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2024-04-25 - 07:15
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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
Characteristics of the 50 highest latencies:
System rackdslot2.osadl.org (updated Thu Apr 25, 2024 00:57:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9516994001229191,10819cyclictest0-21swapper/322:25:473
951599399494440,24697cyclictest35392irq/88-enp1s0-T22:25:482
951399398894373,35514cyclictest9511-21cyclictest22:25:471
9516993857134468,1262cyclictest0-21swapper/300:35:593
9515993850634405,1255cyclictest0-21swapper/200:35:592
9512993763334489,11cyclictest31955-21kworker/0:100:36:000
9513993748434338,1261cyclictest0-21swapper/100:36:001
9512993633636324,10cyclictest20700-21kworker/0:000:07:560
951299355140,24702cyclictest14565-21kworker/0:122:25:470
9513993384014195,19641cyclictest0-21swapper/100:04:551
9512993379114147,9cyclictest20700-21kworker/0:000:04:550
9516993377814126,19650cyclictest0-21swapper/300:04:553
9515993371214062,19647cyclictest11690-21systemd-udevd00:04:552
9516993291632890,23cyclictest24651-21systemd-udevd00:07:563
951599320871863,21440cyclictest33-21ksoftirqd/200:11:332
9512993093330918,12cyclictest121rcu_preempt23:08:490
9515993084230832,7cyclictest321ktimersoftd/223:08:492
9513993069330680,11cyclictest0-21swapper/100:25:481
9512993064430632,9cyclictest5627-21kworker/0:300:25:480
9516993061830610,5cyclictest243-21systemd-udevd00:25:483
9515993055830547,8cyclictest2740-21systemd-udevd00:25:472
951299301717684,13709cyclictest111rcuc/000:11:330
951699293641201,28158cyclictest0-21swapper/300:42:373
951599292981137,6102cyclictest27801-21systemd-udevd00:42:372
951399280721,28068cyclictest0-21swapper/122:17:451
9515992794410596,17345cyclictest2160-21upowerd22:17:462
951599269617176,19782cyclictest33-21ksoftirqd/223:26:422
951299267014587,22111cyclictest23497-21kworker/0:222:50:060
951599266144502,14813cyclictest71152sleep222:50:062
9515992562514568,11054cyclictest29153-21systemd-udevd00:33:342
951399255703170,22014cyclictest0-21swapper/100:41:181
9513992555614505,9177cyclictest1126-21runrttasks00:33:331
951699253217665,8876cyclictest391rcuc/300:11:333
951299251463121,22013cyclictest31955-21kworker/0:100:41:180
9513992482424812,10cyclictest0-21swapper/123:02:161
9512992477624764,10cyclictest1807-21kworker/0:023:02:160
9516992475924743,13cyclictest0-21swapper/323:02:173
9513992475018698,6049cyclictest0-21swapper/100:10:551
951299247141222,5772cyclictest23497-21kworker/0:222:46:550
9515992469824680,16cyclictest0-21swapper/223:02:172
951699246941201,23489cyclictest0-21swapper/322:46:543
951599246271137,12995cyclictest0-21swapper/222:46:542
951599245634053,20507cyclictest0-21swapper/200:07:222
951399245591070,5771cyclictest0-21swapper/122:46:551
951399244973987,20507cyclictest243-21systemd-udevd00:07:221
9512992402410088,13933cyclictest5627-21kworker/0:300:20:340
9512992387512928,10944cyclictest2701-21kworker/0:200:31:180
9516992385612906,10947cyclictest0-21swapper/300:31:183
9515992351711381,12127cyclictest21503-21systemd-udevd00:22:472
9516992338011244,16cyclictest26664-21apache200:22:473
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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