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2026-03-14 - 09:52
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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 rack7slot1.osadl.org (updated Sat Mar 14, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14434211652,23sleep10-21swapper/119:08:531
1806721150,1sleep21711-21stress23:02:412
14458211453,23sleep00-21swapper/019:09:110
14431210350,48sleep30-21swapper/319:08:513
12665210075,20sleep20-21swapper/219:05:082
14623995225,24cyclictest0-21swapper/022:55:140
14623995132,17cyclictest0-21swapper/022:37:500
1462399498,32cyclictest0-21swapper/022:10:010
14623994822,11cyclictest1711-21stress22:15:150
14623994822,11cyclictest1711-21stress22:15:150
14623994728,16cyclictest0-21swapper/000:30:000
14623994712,11cyclictest1711-21stress00:23:420
1462399467,23cyclictest0-21swapper/023:45:270
14623994628,15cyclictest0-21swapper/023:54:170
14623994628,15cyclictest0-21swapper/023:54:160
14623994528,15cyclictest0-21swapper/000:38:230
14623994527,15cyclictest0-21swapper/023:35:160
14623994527,15cyclictest0-21swapper/023:35:160
14623994526,16cyclictest0-21swapper/022:30:140
14623994427,15cyclictest0-21swapper/000:00:170
14623994425,16cyclictest0-21swapper/021:35:360
14623994422,12cyclictest0-21swapper/000:33:470
14623994413,18cyclictest1711-21stress23:30:310
14623994413,18cyclictest1711-21stress23:30:310
14623994411,25cyclictest0-21swapper/021:27:340
1462399435,23cyclictest0-21swapper/021:15:360
14623994326,15cyclictest0-21swapper/023:55:250
14623994326,15cyclictest0-21swapper/023:41:410
14623994316,17cyclictest1711-21stress22:50:170
1462399428,28cyclictest0-21swapper/019:25:220
14623994227,12cyclictest0-21swapper/022:45:140
14623994217,15cyclictest15805-21/usr/sbin/munin19:10:180
14623994216,14cyclictest1711-21stress21:10:330
14626994118,20cyclictest0-21swapper/323:15:323
1462399417,24cyclictest0-21swapper/023:15:140
14623994126,13cyclictest0-21swapper/021:30:250
14623994124,14cyclictest0-21swapper/022:24:240
14623994124,14cyclictest0-21swapper/022:24:240
14623994117,9cyclictest1708-21stress21:20:120
14623994117,10cyclictest20710-21basename23:10:110
14623994114,14cyclictest1711-21stress21:50:000
14623994113,13cyclictest1711-21stress00:05:470
14623994113,13cyclictest1711-21stress00:05:470
14623994113,13cyclictest1708-21stress23:27:360
1462699403,35cyclictest1711-21stress22:28:453
14626994019,19cyclictest0-21swapper/322:40:203
14626994018,20cyclictest0-21swapper/322:50:273
1462399406,24cyclictest0-21swapper/021:50:140
14623994026,13cyclictest0-21swapper/020:25:460
14623994014,17cyclictest12814-21munin-run20:20:000
14623994014,13cyclictest1711-21stress23:05:140
14623994013,16cyclictest1711-21stress22:10:200
14623994012,12cyclictest1711-21stress23:00:090
1462699396,30cyclictest0-21swapper/321:55:173
14626993917,19cyclictest0-21swapper/300:22:433
1462399397,24cyclictest0-21swapper/020:00:110
14623993922,5cyclictest1707-21stress21:55:220
14623993915,8cyclictest29381-21proc_pri19:40:210
14623993913,11cyclictest1711-21stress00:16:050
14623993912,16cyclictest1711-21stress23:22:270
14623993912,16cyclictest1711-21stress22:40:160
1462699385,30cyclictest0-21swapper/322:37:503
1462699385,30cyclictest0-21swapper/320:30:113
14626993819,16cyclictest0-21swapper/321:40:283
14626993819,16cyclictest0-21swapper/321:40:273
14626993818,18cyclictest0-21swapper/321:15:163
14626993817,19cyclictest0-21swapper/300:25:233
1462399388,23cyclictest0-21swapper/020:05:220
1462399387,18cyclictest0-21swapper/020:50:230
14623993815,8cyclictest30869-21grep21:00:170
14623993815,21cyclictest0-21swapper/020:35:130
14623993814,19cyclictest0-21swapper/019:35:280
14623993814,13cyclictest1215-21proc_pri19:50:220
1462699376,28cyclictest0-21swapper/323:44:003
1462699376,27cyclictest1708-21stress21:25:243
1462699373,31cyclictest1711-21stress23:58:263
1462699373,31cyclictest0-21swapper/322:57:263
1462699372,32cyclictest1708-21stress00:14:243
1462699372,32cyclictest1708-21stress00:14:243
14626993718,16cyclictest0-21swapper/323:08:333
1462399379,20cyclictest0-21swapper/019:45:200
1462399379,12cyclictest1711-21stress22:25:140
1462399377,23cyclictest0-21swapper/020:43:020
14623993715,11cyclictest24110-21diskstats20:45:120
14623993712,9cyclictest1708-21stress00:10:130
14623993712,9cyclictest1708-21stress00:10:130
234222365,13sleep20-21swapper/220:44:542
213972365,13sleep10-21swapper/119:20:511
195762364,11sleep10-21swapper/119:19:551
16212365,13sleep10-21swapper/121:09:541
1462699366,27cyclictest1711-21stress23:30:243
1462699366,27cyclictest1711-21stress23:30:233
1462699366,27cyclictest1708-21stress23:20:283
1462699366,27cyclictest1708-21stress22:20:353
1462699366,27cyclictest1708-21stress22:20:353
1462699366,27cyclictest0-21swapper/319:30:133
1462699366,26cyclictest1711-21stress00:35:143
1462699364,29cyclictest1708-21stress00:15:213
1462699363,30cyclictest1711-21stress21:10:223
1462699363,30cyclictest1708-21stress22:05:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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