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2026-03-18 - 02:46
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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 Wed Mar 18, 2026 00:45:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2113821270,1sleep61-21systemd00:11:196
2867821250,0sleep30-21swapper/323:33:253
185812860,1sleep20-21swapper/223:00:062
220682850,1sleep722071-21bash21:40:377
139482810,0sleep20-21swapper/221:48:572
56632800,0sleep30-21swapper/300:01:463
56632800,0sleep30-21swapper/300:01:463
54542800,1sleep25458-21bash22:50:522
123582800,0sleep50-21swapper/523:27:265
118022800,0sleep30-21swapper/323:18:423
113272800,1sleep311302-21sshd23:50:003
113272800,1sleep311302-21sshd23:50:003
93722790,0sleep50-21swapper/523:08:115
55442790,1sleep20-21swapper/223:33:562
205232790,0sleep70-21swapper/722:56:427
190342790,1sleep20-21swapper/223:05:192
310042780,0sleep00-21swapper/023:42:120
234052780,1sleep023406-21grepconf.sh22:25:500
234052780,1sleep023406-21grepconf.sh22:25:500
184382780,0sleep60-21swapper/622:29:096
184382780,0sleep60-21swapper/622:29:086
62192770,1sleep06202-21sshd22:35:200
62192770,1sleep06202-21sshd22:35:200
153572770,1sleep4501ktimersoftd/423:44:564
129472770,1sleep30-21swapper/322:06:053
274632760,1sleep30-21swapper/322:24:253
161362760,1sleep70-21swapper/721:38:377
153792760,0sleep20-21swapper/221:24:532
153792760,0sleep20-21swapper/221:24:522
112172760,1sleep011213-21sshd21:21:060
112172760,1sleep011213-21sshd21:21:060
75632750,0sleep70-21swapper/723:08:057
194832750,0sleep50-21swapper/500:09:345
194832750,0sleep50-21swapper/500:09:345
169152750,0sleep60-21swapper/623:46:436
169152750,0sleep60-21swapper/623:46:436
11582750,1sleep31102-21nfsd23:28:353
160322740,0sleep40-21swapper/422:34:114
160322740,0sleep40-21swapper/422:34:114
113772740,0sleep70-21swapper/722:16:277
62642730,0sleep50-21swapper/500:01:485
62642730,0sleep50-21swapper/500:01:485
273472730,0sleep20-21swapper/221:15:072
179522730,3sleep6193399cyclictest22:02:566
78392720,0sleep50-21swapper/522:02:235
244302720,0sleep60-21swapper/621:45:566
22502720,3sleep5192699cyclictest23:45:535
22502720,3sleep5192699cyclictest23:45:535
188542720,0sleep00-21swapper/022:58:200
32942710,0sleep60-21swapper/621:53:266
276862710,0sleep40-21swapper/421:21:584
276862710,0sleep40-21swapper/421:21:574
268082710,0sleep00-21swapper/000:01:110
268082710,0sleep00-21swapper/000:01:110
250312710,0sleep50-21swapper/522:56:575
25972700,0sleep10-21swapper/122:50:421
189542700,0sleep60-21swapper/621:42:126
16302700,0sleep60-21swapper/622:14:186
16302700,0sleep60-21swapper/622:14:186
5352690,1sleep71012-21runrttasks23:58:067
5352690,1sleep71012-21runrttasks23:58:067
223462690,0sleep20-21swapper/222:17:022
85142680,0sleep00-21swapper/023:20:160
3942680,0sleep60-21swapper/621:55:016
301472680,0sleep20-21swapper/222:47:002
37132670,0sleep70-21swapper/722:43:527
225862670,0sleep60-21swapper/600:20:096
126142670,0sleep5591ktimersoftd/521:59:105
63172660,2sleep5192699cyclictest23:01:055
164172660,1sleep41-21systemd23:58:594
164172660,1sleep41-21systemd23:58:594
155032660,1sleep715505-21sshd22:25:257
155032660,1sleep715505-21sshd22:25:257
33832630,4sleep7193899cyclictest22:30:067
33832630,4sleep7193899cyclictest22:30:067
29522630,4sleep6193399cyclictest23:35:296
247742620,0sleep20-21swapper/221:42:322
313192610,3sleep6193399cyclictest00:25:386
106552610,0sleep20-21swapper/223:29:072
135825926,16sleep50-21swapper/519:05:565
269692570,0sleep20-21swapper/222:10:212
269692570,0sleep20-21swapper/222:10:212
148525747,6sleep30-21swapper/319:07:293
142872570,3sleep1190499cyclictest00:00:321
142872570,3sleep1190499cyclictest00:00:321
116792570,0sleep20-21swapper/222:32:092
116792570,0sleep20-21swapper/222:32:092
147325545,6sleep00-21swapper/019:07:190
147025343,6sleep60-21swapper/619:07:176
158625040,6sleep10-21swapper/119:08:491
175202490,4sleep7193899cyclictest23:00:037
138472430,0sleep50-21swapper/500:14:315
175432420,0sleep30-21swapper/322:35:553
175432420,0sleep30-21swapper/322:35:553
249732410,0sleep70-21swapper/721:30:277
144824131,6sleep20-21swapper/219:06:562
133124129,7sleep70-21swapper/719:05:337
132824130,7sleep40-21swapper/419:05:314
193899310,29cyclictest0-21swapper/722:35:177
193899310,29cyclictest0-21swapper/722:35:167
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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