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2026-06-19 - 06:48
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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 100 highest latencies:
System rack1slot1.osadl.org (updated Fri Jun 19, 2026 00:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
79622214149,22sleep20-21swapper/219:07:592
79212201162,25sleep10-21swapper/119:07:251
78022201161,26sleep30-21swapper/319:05:553
60032198159,26sleep00-21swapper/019:05:030
95492670,0sleep10-21swapper/121:20:131
196222670,0sleep00-21swapper/000:30:130
14502580,0sleep20-21swapper/220:00:132
168092560,0sleep10-21swapper/122:14:131
295002170,0sleep20-21swapper/223:15:142
8214991110,1cyclictest28-21ksoftirqd/222:34:142
819999113,4cyclictest13828-21grep19:20:000
821899100,7cyclictest21452-21kworker/u8:021:30:063
821499102,6cyclictest2595-21uptime00:05:222
821499100,8cyclictest0-21swapper/200:30:392
821499100,6cyclictest0-21swapper/200:27:402
82189996,1cyclictest35-21ksoftirqd/322:40:553
82189990,8cyclictest27747-21apt-get21:45:113
81999997,1cyclictest9-21ksoftirqd/019:40:000
81999992,4cyclictest0-21swapper/019:20:130
81999990,3cyclictest240-21systemd-journal22:40:000
12982290,0sleep01292-21diskmemload23:35:300
82189987,1cyclictest35-21ksoftirqd/319:37:163
82189986,1cyclictest35-21ksoftirqd/323:21:473
82189986,1cyclictest1029-21snmpd23:45:403
82189986,1cyclictest1029-21snmpd23:36:333
82189986,1cyclictest1029-21snmpd22:37:443
82189985,1cyclictest13650irq/124-ahci[0019:54:553
82189980,5cyclictest0-21swapper/320:40:103
82189980,4cyclictest0-21swapper/322:20:123
82149988,0cyclictest3829-21ssh23:25:082
82149986,1cyclictest61650irq/122-eno123:59:262
82149986,1cyclictest61650irq/122-eno123:30:152
82149986,1cyclictest6062-21timerwakeupswit00:10:202
82149986,1cyclictest1029-21snmpd22:46:562
82149986,1cyclictest1029-21snmpd22:12:192
82149983,2cyclictest240-21systemd-journal23:39:592
82149983,1cyclictest3830-21fschecks_time22:40:142
82149981,6cyclictest0-21swapper/220:07:042
82149980,1cyclictest0-21swapper/221:58:272
82099981,4cyclictest0-21swapper/119:50:091
81999987,1cyclictest4521-21ssh21:55:450
81999987,1cyclictest1029-21snmpd21:20:010
81999986,1cyclictest693-21runrttasks23:02:580
81999986,1cyclictest1029-21snmpd20:36:130
81999986,1cyclictest1029-21snmpd19:56:240
81999986,1cyclictest1029-21snmpd19:42:390
81999983,4cyclictest27656-21unixbench_singl23:55:220
81999982,4cyclictest0-21swapper/022:02:000
81999981,4cyclictest6644-21cat20:10:150
81999980,4cyclictest6619-21perf22:45:000
81999980,4cyclictest12486-21cat20:25:000
81999980,4cyclictest0-21swapper/022:05:110
81999980,1cyclictest4510-21ssh21:14:090
81999980,1cyclictest16562-21head00:25:180
82189976,1cyclictest693-21runrttasks19:25:213
82189976,1cyclictest21338-21cat21:35:153
82189976,1cyclictest1566-21cat20:00:143
82189976,1cyclictest1029-21snmpd21:26:143
82189976,1cyclictest1029-21snmpd21:14:413
82189976,1cyclictest1029-21snmpd20:08:503
82189975,1cyclictest27594-21ssh23:11:493
82189975,1cyclictest1747-21ntpd22:45:583
82189975,1cyclictest11072-21ssh00:18:473
82189975,1cyclictest1029-21snmpd21:59:273
82189975,1cyclictest1029-21snmpd21:22:173
82189975,1cyclictest1029-21snmpd00:00:373
82189974,1cyclictest35-21ksoftirqd/319:44:553
82189973,2cyclictest240-21systemd-journal22:14:593
82189973,2cyclictest1292-21diskmemload22:28:143
82189972,4cyclictest25934-21apt-get23:55:113
82189972,3cyclictest14365-21apt-get22:55:113
82189972,2cyclictest10415-21/usr/sbin/munin22:05:133
82189971,3cyclictest13885-21/usr/sbin/munin20:25:183
82189971,1cyclictest0-21swapper/322:18:503
82189970,4cyclictest0-21swapper/323:28:013
82189970,4cyclictest0-21swapper/300:10:173
82189970,3cyclictest0-21swapper/322:53:063
82189970,3cyclictest0-21swapper/321:42:243
82189970,2cyclictest0-21swapper/320:45:123
82189970,1cyclictest0-21swapper/300:25:123
82149976,1cyclictest61650irq/122-eno122:36:422
82149976,1cyclictest61650irq/122-eno122:26:342
82149976,1cyclictest61650irq/122-eno122:15:492
82149976,1cyclictest61650irq/122-eno121:45:112
82149976,1cyclictest61650irq/122-eno119:50:102
82149976,1cyclictest61650irq/122-eno119:25:112
82149976,1cyclictest561-21nscd21:55:002
82149976,1cyclictest28567-21sh23:14:412
82149975,1cyclictest28-21ksoftirqd/221:05:002
82149975,1cyclictest23327-21ssh21:38:392
82149975,1cyclictest1029-21snmpd22:05:252
82149975,1cyclictest1029-21snmpd21:24:172
82149970,2cyclictest0-21swapper/221:28:592
82099974,3cyclictest0-21swapper/122:25:111
82099972,3cyclictest0-21swapper/122:00:481
82099970,3cyclictest0-21swapper/122:55:221
82099970,3cyclictest0-21swapper/122:15:421
82099970,3cyclictest0-21swapper/121:27:191
82099970,1cyclictest0-21swapper/120:28:011
81999976,1cyclictest8012-21ntp_offset22:45:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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