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2026-04-23 - 12:06
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack3slot2.osadl.org (updated Thu Apr 23, 2026 00:44:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
164364922680,2chrt1643648-21awk20:26:160
163595922610,3chrt22-21kcompactd020:00:040
165329522530,3chrt1653293-21ntpq21:01:120
163228522520,4chrt1632282-21ntpq19:45:460
168770522440,2sleep01687706-21/usr/sbin/munin23:05:220
162097622390,2sleep01620977-21/usr/sbin/munin19:05:220
169794522320,3chrt1697947-21grep23:41:170
162200299227196,20cyclictest29-21kswapd000:11:140
162200299208178,19cyclictest29-21kswapd000:15:210
162200299202170,20cyclictest1712225-21kworker/u2:200:40:030
162200299194163,19cyclictest1654039-21kworker/u2:221:15:040
170533421910,2sleep01705335-21cat00:10:060
162200299191161,18cyclictest1710823-21kworker/u2:100:35:030
162200299191161,18cyclictest1654039-21kworker/u2:221:10:040
166306621900,4chrt1663067-21proc_pri21:36:140
162200299190159,19cyclictest1673962-21kworker/u2:022:40:050
162200299189158,19cyclictest1694952-21kworker/u2:123:35:030
166121921850,2sleep01661217-21diskstats21:30:180
162200299184154,19cyclictest1647580-21kworker/u2:120:50:030
168749821830,2sleep01687499-21latency_hist23:05:070
162346321830,3sleep01623464-21cat19:15:080
162200299183152,19cyclictest1703881-21kworker/u2:000:30:030
162200299182152,19cyclictest1673962-21kworker/u2:022:25:050
162200299182151,20cyclictest1629411-21kworker/u2:119:40:060
167353621800,3chrt1673534-21sshd22:15:040
164576621800,3sleep01645768-21wc20:35:080
169107621790,2sleep01691078-21cut23:16:180
162200299178147,19cyclictest1647580-21kworker/u2:120:45:030
162200299178146,19cyclictest1623398-21kworker/u2:219:25:080
162200299177146,19cyclictest1623398-21kworker/u2:219:20:060
162200299176146,20cyclictest1637825-21kworker/u2:120:15:040
162200299176146,19cyclictest1623398-21kworker/u2:219:30:080
162200299176145,20cyclictest1689380-21kworker/u2:023:15:070
162200299175142,21cyclictest1702963-21munin-node00:00:110
170281321740,3sleep01702815-21sendmail00:00:010
162200299171139,20cyclictest1689380-21kworker/u2:023:40:070
162200299170131,26cyclictest1623398-21kworker/u2:219:55:080
166007421690,4chrt1660064-21ntpq21:25:350
162200299169139,19cyclictest1661001-21kworker/u2:021:45:060
165885621680,3chrt1658854-21ntpq21:21:090
162200299168138,19cyclictest1685651-21kworker/u2:023:00:070
162200299168138,17cyclictest1703881-21kworker/u2:000:20:320
162200299168137,19cyclictest1637825-21kworker/u2:120:10:080
162200299168135,20cyclictest1647580-21kworker/u2:121:00:070
165000921660,4chrt1650010-21grep20:50:110
162200299166136,19cyclictest1637825-21kworker/u2:120:15:360
162200299164135,19cyclictest1673962-21kworker/u2:022:31:190
167121421630,3chrt1671211-21ntpq22:05:350
162200299162131,20cyclictest1689380-21kworker/u2:023:50:020
162200299161130,18cyclictest1654039-21kworker/u2:221:20:080
162200299160130,19cyclictest1689380-21kworker/u2:023:30:070
162200299160128,20cyclictest1645696-21kworker/u2:220:40:030
162200299157127,19cyclictest1689380-21kworker/u2:023:25:070
162200299155123,20cyclictest1689380-21kworker/u2:023:50:230
162200299153122,19cyclictest1661001-21kworker/u2:021:50:120
162200299150122,18cyclictest1673962-21kworker/u2:022:20:050
162200299150121,18cyclictest1661001-21kworker/u2:022:00:040
162200299149120,18cyclictest1683274-21kworker/u2:122:51:130
162200299149120,18cyclictest1623398-21kworker/u2:219:31:200
162200299148119,18cyclictest1623398-21kworker/u2:220:05:040
162200299146117,19cyclictest1673962-21kworker/u2:022:26:090
162200299146116,19cyclictest1680505-21kworker/u2:222:46:170
162200299145114,20cyclictest1623398-21kworker/u2:219:41:040
162200299144114,19cyclictest1661001-21kworker/u2:022:05:060
162200299142112,19cyclictest1642009-21kworker/u2:020:21:190
162200299139109,19cyclictest1673962-21kworker/u2:022:40:330
162200299134105,19cyclictest1661001-21kworker/u2:021:45:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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