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2026-07-24 - 18:38
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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 highest latencies:
System rack0slot2.osadl.org (updated Fri Jul 24, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40713525419,30sleep70-21swapper/707:08:407
40714225242,7sleep50-21swapper/507:08:465
407486994745,2cyclictest605707-21kworker/u16:4+flush-8:009:23:404
40749999460,44cyclictest440462-21systemd-run07:24:187
40705624131,7sleep40-21swapper/407:07:324
407492994038,2cyclictest125-21kswapd010:54:045
407486993936,2cyclictest633979-21kworker/u16:0+flush-8:010:54:184
40704923929,7sleep60-21swapper/607:07:266
407499993833,4cyclictest963993-21latency_hist11:19:197
407499993832,5cyclictest459854-21latency_hist07:34:197
407494993735,2cyclictest890552-21kworker/u16:4+events_unbound11:14:166
407499993635,0cyclictest0-21swapper/712:16:447
407499993634,1cyclictest644485-21diskmemload11:42:367
407492993633,3cyclictest1049970-21kworker/u16:4+flush-8:011:59:195
407494993533,2cyclictest605707-21kworker/u16:4+events_unbound09:41:066
407486993533,2cyclictest952105-21kworker/u16:0+flush-8:011:14:404
407486993532,2cyclictest656892-21kworker/u16:1+flush-8:011:04:184
407499993432,1cyclictest644485-21diskmemload11:47:137
407494993432,2cyclictest743179-21kworker/u16:3+events_unbound09:58:496
407494993331,2cyclictest915354-21kworker/u16:2+events_unbound11:00:566
407494993331,2cyclictest804603-21kworker/u16:4+events_unbound10:24:456
407494993230,2cyclictest973742-21kworker/u16:3+events_unbound12:09:576
407494993230,2cyclictest656892-21kworker/u16:1+flush-8:009:19:316
407494993230,2cyclictest656892-21kworker/u16:1+events_unbound10:55:326
407494993230,2cyclictest633979-21kworker/u16:0+flush-8:010:31:016
407499993129,1cyclictest586132-21latency_hist08:39:197
407494993129,2cyclictest973742-21kworker/u16:3+flush-8:012:03:216
407494993129,2cyclictest633979-21kworker/u16:0+events_unbound10:35:016
407486993129,2cyclictest131348-21kworker/u16:0+flush-8:007:54:194
407486993129,2cyclictest1049970-21kworker/u16:4+flush-8:012:00:204
407486993127,3cyclictest743179-21kworker/u16:3+events_unbound09:54:474
407499993029,0cyclictest0-21swapper/711:55:287
407499993029,0cyclictest0-21swapper/711:23:297
407499993028,1cyclictest654762-21ssh09:10:537
407499993028,1cyclictest0-21swapper/710:39:217
407499993024,5cyclictest648-21systemd-journal08:09:187
407494993028,2cyclictest865774-21kworker/u16:3+events_unbound10:43:546
407494993027,2cyclictest1022182-21kworker/u16:2+events_unbound11:54:236
407486993028,2cyclictest1049970-21kworker/u16:4+flush-8:012:09:404
407499992927,1cyclictest0-21swapper/712:03:137
407499992927,1cyclictest0-21swapper/711:31:127
407499992927,1cyclictest0-21swapper/711:31:127
407499992926,2cyclictest1086323-21ssh12:08:537
407494992927,2cyclictest567059-21kworker/u16:1+events_unbound08:38:486
407494992927,2cyclictest1049970-21kworker/u16:4+events_unbound12:29:056
407494992927,2cyclictest1049970-21kworker/u16:4+events_unbound12:06:326
8507602280,1sleep50-21swapper/510:29:495
407499992827,0cyclictest0-21swapper/709:49:017
407499992826,1cyclictest913028-21ssh10:55:537
407499992824,2cyclictest518116-21munin-run08:04:187
407494992826,2cyclictest915354-21kworker/u16:2+events_unbound11:26:036
407494992826,2cyclictest656892-21kworker/u16:1+flush-8:009:44:506
407494992826,2cyclictest656892-21kworker/u16:1+events_unbound11:48:476
407494992826,2cyclictest656892-21kworker/u16:1+events_unbound11:33:236
407494992826,2cyclictest656892-21kworker/u16:1+events_unbound11:33:236
407494992826,2cyclictest656892-21kworker/u16:1+events_unbound09:37:046
407494992826,2cyclictest469942-21kworker/u16:2+events_unbound07:44:226
407494992826,2cyclictest1022182-21kworker/u16:2+events_unbound11:52:146
407494992823,5cyclictest828932-21kworker/u16:2+events_unbound10:45:326
407492992826,2cyclictest986095-21kworker/u16:0+flush-8:011:29:565
407492992826,2cyclictest986095-21kworker/u16:0+flush-8:011:29:565
407499992726,0cyclictest0-21swapper/712:38:297
407499992726,0cyclictest0-21swapper/710:35:367
407499992724,2cyclictest680703-21ssh09:23:087
407499992722,4cyclictest648-21systemd-journal09:18:167
40749999270,25cyclictest815523-21ssh10:17:477
407494992725,2cyclictest973742-21kworker/u16:3+events_unbound11:35:476
407494992725,2cyclictest743178-21kworker/u16:2+events_unbound10:07:316
407494992725,2cyclictest743178-21kworker/u16:2+events_unbound10:00:516
407494992725,2cyclictest656892-21kworker/u16:1+events_unbound09:15:586
407494992725,2cyclictest633979-21kworker/u16:0+events_unbound09:25:546
407494992725,2cyclictest497702-21kworker/u16:3+events_unbound08:07:026
407494992725,2cyclictest387926-21kworker/u16:2+events_unbound07:10:496
407494992725,2cyclictest1084093-21kworker/u16:0+events_unbound12:32:266
407486992725,2cyclictest497702-21kworker/u16:3+flush-8:008:29:444
407486992724,2cyclictest890552-21kworker/u16:4+events_unbound11:09:364
407486992724,2cyclictest656892-21kworker/u16:1+flush-8:010:54:324
407499992625,0cyclictest0-21swapper/709:53:337
407499992625,0cyclictest0-21swapper/709:43:507
407499992624,1cyclictest1134822-21sh12:28:047
407499992619,6cyclictest648-21systemd-journal09:34:187
407494992624,2cyclictest890552-21kworker/u16:4+events_unbound11:09:076
407494992624,2cyclictest743178-21kworker/u16:2+events_unbound09:54:026
407494992624,2cyclictest497702-21kworker/u16:3+events_unbound09:07:416
407494992624,2cyclictest469942-21kworker/u16:2+events_unbound08:13:256
407494992624,2cyclictest469942-21kworker/u16:2+events_unbound08:13:256
407494992624,2cyclictest460162-21kworker/u16:1+events_unbound07:39:196
407492992623,2cyclictest973742-21kworker/u16:3+flush-8:011:24:365
407499992524,0cyclictest0-21swapper/710:27:297
407499992524,0cyclictest0-21swapper/710:12:047
407499992524,0cyclictest0-21swapper/710:12:047
407499992523,1cyclictest691967-21ssh09:26:177
407499992523,1cyclictest644485-21diskmemload12:33:567
407499992522,2cyclictest595820-21munin-run08:44:187
407494992523,2cyclictest915354-21kworker/u16:2+events_unbound11:22:466
407494992523,2cyclictest656892-21kworker/u16:1+flush-8:009:33:516
407494992523,2cyclictest656892-21kworker/u16:1+events_unbound10:53:316
407494992523,2cyclictest497702-21kworker/u16:3+flush-8:009:09:576
407494992523,2cyclictest497702-21kworker/u16:3+events_unbound08:59:216
407494992523,2cyclictest1084093-21kworker/u16:0+flush-8:012:35:036
407494992523,2cyclictest1084093-21kworker/u16:0+events_unbound12:16:206
407494992523,2cyclictest1022182-21kworker/u16:2+events_unbound11:41:206
407492992523,2cyclictest567059-21kworker/u16:1+events_unbound08:29:335
407499992423,0cyclictest0-21swapper/711:00:217
407499992422,1cyclictest644485-21diskmemload10:02:487
407494992422,2cyclictest743178-21kworker/u16:2+events_unbound10:11:066
407494992422,2cyclictest743178-21kworker/u16:2+events_unbound10:11:066
407494992422,2cyclictest656892-21kworker/u16:1+flush-8:010:22:396
407494992422,2cyclictest656892-21kworker/u16:1+events_unbound11:16:546
407494992422,2cyclictest633979-21kworker/u16:0+events_unbound10:16:236
407494992422,2cyclictest567059-21kworker/u16:1+events_unbound08:53:086
407494992422,2cyclictest567059-21kworker/u16:1+events_unbound08:46:506
407494992422,2cyclictest469942-21kworker/u16:2+events_unbound07:52:426
407494992422,2cyclictest131348-21kworker/u16:0+events_unbound07:25:096
407494992421,2cyclictest469942-21kworker/u16:2+flush-8:007:59:286
407492992422,2cyclictest131348-21kworker/u16:0+events_unbound07:29:335
407486992420,3cyclictest577592-21kworker/u16:0+flush-8:008:39:374
407499992322,0cyclictest0-21swapper/711:53:217
407499992322,0cyclictest0-21swapper/709:56:057
407499992322,0cyclictest0-21swapper/709:38:017
407499992321,1cyclictest879223-21ssh10:44:337
407499992321,1cyclictest0-21swapper/710:04:247
407494992321,2cyclictest973742-21kworker/u16:3+events_unbound12:20:546
407486992321,2cyclictest656892-21kworker/u16:1+flush-8:010:24:324
407486992319,3cyclictest668316-21packagekitd09:18:104
407499992221,0cyclictest0-21swapper/712:21:127
407499992221,0cyclictest0-21swapper/712:11:047
407499992221,0cyclictest0-21swapper/710:50:217
407499992220,1cyclictest927701-21ssh11:04:287
407494992220,2cyclictest567059-21kworker/u16:1+flush-8:008:31:136
407494992220,2cyclictest567059-21kworker/u16:1+events_unbound08:57:496
407494992220,2cyclictest567059-21kworker/u16:1+events_unbound08:57:496
407494992220,2cyclictest469942-21kworker/u16:2+events_unbound07:58:216
407492992220,2cyclictest743178-21kworker/u16:2+flush-8:009:59:365
407492992219,2cyclictest656892-21kworker/u16:1+flush-8:011:19:345
407492992219,2cyclictest387926-21kworker/u16:2+flush-8:007:24:375
407486992220,2cyclictest743178-21kworker/u16:2+events_unbound09:59:424
407486992220,2cyclictest633979-21kworker/u16:0+flush-8:010:14:454
407486992220,2cyclictest577592-21kworker/u16:0+flush-8:008:34:484
407499992120,0cyclictest0-21swapper/710:33:337
407499992120,0cyclictest0-21swapper/710:20:297
407494992119,2cyclictest469942-21kworker/u16:2+events_unbound07:42:486
407492992119,2cyclictest633979-21kworker/u16:0+flush-8:009:18:155
407486992119,2cyclictest828932-21kworker/u16:2+flush-8:010:34:284
407486992119,2cyclictest633979-21kworker/u16:0+events_unbound10:39:484
407486992119,2cyclictest518440-21kworker/u16:0+events_unbound08:09:354
407486992119,2cyclictest518440-21kworker/u16:0+events_unbound08:09:354
407499992019,0cyclictest0-21swapper/711:35:527
407499992016,2cyclictest609177-21grep08:49:377
407494992018,2cyclictest567059-21kworker/u16:1+events_unbound08:41:576
407494992018,2cyclictest536550-21kworker/u16:4+flush-8:008:19:196
407494992018,2cyclictest536550-21kworker/u16:4+events_unbound08:28:466
407494992018,2cyclictest387926-21kworker/u16:2+events_unbound07:17:016
407486992017,2cyclictest890552-21kworker/u16:4+events_unbound11:04:454
407499991917,1cyclictest949856-21ssh11:10:527
407494991917,2cyclictest536550-21kworker/u16:4+events_unbound08:21:226
407494991917,2cyclictest430721-21kworker/u16:4+events_unbound07:30:456
407492991916,2cyclictest656892-21kworker/u16:1+flush-8:009:24:355
407492991915,3cyclictest131348-21kworker/u16:0+flush-8:007:09:365
407486991917,2cyclictest986095-21kworker/u16:0+flush-8:011:29:424
407486991917,2cyclictest986095-21kworker/u16:0+flush-8:011:29:424
407486991917,2cyclictest1084093-21kworker/u16:0+flush-8:012:29:424
407499991816,1cyclictest0-21swapper/708:54:447
407499991816,1cyclictest0-21swapper/708:54:447
407494991816,2cyclictest131348-21kworker/u16:0+flush-8:007:19:346
407492991816,2cyclictest633979-21kworker/u16:0+flush-8:010:25:255
407486991816,2cyclictest743179-21kworker/u16:3+events_unbound09:49:464
407486991816,2cyclictest656892-21kworker/u16:1+flush-8:010:04:504
407486991816,2cyclictest633979-21kworker/u16:0+events_unbound09:39:484
407486991816,2cyclictest605707-21kworker/u16:4+events_unbound09:34:324
407499991716,0cyclictest0-21swapper/708:29:317
407499991716,0cyclictest0-21swapper/708:09:337
407499991716,0cyclictest0-21swapper/708:09:337
407492991714,3cyclictest605707-21kworker/u16:4+flush-8:009:29:495
407486991715,2cyclictest656892-21kworker/u16:1+flush-8:010:44:304
407486991715,2cyclictest656892-21kworker/u16:1+events_unbound10:29:464
407499991615,0cyclictest0-21swapper/708:59:297
407499991615,0cyclictest0-21swapper/707:44:297
407499991610,5cyclictest417027-21latency_hist07:14:197
40749999160,15cyclictest5831-21gnome-shell11:25:277
40749999160,14cyclictest0-21swapper/707:39:447
407492991612,3cyclictest626224-21cat08:59:335
407486991614,2cyclictest460162-21kworker/u16:1+events_unbound07:34:464
407499991514,0cyclictest0-21swapper/708:47:287
407499991513,1cyclictest0-21swapper/707:49:457
407499991510,4cyclictest644484-21latency_hist09:09:197
407486991513,2cyclictest656892-21kworker/u16:1+events_unbound11:19:424
407486991513,2cyclictest633979-21kworker/u16:0+events_unbound10:09:464
407486991513,2cyclictest633979-21kworker/u16:0+events_unbound10:09:464
407486991513,2cyclictest497702-21kworker/u16:3+flush-8:008:44:464
407486991513,2cyclictest1022182-21kworker/u16:2+events_unbound11:54:214
40748699150,14cyclictest0-21swapper/411:34:284
407499991413,0cyclictest0-21swapper/707:15:297
407492991413,1cyclictest0-21swapper/512:20:025
407492991413,1cyclictest0-21swapper/509:51:035
407492991411,2cyclictest562682-21kthreadcore08:24:395
40749299140,1cyclictest0-21swapper/512:00:205
40749299140,1cyclictest0-21swapper/510:38:025
40749299140,14cyclictest0-21swapper/509:11:385
407486991413,1cyclictest0-21swapper/412:07:064
407486991412,2cyclictest131348-21kworker/u16:0+flush-8:007:29:364
40748699140,14cyclictest0-21swapper/407:24:344
40749999139,3cyclictest1302-21snmpd08:22:097
40749999139,3cyclictest1302-21snmpd07:57:007
40749999130,1cyclictest0-21swapper/707:24:457
40749999130,11cyclictest566327-21awk08:24:497
407492991312,1cyclictest0-21swapper/511:14:275
407492991312,1cyclictest0-21swapper/510:42:465
407492991312,1cyclictest0-21swapper/510:18:295
407492991312,1cyclictest0-21swapper/509:58:565
407492991312,1cyclictest0-21swapper/509:46:575
407492991312,1cyclictest0-21swapper/507:35:465
407492991310,2cyclictest0-21swapper/510:09:335
407492991310,2cyclictest0-21swapper/510:09:335
40749299130,13cyclictest0-21swapper/512:31:145
40749299130,13cyclictest0-21swapper/512:26:595
40749299130,13cyclictest0-21swapper/512:18:285
40749299130,13cyclictest0-21swapper/512:11:325
40749299130,13cyclictest0-21swapper/510:56:105
40749299130,0cyclictest0-21swapper/510:20:035
40749299130,0cyclictest0-21swapper/509:34:395
407486991312,1cyclictest0-21swapper/412:23:024
407486991312,1cyclictest0-21swapper/407:20:474
407486991311,2cyclictest656892-21kworker/u16:1+flush-8:009:44:494
407486991311,2cyclictest536550-21kworker/u16:4+flush-8:008:24:484
407486991311,2cyclictest460162-21kworker/u16:1+events_unbound07:54:364
40748699130,0cyclictest0-21swapper/411:28:004
407492991211,1cyclictest0-21swapper/512:34:235
407492991211,1cyclictest0-21swapper/509:42:515
407492991211,1cyclictest0-21swapper/507:16:135
407492991210,2cyclictest469942-21kworker/u16:2+flush-8:007:49:345
40749299120,1cyclictest0-21swapper/508:41:125
40749299120,1cyclictest0-21swapper/508:06:035
40749299120,11cyclictest0-21swapper/508:44:215
407486991211,1cyclictest0-21swapper/412:35:104
407486991211,1cyclictest0-21swapper/412:24:364
407486991211,1cyclictest0-21swapper/411:46:174
407486991211,1cyclictest0-21swapper/411:40:564
407486991211,1cyclictest0-21swapper/409:33:424
407486991211,1cyclictest0-21swapper/409:06:354
407486991211,1cyclictest0-21swapper/408:58:134
407486991211,1cyclictest0-21swapper/408:58:134
407486991210,2cyclictest804603-21kworker/u16:4+flush-8:010:19:434
407486991210,2cyclictest656892-21kworker/u16:1+events_unbound09:24:474
40748699120,1cyclictest0-21swapper/407:45:424
40749999118,2cyclictest1302-21snmpd07:35:507
40749999115,5cyclictest5834-21gmain08:18:167
40749299119,2cyclictest131348-21kworker/u16:0+events_unbound07:39:335
407492991110,1cyclictest0-21swapper/511:42:035
407492991110,1cyclictest0-21swapper/511:11:465
407492991110,1cyclictest0-21swapper/511:09:065
407492991110,1cyclictest0-21swapper/511:02:385
407492991110,1cyclictest0-21swapper/510:45:555
40749299110,11cyclictest0-21swapper/508:20:235
40749299110,11cyclictest0-21swapper/507:21:075
407486991110,1cyclictest0-21swapper/411:51:394
407486991110,1cyclictest0-21swapper/408:16:364
407486991110,1cyclictest0-21swapper/407:39:424
40748699110,11cyclictest0-21swapper/407:18:064
40749299109,1cyclictest0-21swapper/511:51:115
40749299109,1cyclictest0-21swapper/511:44:435
40749299109,1cyclictest0-21swapper/508:16:085
40748699109,1cyclictest0-21swapper/407:09:264
40748699108,2cyclictest497702-21kworker/u16:3+flush-8:008:49:494
40748699108,1cyclictest547619-21/usr/sbin/munin08:19:454
40748699107,2cyclictest1099795-21df_inode12:14:314
4074929998,1cyclictest0-21swapper/508:03:225
4074929998,1cyclictest0-21swapper/507:58:005
4074929997,2cyclictest656892-21kworker/u16:1+events_unbound09:19:335
4074929995,3cyclictest782362-21kthreadcore10:04:365
4074929987,1cyclictest0-21swapper/508:55:525
4074929987,1cyclictest0-21swapper/508:55:525
4074929984,3cyclictest577589-21awk08:34:345
4074929984,3cyclictest1075685-21irqcore12:04:355
4074929984,3cyclictest1008994-21cut11:34:385
4074929983,4cyclictest606380-21expr08:49:325
4074929983,4cyclictest488591-21vmstat07:44:505
4074869986,1cyclictest0-21swapper/409:09:394
4074869984,3cyclictest523204-21cut08:04:374
4074869983,4cyclictest509452-21grep07:59:334
4074869980,8cyclictest0-21swapper/408:59:314
4074929975,1cyclictest0-21swapper/508:09:325
4074929975,1cyclictest0-21swapper/508:09:325
4074929974,2cyclictest635281-21cpuspeed_turbos09:04:305
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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