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2026-06-10 - 00:56
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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 792 highest latencies:
System rack0slot2.osadl.org (updated Tue Jun 09, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
72386225848,7sleep40-21swapper/407:04:304
9919922560,0sleep7991991-21rm09:17:177
72429799420,40cyclictest1102639-21latency_hist10:06:187
724288994139,2cyclictest1126899-21kworker/u16:3+events_unbound12:24:405
724288994038,2cyclictest1174994-21kworker/u16:1+events_unbound11:38:055
7236992403,31sleep70-21swapper/707:02:087
724297993934,4cyclictest1391493-21latency_hist12:06:177
724288993937,2cyclictest1174994-21kworker/u16:1+events_unbound11:49:005
724288993937,2cyclictest1040629-21kworker/u16:1+events_unbound09:52:375
724288993836,2cyclictest852947-21kworker/u16:2+events_unbound11:02:495
724288993836,2cyclictest852947-21kworker/u16:2+events_unbound10:57:185
724288993836,2cyclictest1259626-21kworker/u16:4+events_unbound11:15:505
724288993836,2cyclictest1174994-21kworker/u16:1+events_unbound11:57:325
724288993835,2cyclictest1063852-21kworker/u16:0+events_unbound10:01:215
724287993835,2cyclictest1126899-21kworker/u16:3+flush-8:011:16:444
724288993735,2cyclictest852947-21kworker/u16:2+events_unbound10:47:365
724288993735,2cyclictest852947-21kworker/u16:2+events_unbound10:25:085
724288993735,2cyclictest1174994-21kworker/u16:1+events_unbound11:43:085
724288993735,2cyclictest1063852-21kworker/u16:0+events_unbound10:00:135
724288993735,2cyclictest1040629-21kworker/u16:1+events_unbound09:38:215
724287993734,2cyclictest890129-21kworker/u16:4+events_unbound08:51:334
724288993634,2cyclictest890129-21kworker/u16:4+events_unbound09:27:055
724288993634,2cyclictest852947-21kworker/u16:2+events_unbound11:10:105
724288993634,2cyclictest852947-21kworker/u16:2+events_unbound09:12:375
724288993634,2cyclictest1126899-21kworker/u16:3+events_unbound11:17:445
72380723628,5sleep50-21swapper/507:03:435
724292993532,2cyclictest1063852-21kworker/u16:0+flush-8:009:56:186
724288993533,2cyclictest890129-21kworker/u16:4+events_unbound09:36:015
724288993533,2cyclictest890129-21kworker/u16:4+events_unbound09:36:015
724288993533,2cyclictest1414396-21kworker/u16:2+events_unbound12:19:085
724288993533,2cyclictest1414396-21kworker/u16:2+events_unbound12:15:565
724288993533,2cyclictest1174994-21kworker/u16:1+events_unbound11:53:455
724288993533,2cyclictest1126899-21kworker/u16:3+events_unbound12:09:085
724288993533,2cyclictest1126899-21kworker/u16:3+events_unbound12:05:255
724288993533,2cyclictest1126899-21kworker/u16:3+events_unbound10:28:135
724288993533,2cyclictest1063852-21kworker/u16:0+events_unbound10:17:095
724288993532,2cyclictest715609-21kworker/u16:0+events_unbound07:06:215
724287993532,2cyclictest852947-21kworker/u16:2+events_unbound09:36:404
724292993432,2cyclictest890129-21kworker/u16:4+flush-8:009:26:446
724288993432,2cyclictest890129-21kworker/u16:4+events_unbound09:22:495
724288993432,2cyclictest852947-21kworker/u16:2+events_unbound10:55:375
724288993432,2cyclictest833110-21kworker/u16:1+flush-8:008:11:405
724288993432,2cyclictest833110-21kworker/u16:1+flush-8:008:11:405
724288993432,2cyclictest1414396-21kworker/u16:2+events_unbound12:33:085
724288993432,2cyclictest1414396-21kworker/u16:2+events_unbound12:30:415
724288993432,2cyclictest1063852-21kworker/u16:0+events_unbound09:47:305
724288993331,2cyclictest852947-21kworker/u16:2+events_unbound10:07:485
724288993331,2cyclictest852947-21kworker/u16:2+events_unbound09:07:015
724288993331,2cyclictest1174994-21kworker/u16:1+events_unbound11:23:065
724288993331,2cyclictest1162716-21kworker/u16:0+events_unbound10:38:005
724288993331,2cyclictest1063852-21kworker/u16:0+events_unbound10:12:205
724297993231,0cyclictest0-21swapper/711:01:457
724288993230,2cyclictest890129-21kworker/u16:4+events_unbound09:42:165
724288993230,2cyclictest890129-21kworker/u16:4+events_unbound09:18:535
724288993230,2cyclictest1259626-21kworker/u16:4+events_unbound11:29:535
724288993230,2cyclictest1162716-21kworker/u16:0+events_unbound10:42:295
724288993230,2cyclictest1126899-21kworker/u16:3+events_unbound11:32:585
724288993230,2cyclictest1126899-21kworker/u16:3+events_unbound11:32:585
724288993229,2cyclictest852947-21kworker/u16:2+flush-8:008:41:295
724297993128,2cyclictest124-21kswapd009:57:277
724288993129,2cyclictest1162716-21kworker/u16:0+events_unbound10:32:455
724288993028,2cyclictest871882-21kworker/u16:3+events_unbound08:26:055
724287992927,2cyclictest1063852-21kworker/u16:0+events_unbound09:56:324
724287992926,2cyclictest643609-21kworker/u16:2+events_unbound07:11:224
724297992827,0cyclictest0-21swapper/711:31:407
724297992827,0cyclictest0-21swapper/711:31:407
724287992825,2cyclictest1306982-21kworker/u16:0+events_unbound11:46:414
72429799270,26cyclictest635-21systemd-journal07:16:137
724292992725,2cyclictest715609-21kworker/u16:0+events_unbound07:06:346
724292992725,2cyclictest1174994-21kworker/u16:1+events_unbound11:51:366
724292992725,1cyclictest1088419-21packagekitd09:57:226
724288992725,2cyclictest901698-21kworker/u16:1+events_unbound08:52:285
724288992724,2cyclictest715609-21kworker/u16:0+flush-8:007:31:285
71486122717,7sleep60-21swapper/607:01:276
724288992624,2cyclictest704957-21kworker/u16:4+events_unbound07:27:295
724287992624,2cyclictest1414396-21kworker/u16:2+events_unbound12:31:324
724287992624,2cyclictest1126899-21kworker/u16:3+flush-8:012:01:324
724287992623,2cyclictest1162716-21kworker/u16:0+events_unbound10:56:304
72429799250,23cyclictest1367416-21latency_hist11:56:187
724288992523,2cyclictest890129-21kworker/u16:4+events_unbound08:32:495
724288992522,2cyclictest833110-21kworker/u16:1+flush-8:008:16:335
724287992523,2cyclictest852947-21kworker/u16:2+events_unbound09:41:434
724287992523,2cyclictest1040629-21kworker/u16:1+flush-8:009:51:184
724292992422,2cyclictest890129-21kworker/u16:4+events_unbound08:46:326
724292992421,2cyclictest1126899-21kworker/u16:3+flush-8:012:21:356
724288992422,2cyclictest805027-21kworker/u16:3+events_unbound07:56:135
724288992422,2cyclictest643609-21kworker/u16:2+events_unbound07:48:285
724287992422,2cyclictest890129-21kworker/u16:4+flush-8:009:31:474
724287992422,2cyclictest890129-21kworker/u16:4+flush-8:009:31:474
724297992322,0cyclictest0-21swapper/708:06:447
9585022220,1chrt958500-21ssh09:06:277
724297992221,0cyclictest0-21swapper/709:41:397
724292992220,2cyclictest1306982-21kworker/u16:0+flush-8:011:36:186
724292992220,2cyclictest1306982-21kworker/u16:0+flush-8:011:36:186
724288992220,2cyclictest890129-21kworker/u16:4+events_unbound09:04:255
724288992220,2cyclictest890129-21kworker/u16:4+events_unbound08:47:175
724288992220,2cyclictest852947-21kworker/u16:2+events_unbound08:38:165
724287992220,2cyclictest901698-21kworker/u16:1+flush-8:009:06:344
724287992219,2cyclictest890129-21kworker/u16:4+flush-8:008:41:454
724292992119,2cyclictest715609-21kworker/u16:0+flush-8:007:26:346
724292992118,2cyclictest795452-21kworker/u16:1+flush-8:007:41:286
724288992118,2cyclictest715609-21kworker/u16:0+events_unbound08:26:225
724287992119,2cyclictest890129-21kworker/u16:4+flush-8:009:22:204
724297992015,4cyclictest1223057-21latency_hist10:56:187
724292992018,2cyclictest715609-21kworker/u16:0+events_unbound08:06:426
724288992018,2cyclictest715609-21kworker/u16:0+events_unbound07:16:405
724287992018,2cyclictest852947-21kworker/u16:2+events_unbound10:06:404
724287992018,2cyclictest1063852-21kworker/u16:0+flush-8:010:11:334
724287992018,2cyclictest1040629-21kworker/u16:1+flush-8:010:26:444
724287992017,2cyclictest1414396-21kworker/u16:2+flush-8:012:16:364
724297991918,0cyclictest0-21swapper/712:06:447
724288991916,2cyclictest715609-21kworker/u16:0+events_unbound07:56:285
724287991916,2cyclictest643609-21kworker/u16:2+flush-8:007:16:444
724287991916,2cyclictest1126899-21kworker/u16:3+flush-8:011:11:134
724297991817,0cyclictest0-21swapper/710:21:297
724297991815,1cyclictest756846-21latency_hist07:21:187
724297991813,4cyclictest1283221-21latency_hist11:21:187
724292991816,2cyclictest1126899-21kworker/u16:3+events_unbound11:46:336
724288991816,2cyclictest852947-21kworker/u16:2+events_unbound08:56:425
724288991816,2cyclictest852947-21kworker/u16:2+events_unbound08:56:425
724288991816,2cyclictest715609-21kworker/u16:0+events_unbound08:07:505
724288991816,2cyclictest715609-21kworker/u16:0+events_unbound07:37:135
724287991816,2cyclictest890129-21kworker/u16:4+flush-8:009:01:414
724287991816,2cyclictest1162716-21kworker/u16:0+events_unbound10:31:464
724287991815,2cyclictest715609-21kworker/u16:0+events_unbound07:56:384
724287991815,2cyclictest1259626-21kworker/u16:4+flush-8:011:26:134
724297991712,4cyclictest1199024-21latency_hist10:46:187
724287991715,2cyclictest1040629-21kworker/u16:1+events_unbound10:21:394
724287991714,3cyclictest1306982-21kworker/u16:0+events_unbound11:51:444
724297991615,0cyclictest0-21swapper/708:01:437
724297991614,1cyclictest0-21swapper/712:16:357
72429799160,14cyclictest933773-21grep08:51:377
724292991614,2cyclictest1174994-21kworker/u16:1+events_unbound11:11:346
724292991614,2cyclictest1162716-21kworker/u16:0+flush-8:010:31:436
724288991614,2cyclictest643609-21kworker/u16:2+events_unbound07:15:495
72428799160,1cyclictest0-21swapper/408:56:404
72428799160,1cyclictest0-21swapper/408:56:404
72429799159,5cyclictest910099-21turbostat08:41:187
724297991513,1cyclictest958039-21diskmemload12:29:327
724297991513,1cyclictest0-21swapper/707:46:427
724297991511,2cyclictest0-21swapper/709:01:187
724297991511,2cyclictest0-21swapper/709:01:187
72429799150,14cyclictest0-21swapper/707:26:427
72429799150,13cyclictest0-21swapper/710:56:427
724292991513,2cyclictest715609-21kworker/u16:0+events_unbound08:21:336
72429299150,1cyclictest1249166-21kthreadcore11:06:346
724287991513,2cyclictest852947-21kworker/u16:2+flush-8:011:01:434
724287991513,2cyclictest852947-21kworker/u16:2+events_unbound08:46:444
724287991513,2cyclictest704957-21kworker/u16:4+flush-8:007:36:474
724287991513,1cyclictest0-21swapper/408:36:324
724287991512,2cyclictest1174994-21kworker/u16:1+flush-8:012:06:394
724287991511,3cyclictest852947-21kworker/u16:2+flush-8:010:56:134
724297991413,0cyclictest0-21swapper/709:26:407
724297991410,3cyclictest1234-21snmpd11:48:037
72429799140,13cyclictest0-21swapper/707:41:427
72429299149,4cyclictest824993-21cat07:56:336
72429299149,4cyclictest1116026-21cat10:11:326
724292991413,1cyclictest0-21swapper/612:17:026
724292991413,1cyclictest0-21swapper/612:08:416
724292991413,1cyclictest0-21swapper/611:39:506
724292991413,1cyclictest0-21swapper/610:45:266
724292991413,1cyclictest0-21swapper/610:05:526
724292991413,1cyclictest0-21swapper/609:36:426
724292991411,2cyclictest805027-21kworker/u16:3+flush-8:007:51:376
72429299140,14cyclictest0-21swapper/612:00:016
72429299140,14cyclictest0-21swapper/609:43:386
72429299140,14cyclictest0-21swapper/609:17:286
724288991412,2cyclictest715609-21kworker/u16:0+events_unbound08:03:345
724287991412,2cyclictest715609-21kworker/u16:0+flush-8:007:41:344
724287991412,2cyclictest1126899-21kworker/u16:3+flush-8:012:26:394
724287991411,3cyclictest1040629-21kworker/u16:1+events_unbound10:01:354
72429799139,3cyclictest1234-21snmpd08:49:197
72429799139,3cyclictest1234-21snmpd08:33:197
724297991312,0cyclictest0-21swapper/708:21:427
724297991311,1cyclictest0-21swapper/709:21:467
724297991310,2cyclictest827-21dbus-daemon07:11:187
72429799130,1cyclictest0-21swapper/708:26:437
724292991312,1cyclictest0-21swapper/608:56:306
724292991312,1cyclictest0-21swapper/608:56:306
724292991311,2cyclictest890129-21kworker/u16:4+flush-8:008:41:496
72429299130,13cyclictest0-21swapper/611:29:166
72429299130,13cyclictest0-21swapper/609:23:466
72429299130,13cyclictest0-21swapper/607:21:166
72429299130,12cyclictest1411982-21kthreadcore12:11:396
72428899130,13cyclictest0-21swapper/507:41:435
72428799139,3cyclictest1306982-21kworker/u16:0+events_unbound12:21:424
724287991312,1cyclictest0-21swapper/411:43:124
724287991311,2cyclictest833110-21kworker/u16:1+flush-8:008:12:014
724287991311,2cyclictest833110-21kworker/u16:1+flush-8:008:12:014
724287991310,2cyclictest982133-21kworker/u16:0+events_unbound09:26:324
72428799130,1cyclictest0-21swapper/412:11:424
72429799129,2cyclictest1234-21snmpd11:27:397
72429799129,2cyclictest1234-21snmpd11:07:567
72429799129,2cyclictest1234-21snmpd07:55:217
72429799129,2cyclictest0-21swapper/710:06:317
72429799129,2cyclictest0-21swapper/708:16:347
72429799128,3cyclictest1234-21snmpd11:57:287
72429799128,3cyclictest1234-21snmpd08:43:527
72429799128,3cyclictest1234-21snmpd08:00:217
72429799127,4cyclictest6382-21gvfs-afc-volume09:31:237
72429799127,4cyclictest6382-21gvfs-afc-volume09:31:237
72429799127,4cyclictest6382-21gvfs-afc-volume07:21:437
72429799127,4cyclictest1174953-21latency_hist10:36:187
724297991212,0cyclictest0-21swapper/711:43:307
724297991211,0cyclictest0-21swapper/710:29:057
72429799120,11cyclictest1234-21snmpd09:56:067
724292991211,1cyclictest0-21swapper/612:32:586
724292991211,1cyclictest0-21swapper/611:17:456
724292991211,1cyclictest0-21swapper/610:56:096
724292991211,1cyclictest0-21swapper/607:49:486
724292991211,1cyclictest0-21swapper/607:34:506
72429299120,12cyclictest0-21swapper/608:17:526
724288991210,2cyclictest715609-21kworker/u16:0+events_unbound07:23:295
72428799128,3cyclictest890129-21kworker/u16:4+flush-8:008:31:454
72428799128,3cyclictest852947-21kworker/u16:2+flush-8:009:16:354
72428799128,3cyclictest844130-21cat08:06:314
724287991210,2cyclictest1040629-21kworker/u16:1+events_unbound09:51:464
72428799120,1cyclictest0-21swapper/410:19:014
72428799120,12cyclictest0-21swapper/410:50:334
72429799118,3cyclictest6514-21gmain10:39:087
72429799118,2cyclictest1234-21snmpd11:11:207
72429799118,2cyclictest0-21swapper/710:11:347
72429799117,3cyclictest1234-21snmpd09:37:187
72429799117,3cyclictest0-21swapper/712:31:327
72429799110,9cyclictest1234-21snmpd10:46:567
72429799110,10cyclictest1234-21snmpd11:21:267
72429299117,4cyclictest1441027-21irqcore12:26:326
724292991110,1cyclictest0-21swapper/610:25:066
724292991110,1cyclictest0-21swapper/609:11:096
724292991110,1cyclictest0-21swapper/608:26:516
72429299110,4cyclictest1338284-21kthreadcore11:41:386
72429299110,11cyclictest0-21swapper/608:35:226
724287991110,1cyclictest1126899-21kworker/u16:3+events_unbound11:12:214
724287991110,1cyclictest0-21swapper/411:58:114
724287991110,1cyclictest0-21swapper/408:27:334
72428799110,11cyclictest0-21swapper/408:16:314
72429799108,1cyclictest0-21swapper/711:40:467
72429799107,2cyclictest6279-21rtkit-daemon12:14:117
72429799107,2cyclictest1234-21snmpd10:19:407
72429799107,2cyclictest1234-21snmpd07:40:277
72429799106,3cyclictest1234-21snmpd12:25:347
72429799106,3cyclictest1234-21snmpd09:03:177
72429799105,4cyclictest859106-21grep08:11:407
72429799105,4cyclictest859106-21grep08:11:407
72429299108,2cyclictest890129-21kworker/u16:4+events_unbound09:46:406
72429299108,2cyclictest86-21ksoftirqd/612:04:226
72429299106,3cyclictest1288369-21kthreadcore11:21:376
72429299104,5cyclictest0-21swapper/609:11:386
72429299101,8cyclictest1180896-21kthreadcore10:36:386
72429299100,9cyclictest1159890-21ntp_kernel_pll_10:26:416
72429299100,9cyclictest1103425-21cstates10:06:296
72429299100,3cyclictest904866-21kthreadcore08:36:376
72429299100,3cyclictest789679-21grep07:36:376
72428799107,2cyclictest757806-21fschecks_time07:21:314
72428799107,2cyclictest1126899-21kworker/u16:3+flush-8:010:41:254
72428799105,4cyclictest732961-21smart_sda07:06:454
7242979997,1cyclictest0-21swapper/709:49:207
7242979996,2cyclictest1234-21snmpd09:13:297
7242979993,5cyclictest6382-21gvfs-afc-volume07:31:397
7242929998,1cyclictest949496-21fschecks_time09:01:316
7242929995,3cyclictest1133599-21cut10:16:396
7242929991,7cyclictest1224402-21ps10:56:346
7242929990,8cyclictest1240596-21tr11:01:386
7242929990,8cyclictest1200206-21tune2fs10:46:336
7242929990,8cyclictest1020482-21kthreadcore09:31:356
7242929990,8cyclictest1020482-21kthreadcore09:31:356
7242929990,4cyclictest833783-21/usr/sbin/munin08:01:336
7242929990,3cyclictest931224-21kthreadcore08:51:356
7242879990,8cyclictest1180647-21tr10:36:384
7242879990,8cyclictest0-21swapper/411:36:364
7242929986,1cyclictest0-21swapper/607:11:206
7242929984,3cyclictest856176-21cut08:11:386
7242929984,3cyclictest856176-21cut08:11:386
7242929980,7cyclictest759524-21kthreadcore07:21:356
7242879984,3cyclictest833110-21kworker/u16:1+flush-8:008:01:364
7242879983,4cyclictest813088-21cat07:46:404
7242879974,2cyclictest816123-21kthreadcore07:51:364
7242879974,2cyclictest770324-21kthreadcore07:26:364
7242879974,2cyclictest1295961-21tr11:26:304
7242879973,3cyclictest872847-21if_err_p4p108:21:324
7242879972,4cyclictest970586-21awk09:11:304
7242879972,4cyclictest776896-21tune2fs07:31:314
7242879972,4cyclictest1307956-21wc11:31:294
7242879972,4cyclictest1307956-21wc11:31:294
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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