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2026-04-25 - 13:49
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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 Sat Apr 25, 2026 12:45:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
209162220155,42sleep30-21swapper/307:05:013
229482218153,22sleep00-21swapper/007:06:400
230322213149,51sleep20-21swapper/207:07:472
229022211176,23sleep10-21swapper/107:06:041
218912740,0sleep10-21swapper/110:40:161
54362710,0sleep20-21swapper/211:45:002
101872600,0sleep30-21swapper/312:33:073
25562540,0sleep00-21swapper/010:57:290
151862150,0sleep30-21swapper/311:56:033
23298991414,0cyclictest28-21ksoftirqd/210:23:242
23298991313,0cyclictest28-21ksoftirqd/211:12:392
23298991310,2cyclictest14331-21ntpq07:55:182
2330499119,1cyclictest35-21ksoftirqd/307:10:123
2329899119,2cyclictest0-21swapper/210:00:132
2329899119,1cyclictest20932-21apt-get12:05:112
2329899118,2cyclictest17951-21cat09:10:202
2329899118,2cyclictest15780-21uniq11:15:172
2329899118,2cyclictest0-21swapper/210:25:162
2329899113,8cyclictest28-21ksoftirqd/210:10:432
23298991111,0cyclictest28-21ksoftirqd/209:53:272
23298991111,0cyclictest28-21ksoftirqd/209:26:002
2329899110,10cyclictest0-21swapper/210:06:262
2329399110,6cyclictest0-21swapper/109:00:111
2328599110,8cyclictest1943-21/usr/sbin/munin10:15:210
2330499100,6cyclictest240-21systemd-journal07:25:013
2329899109,1cyclictest19012-21grep10:35:212
2329899108,1cyclictest24186-21fschecks_time07:10:292
2329899108,1cyclictest16132-21diskmemload11:05:112
2329899108,1cyclictest12254-21ssh11:53:252
2329899108,1cyclictest0-21swapper/210:30:212
2329899107,2cyclictest2221-21apt-get08:40:112
2329899105,4cyclictest6273-21sed08:45:222
2329899104,5cyclictest30810-21grep07:20:222
2329899102,8cyclictest28-21ksoftirqd/212:28:322
2329899102,8cyclictest28-21ksoftirqd/212:28:312
2329899102,8cyclictest28-21ksoftirqd/212:17:462
2329899102,8cyclictest28-21ksoftirqd/211:47:362
2329899102,8cyclictest28-21ksoftirqd/210:40:452
2329899102,8cyclictest28-21ksoftirqd/209:40:342
2329899102,8cyclictest28-21ksoftirqd/209:36:512
2329899102,8cyclictest28-21ksoftirqd/209:24:102
2329899102,0cyclictest28-21ksoftirqd/209:48:402
2329899101,8cyclictest271rcuc/210:51:302
2329899100,10cyclictest0-21swapper/211:34:232
2328599103,6cyclictest3493-21perf09:35:000
159102100,0sleep016132-21diskmemload11:58:050
232989999,0cyclictest28-21ksoftirqd/212:38:042
232989999,0cyclictest28-21ksoftirqd/211:20:102
232989999,0cyclictest28-21ksoftirqd/210:15:152
232989998,1cyclictest0-21swapper/210:55:122
232989998,1cyclictest0-21swapper/210:45:112
232989997,2cyclictest0-21swapper/212:10:162
232989992,7cyclictest8406-21memory12:30:152
232989992,7cyclictest28-21ksoftirqd/211:58:512
232989992,7cyclictest28-21ksoftirqd/207:15:502
232989991,8cyclictest28-21ksoftirqd/212:21:462
232989991,8cyclictest28-21ksoftirqd/212:01:042
232989991,8cyclictest28-21ksoftirqd/211:37:032
232989991,8cyclictest28-21ksoftirqd/211:25:202
232989991,8cyclictest28-21ksoftirqd/211:01:152
232989991,8cyclictest28-21ksoftirqd/209:55:162
232989991,8cyclictest28-21ksoftirqd/209:15:212
232989991,8cyclictest28-21ksoftirqd/209:06:402
232989991,8cyclictest28-21ksoftirqd/209:00:562
232989991,8cyclictest28-21ksoftirqd/208:57:582
232989991,8cyclictest28-21ksoftirqd/208:52:292
232989991,8cyclictest28-21ksoftirqd/208:36:092
232989991,8cyclictest28-21ksoftirqd/208:34:572
232989991,8cyclictest28-21ksoftirqd/208:27:382
232989991,8cyclictest28-21ksoftirqd/208:21:562
232989991,8cyclictest28-21ksoftirqd/208:06:282
232989991,8cyclictest28-21ksoftirqd/207:47:042
232989991,8cyclictest28-21ksoftirqd/207:47:032
232989991,8cyclictest28-21ksoftirqd/207:37:042
232989991,8cyclictest28-21ksoftirqd/207:30:402
232989991,8cyclictest28-21ksoftirqd/207:26:332
232989990,8cyclictest28-21ksoftirqd/209:30:352
232859993,2cyclictest7378-21/usr/sbin/munin12:30:150
232859992,4cyclictest3564-21cat07:35:000
232859990,5cyclictest0-21swapper/011:05:120
233049986,1cyclictest17998-21snmpd11:54:583
233049986,1cyclictest17998-21snmpd11:46:103
233049986,1cyclictest17998-21snmpd11:30:223
233049986,1cyclictest17998-21snmpd10:23:483
233049986,1cyclictest17998-21snmpd08:14:063
233049986,1cyclictest17998-21snmpd08:07:073
233049986,1cyclictest17998-21snmpd07:44:583
233049986,1cyclictest17998-21snmpd07:15:543
233049981,5cyclictest25646-21munin-node08:27:343
233049981,3cyclictest16132-21diskmemload10:42:263
233049980,4cyclictest561-21nscd11:27:023
232989988,0cyclictest28-21ksoftirqd/208:15:002
232989988,0cyclictest28-21ksoftirqd/208:10:002
232989988,0cyclictest28-21ksoftirqd/208:00:022
232989988,0cyclictest28-21ksoftirqd/207:50:052
232989988,0cyclictest28-21ksoftirqd/207:40:012
232859988,0cyclictest9-21ksoftirqd/008:03:010
232859986,1cyclictest5466-21switchtime09:35:190
232859986,1cyclictest22771-21ssh12:05:290
232859984,4cyclictest16132-21diskmemload10:05:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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