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2026-04-30 - 11:25
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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 376 highest latencies:
System rack7slot1.osadl.org (updated Thu Apr 30, 2026 00:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2127021140,1sleep028498-21stress22:15:010
2127021140,1sleep028498-21stress22:15:010
8253210355,43sleep10-21swapper/119:09:251
825229650,41sleep00-21swapper/019:09:240
824428659,23sleep20-21swapper/219:09:182
643528557,23sleep30-21swapper/319:05:093
8412995032,16cyclictest0-21swapper/222:40:222
8412994930,16cyclictest0-21swapper/222:46:232
8412994830,15cyclictest0-21swapper/221:20:322
8412994732,12cyclictest0-21swapper/223:05:332
8412994731,13cyclictest0-21swapper/223:00:232
8412994729,15cyclictest0-21swapper/223:40:322
8412994632,12cyclictest0-21swapper/222:54:022
8412994631,13cyclictest0-21swapper/223:30:272
8412994628,15cyclictest0-21swapper/200:02:392
8412994628,15cyclictest0-21swapper/200:02:392
8412994530,13cyclictest0-21swapper/222:11:192
8412994530,13cyclictest0-21swapper/222:11:192
8412994530,13cyclictest0-21swapper/221:25:232
8412994529,13cyclictest0-21swapper/222:57:372
8412994525,17cyclictest0-21swapper/222:05:022
8412994429,13cyclictest0-21swapper/221:41:392
8412994428,14cyclictest0-21swapper/200:22:482
8412994428,14cyclictest0-21swapper/200:10:322
8412994427,15cyclictest0-21swapper/222:20:182
8412994427,15cyclictest0-21swapper/221:50:282
8412994326,15cyclictest0-21swapper/221:35:242
8410994314,20cyclictest0-21swapper/023:20:060
8410994314,20cyclictest0-21swapper/023:20:060
8412994228,12cyclictest0-21swapper/222:30:302
8412994124,15cyclictest0-21swapper/222:07:022
8412994025,13cyclictest0-21swapper/200:32:572
8412994025,13cyclictest0-21swapper/200:32:572
8412994024,13cyclictest0-21swapper/221:45:222
8410994014,23cyclictest0-21swapper/023:19:510
8410994010,27cyclictest0-21swapper/021:54:090
8412993925,12cyclictest0-21swapper/223:35:512
8412993918,19cyclictest0-21swapper/200:38:422
8412993918,19cyclictest0-21swapper/200:38:422
8412993912,24cyclictest0-21swapper/221:30:262
8410993914,23cyclictest0-21swapper/021:57:210
8410993914,22cyclictest0-21swapper/022:19:530
8410993913,23cyclictest0-21swapper/022:26:310
8410993913,23cyclictest0-21swapper/000:26:200
8410993913,18cyclictest0-21swapper/020:30:190
8412993822,14cyclictest0-21swapper/221:15:162
8410993816,19cyclictest0-21swapper/021:44:510
8410993815,20cyclictest0-21swapper/000:19:360
8410993810,25cyclictest0-21swapper/022:30:180
8413993716,18cyclictest0-21swapper/322:23:543
8413993714,20cyclictest0-21swapper/323:13:003
8410993714,20cyclictest0-21swapper/023:49:090
8410993711,24cyclictest0-21swapper/022:38:470
44612375,13sleep00-21swapper/020:11:310
109552375,13sleep00-21swapper/020:26:310
8412993622,12cyclictest0-21swapper/223:50:232
8412993618,15cyclictest0-21swapper/221:10:242
8410993614,19cyclictest0-21swapper/021:25:320
8410993614,17cyclictest0-21swapper/019:25:280
102862365,13sleep00-21swapper/019:12:210
841299359,23cyclictest0-21swapper/200:06:192
8412993519,14cyclictest0-21swapper/220:05:162
8412993519,14cyclictest0-21swapper/219:25:182
841199356,22cyclictest0-21swapper/120:53:111
841099356,23cyclictest0-21swapper/019:50:160
8410993515,17cyclictest0-21swapper/022:20:090
8410993515,17cyclictest0-21swapper/000:20:190
8410993514,18cyclictest0-21swapper/022:49:410
8410993512,20cyclictest0-21swapper/022:09:240
284012355,13sleep30-21swapper/319:54:193
24992355,12sleep30-21swapper/320:09:343
241292355,13sleep30-21swapper/319:44:273
176142355,13sleep10-21swapper/120:43:561
8413993416,15cyclictest0-21swapper/323:24:483
8413993416,15cyclictest0-21swapper/323:24:483
841299349,22cyclictest0-21swapper/223:45:142
841299349,22cyclictest0-21swapper/200:15:082
841299347,25cyclictest0-21swapper/219:35:182
8412993418,14cyclictest0-21swapper/219:45:142
8412993416,16cyclictest0-21swapper/219:20:172
8412993413,19cyclictest0-21swapper/223:20:272
8412993413,19cyclictest0-21swapper/223:20:272
8412993413,18cyclictest0-21swapper/222:40:022
8412993413,14cyclictest0-21swapper/220:35:062
8411993416,16cyclictest0-21swapper/122:11:371
8411993416,16cyclictest0-21swapper/122:11:371
8411993410,21cyclictest0-21swapper/122:25:011
8410993413,14cyclictest0-21swapper/020:45:510
8410993412,16cyclictest0-21swapper/021:05:350
8410993412,16cyclictest0-21swapper/021:05:350
8410993412,15cyclictest0-21swapper/019:40:510
8413993314,16cyclictest0-21swapper/323:25:563
8413993314,16cyclictest0-21swapper/323:25:563
8412993314,17cyclictest0-21swapper/220:45:212
8412993312,19cyclictest0-21swapper/223:10:242
841199336,25cyclictest0-21swapper/123:10:301
8411993311,16cyclictest0-21swapper/120:46:351
841099335,26cyclictest0-21swapper/020:18:020
841099335,21cyclictest0-21swapper/020:20:290
841099335,21cyclictest0-21swapper/019:55:060
8410993314,17cyclictest0-21swapper/023:04:360
8410993313,15cyclictest0-21swapper/019:45:410
8410993312,16cyclictest0-21swapper/020:50:510
325162335,12sleep10-21swapper/120:01:261
233752335,10sleep10-21swapper/120:55:231
88472325,12sleep10-21swapper/120:21:591
841399325,25cyclictest0-21swapper/319:26:553
8413993213,17cyclictest0-21swapper/322:31:403
8413993213,16cyclictest0-21swapper/323:06:563
841299329,20cyclictest0-21swapper/200:30:022
841299328,22cyclictest0-21swapper/220:43:182
841299328,22cyclictest0-21swapper/220:26:482
841299328,22cyclictest0-21swapper/220:20:382
8412993212,18cyclictest0-21swapper/219:15:262
8412993211,19cyclictest0-21swapper/223:55:332
841199329,12cyclictest0-21swapper/119:45:341
841199328,13cyclictest0-21swapper/119:57:341
841199326,17cyclictest0-21swapper/119:19:531
841199325,14cyclictest0-21swapper/119:39:291
841099328,22cyclictest0-21swapper/020:00:190
841099325,25cyclictest0-21swapper/020:58:520
841099325,21cyclictest0-21swapper/019:20:270
841099325,20cyclictest0-21swapper/020:05:060
8410993216,14cyclictest0-21swapper/000:08:050
8410993215,14cyclictest0-21swapper/023:50:110
8410993214,16cyclictest0-21swapper/000:01:250
8410993214,16cyclictest0-21swapper/000:01:250
8410993212,18cyclictest0-21swapper/022:00:030
8410993212,18cyclictest0-21swapper/000:10:300
262392325,13sleep10-21swapper/121:04:251
132722325,13sleep00-21swapper/019:18:220
841399315,24cyclictest0-21swapper/320:10:153
841399315,24cyclictest0-21swapper/320:00:353
8413993116,13cyclictest0-21swapper/319:21:353
8413993116,13cyclictest0-21swapper/300:18:413
8413993115,13cyclictest0-21swapper/323:54:463
8413993115,13cyclictest0-21swapper/300:34:503
8413993115,13cyclictest0-21swapper/300:34:503
8413993114,14cyclictest0-21swapper/320:35:173
841299318,22cyclictest0-21swapper/220:14:282
841299318,21cyclictest0-21swapper/220:04:082
841299318,21cyclictest0-21swapper/219:58:582
841299316,15cyclictest0-21swapper/219:42:312
8412993119,11cyclictest0-21swapper/220:56:392
8412993112,12cyclictest0-21swapper/221:00:412
8412993110,18cyclictest0-21swapper/219:50:182
841199319,20cyclictest0-21swapper/122:19:341
841199318,21cyclictest0-21swapper/122:26:181
841199318,20cyclictest0-21swapper/121:28:031
841199318,16cyclictest0-21swapper/120:10:061
841199317,12cyclictest0-21swapper/120:15:321
841199316,15cyclictest0-21swapper/119:25:281
841199315,24cyclictest0-21swapper/121:05:221
841199315,24cyclictest0-21swapper/121:05:221
841199315,23cyclictest0-21swapper/122:50:001
841199314,14cyclictest0-21swapper/121:45:321
841099315,18cyclictest0-21swapper/019:35:220
8410993115,13cyclictest0-21swapper/021:35:140
8410993113,16cyclictest0-21swapper/021:45:130
8410993112,17cyclictest0-21swapper/022:55:570
8410993111,10cyclictest0-21swapper/022:50:320
195932315,10sleep00-21swapper/019:31:330
17482315,10sleep10-21swapper/120:05:231
173992315,13sleep30-21swapper/320:41:173
131102315,13sleep30-21swapper/319:16:293
108872315,13sleep30-21swapper/320:25:423
841399305,23cyclictest0-21swapper/319:55:543
841399305,23cyclictest0-21swapper/319:30:253
841399305,22cyclictest0-21swapper/319:45:173
8413993016,13cyclictest0-21swapper/320:20:053
8413993016,13cyclictest0-21swapper/320:16:353
8413993016,12cyclictest0-21swapper/321:45:253
8413993016,12cyclictest0-21swapper/321:10:143
8413993015,14cyclictest0-21swapper/319:12:053
8413993015,13cyclictest0-21swapper/321:58:063
8413993014,13cyclictest0-21swapper/321:18:093
8413993012,16cyclictest0-21swapper/323:47:263
8412993014,14cyclictest0-21swapper/219:30:462
8412993014,14cyclictest0-21swapper/219:10:152
841199308,11cyclictest0-21swapper/119:30:061
841199307,21cyclictest0-21swapper/123:16:351
841199306,16cyclictest0-21swapper/119:10:361
841199305,23cyclictest0-21swapper/123:24:561
841199305,23cyclictest0-21swapper/123:24:561
841199305,23cyclictest0-21swapper/122:30:351
841199305,22cyclictest0-21swapper/120:30:151
841199305,19cyclictest0-21swapper/120:36:511
841199305,17cyclictest0-21swapper/119:42:041
8411993015,13cyclictest0-21swapper/121:10:311
8411993014,14cyclictest0-21swapper/122:50:211
8411993014,13cyclictest0-21swapper/121:15:131
8411993013,15cyclictest0-21swapper/122:41:241
8411993013,15cyclictest0-21swapper/119:21:351
841099306,21cyclictest0-21swapper/000:30:250
841099306,21cyclictest0-21swapper/000:30:250
841099305,23cyclictest0-21swapper/020:35:280
8410993016,13cyclictest0-21swapper/021:04:220
8410993015,12cyclictest0-21swapper/021:20:160
109002305,10sleep10-21swapper/120:25:521
841399298,18cyclictest0-21swapper/321:30:213
841399295,22cyclictest0-21swapper/320:56:453
841399295,22cyclictest0-21swapper/320:45:153
841399295,22cyclictest0-21swapper/320:30:313
841399295,22cyclictest0-21swapper/319:35:473
841399295,22cyclictest0-21swapper/300:26:043
8413992916,12cyclictest0-21swapper/321:06:353
8413992916,12cyclictest0-21swapper/321:06:353
8413992916,11cyclictest0-21swapper/322:40:263
8413992915,12cyclictest0-21swapper/300:15:023
8413992914,13cyclictest0-21swapper/321:20:303
8413992914,12cyclictest0-21swapper/300:00:193
8413992914,12cyclictest0-21swapper/300:00:193
841299299,18cyclictest0-21swapper/223:30:012
841299299,18cyclictest0-21swapper/223:30:012
841299295,22cyclictest0-21swapper/221:06:282
841299295,22cyclictest0-21swapper/221:06:282
841299295,22cyclictest0-21swapper/220:30:182
841299295,22cyclictest0-21swapper/220:17:082
841199295,12cyclictest0-21swapper/119:54:041
8411992910,16cyclictest0-21swapper/123:07:201
8410992913,14cyclictest0-21swapper/021:30:160
8410992911,13cyclictest0-21swapper/020:40:050
8410992910,16cyclictest0-21swapper/023:05:480
841399287,18cyclictest0-21swapper/322:35:323
841399285,21cyclictest0-21swapper/322:00:033
841399285,21cyclictest0-21swapper/321:00:233
841399285,21cyclictest0-21swapper/320:52:263
8413992814,12cyclictest0-21swapper/323:40:163
8413992813,13cyclictest0-21swapper/323:00:233
8413992813,12cyclictest0-21swapper/321:50:223
8413992810,15cyclictest0-21swapper/321:25:173
8412992812,14cyclictest0-21swapper/220:50:122
841199286,19cyclictest0-21swapper/121:30:171
8411992812,14cyclictest0-21swapper/123:26:171
8411992812,14cyclictest0-21swapper/123:26:171
8411992810,15cyclictest0-21swapper/123:30:341
8413992714,11cyclictest0-21swapper/323:55:403
8413992712,13cyclictest0-21swapper/321:35:283
8413992712,13cyclictest0-21swapper/300:36:263
8413992712,13cyclictest0-21swapper/300:36:263
8413992712,13cyclictest0-21swapper/300:20:053
841199277,18cyclictest0-21swapper/100:10:241
841199276,19cyclictest0-21swapper/121:20:111
841199276,18cyclictest0-21swapper/100:29:311
8411992712,13cyclictest0-21swapper/123:40:281
8411992711,14cyclictest0-21swapper/123:36:371
841099276,18cyclictest0-21swapper/021:15:020
8410992713,12cyclictest0-21swapper/021:15:090
8413992611,12cyclictest0-21swapper/321:40:123
8412992620,4cyclictest28499-21stress22:27:092
841199266,17cyclictest0-21swapper/100:34:361
841199266,17cyclictest0-21swapper/100:34:361
841199265,19cyclictest0-21swapper/123:00:151
8411992611,13cyclictest0-21swapper/100:20:331
8411992610,14cyclictest0-21swapper/122:00:261
8413992511,12cyclictest0-21swapper/323:30:123
8413992511,12cyclictest0-21swapper/322:20:023
8412992518,5cyclictest6005-21modprobe23:17:002
841099256,16cyclictest0-21swapper/022:40:270
841099253,6cyclictest28499-21stress23:30:160
8410992511,12cyclictest0-21swapper/023:40:280
841199249,13cyclictest0-21swapper/123:50:261
841199247,15cyclictest0-21swapper/121:35:291
183452242,19sleep128497-21stress00:00:231
183452242,19sleep128497-21stress00:00:231
841399238,11cyclictest0-21swapper/322:50:173
841199236,15cyclictest0-21swapper/122:40:011
841199236,15cyclictest0-21swapper/100:40:011
841199235,17cyclictest0-21swapper/121:50:241
841099235,5cyclictest28505-21iperf00:36:130
841099235,5cyclictest28505-21iperf00:36:120
841099235,16cyclictest0-21swapper/023:40:010
3472233,3sleep328497-21stress22:57:513
210432233,18sleep328499-21stress22:14:373
210432233,18sleep328499-21stress22:14:373
201792233,18sleep328499-21stress00:08:583
841199227,13cyclictest0-21swapper/100:40:001
841099223,7cyclictest5570-21cron23:15:000
841099223,6cyclictest28499-21stress23:25:150
841099223,6cyclictest28499-21stress23:25:150
841399215,14cyclictest0-21swapper/323:40:013
8412992114,4cyclictest16074-21runrttasks21:59:192
841199215,4cyclictest752-21latency_hist23:00:021
841199213,7cyclictest28499-21stress22:07:341
841199213,5cyclictest16176-21/usr/sbin/munin22:00:011
841199212,8cyclictest28499-21stress00:16:001
841099218,10cyclictest0-21swapper/000:00:020
841399203,15cyclictest28497-21stress22:26:153
8412992014,4cyclictest21424-21taskset22:16:002
841199203,6cyclictest9716-21df_inode21:40:161
841199203,5cyclictest28504-21iperf00:07:061
8411991914,4cyclictest28497-21stress23:48:471
58922193,14sleep328497-21stress23:15:413
8413991813,4cyclictest28497-21stress22:49:353
841399175,10cyclictest28497-21stress22:05:293
172692173,13sleep128497-21stress23:57:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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