-21swapper/719:07:5113
18545572347307,13sleep90-21swapper/919:05:4415
18547802345325,13sleep60-21swapper/619:08:2312
18547702345328,11sleep130-21swapper/1319:08:135
18547222337316,14sleep140-21swapper/1419:07:426
18548332332310,14sleep30-21swapper/319:09:089
18548932330310,14sleep10-21swapper/119:09:541
18546332329312,11sleep20-21swapper/219:06:428
18530332329320,6sleep00-21swapper/019:05:200
23108192580,0sleep100-21swapper/1000:23:112
21980602500,0sleep130-21swapper/1323:13:175
21745702410,1sleep4441rcuc/422:59:4710
19329782390,1sleep31929694-21grub-mount20:05:269
1855099993616,0cyclictest0-21swapper/020:21:150
20001742340,0sleep60-21swapper/621:10:2112
19884572320,0sleep120-21swapper/1220:55:314
23146382310,0sleep60-21swapper/600:25:1512
185511599317,24cyclictest0-21swapper/1423:38:426
185511599317,0cyclictest0-21swapper/1420:42:576
185511599300,10cyclictest141rcu_preempt00:27:436
185511299309,21cyclictest0-21swapper/1120:21:153
185511599297,0cyclictest0-21swapper/1421:04:566
185511599284,11cyclictest0-21swapper/1421:15:556
1855115992811,3cyclictest1141rcuc/1421:33:326
22479812270,0sleep150-21swapper/1523:44:337
19334692270,0sleep41929694-21grub-mount20:05:4410
185511599273,11cyclictest0-21swapper/1423:16:446
185511599273,11cyclictest0-21swapper/1422:10:506
185511599273,11cyclictest0-21swapper/1420:53:576
21822072260,0sleep50-21swapper/523:04:2011
185511599262,24cyclictest0-21swapper/1423:27:436
185511599262,11cyclictest0-21swapper/1421:37:536
18991252250,0sleep50-21swapper/519:55:0411
185511599252,11cyclictest0-21swapper/1422:32:486
185511599251,11cyclictest0-21swapper/1423:05:456
185511599251,11cyclictest0-21swapper/1422:54:466
185511599251,11cyclictest0-21swapper/1419:59:026
185511599250,0cyclictest0-21swapper/1422:21:496
185511499259,3cyclictest0-21swapper/1322:15:035
185510699220,22cyclictest0-21swapper/521:04:5611
185509999229,3cyclictest0-21swapper/020:50:100
185509999229,13cyclictest0-21swapper/020:46:310
185511299211,0cyclictest0-21swapper/1100:02:573
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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