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2024-06-21 - 12:11
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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 rack1slot8.osadl.org (updated Fri Jun 21, 2024 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1554099916845,51cyclictest0-21swapper/019:28:260
1554099916845,51cyclictest0-21swapper/019:28:260
1554199884811,47cyclictest0-21swapper/119:28:261
1554199884811,47cyclictest0-21swapper/119:28:251
154762720700,13sleep10-21swapper/119:09:411
1554099538439,88cyclictest0-21swapper/019:10:030
1554199496406,48cyclictest0-21swapper/119:10:021
150822196174,16sleep00-21swapper/019:05:440
2277991050,5rtkit-daemon2276-21rtkit-daemon23:44:401
2277991050,5rtkit-daemon2276-21rtkit-daemon00:30:161
227799950,11rtkit-daemon0-21swapper/021:04:060
232502880,4sleep023252-21netstat23:50:230
1554099812,73cyclictest20428-21df_abs22:50:160
157582800,5sleep10-21swapper/123:37:371
1554099775,56cyclictest0-21swapper/022:20:020
15540997722,49cyclictest88450irq/46-eth0-tx-23:15:160
1554099745,63cyclictest0-21swapper/022:30:160
15540997329,39cyclictest88450irq/46-eth0-tx-21:15:220
15540997145,21cyclictest0-21swapper/023:40:080
1554099713,44cyclictest15451-21ssh00:32:470
1554199704,52cyclictest0-21swapper/119:43:581
1554099702,59cyclictest25955-21grep19:35:360
1554099702,42cyclictest19485-21latency_hist20:50:010
15540997016,48cyclictest0-21swapper/022:55:110
227799690,3rtkit-daemon2276-21rtkit-daemon21:54:520
1554199697,41cyclictest0-21swapper/122:41:581
15540996934,30cyclictest0-21swapper/023:25:570
1554099692,34cyclictest3000-21latency_hist21:25:010
15540996918,37cyclictest88450irq/46-eth0-tx-23:39:570
1554099685,49cyclictest0-21swapper/000:02:140
15540996843,20cyclictest0-21swapper/023:20:410
1554099683,56cyclictest11429-21munin-node22:35:310
1554099683,48cyclictest13527-21ssh21:41:480
1554099683,44cyclictest20925-21ssh23:45:400
1554099682,49cyclictest939-21ssh00:08:250
15540996819,44cyclictest88450irq/46-eth0-tx-00:18:160
15540996817,34cyclictest0-21swapper/021:27:350
15540996746,16cyclictest0-21swapper/023:30:320
15540996746,16cyclictest0-21swapper/023:30:310
15540996746,16cyclictest0-21swapper/000:37:150
15540996743,15cyclictest0-21swapper/023:10:130
1554099674,57cyclictest0-21swapper/023:58:030
1554099673,55cyclictest29350-21telnet22:10:120
1554099672,57cyclictest14068-21latency_hist20:35:020
15540996718,41cyclictest88450irq/46-eth0-tx-00:20:170
1554199666,37cyclictest0-21swapper/121:56:591
1554099665,46cyclictest0-21swapper/021:11:490
1554099665,46cyclictest0-21swapper/000:26:480
15540996644,17cyclictest0-21swapper/022:16:340
1554099663,44cyclictest5204-21munin-node20:10:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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