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2026-08-07 - 22:20
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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 Aug 07, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19083332710,1sleep71908331-21ssh10:41:307
1439064995956,2cyclictest1796674-21kworker/u16:1+events_unbound09:54:184
143876225746,8sleep40-21swapper/407:08:134
143851125217,30sleep70-21swapper/707:04:397
1439074995045,4cyclictest1823627-21latency_hist10:08:247
1439068994542,2cyclictest1762239-21kworker/u16:1+events_unbound09:48:435
1439073994340,2cyclictest1598411-21kworker/u16:2+flush-8:008:33:256
1439073994240,2cyclictest1569536-21kworker/u16:1+flush-8:008:28:256
1439073994239,3cyclictest1598411-21kworker/u16:2+flush-8:009:03:246
1439073994239,3cyclictest1598411-21kworker/u16:2+flush-8:009:03:246
143867824232,7sleep50-21swapper/507:07:015
143867923928,8sleep60-21swapper/607:07:026
1439074993634,1cyclictest1676187-21diskmemload10:45:067
1439074993534,0cyclictest0-21swapper/710:31:397
1439074993534,0cyclictest0-21swapper/709:52:117
1439074993533,1cyclictest1676187-21diskmemload10:56:267
1439074993533,1cyclictest1676187-21diskmemload10:56:267
1439073993533,2cyclictest1796798-21kworker/u16:4+events_unbound09:58:476
1439073993531,3cyclictest2105398-21kworker/u16:3+flush-8:012:18:396
1439064993532,2cyclictest1598411-21kworker/u16:2+flush-8:008:33:434
1439074993432,1cyclictest2080663-21ssh11:53:077
1439068993431,2cyclictest1688372-21kworker/u16:0+flush-8:011:58:315
1439068993431,2cyclictest1688372-21kworker/u16:0+flush-8:011:33:305
1439068993431,2cyclictest1688372-21kworker/u16:0+flush-8:011:33:305
1439074993332,0cyclictest0-21swapper/711:35:187
1439074993332,0cyclictest0-21swapper/711:35:187
1439074993332,0cyclictest0-21swapper/711:00:237
1439074993331,1cyclictest2141775-21ssh12:17:537
1439074993330,2cyclictest2190050-21ssh12:36:467
1439074993328,4cyclictest1762198-21latency_hist09:43:247
1439074993231,0cyclictest0-21swapper/711:41:277
1439074993231,0cyclictest0-21swapper/711:25:227
1439074993231,0cyclictest0-21swapper/709:21:557
1439074993231,0cyclictest0-21swapper/709:11:007
1439074993230,1cyclictest1967635-21ntpq11:03:527
1439074993230,1cyclictest0-21swapper/709:37:067
1439074993230,1cyclictest0-21swapper/709:37:067
1439074993130,0cyclictest0-21swapper/712:02:577
1439074993130,0cyclictest0-21swapper/710:52:517
1439074993130,0cyclictest0-21swapper/710:27:437
1439074993129,1cyclictest0-21swapper/707:17:187
1439074993029,0cyclictest0-21swapper/710:11:517
1439068993029,1cyclictest1796798-21kworker/u16:4+events_unbound10:08:475
1439068993027,2cyclictest1569536-21kworker/u16:1+events_unbound08:28:385
1439074992928,0cyclictest0-21swapper/711:31:577
1439074992924,4cyclictest1700598-21latency_hist09:18:257
1439073992927,2cyclictest1491165-21kworker/u16:3+flush-8:007:53:256
1439068992927,2cyclictest2105398-21kworker/u16:3+events_unbound12:18:475
1439068992927,2cyclictest1796798-21kworker/u16:4+flush-8:010:18:435
1439064992927,2cyclictest1646588-21kworker/u16:3+flush-8:009:09:134
1439074992827,0cyclictest0-21swapper/707:08:527
1439074992826,1cyclictest2105790-21ssh12:03:307
1439073992823,4cyclictest1580062-21iostat_ios08:18:406
1439068992826,2cyclictest1796798-21kworker/u16:4+flush-8:009:58:385
1439068992826,2cyclictest1688372-21kworker/u16:0+flush-8:009:33:525
1439068992826,2cyclictest1688372-21kworker/u16:0+flush-8:009:33:525
1439074992726,0cyclictest0-21swapper/712:31:507
1439074992726,0cyclictest0-21swapper/709:31:597
1439073992725,2cyclictest1598411-21kworker/u16:2+flush-8:008:53:556
1439073992724,2cyclictest1461933-21kworker/u16:0+flush-8:007:23:456
1439068992724,2cyclictest1598411-21kworker/u16:2+flush-8:008:33:395
1439064992725,2cyclictest1688372-21kworker/u16:0+flush-8:009:43:524
1439074992625,0cyclictest0-21swapper/712:26:227
1439074992625,0cyclictest0-21swapper/710:36:587
1439073992624,2cyclictest2091006-21kworker/u16:2+flush-8:011:58:196
1439073992624,2cyclictest1365466-21kworker/u16:3+events_unbound07:13:296
1439068992624,2cyclictest1688372-21kworker/u16:0+flush-8:010:08:205
143907499250,23cyclictest2068511-21latency_hist11:48:247
1439068992523,2cyclictest1995724-21kworker/u16:4+flush-8:011:28:545
1439064992521,3cyclictest1835705-21kworker/u16:1+flush-8:010:43:254
1439074992423,0cyclictest0-21swapper/712:08:297
1439074992423,0cyclictest0-21swapper/708:18:367
1439074992422,1cyclictest1722837-21ssh09:24:067
1439074992422,1cyclictest1676187-21diskmemload11:10:527
1439073992422,2cyclictest1539703-21kworker/u16:0+flush-8:008:08:206
1439064992420,3cyclictest1688372-21kworker/u16:0+flush-8:011:18:424
1439074992322,0cyclictest0-21swapper/708:57:357
1439074992322,0cyclictest0-21swapper/707:20:557
1439073992321,2cyclictest1688372-21kworker/u16:0+flush-8:009:43:306
1439073992321,2cyclictest1646588-21kworker/u16:3+events_unbound09:18:386
1439068992321,2cyclictest2091006-21kworker/u16:2+events_unbound12:23:545
1439074992221,0cyclictest0-21swapper/709:46:217
1439074992221,0cyclictest0-21swapper/708:49:367
1439074992218,3cyclictest2093035-21ssh11:58:217
1439073992220,2cyclictest1860751-21kworker/u16:3+flush-8:010:43:486
1439073992220,2cyclictest1796798-21kworker/u16:4+events_unbound10:13:526
1439073992220,2cyclictest1796798-21kworker/u16:4+events_unbound10:13:526
1439068992220,2cyclictest2044201-21kworker/u16:1+events_unbound11:43:485
1439068992220,2cyclictest1848198-21kworker/u16:2+events_unbound10:58:375
1439068992220,2cyclictest1688372-21kworker/u16:0+flush-8:011:18:195
1439068992220,2cyclictest1491165-21kworker/u16:3+events_unbound07:58:505
1439073992118,2cyclictest1688372-21kworker/u16:0+flush-8:012:08:356
1439074992019,0cyclictest0-21swapper/708:39:407
1439074992018,1cyclictest0-21swapper/707:58:357
1439068992018,2cyclictest1688372-21kworker/u16:0+flush-8:012:08:475
1439068992018,2cyclictest1646588-21kworker/u16:3+flush-8:009:08:505
1439068992017,2cyclictest1437300-21kworker/u16:2+flush-8:007:17:585
1439074991918,0cyclictest0-21swapper/710:16:547
1439074991918,0cyclictest0-21swapper/710:16:547
1439074991916,2cyclictest0-21swapper/708:58:497
1439074991916,2cyclictest0-21swapper/708:58:497
143907499190,17cyclictest1302-21snmpd09:53:297
1439073991917,2cyclictest1688372-21kworker/u16:0+flush-8:010:53:396
1439073991917,2cyclictest1688372-21kworker/u16:0+flush-8:010:53:396
1439068991917,2cyclictest1688372-21kworker/u16:0+flush-8:011:03:395
1439068991917,2cyclictest1646588-21kworker/u16:3+flush-8:009:23:475
1439068991917,2cyclictest1646588-21kworker/u16:3+events_unbound09:53:375
1439068991917,2cyclictest1548706-21kworker/u16:4+events_unbound08:08:485
1439064991916,3cyclictest1688372-21kworker/u16:0+flush-8:011:58:454
1439074991817,0cyclictest0-21swapper/710:21:087
1439074991817,0cyclictest0-21swapper/708:13:437
1439074991814,3cyclictest1302-21snmpd07:45:027
143907499180,16cyclictest1491421-21sshd-session07:32:437
1439073991816,2cyclictest1688372-21kworker/u16:0+flush-8:009:33:506
1439073991816,2cyclictest1688372-21kworker/u16:0+flush-8:009:33:506
1439068991816,2cyclictest2105398-21kworker/u16:3+events_unbound12:13:525
1439068991816,2cyclictest1548706-21kworker/u16:4+flush-8:008:18:465
1439074991716,0cyclictest0-21swapper/712:18:397
1439074991716,0cyclictest0-21swapper/711:22:067
1439073991715,2cyclictest1569536-21kworker/u16:1+flush-8:009:03:416
1439073991715,2cyclictest1569536-21kworker/u16:1+events_unbound09:13:376
1439073991715,2cyclictest1400150-21kworker/u16:1+events_unbound07:53:536
1439073991714,3cyclictest1995724-21kworker/u16:4+flush-8:011:23:436
1439073991714,2cyclictest1598411-21kworker/u16:2+events_unbound08:43:526
1439073991714,2cyclictest1548706-21kworker/u16:4+flush-8:008:08:556
1439068991715,2cyclictest1646588-21kworker/u16:3+flush-8:009:38:505
1439068991715,2cyclictest1598411-21kworker/u16:2+flush-8:008:48:505
1439064991714,2cyclictest1860751-21kworker/u16:3+flush-8:011:08:404
19681752160,0sleep60-21swapper/611:03:576
1439074991615,0cyclictest0-21swapper/710:00:177
1439073991613,3cyclictest1995724-21kworker/u16:4+events_unbound11:33:546
1439073991613,3cyclictest1995724-21kworker/u16:4+events_unbound11:33:546
1439073991612,4cyclictest0-21swapper/609:38:356
143907399160,2cyclictest1892827-21grep10:33:456
1439068991614,2cyclictest1461933-21kworker/u16:0+flush-8:007:43:385
1439068991614,2cyclictest1437300-21kworker/u16:2+flush-8:007:28:585
1439068991613,2cyclictest1569536-21kworker/u16:1+events_unbound08:43:395
143906499160,1cyclictest0-21swapper/411:48:474
1439073991513,2cyclictest2091006-21kworker/u16:2+events_unbound12:16:146
143907399150,1cyclictest0-21swapper/611:02:186
143907399150,1cyclictest0-21swapper/610:06:586
1439064991514,1cyclictest0-21swapper/409:20:224
1439064991513,2cyclictest1796798-21kworker/u16:4+events_unbound10:08:394
143906499150,7cyclictest0-21swapper/408:28:414
143906499150,1cyclictest0-21swapper/409:53:094
1439073991413,1cyclictest0-21swapper/610:09:016
1439073991412,2cyclictest2044201-21kworker/u16:1+flush-8:011:43:446
1439073991412,2cyclictest1860751-21kworker/u16:3+flush-8:010:28:466
143907399140,1cyclictest0-21swapper/611:31:006
143907399140,1cyclictest0-21swapper/609:09:536
143907399140,14cyclictest0-21swapper/612:01:356
143907399140,14cyclictest0-21swapper/609:24:146
1439068991411,2cyclictest1995724-21kworker/u16:4+events_unbound11:18:435
1439068991410,3cyclictest1461933-21kworker/u16:0+flush-8:007:23:505
1439064991413,1cyclictest0-21swapper/412:09:514
1439064991413,1cyclictest0-21swapper/410:08:084
1439064991412,2cyclictest1688372-21kworker/u16:0+flush-8:010:53:544
1439064991412,2cyclictest1688372-21kworker/u16:0+flush-8:010:53:544
1439064991412,1cyclictest0-21swapper/412:33:494
1439064991411,2cyclictest1539703-21kworker/u16:0+flush-8:008:18:504
143906499140,14cyclictest0-21swapper/411:33:074
143906499140,14cyclictest0-21swapper/410:30:504
143906499140,14cyclictest0-21swapper/409:26:314
143907499139,3cyclictest1302-21snmpd08:07:337
143907499139,3cyclictest1302-21snmpd07:40:297
1439074991312,0cyclictest0-21swapper/708:36:157
1439074991312,0cyclictest0-21swapper/707:54:437
1439074991310,2cyclictest1302-21snmpd09:07:407
1439073991312,1cyclictest0-21swapper/610:38:586
1439073991312,1cyclictest0-21swapper/609:50:256
1439073991312,1cyclictest0-21swapper/609:30:236
1439073991311,2cyclictest1491165-21kworker/u16:3+flush-8:007:43:556
1439073991311,2cyclictest1461933-21kworker/u16:0+events_unbound07:33:476
143907399130,1cyclictest0-21swapper/608:03:126
143907399130,13cyclictest0-21swapper/612:23:306
1439068991311,2cyclictest1688372-21kworker/u16:0+events_unbound09:28:455
1439068991311,2cyclictest1548706-21kworker/u16:4+flush-8:008:23:405
1439064991312,1cyclictest0-21swapper/412:16:384
1439064991312,1cyclictest0-21swapper/411:39:254
1439064991312,1cyclictest0-21swapper/411:36:164
1439064991312,1cyclictest0-21swapper/411:36:164
1439064991312,1cyclictest0-21swapper/411:23:394
1439064991312,1cyclictest0-21swapper/410:48:494
1439064991312,1cyclictest0-21swapper/410:21:044
1439064991310,3cyclictest1688372-21kworker/u16:0+flush-8:010:13:544
1439064991310,3cyclictest1688372-21kworker/u16:0+flush-8:010:13:544
143906499130,1cyclictest0-21swapper/408:59:144
143906499130,1cyclictest0-21swapper/408:59:144
143907499129,2cyclictest1302-21snmpd07:34:057
143907499127,4cyclictest1637222-21systemd-run08:48:247
1439074991212,0cyclictest0-21swapper/708:27:047
143907499120,11cyclictest1302-21snmpd11:17:137
1439073991211,1cyclictest0-21swapper/611:41:346
1439073991211,1cyclictest0-21swapper/609:54:316
1439073991210,2cyclictest2139752-21kworker/u16:1+flush-8:012:28:386
1439073991210,2cyclictest2091006-21kworker/u16:2+events_unbound12:03:486
143906899129,2cyclictest2082198-21irqcore11:53:425
1439068991211,1cyclictest0-21swapper/511:25:595
1439068991210,2cyclictest1848198-21kworker/u16:2+flush-8:010:52:345
1439068991210,2cyclictest1848198-21kworker/u16:2+events_unbound10:38:495
1439068991210,2cyclictest1688372-21kworker/u16:0+events_unbound11:48:475
1439068991210,2cyclictest1548706-21kworker/u16:4+events_unbound08:03:415
143906899120,12cyclictest0-21swapper/512:29:225
1439064991211,1cyclictest0-21swapper/410:46:464
1439064991211,1cyclictest0-21swapper/410:34:564
143906499120,1cyclictest0-21swapper/408:51:594
143906499120,12cyclictest0-21swapper/408:48:214
143907499118,2cyclictest1302-21snmpd08:12:397
143907499118,2cyclictest1302-21snmpd07:50:537
143907499118,2cyclictest1302-21snmpd07:26:017
1439074991111,0cyclictest0-21swapper/708:30:437
1439073991110,1cyclictest0-21swapper/607:30:536
143907399110,4cyclictest1990724-21grep11:13:446
143907399110,11cyclictest0-21swapper/608:33:576
143907399110,10cyclictest1506292-21kthreadcore07:38:436
143906899119,2cyclictest2044201-21kworker/u16:1+events_unbound12:03:405
143906899119,2cyclictest1688372-21kworker/u16:0+events_unbound10:53:465
143906899119,2cyclictest1688372-21kworker/u16:0+events_unbound10:53:465
143906899119,2cyclictest1569536-21kworker/u16:1+flush-8:009:18:405
143906899119,2cyclictest1569536-21kworker/u16:1+flush-8:009:13:355
143906899119,2cyclictest1539703-21kworker/u16:0+events_unbound08:13:495
143906899119,2cyclictest1400150-21kworker/u16:1+flush-8:007:53:435
143906899118,2cyclictest1763552-21irqcore09:43:415
143906899117,3cyclictest1496537-21kthreadcore07:33:455
1439068991110,1cyclictest0-21swapper/511:40:585
1439068991110,1cyclictest0-21swapper/510:47:595
1439068991110,1cyclictest0-21swapper/510:36:285
1439068991110,1cyclictest0-21swapper/509:06:085
143906899110,11cyclictest0-21swapper/507:39:065
143906899110,11cyclictest0-21swapper/507:20:205
143906499119,2cyclictest1548706-21kworker/u16:4+events_unbound08:17:184
143906499118,2cyclictest2091006-21kworker/u16:2+flush-8:012:23:444
1439064991110,1cyclictest0-21swapper/409:39:174
1439064991110,1cyclictest0-21swapper/408:54:024
143906499110,11cyclictest0-21swapper/409:04:264
143906499110,11cyclictest0-21swapper/408:04:414
143906499110,11cyclictest0-21swapper/408:01:324
143907399109,1cyclictest0-21swapper/610:52:226
143907399109,1cyclictest0-21swapper/608:14:146
143907399109,1cyclictest0-21swapper/607:10:326
143907399105,4cyclictest1849390-21cat10:18:386
143907399104,5cyclictest0-21swapper/611:08:426
143907399104,5cyclictest0-21swapper/610:23:416
143907399101,2cyclictest1471444-21timerandwakeup07:18:546
143907399100,4cyclictest2186527-21kthreadcore12:33:446
143907399100,3cyclictest1641183-21kthreadcore08:48:436
143906899107,2cyclictest1661299-21kthreadcore08:58:445
143906899107,2cyclictest1661299-21kthreadcore08:58:445
143906899106,3cyclictest1873971-21cat10:28:395
143906499109,1cyclictest0-21swapper/411:02:514
143906499109,1cyclictest0-21swapper/409:35:114
143906499109,1cyclictest0-21swapper/409:35:114
143906499109,1cyclictest0-21swapper/409:14:134
143906499108,2cyclictest1461933-21kworker/u16:0+events_unbound07:38:384
143906499100,0cyclictest0-21swapper/407:29:504
14390739994,4cyclictest2069637-21tune2fs11:48:386
14390739993,5cyclictest0-21swapper/611:18:426
14390689998,1cyclictest0-21swapper/508:56:125
14390689998,1cyclictest0-21swapper/508:42:385
14390689997,2cyclictest1688372-21kworker/u16:0+events_unbound10:13:425
14390689997,2cyclictest1688372-21kworker/u16:0+events_unbound10:13:425
14390689997,1cyclictest0-21swapper/507:48:435
14390649998,1cyclictest0-21swapper/412:21:504
14390649998,1cyclictest0-21swapper/411:53:374
14390649998,1cyclictest0-21swapper/411:44:094
14390649998,1cyclictest0-21swapper/408:27:044
14390649998,1cyclictest0-21swapper/407:49:244
14390649998,1cyclictest0-21swapper/407:22:544
14390649996,2cyclictest0-21swapper/412:03:424
14390649994,4cyclictest6150-21gdbus07:17:274
14390739983,4cyclictest1621206-21cut08:38:416
14390689986,2cyclictest2105398-21kworker/u16:3+flush-8:012:33:505
14390689986,1cyclictest0-21swapper/511:08:425
14390689983,4cyclictest1869714-21sendmail_mailst10:23:515
14390649987,1cyclictest0-21swapper/411:08:034
14390649987,1cyclictest0-21swapper/410:02:564
14390649985,2cyclictest0-21swapper/411:13:434
14390649985,2cyclictest0-21swapper/408:38:404
14390649984,3cyclictest1726502-21cat09:28:374
14390649984,3cyclictest1511305-21cpu07:43:364
14390649983,4cyclictest2168031-21irqcore12:28:414
14390649983,4cyclictest1538522-21cut07:53:474
14390649983,4cyclictest1472485-21grep07:23:374
14390689976,1cyclictest0-21swapper/507:09:375
14390649974,2cyclictest1861897-21irqcore10:23:414
14390649973,3cyclictest1562648-21kthreadcore08:08:424
14390649973,3cyclictest1491993-21cat07:33:374
14390649960,1cyclictest0-21swapper/407:08:564
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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