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2026-03-09 - 19:13
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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 Mon Mar 09, 2026 12:45:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
315522211152,46sleep20-21swapper/207:08:552
295342207155,40sleep00-21swapper/007:05:110
315982198158,26sleep10-21swapper/107:09:291
313492198157,27sleep30-21swapper/307:06:153
290572600,0sleep30-21swapper/308:10:153
24622420,0sleep30-21swapper/312:05:203
31711992412,12cyclictest57-21kswapd011:40:131
31710991414,0cyclictest9-21ksoftirqd/008:32:040
3172299120,11cyclictest0-21swapper/212:28:522
3171099120,11cyclictest25006-21apt-get09:50:100
3171099119,2cyclictest8345-21apt-get10:10:110
3171099119,1cyclictest9-21ksoftirqd/007:50:010
3171099119,1cyclictest13064-21cut09:35:000
3171099119,1cyclictest0-21swapper/012:12:320
31710991111,0cyclictest31854-21apt-get10:40:100
3172299108,1cyclictest28-21ksoftirqd/208:50:112
3171099109,1cyclictest8550-21ssh11:32:220
3171099109,1cyclictest0-21swapper/012:25:180
3171099109,1cyclictest0-21swapper/010:56:100
3171099109,1cyclictest0-21swapper/010:50:130
3171099109,1cyclictest0-21swapper/008:25:110
3171099109,1cyclictest0-21swapper/007:30:140
3171099108,2cyclictest0-21swapper/009:20:120
3171099108,1cyclictest23459-21ssh12:33:410
3171099108,1cyclictest0-21swapper/008:15:150
3171099102,8cyclictest9-21ksoftirqd/012:24:040
3171099102,8cyclictest9-21ksoftirqd/009:47:390
3171099102,8cyclictest9-21ksoftirqd/009:12:150
317249990,5cyclictest31930-21apt-get07:10:113
317229997,1cyclictest28-21ksoftirqd/207:30:002
317229995,1cyclictest4782-21/usr/sbin/munin08:25:202
317229990,1cyclictest0-21swapper/209:05:162
317109999,0cyclictest9-21ksoftirqd/012:05:510
317109999,0cyclictest9-21ksoftirqd/012:03:420
317109999,0cyclictest9-21ksoftirqd/011:51:290
317109999,0cyclictest9-21ksoftirqd/011:46:050
317109999,0cyclictest9-21ksoftirqd/011:35:360
317109999,0cyclictest9-21ksoftirqd/011:20:300
317109999,0cyclictest9-21ksoftirqd/011:15:020
317109999,0cyclictest9-21ksoftirqd/011:11:550
317109999,0cyclictest9-21ksoftirqd/011:02:250
317109999,0cyclictest9-21ksoftirqd/010:48:230
317109999,0cyclictest9-21ksoftirqd/010:48:230
317109999,0cyclictest9-21ksoftirqd/010:37:120
317109999,0cyclictest9-21ksoftirqd/010:26:450
317109999,0cyclictest9-21ksoftirqd/010:21:210
317109999,0cyclictest9-21ksoftirqd/010:15:070
317109999,0cyclictest9-21ksoftirqd/010:00:580
317109999,0cyclictest9-21ksoftirqd/009:57:170
317109999,0cyclictest9-21ksoftirqd/009:15:090
317109999,0cyclictest9-21ksoftirqd/009:05:220
317109999,0cyclictest9-21ksoftirqd/009:03:260
317109999,0cyclictest9-21ksoftirqd/008:55:170
317109999,0cyclictest9-21ksoftirqd/008:50:590
317109999,0cyclictest9-21ksoftirqd/008:43:430
317109999,0cyclictest9-21ksoftirqd/008:21:230
317109999,0cyclictest9-21ksoftirqd/008:07:040
317109999,0cyclictest9-21ksoftirqd/007:53:300
317109999,0cyclictest9-21ksoftirqd/007:21:120
317109999,0cyclictest9-21ksoftirqd/007:12:230
317109998,1cyclictest0-21swapper/012:35:190
317109998,1cyclictest0-21swapper/009:25:310
317109997,2cyclictest0-21swapper/007:40:000
317109995,4cyclictest0-21swapper/009:43:120
317109992,0cyclictest9-21ksoftirqd/011:41:090
317109992,0cyclictest9-21ksoftirqd/008:00:460
317109991,8cyclictest9-21ksoftirqd/012:15:490
317109991,8cyclictest0-21swapper/011:55:030
317109990,8cyclictest9-21ksoftirqd/010:30:090
317109990,8cyclictest9-21ksoftirqd/008:35:310
317249988,0cyclictest0-21swapper/310:40:153
317249987,1cyclictest35-21ksoftirqd/308:40:103
317249986,1cyclictest707-21snmpd11:50:283
317249986,1cyclictest707-21snmpd10:24:433
317249986,1cyclictest707-21snmpd09:46:273
317249986,1cyclictest19795-21cat11:05:153
317249984,2cyclictest240-21systemd-journal10:04:553
317249982,2cyclictest11992-21apt-get07:35:123
317249981,6cyclictest24575-21diskmemload12:34:243
317249981,4cyclictest17487-21fschecks_count07:45:133
317249981,3cyclictest19272-21apt-get07:50:113
317229986,1cyclictest707-21snmpd12:21:232
317229986,1cyclictest707-21snmpd11:53:462
317229986,1cyclictest707-21snmpd09:53:422
317229986,1cyclictest61650irq/122-eno112:00:182
317229986,1cyclictest61650irq/122-eno111:55:172
317229986,1cyclictest61650irq/122-eno111:15:142
317229986,1cyclictest61650irq/122-eno111:05:102
317229986,1cyclictest61650irq/122-eno110:48:082
317229986,1cyclictest61650irq/122-eno110:48:072
317229986,1cyclictest61650irq/122-eno110:10:002
317229986,1cyclictest61650irq/122-eno109:25:152
317229984,2cyclictest240-21systemd-journal12:40:002
317229980,8cyclictest0-21swapper/209:39:012
317229980,5cyclictest28-21ksoftirqd/212:10:112
317109988,0cyclictest9-21ksoftirqd/008:10:020
317109988,0cyclictest9-21ksoftirqd/007:40:010
317109988,0cyclictest9-21ksoftirqd/007:25:020
317109988,0cyclictest9-21ksoftirqd/007:15:030
317109980,8cyclictest9-21ksoftirqd/011:25:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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