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2026-04-17 - 21:38
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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 rack3slot0.osadl.org (updated Fri Apr 17, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
200629914833,77cyclictest31608-21bash10:59:452
15412850,2sleep02004799cyclictest09:08:320
93812790,3sleep22006299cyclictest12:24:012
2008799620,61cyclictest5620-21kworker/7:110:59:447
20047995737,20cyclictest0-21swapper/010:59:450
169572560,0sleep00-21swapper/011:34:090
123202550,1sleep557-21ksoftirqd/509:46:185
319692530,1sleep731963-21sshd09:12:167
126572530,0sleep60-21swapper/610:49:226
43552490,1sleep14356-21grepconf.sh10:17:211
265042490,0sleep10-21swapper/110:51:571
20086994921,28cyclictest9728-21kworker/6:110:59:456
1985224925,8sleep00-21swapper/007:04:300
1973524925,8sleep70-21swapper/707:03:017
238382480,0sleep60-21swapper/611:04:526
1965524823,8sleep30-21swapper/307:01:523
53282470,1sleep11-21systemd09:42:131
317652470,0sleep40-21swapper/410:37:264
17902470,0sleep00-21swapper/009:38:200
17852470,1sleep61784-21sshd10:54:186
270502460,3sleep4786-21snmpd09:25:024
194662460,0sleep20-21swapper/210:07:052
179772460,1sleep125-21ksoftirqd/111:54:441
232862450,0sleep423284-21systemd-cgroups09:46:574
1992024525,8sleep10-21swapper/107:05:271
187392450,1sleep518738-21grep10:51:295
54422440,0sleep00-21swapper/011:13:030
113162440,0sleep20-21swapper/209:53:432
63722430,0sleep10-21swapper/107:36:011
321692430,0sleep20-21swapper/210:26:192
300802430,0sleep70-21swapper/709:10:237
186492430,0sleep60-21swapper/609:17:036
15482430,1sleep09-21ksoftirqd/012:25:270
112082430,0sleep40-21swapper/410:21:254
74362420,0sleep50-21swapper/511:48:325
213442420,0sleep50-21swapper/512:07:545
319312410,0sleep10-21swapper/111:48:041
20054994140,1cyclictest1115-21nfsd10:59:441
1968824129,8sleep50-21swapper/507:02:185
191502410,0sleep40-21swapper/412:18:584
16582410,0sleep50-21swapper/512:04:585
57132400,0sleep10-21swapper/110:43:241
197902400,0sleep00-21swapper/010:27:290
1968024028,9sleep60-21swapper/607:02:116
1961824028,8sleep20-21swapper/207:01:192
174582400,0sleep617455-21systemd-cgroups11:50:576
142902400,0sleep60-21swapper/612:26:056
99172390,0sleep10-21swapper/111:07:431
96882390,0sleep30-21swapper/312:24:023
55532390,0sleep60-21swapper/611:11:086
32252390,0sleep00-21swapper/012:31:040
17732390,0sleep10-21swapper/109:08:331
138782390,2sleep62008699cyclictest10:06:456
283742380,1sleep628377-21grepconf.sh09:54:446
1745923826,9sleep40-21swapper/407:00:494
114062370,0sleep20-21swapper/209:38:542
303052360,0sleep730300-21sshd10:30:017
2008599360,35cyclictest8205-21kworker/u16:210:59:455
20077992412,3cyclictest49-21ksoftirqd/411:15:244
20070992422,1cyclictest376-21kworker/u16:110:59:453
20077992319,3cyclictest49-21ksoftirqd/412:04:504
2007799227,2cyclictest49-21ksoftirqd/409:59:124
304702210,0sleep30-21swapper/309:45:353
2007799219,5cyclictest49-21ksoftirqd/412:10:274
2007799219,2cyclictest49-21ksoftirqd/409:06:434
2007799216,1cyclictest49-21ksoftirqd/411:46:144
2007799215,3cyclictest49-21ksoftirqd/409:27:134
2007799214,3cyclictest49-21ksoftirqd/410:16:214
20077992120,1cyclictest396-21jbd2/sda2-810:59:454
20077992112,2cyclictest49-21ksoftirqd/412:30:384
20062992116,4cyclictest33-21ksoftirqd/210:19:362
20062992116,3cyclictest33-21ksoftirqd/212:12:422
92932200,0sleep40-21swapper/411:39:184
2007799208,3cyclictest49-21ksoftirqd/410:05:574
20077992013,1cyclictest49-21ksoftirqd/411:43:584
20077992011,3cyclictest49-21ksoftirqd/410:49:324
20077992011,1cyclictest49-21ksoftirqd/409:14:154
2006299204,1cyclictest33-21ksoftirqd/210:03:512
20062992017,3cyclictest33-21ksoftirqd/209:56:002
20062992014,4cyclictest33-21ksoftirqd/212:19:162
20047992016,3cyclictest25742-21sshd10:16:430
2007799198,4cyclictest49-21ksoftirqd/411:15:554
2007799198,2cyclictest49-21ksoftirqd/410:53:234
2007799198,1cyclictest49-21ksoftirqd/411:26:364
2007799197,2cyclictest49-21ksoftirqd/412:15:174
2007799196,2cyclictest49-21ksoftirqd/411:58:524
2007799196,2cyclictest49-21ksoftirqd/411:50:574
2007799195,3cyclictest49-21ksoftirqd/412:34:454
2007799195,2cyclictest49-21ksoftirqd/410:44:004
2007799195,1cyclictest49-21ksoftirqd/410:14:044
20077991913,4cyclictest49-21ksoftirqd/411:07:164
20077991910,1cyclictest49-21ksoftirqd/409:38:144
2007799191,2cyclictest31391-21smart_sda09:51:074
2007799191,1cyclictest49-21ksoftirqd/410:33:094
2007799191,1cyclictest16456-21munin-run09:20:444
2007799190,3cyclictest49-21ksoftirqd/411:32:224
20062991916,1cyclictest33-21ksoftirqd/211:47:062
20062991915,3cyclictest492-21systemd-journal11:44:282
20062991915,1cyclictest33-21ksoftirqd/209:47:492
285572180,0sleep30-21swapper/311:59:033
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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