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2026-03-24 - 07:11
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack0slot0.osadl.org (updated Tue Mar 24, 2026 00:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1888121360,0sleep41-21systemd00:32:594
409821230,1sleep24077-21sshd21:12:272
409821230,1sleep24077-21sshd21:12:272
1054921230,0sleep10-21swapper/123:38:461
484921210,0sleep70-21swapper/722:41:217
484921210,0sleep70-21swapper/722:41:217
1386121200,0sleep50-21swapper/521:56:305
1337321190,1sleep1669-21systemd-logind00:14:121
171021160,1sleep4679-21dbus-daemon23:23:104
113562900,0sleep711355-21sshd22:48:267
126912860,0sleep00-21swapper/023:00:130
248292850,1sleep4491rcuc/421:23:354
148442800,1sleep5591ktimersoftd/522:13:225
48252780,0sleep20-21swapper/223:48:322
272902780,1sleep2311rcuc/223:51:212
236782780,0sleep70-21swapper/722:35:367
236782780,0sleep70-21swapper/722:35:367
190782780,0sleep50-21swapper/523:34:095
107592780,0sleep20-21swapper/200:35:532
96792770,1sleep29670-21cp23:35:182
319132770,1sleep30-21swapper/321:25:343
246162770,1sleep51-21systemd00:16:255
308562760,1sleep6671rcuc/600:06:406
45002750,0sleep21-21systemd23:55:142
256332750,0sleep70-21swapper/721:50:237
220802750,0sleep10-21swapper/122:07:001
7092740,1sleep2321ktimersoftd/222:52:542
160042740,1sleep715998-21bash22:00:017
59532730,1sleep55951-21sshd21:42:435
58952730,0sleep50-21swapper/520:40:105
55462730,0sleep50-21swapper/521:24:165
257422730,1sleep025702-21sshd22:27:190
187702730,1sleep018753-21bash00:06:010
168542730,0sleep40-21swapper/419:55:144
167802730,4sleep32645499cyclictest22:57:043
144462730,0sleep2321ktimersoftd/221:51:312
45882720,0sleep10-21swapper/123:01:271
294612720,3sleep02643399cyclictest21:30:280
293742720,1sleep40-21swapper/423:43:054
141462720,0sleep00-21swapper/021:53:120
231292710,3sleep342-21ksoftirqd/322:37:163
231292710,3sleep342-21ksoftirqd/322:37:153
173042710,1sleep2311rcuc/222:33:382
173042710,1sleep2311rcuc/222:33:382
166632710,0sleep60-21swapper/623:40:436
29192700,5sleep22644399cyclictest22:49:412
221432700,0sleep20-21swapper/223:30:532
150432700,1sleep11012-21runrttasks22:45:161
79362690,0sleep60-21swapper/622:28:056
79362690,0sleep20-21swapper/223:03:202
55792690,0sleep10-21swapper/119:30:191
322862690,1sleep1231ktimersoftd/122:19:191
257232690,1sleep20-21swapper/221:31:592
256462690,0sleep10-21swapper/123:58:011
203232690,0sleep20-21swapper/222:37:072
203232690,0sleep20-21swapper/222:37:072
198542690,0sleep10-21swapper/123:19:061
158542690,0sleep70-21swapper/721:13:047
158542690,0sleep70-21swapper/721:13:037
134972690,0sleep00-21swapper/000:17:310
88182680,0sleep30-21swapper/321:57:563
29382680,1sleep62939-21grep00:38:546
175272680,0sleep70-21swapper/723:39:087
119472680,0sleep70-21swapper/723:55:357
187632670,0sleep60-21swapper/623:35:466
78432660,0sleep70-21swapper/722:13:007
127252660,0sleep60-21swapper/623:45:326
244762650,26sleep313450irq/24-ahci[00021:23:343
190802650,3sleep02643399cyclictest23:29:060
79862630,0sleep20-21swapper/200:30:402
275412630,0sleep40-21swapper/422:05:344
230302610,0sleep10-21swapper/122:55:421
75062600,0sleep20-21swapper/221:27:422
287362600,0sleep60-21swapper/622:07:216
237862600,0sleep60-21swapper/600:23:076
74232590,0sleep30-21swapper/323:28:303
2606125949,6sleep30-21swapper/319:08:183
2601425949,6sleep10-21swapper/119:07:451
60932580,0sleep26095-21id23:08:172
2612725848,6sleep40-21swapper/419:09:084
2601825848,6sleep50-21swapper/519:07:495
80322570,0sleep60-21swapper/622:31:266
80322570,0sleep60-21swapper/622:31:266
244922570,0sleep40-21swapper/422:45:434
320102550,0sleep00-21swapper/000:23:330
2605825444,6sleep00-21swapper/019:08:160
190182530,1sleep718987-21sshd22:18:377
2612024736,7sleep60-21swapper/619:09:036
2608924534,7sleep20-21swapper/219:08:422
54372420,0sleep60-21swapper/622:16:116
2584324231,7sleep70-21swapper/719:05:357
185892380,1sleep518588-21sshd00:26:115
207462300,0sleep30-21swapper/323:04:003
270042290,0sleep20-21swapper/200:06:282
26477992813,14cyclictest0-21swapper/700:19:517
207612280,1sleep1669-21systemd-logind21:21:391
2647199267,4cyclictest0-21swapper/621:18:526
2647199267,4cyclictest0-21swapper/621:18:516
2643399260,22cyclictest0-21swapper/021:15:150
2643399260,22cyclictest0-21swapper/021:15:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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