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2025-06-17 - 01:46
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rack0slot1.osadl.org (updated Tue Jun 17, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1935821550,2sleep7319699cyclictest21:44:337
768521520,2sleep7319699cyclictest19:44:467
53721520,0sleep20-21swapper/223:49:372
1006521480,2sleep2318999cyclictest22:58:482
2759421470,1sleep2318999cyclictest21:14:072
815621460,0sleep70-21swapper/719:02:317
2072921440,0sleep20-21swapper/220:04:202
31959913933,59cyclictest14342-21chk_conn_tcp22:40:456
1559321380,0sleep60-21swapper/623:44:126
44121350,2sleep5319499cyclictest22:55:555
31949913333,0cyclictest3730-21watchprog-ntop20:00:355
1717721310,2sleep0318499cyclictest22:50:210
1293621300,1sleep1318899cyclictest20:28:551
2232521290,1sleep0318499cyclictest19:36:380
31969912539,55cyclictest3730-21watchprog-ntop22:58:237
31969912422,57cyclictest0-21swapper/719:53:077
31949912218,19cyclictest16495-21chk_conn_tcp23:19:145
1615621220,0sleep30-21swapper/300:20:233
1324321220,3sleep4319299cyclictest20:15:204
3192991211,55cyclictest0-21swapper/422:37:014
31959911956,32cyclictest8375-21Collectd-Thread21:09:406
377821170,0sleep70-21swapper/720:53:137
31949911719,20cyclictest0-21swapper/520:29:365
31949911625,29cyclictest3730-21watchprog-ntop20:56:195
861921140,2sleep5319499cyclictest00:26:585
31959911435,40cyclictest4673-21chk_conn_tcp00:14:166
800921130,1sleep18007-21ssh21:29:371
31949911333,16cyclictest0-21swapper/523:34:115
31929911237,6cyclictest3730-21watchprog-ntop20:40:494
2076121120,0sleep10-21swapper/123:35:571
515321110,0sleep20-21swapper/221:28:342
3196991119,77cyclictest3730-21watchprog-ntop00:01:277
31959911136,22cyclictest3730-21watchprog-ntop20:09:086
31959911110,59cyclictest0-21swapper/622:24:126
31849911118,58cyclictest188850irq/25-eth022:14:030
313921110,1sleep232-21rcuc/221:38:592
31959911026,64cyclictest0-21swapper/619:02:536
31949911011,18cyclictest3730-21watchprog-ntop21:11:495
3195991092,71cyclictest3730-21watchprog-ntop19:49:546
3194991094,80cyclictest27157-21openvpn00:22:495
31849910932,37cyclictest188850irq/25-eth022:33:490
3184991091,37cyclictest0-21swapper/022:43:260
3184991091,37cyclictest0-21swapper/022:43:260
31969910851,23cyclictest0-21swapper/722:13:307
31969910825,76cyclictest16165-21chk_conn_tcp20:36:337
190821080,0sleep40-21swapper/420:24:254
2492421070,0sleep10-21swapper/122:19:451
892721060,0sleep50-21swapper/521:29:575
31969910623,13cyclictest8801-21chk_conn_tcp21:18:457
31949910637,10cyclictest0-21swapper/520:40:175
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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