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2026-07-22 - 17:48
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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 Wed Jul 22, 2026 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
163188025318,30sleep70-21swapper/707:09:157
22312662500,0sleep72231269-21cut11:34:467
163168924232,7sleep60-21swapper/607:06:336
23740912410,0sleep72374090-21if_err_p4p112:34:417
163166023726,8sleep40-21swapper/407:06:074
1632163993531,3cyclictest2224890-21kworker/u16:0+flush-8:011:34:204
163173723424,7sleep50-21swapper/507:07:125
1632172993332,0cyclictest0-21swapper/708:19:267
1632172993332,0cyclictest0-21swapper/708:19:267
1632172993130,0cyclictest0-21swapper/710:51:457
19541512300,1sleep60-21swapper/609:42:256
1632172993029,0cyclictest0-21swapper/712:13:117
1632163992826,2cyclictest1868840-21kworker/u16:4+events_unbound09:34:564
1632168992721,3cyclictest1801177-21awk08:34:266
1632163992725,2cyclictest2224890-21kworker/u16:0+flush-8:011:45:124
1632163992722,4cyclictest1762284-21latency_hist08:14:264
1632172992622,2cyclictest2275703-21perl11:54:427
1632166992624,2cyclictest2040584-21kworker/u16:2+events_unbound10:29:405
1632163992624,2cyclictest2126917-21kworker/u16:2+flush-8:010:59:214
1632163992624,2cyclictest1811256-21kworker/u16:0+flush-8:009:14:204
1632163992623,2cyclictest2296542-21kworker/u16:3+flush-8:012:16:154
1632172992524,0cyclictest0-21swapper/711:51:237
1632166992521,3cyclictest1907231-21diskstats09:24:435
1632163992523,2cyclictest1889288-21kworker/u16:2+flush-8:009:29:564
23783622240,0sleep50-21swapper/512:34:475
1632172992423,0cyclictest0-21swapper/710:01:237
1632172992423,0cyclictest0-21swapper/709:51:397
1632172992423,0cyclictest0-21swapper/708:54:217
1632172992423,0cyclictest0-21swapper/708:26:407
1632172992423,0cyclictest0-21swapper/707:56:137
1632172992422,1cyclictest2200259-21ssh11:23:187
1632166992422,2cyclictest2026948-21kworker/u16:1+flush-8:012:04:475
1632163992422,2cyclictest1942269-21kworker/u16:0+flush-8:010:00:254
1632163992421,2cyclictest1771959-21kworker/u16:4+flush-8:008:19:524
1632172992322,0cyclictest0-21swapper/711:00:467
1632172992322,0cyclictest0-21swapper/709:19:147
1632172992322,0cyclictest0-21swapper/709:03:447
1632172992320,2cyclictest2297644-21sh12:02:007
1632166992321,2cyclictest2113795-21kworker/u16:0+flush-8:011:18:235
1632163992321,2cyclictest2040584-21kworker/u16:2+events_unbound10:46:534
1632172992221,0cyclictest0-21swapper/712:32:147
1632172992221,0cyclictest0-21swapper/711:49:227
1632172992219,2cyclictest2043103-21kthreadcore10:19:447
1632172992219,2cyclictest2043103-21kthreadcore10:19:447
1632166992217,4cyclictest1752558-21latency_hist08:09:265
1632163992220,2cyclictest2026948-21kworker/u16:1+flush-8:010:39:524
1632163992220,2cyclictest1868840-21kworker/u16:4+events_unbound09:55:004
1632163992220,2cyclictest1712722-21kworker/u16:1+flush-8:008:34:424
1632172992120,0cyclictest0-21swapper/707:19:547
1632172992119,1cyclictest0-21swapper/710:05:377
1632166992117,3cyclictest1712722-21kworker/u16:1+flush-8:008:18:315
1632166992117,3cyclictest1712722-21kworker/u16:1+flush-8:008:18:315
1632163992119,2cyclictest2224890-21kworker/u16:0+flush-8:011:49:364
1632163992119,2cyclictest1829436-21kworker/u16:3+flush-8:009:04:574
1632163992119,2cyclictest1656940-21kworker/u16:3+events_unbound07:34:454
1632172992019,0cyclictest0-21swapper/712:20:017
1632172992019,0cyclictest0-21swapper/711:41:337
1632172992019,0cyclictest0-21swapper/711:30:477
1632172992019,0cyclictest0-21swapper/708:13:197
1632168992016,3cyclictest1820731-21cat08:44:266
1632166992016,3cyclictest1868840-21kworker/u16:4+flush-8:010:29:265
1632172991918,0cyclictest0-21swapper/707:27:127
1632166991917,2cyclictest2026948-21kworker/u16:1+flush-8:012:04:215
1632163991917,2cyclictest2126917-21kworker/u16:2+flush-8:011:12:164
1632163991917,2cyclictest2067257-21kworker/u16:0+flush-8:010:29:514
1632163991916,2cyclictest2237465-21kworker/u16:3+events_unbound11:44:254
1632172991817,0cyclictest0-21swapper/710:58:427
1632166991816,2cyclictest1568309-21kworker/u16:0+flush-8:007:29:415
1632163991816,2cyclictest2296542-21kworker/u16:3+flush-8:012:25:084
1632163991816,2cyclictest2296542-21kworker/u16:3+flush-8:012:25:084
1632163991816,2cyclictest2250319-21kworker/u16:2+events_unbound12:35:354
1632163991816,2cyclictest2224890-21kworker/u16:0+events_unbound11:56:364
1632163991816,2cyclictest2126917-21kworker/u16:2+events_unbound11:24:354
1632163991816,2cyclictest1889288-21kworker/u16:2+events_unbound09:19:424
1632172991716,0cyclictest0-21swapper/711:25:107
1632172991716,0cyclictest0-21swapper/710:40:037
1632172991716,0cyclictest0-21swapper/708:49:007
1632172991716,0cyclictest0-21swapper/707:35:327
1632172991715,1cyclictest1916470-21taskset09:25:557
1632172991714,2cyclictest1302-21snmpd09:06:497
163216899170,1cyclictest86-21ksoftirqd/612:10:136
1632163991715,2cyclictest2026948-21kworker/u16:1+events_unbound12:07:364
1632163991715,2cyclictest2026948-21kworker/u16:1+events_unbound10:19:384
1632163991715,2cyclictest2026948-21kworker/u16:1+events_unbound10:19:384
1632163991715,2cyclictest1868840-21kworker/u16:4+flush-8:009:44:454
1632163991715,2cyclictest1712722-21kworker/u16:1+events_unbound08:29:444
1632172991615,0cyclictest0-21swapper/707:48:557
1632172991615,0cyclictest0-21swapper/707:12:547
1632172991612,3cyclictest1302-21snmpd10:31:097
163217299160,14cyclictest0-21swapper/707:29:487
1632168991614,2cyclictest2075723-21kworker/u16:3+flush-8:010:39:266
1632163991614,2cyclictest2224890-21kworker/u16:0+flush-8:011:34:564
1632163991614,2cyclictest2126917-21kworker/u16:2+flush-8:011:05:244
1632163991614,2cyclictest1868840-21kworker/u16:4+events_unbound09:24:434
1632163991614,2cyclictest1656940-21kworker/u16:3+events_unbound07:44:494
163216399160,16cyclictest0-21swapper/410:18:334
163216399160,16cyclictest0-21swapper/410:18:334
1632172991514,0cyclictest0-21swapper/708:42:387
1632172991513,1cyclictest2160858-21ssh11:04:527
1632172991513,1cyclictest1869169-21diskmemload12:06:327
163217299150,14cyclictest0-21swapper/707:14:537
1632168991514,1cyclictest0-21swapper/611:49:246
1632168991514,1cyclictest0-21swapper/611:30:106
1632168991514,1cyclictest0-21swapper/610:43:586
1632168991513,2cyclictest2040584-21kworker/u16:2+flush-8:010:24:266
1632168991513,2cyclictest2040584-21kworker/u16:2+flush-8:010:24:266
1632166991512,2cyclictest1712722-21kworker/u16:1+flush-8:008:24:535
1632163991514,1cyclictest0-21swapper/412:33:494
1632163991513,2cyclictest2126917-21kworker/u16:2+flush-8:011:01:514
1632163991513,2cyclictest2113795-21kworker/u16:0+events_unbound11:16:364
1632163991513,2cyclictest1942269-21kworker/u16:0+events_unbound10:09:404
1632163991512,2cyclictest1683327-21kworker/u16:4+events_unbound07:49:404
163216399150,1cyclictest1740469-21kthreadcore07:59:484
21162312140,1sleep60-21swapper/610:49:416
1632172991413,0cyclictest0-21swapper/708:02:247
1632172991412,1cyclictest0-21swapper/710:45:347
1632172991411,2cyclictest1302-21snmpd09:31:327
1632172991410,3cyclictest1302-21snmpd09:23:317
163217299140,13cyclictest0-21swapper/709:11:037
163216899146,8cyclictest0-21swapper/608:27:006
1632168991413,1cyclictest0-21swapper/612:38:356
1632168991413,1cyclictest0-21swapper/611:24:486
1632168991413,1cyclictest0-21swapper/610:08:586
163216899140,1cyclictest0-21swapper/612:15:346
163216899140,1cyclictest0-21swapper/611:42:286
163216899140,1cyclictest0-21swapper/609:02:266
163216899140,14cyclictest0-21swapper/611:15:116
163216899140,14cyclictest0-21swapper/609:38:136
1632166991413,1cyclictest0-21swapper/511:24:435
163216699140,14cyclictest0-21swapper/511:39:145
163216699140,14cyclictest0-21swapper/509:44:365
163216699140,0cyclictest0-21swapper/509:23:195
1632163991413,1cyclictest0-21swapper/409:49:424
1632163991412,2cyclictest2026948-21kworker/u16:1+flush-8:010:24:494
1632163991412,2cyclictest2026948-21kworker/u16:1+events_unbound10:52:374
163216399140,14cyclictest0-21swapper/412:02:464
163216399140,13cyclictest0-21swapper/410:34:284
163217299139,3cyclictest1302-21snmpd10:12:367
1632172991312,0cyclictest0-21swapper/708:22:167
1632172991312,0cyclictest0-21swapper/707:41:577
1632172991310,2cyclictest0-21swapper/711:09:397
1632172991310,2cyclictest0-21swapper/709:39:537
163216899136,6cyclictest0-21swapper/609:09:406
1632168991312,1cyclictest0-21swapper/612:23:376
1632168991312,1cyclictest0-21swapper/610:32:186
1632168991312,1cyclictest0-21swapper/609:25:466
1632168991312,1cyclictest0-21swapper/609:23:436
163216899130,13cyclictest0-21swapper/610:54:326
163216899130,13cyclictest0-21swapper/610:10:336
163216899130,13cyclictest0-21swapper/608:49:496
163216899130,0cyclictest0-21swapper/612:28:586
163216899130,0cyclictest0-21swapper/612:28:586
1632166991312,1cyclictest1868840-21kworker/u16:4+events_unbound09:34:335
1632166991312,1cyclictest0-21swapper/510:59:115
1632166991312,1cyclictest0-21swapper/510:53:215
1632166991312,1cyclictest0-21swapper/510:40:355
1632166991312,1cyclictest0-21swapper/510:15:025
1632166991312,1cyclictest0-21swapper/510:15:025
1632166991312,1cyclictest0-21swapper/510:13:285
1632166991311,2cyclictest1712722-21kworker/u16:1+events_unbound09:14:435
1632166991311,2cyclictest1568309-21kworker/u16:0+flush-8:007:09:405
163216699130,13cyclictest0-21swapper/512:32:505
163216699130,13cyclictest0-21swapper/511:51:325
163216699130,13cyclictest0-21swapper/511:33:525
163216699130,13cyclictest0-21swapper/511:00:465
163216699130,13cyclictest0-21swapper/510:07:385
163216699130,13cyclictest0-21swapper/509:30:355
163216699130,12cyclictest1-21systemd08:54:265
1632163991312,1cyclictest0-21swapper/409:44:014
1632163991311,2cyclictest1622102-21kworker/u16:2+events_unbound07:39:504
16820972120,1sleep40-21swapper/407:29:464
163217299128,3cyclictest1302-21snmpd12:25:217
163217299128,3cyclictest1302-21snmpd12:25:217
163217299128,3cyclictest1302-21snmpd08:58:047
163217299128,3cyclictest1302-21snmpd08:35:487
163217299128,3cyclictest1302-21snmpd08:09:087
1632172991210,1cyclictest0-21swapper/711:14:417
163216899129,2cyclictest1985139-21kthreadcore09:54:476
163216899128,3cyclictest1860650-21cat09:04:436
1632168991211,1cyclictest0-21swapper/612:02:106
1632168991211,1cyclictest0-21swapper/611:12:306
1632168991211,1cyclictest0-21swapper/611:05:066
1632168991211,1cyclictest0-21swapper/609:52:446
163216899120,0cyclictest0-21swapper/607:59:226
1632166991211,1cyclictest0-21swapper/512:21:015
1632166991211,1cyclictest0-21swapper/510:39:005
1632166991211,1cyclictest0-21swapper/509:12:275
1632163991211,1cyclictest0-21swapper/409:16:354
1632163991211,1cyclictest0-21swapper/407:24:294
1632163991210,2cyclictest1942269-21kworker/u16:0+events_unbound10:05:244
1632163991210,2cyclictest1712722-21kworker/u16:1+flush-8:008:04:484
163217299117,3cyclictest1302-21snmpd10:36:007
163217299117,3cyclictest1302-21snmpd10:25:487
1632172991111,0cyclictest0-21swapper/709:35:247
1632168991110,1cyclictest0-21swapper/612:30:336
1632168991110,1cyclictest0-21swapper/611:57:556
1632168991110,1cyclictest0-21swapper/608:57:426
1632168991110,1cyclictest0-21swapper/607:24:416
1632168991110,1cyclictest0-21swapper/607:11:556
163216899110,4cyclictest1751512-21missed_timers08:04:496
163216899110,11cyclictest0-21swapper/607:47:426
163216899110,10cyclictest1702094-21kthreadcore07:39:486
163216699119,2cyclictest1829436-21kworker/u16:3+flush-8:009:04:425
1632166991110,1cyclictest0-21swapper/512:14:335
1632166991110,1cyclictest0-21swapper/511:46:105
1632166991110,1cyclictest0-21swapper/511:08:105
1632166991110,1cyclictest0-21swapper/508:39:485
1632166991110,1cyclictest0-21swapper/508:35:055
1632166991110,1cyclictest0-21swapper/507:47:285
1632166991110,1cyclictest0-21swapper/507:35:105
163216699110,11cyclictest0-21swapper/508:11:265
163216399119,2cyclictest2311038-21kworker/u16:0+events_unbound12:21:524
163216399119,2cyclictest2296542-21kworker/u16:3+events_unbound12:11:524
163216399119,2cyclictest2126917-21kworker/u16:2+events_unbound11:19:284
163216399119,2cyclictest1622102-21kworker/u16:2+flush-8:008:14:524
163216399119,2cyclictest1622102-21kworker/u16:2+flush-8:008:14:524
1632163991110,1cyclictest0-21swapper/408:59:524
1632163991110,1cyclictest0-21swapper/408:50:254
163216399110,11cyclictest0-21swapper/408:42:324
163216399110,11cyclictest0-21swapper/408:26:464
163216399110,11cyclictest0-21swapper/407:17:334
163217299109,0cyclictest0-21swapper/707:49:457
163217299106,3cyclictest5965-21gmain09:55:437
163217299105,4cyclictest934-21dbus-daemon12:16:047
163217299105,4cyclictest6233-21gvfs-afc-volume09:45:087
163217299105,4cyclictest2031627-21ssh10:14:447
163217299105,4cyclictest2031627-21ssh10:14:447
163216899109,1cyclictest0-21swapper/611:53:396
163216899109,1cyclictest0-21swapper/609:49:066
163216899109,1cyclictest0-21swapper/609:33:016
163216899109,1cyclictest0-21swapper/608:46:406
163216899109,1cyclictest0-21swapper/607:37:366
163216899108,2cyclictest86-21ksoftirqd/611:00:046
163216899106,3cyclictest2030338-21cat10:14:416
163216899106,3cyclictest2030338-21cat10:14:416
163216899105,4cyclictest1714812-21cat07:49:436
163216899100,9cyclictest0-21swapper/609:14:456
163216899100,2cyclictest1678085-21kthreadcore07:29:436
163216699109,1cyclictest0-21swapper/512:11:525
163216699109,1cyclictest0-21swapper/511:40:485
163216699109,1cyclictest0-21swapper/508:59:505
163216699109,1cyclictest0-21swapper/508:55:065
163216699109,1cyclictest0-21swapper/508:30:215
163216699109,1cyclictest0-21swapper/507:27:365
163216699108,2cyclictest2026948-21kworker/u16:1+events_unbound10:19:405
163216699108,2cyclictest2026948-21kworker/u16:1+events_unbound10:19:405
163216699106,3cyclictest2115186-21cat10:49:265
163216699106,3cyclictest1993485-21cat09:59:425
163216699102,5cyclictest1704190-21date07:44:265
163216399107,2cyclictest1635816-21kthreadcore07:09:444
163216399106,3cyclictest1821791-21cat08:44:424
16321689998,1cyclictest0-21swapper/612:06:266
16321689998,1cyclictest0-21swapper/610:03:086
16321689997,2cyclictest86-21ksoftirqd/610:47:056
16321689996,2cyclictest1762676-21/usr/sbin/munin08:14:536
16321689996,2cyclictest1762676-21/usr/sbin/munin08:14:536
16321689996,2cyclictest0-21swapper/607:59:526
16321689995,3cyclictest1656571-21cat07:19:416
16321689991,2cyclictest0-21swapper/611:34:536
16321689990,8cyclictest2057260-21kthreadcore10:24:456
16321689990,3cyclictest2200991-21cat11:24:266
16321689990,3cyclictest1777215-21kthreadcore08:19:466
16321689990,2cyclictest1801559-21/usr/sbin/munin08:34:556
16321689990,2cyclictest1761325-21ntpq08:09:516
16321669998,1cyclictest0-21swapper/508:48:485
16321639990,8cyclictest1848644-21memory08:54:504
16321729980,7cyclictest1302-21snmpd08:29:457
16321689984,3cyclictest86-21ksoftirqd/607:14:446
16321669987,1cyclictest0-21swapper/512:26:225
16321669987,1cyclictest0-21swapper/512:26:225
16321669987,1cyclictest0-21swapper/511:22:035
16321669987,1cyclictest0-21swapper/511:11:195
16321669987,1cyclictest0-21swapper/509:58:385
16321669986,1cyclictest0-21swapper/507:59:425
16321669986,1cyclictest0-21swapper/507:14:415
16321669983,4cyclictest1945247-21cut09:39:425
16321669983,4cyclictest1722347-21sed07:49:505
16321639983,4cyclictest1732534-21timerandwakeup07:54:584
16321669976,1cyclictest0-21swapper/511:55:475
16321669974,2cyclictest1656555-21if_p4p107:19:415
16321669973,3cyclictest1773715-21cut08:19:445
16321669972,4cyclictest1969519-21kthreadcore09:49:425
16321669972,4cyclictest1724061-21seq07:54:425
16321639974,2cyclictest1656287-21df_inode07:19:394
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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