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2025-12-17 - 08:43
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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 Wed Dec 17, 2025 00:45:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
106642203163,27sleep10-21swapper/119:08:341
104652201161,26sleep30-21swapper/319:05:593
104572201162,26sleep00-21swapper/019:05:520
104762199161,25sleep20-21swapper/219:06:062
240742200,1sleep024077-21uniq19:35:160
119252130,0sleep10-21swapper/123:40:181
10874991311,1cyclictest28-21ksoftirqd/219:15:012
10862991210,1cyclictest9-21ksoftirqd/023:45:000
1088399109,1cyclictest35-21ksoftirqd/320:20:013
1088399100,2cyclictest0-21swapper/323:05:123
1087499100,9cyclictest0-21swapper/200:30:202
1086299109,1cyclictest9-21ksoftirqd/020:40:180
1086299109,1cyclictest9-21ksoftirqd/020:40:000
1086299103,6cyclictest7428-21perf20:10:010
108839990,1cyclictest0-21swapper/320:10:133
108749998,1cyclictest28-21ksoftirqd/219:45:002
108749996,1cyclictest0-21swapper/223:29:242
108629998,1cyclictest9-21ksoftirqd/021:25:000
108629998,1cyclictest9-21ksoftirqd/000:00:000
108629998,0cyclictest9-21ksoftirqd/019:35:000
108629997,1cyclictest9-21ksoftirqd/020:20:010
108629993,5cyclictest2577-21cut22:15:110
108629992,3cyclictest13235-21latency_hist19:15:010
108839987,1cyclictest35-21ksoftirqd/323:15:013
108839987,1cyclictest35-21ksoftirqd/322:15:013
108839986,1cyclictest707-21snmpd23:51:013
108839986,1cyclictest707-21snmpd22:03:153
108839986,1cyclictest707-21snmpd20:31:033
108839986,1cyclictest35-21ksoftirqd/319:51:593
108839983,2cyclictest21647-21/usr/sbin/munin22:55:143
108839980,4cyclictest0-21swapper/319:35:143
108839980,1cyclictest0-21swapper/323:40:123
108749986,1cyclictest707-21snmpd21:27:142
108749986,1cyclictest707-21snmpd20:54:312
108749986,1cyclictest707-21snmpd19:45:082
108749986,1cyclictest707-21snmpd00:38:112
108749986,1cyclictest61650irq/122-eno120:55:172
108749983,2cyclictest30288-21apt-get22:05:132
108749982,5cyclictest13229-21munin-node23:45:262
108749980,2cyclictest0-21swapper/220:25:122
108709981,6cyclictest0-21swapper/120:22:541
108629988,0cyclictest9-21ksoftirqd/021:00:000
108629987,1cyclictest9-21ksoftirqd/023:50:120
108629987,1cyclictest9-21ksoftirqd/023:10:130
108629987,1cyclictest9-21ksoftirqd/022:25:000
108629987,1cyclictest9-21ksoftirqd/000:20:130
108629986,1cyclictest9-21ksoftirqd/020:05:000
108629986,1cyclictest707-21snmpd21:10:350
108629984,1cyclictest240-21systemd-journal21:45:000
108629981,6cyclictest830-21cat23:20:010
108629980,4cyclictest16551-21perf22:45:000
108839976,1cyclictest707-21snmpd22:07:073
108839976,1cyclictest35-21ksoftirqd/323:16:173
108839976,1cyclictest35-21ksoftirqd/321:15:113
108839975,1cyclictest707-21snmpd23:45:313
108839975,1cyclictest707-21snmpd23:31:303
108839975,1cyclictest707-21snmpd23:26:333
108839975,1cyclictest707-21snmpd23:24:483
108839975,1cyclictest707-21snmpd22:51:473
108839975,1cyclictest707-21snmpd22:42:473
108839975,1cyclictest707-21snmpd22:39:053
108839975,1cyclictest707-21snmpd21:06:043
108839975,1cyclictest707-21snmpd00:26:533
108839975,1cyclictest707-21snmpd00:18:323
108839975,1cyclictest35-21ksoftirqd/321:45:593
108839975,1cyclictest26553-21sshd20:45:583
108839975,1cyclictest17017-21cat21:35:173
108839970,4cyclictest0-21swapper/321:40:133
108839970,4cyclictest0-21swapper/321:25:123
108749976,1cyclictest707-21snmpd22:30:432
108749976,1cyclictest707-21snmpd22:22:252
108749976,1cyclictest707-21snmpd00:08:222
108749976,1cyclictest707-21snmpd00:08:222
108749976,1cyclictest61650irq/122-eno121:35:132
108749976,1cyclictest61650irq/122-eno121:10:152
108749976,1cyclictest61650irq/122-eno100:15:112
108749976,1cyclictest61650irq/122-eno100:10:182
108749976,1cyclictest61650irq/122-eno100:04:432
108749976,1cyclictest28-21ksoftirqd/223:20:112
108749975,1cyclictest707-21snmpd23:08:562
108749975,1cyclictest707-21snmpd21:19:442
108749975,1cyclictest707-21snmpd20:48:492
108749975,1cyclictest12437-21taskset23:40:332
108749974,1cyclictest240-21systemd-journal22:27:082
108749973,1cyclictest7624-21unixbench_singl23:30:212
108749971,6cyclictest0-21swapper/220:00:052
108749971,4cyclictest14389-21apt-get22:40:112
108749970,6cyclictest0-21swapper/219:50:162
108749970,1cyclictest0-21swapper/200:30:002
108709971,5cyclictest0-21swapper/123:50:121
108709970,6cyclictest0-21swapper/120:19:211
108709970,6cyclictest0-21swapper/119:20:151
108709970,1cyclictest0-21swapper/121:29:471
108629977,0cyclictest9-21ksoftirqd/021:25:160
108629976,1cyclictest9-21ksoftirqd/023:05:000
108629976,1cyclictest9-21ksoftirqd/022:35:140
108629976,1cyclictest9-21ksoftirqd/022:05:150
108629976,1cyclictest9-21ksoftirqd/021:30:220
108629976,1cyclictest9-21ksoftirqd/020:25:130
108629976,1cyclictest9-21ksoftirqd/019:20:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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