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2026-07-15 - 21:44
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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 376 highest latencies:
System rack0slot2.osadl.org (updated Wed Jul 15, 2026 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15519012950,1sleep71551902-21kthreadcore11:15:177
13159282940,1sleep50-21swapper/509:40:185
10410962940,1sleep71041097-21cat07:30:077
14257812690,1sleep71425784-21kthreadcore10:25:167
997469994744,2cyclictest1383811-21kworker/u16:0+events_unbound10:39:505
99694024737,7sleep50-21swapper/507:06:185
99716624130,8sleep40-21swapper/407:09:304
9970372417,29sleep70-21swapper/707:07:407
98790624129,8sleep60-21swapper/607:04:596
997473994037,2cyclictest1132417-21kworker/u16:0+events_unbound08:20:086
997473993735,2cyclictest1408392-21kworker/u16:1+events_unbound11:15:266
997473993735,2cyclictest1156117-21kworker/u16:5+events_unbound09:42:076
997473993634,2cyclictest1408392-21kworker/u16:1+events_unbound10:47:436
997473993533,2cyclictest1615723-21kworker/u16:0+events_unbound12:06:426
997473993533,2cyclictest1469975-21kworker/u16:2+events_unbound11:33:156
997473993533,2cyclictest1383811-21kworker/u16:0+events_unbound10:32:206
997473993529,6cyclictest1346743-21kworker/u16:3+events_unbound10:38:266
997469993533,2cyclictest1383811-21kworker/u16:0+flush-8:010:25:245
997473993432,2cyclictest1705167-21kworker/u16:3+events_unbound12:20:586
997473993432,2cyclictest1503782-21kworker/u16:3+events_unbound11:23:236
997473993432,2cyclictest1469975-21kworker/u16:2+events_unbound11:05:226
997473993432,2cyclictest1383811-21kworker/u16:0+events_unbound10:24:236
997473993432,2cyclictest1156117-21kworker/u16:5+events_unbound09:57:476
997473993432,2cyclictest1006887-21kworker/u16:2+events_unbound07:55:236
997473993331,2cyclictest1689894-21kworker/u16:4+events_unbound12:11:156
997473993331,2cyclictest1542199-21kworker/u16:0+events_unbound11:14:196
997473993331,2cyclictest1408392-21kworker/u16:1+events_unbound11:25:246
997473993230,2cyclictest1665494-21kworker/u16:1+events_unbound12:27:446
997473993230,2cyclictest1469975-21kworker/u16:2+events_unbound10:51:396
997473993230,2cyclictest1383811-21kworker/u16:0+events_unbound10:27:476
997473993230,2cyclictest1176977-21kworker/u16:0+flush-8:008:50:226
997473993230,2cyclictest1156117-21kworker/u16:5+flush-8:009:15:396
997469993229,3cyclictest1236752-21kworker/u16:1+flush-8:009:20:125
997469993229,2cyclictest1503782-21kworker/u16:3+flush-8:011:49:585
997473993129,2cyclictest1739339-21kworker/u16:2+events_unbound12:36:286
997473993129,2cyclictest1503782-21kworker/u16:3+events_unbound11:38:186
997473993129,2cyclictest1383811-21kworker/u16:0+events_unbound10:40:036
997473993129,2cyclictest1383811-21kworker/u16:0+events_unbound10:40:036
997473993129,2cyclictest1383810-21kworker/u16:6+events_unbound10:15:166
997473993129,2cyclictest1257376-21kworker/u16:0+events_unbound09:33:396
997473993129,2cyclictest1156117-21kworker/u16:5+events_unbound09:54:316
997473993129,2cyclictest1107368-21kworker/u16:4+flush-8:009:05:156
997473993028,2cyclictest1615723-21kworker/u16:0+events_unbound12:16:596
997473993028,2cyclictest1371248-21kworker/u16:4+flush-8:010:05:136
997469993028,2cyclictest1578636-21kworker/u16:0+flush-8:011:30:245
997475992924,4cyclictest648-21systemd-journal07:18:457
997473992927,2cyclictest1342469-21kworker/u16:1+events_unbound10:02:366
997473992927,2cyclictest1257376-21kworker/u16:0+events_unbound09:26:076
997473992927,2cyclictest1236752-21kworker/u16:1+flush-8:009:35:256
997473992926,2cyclictest1006887-21kworker/u16:2+flush-8:008:25:096
997467992927,2cyclictest1689894-21kworker/u16:4+flush-8:012:15:554
997473992826,2cyclictest968138-21kworker/u16:0+events_unbound07:10:046
997473992826,2cyclictest1615723-21kworker/u16:0+events_unbound11:40:386
997473992826,2cyclictest1236752-21kworker/u16:1+events_unbound09:23:076
997473992826,2cyclictest1156117-21kworker/u16:5+events_unbound09:46:566
997467992826,2cyclictest1615723-21kworker/u16:0+events_unbound12:24:484
12032802280,1chrt0-21swapper/508:50:185
997475992722,3cyclictest1319134-21sh09:40:427
997469992724,3cyclictest1469975-21kworker/u16:2+flush-8:010:44:595
15174002270,1chrt1517401-21rm11:01:307
997473992624,2cyclictest1665494-21kworker/u16:1+events_unbound12:03:466
997473992624,2cyclictest1408392-21kworker/u16:1+flush-8:010:55:176
997469992624,2cyclictest1469975-21kworker/u16:2+events_unbound11:06:035
997473992523,2cyclictest1615723-21kworker/u16:0+events_unbound11:55:516
997473992523,2cyclictest1037291-21kworker/u16:0+events_unbound07:30:186
12205362250,1chrt1220537-21kthreadcore09:00:137
997473992422,2cyclictest1503782-21kworker/u16:3+events_unbound11:00:016
997473992422,2cyclictest1346743-21kworker/u16:3+events_unbound10:11:436
997473992321,2cyclictest1705167-21kworker/u16:3+events_unbound12:30:446
997473992321,2cyclictest1615723-21kworker/u16:0+events_unbound11:52:066
997473992321,2cyclictest1615723-21kworker/u16:0+events_unbound11:45:226
997473992321,2cyclictest1156117-21kworker/u16:5+flush-8:009:10:096
997473992321,2cyclictest1107368-21kworker/u16:4+flush-8:008:35:246
997473992321,2cyclictest1107368-21kworker/u16:4+flush-8:008:35:246
997473992321,2cyclictest1037291-21kworker/u16:0+events_unbound07:47:206
997475992217,4cyclictest1457587-21dnf10:39:477
99747599220,20cyclictest648-21systemd-journal10:19:537
997473992220,2cyclictest1147722-21kworker/u16:1+events_unbound08:42:406
997473992220,2cyclictest1147722-21kworker/u16:1+events_unbound08:42:406
997473992220,2cyclictest1107368-21kworker/u16:4+events_unbound08:45:286
997473992219,2cyclictest1050344-21kworker/u16:1+events_unbound07:39:566
997469992220,2cyclictest1469975-21kworker/u16:2+events_unbound11:44:475
997469992220,2cyclictest1176977-21kworker/u16:0+flush-8:008:45:245
997475992116,4cyclictest648-21systemd-journal08:44:487
997475992116,4cyclictest648-21systemd-journal08:44:487
997473992119,2cyclictest968489-21kworker/u16:1+flush-8:007:15:036
997473992119,2cyclictest1020618-21kworker/u16:3+events_unbound07:24:516
997473992119,2cyclictest1006887-21kworker/u16:2+events_unbound07:52:566
997473992118,3cyclictest1089265-21kworker/u16:3+flush-8:008:05:276
997467992119,2cyclictest1469975-21kworker/u16:2+events_unbound11:42:084
997473992018,2cyclictest1089259-21kworker/u16:1+events_unbound08:00:086
997473992018,2cyclictest1037291-21kworker/u16:0+flush-8:007:25:256
99746799203,1cyclictest201rcu_preempt12:14:524
997467992018,2cyclictest1383811-21kworker/u16:0+events_unbound10:12:364
997467992018,2cyclictest1346743-21kworker/u16:3+events_unbound10:21:044
997467992018,2cyclictest1236752-21kworker/u16:1+events_unbound09:17:234
997467992018,2cyclictest1107368-21kworker/u16:4+events_unbound09:12:074
997467992018,2cyclictest1089265-21kworker/u16:3+events_unbound08:11:034
12760482200,1chrt1276049-21kthreadcore09:25:137
997473991917,2cyclictest1206175-21kworker/u16:2+flush-8:009:00:146
997473991917,2cyclictest1176977-21kworker/u16:0+flush-8:008:54:596
997473991917,2cyclictest1156117-21kworker/u16:5+events_unbound08:30:006
997467991917,2cyclictest1503782-21kworker/u16:3+events_unbound11:23:034
997467991917,2cyclictest1503782-21kworker/u16:3+events_unbound11:12:084
997467991917,2cyclictest1408392-21kworker/u16:1+events_unbound10:37:274
997467991917,2cyclictest1383811-21kworker/u16:0+events_unbound10:25:594
997467991917,2cyclictest1260037-21kworker/u16:2+events_unbound09:51:284
997469991817,1cyclictest1503782-21kworker/u16:3+events_unbound11:13:445
997469991816,2cyclictest1089265-21kworker/u16:3+flush-8:008:25:195
997469991814,3cyclictest1176612-21latency_hist08:39:535
997469991814,3cyclictest1176612-21latency_hist08:39:535
997467991816,2cyclictest1615723-21kworker/u16:0+events_unbound12:26:244
997467991816,2cyclictest1503782-21kworker/u16:3+events_unbound11:58:044
997467991816,2cyclictest1503782-21kworker/u16:3+events_unbound11:31:554
997467991816,2cyclictest1469975-21kworker/u16:2+events_unbound11:07:434
997467991816,2cyclictest1469975-21kworker/u16:2+events_unbound11:01:474
997467991816,2cyclictest1257376-21kworker/u16:0+events_unbound09:43:194
997467991816,2cyclictest1236752-21kworker/u16:1+events_unbound09:37:234
14162032180,0sleep50-21swapper/510:20:175
997473991715,2cyclictest1132417-21kworker/u16:0+events_unbound08:16:436
997469991714,2cyclictest1408392-21kworker/u16:1+events_unbound10:40:015
997469991714,2cyclictest1408392-21kworker/u16:1+events_unbound10:40:015
997469991713,3cyclictest1358815-21cat09:59:535
99746799172,15cyclictest1383810-21kworker/u16:6-xprtiod10:18:044
997467991715,2cyclictest1739339-21kworker/u16:2+events_unbound12:32:124
997467991715,2cyclictest1615723-21kworker/u16:0+events_unbound12:06:014
997467991715,2cyclictest1503782-21kworker/u16:3+events_unbound10:57:474
997467991715,2cyclictest1469975-21kworker/u16:2+events_unbound11:26:484
997467991715,2cyclictest1469975-21kworker/u16:2+events_unbound10:46:194
997467991715,2cyclictest1408392-21kworker/u16:1+events_unbound11:16:154
997467991715,2cyclictest1383811-21kworker/u16:0+events_unbound10:41:164
997467991715,2cyclictest1383811-21kworker/u16:0+events_unbound10:41:164
997467991715,2cyclictest1257376-21kworker/u16:0+events_unbound09:47:354
997467991715,2cyclictest1257376-21kworker/u16:0+events_unbound09:27:164
997467991715,2cyclictest1176977-21kworker/u16:0+events_unbound09:03:434
997467991715,2cyclictest1156117-21kworker/u16:5+events_unbound09:32:284
997467991715,2cyclictest1147722-21kworker/u16:1+events_unbound08:25:284
997467991715,2cyclictest1020628-21kworker/u16:4+events_unbound07:44:044
997475991612,3cyclictest1302-21snmpd11:51:017
997473991614,2cyclictest1089265-21kworker/u16:3+flush-8:008:13:306
997473991614,2cyclictest1006887-21kworker/u16:2+events_unbound07:35:526
997469991614,2cyclictest1156117-21kworker/u16:5+flush-8:009:10:125
997469991613,2cyclictest1156117-21kworker/u16:5+flush-8:008:30:195
997469991612,3cyclictest1020718-21latency_hist07:19:545
997467991615,1cyclictest0-21swapper/411:35:184
997467991614,2cyclictest968138-21kworker/u16:0+events_unbound07:14:364
997467991614,2cyclictest1383811-21kworker/u16:0+events_unbound10:31:124
997467991614,2cyclictest1257376-21kworker/u16:0+events_unbound09:21:284
997467991614,2cyclictest1147722-21kworker/u16:1+events_unbound08:32:364
997467991613,2cyclictest5955-21gsd-housekeepin11:48:004
15047102160,0sleep71504709-21rm10:55:537
997475991512,2cyclictest1297191-21ssh09:34:557
997475991511,3cyclictest1302-21snmpd07:23:477
997469991511,3cyclictest1236752-21kworker/u16:1+flush-8:009:28:095
997467991513,2cyclictest1346743-21kworker/u16:3+events_unbound09:56:564
997467991513,2cyclictest1107368-21kworker/u16:4+events_unbound08:45:304
997467991513,2cyclictest1107368-21kworker/u16:4+events_unbound08:37:394
997467991513,2cyclictest1107368-21kworker/u16:4+events_unbound08:37:394
997467991513,2cyclictest1020586-21packagekitd07:18:594
997467991513,2cyclictest1006887-21kworker/u16:2+events_unbound07:45:074
99747599149,4cyclictest1322856-21cat09:45:107
99747599149,4cyclictest1302-21snmpd07:35:457
997475991413,0cyclictest0-21swapper/711:48:377
997469991413,1cyclictest0-21swapper/512:35:515
997469991413,1cyclictest0-21swapper/509:44:575
997469991412,2cyclictest1236752-21kworker/u16:1+flush-8:009:35:165
997469991412,2cyclictest1156117-21kworker/u16:5+events_unbound09:30:065
997469991412,2cyclictest1089265-21kworker/u16:3+flush-8:008:14:485
99746999140,14cyclictest0-21swapper/512:22:375
99746999140,14cyclictest0-21swapper/510:14:265
997467991412,2cyclictest1615723-21kworker/u16:0+events_unbound12:04:354
997467991412,2cyclictest1089265-21kworker/u16:3+events_unbound08:08:364
997467991412,2cyclictest1037291-21kworker/u16:0+events_unbound07:25:194
99746799140,14cyclictest0-21swapper/411:51:424
99746799140,14cyclictest0-21swapper/408:20:164
99747599139,3cyclictest1302-21snmpd09:51:127
99747599139,3cyclictest1302-21snmpd09:13:267
99747599139,3cyclictest1302-21snmpd07:48:577
997475991312,0cyclictest0-21swapper/712:26:097
997475991311,1cyclictest0-21swapper/709:59:527
997475991311,1cyclictest0-21swapper/709:05:237
997475991310,2cyclictest0-21swapper/710:30:037
997475991310,2cyclictest0-21swapper/709:30:057
99747599130,3cyclictest1591815-21ssh11:31:557
99747599130,12cyclictest1704788-21turbostat12:19:527
99747599130,11cyclictest1302-21snmpd12:30:057
997469991312,1cyclictest0-21swapper/511:36:535
997469991312,1cyclictest0-21swapper/511:29:385
997469991312,1cyclictest0-21swapper/510:16:195
997469991311,2cyclictest1503782-21kworker/u16:3+events_unbound12:04:235
99746999130,13cyclictest0-21swapper/511:22:515
99746999130,13cyclictest0-21swapper/510:53:515
997467991311,2cyclictest1342469-21kworker/u16:1+events_unbound10:02:404
997467991311,2cyclictest1156117-21kworker/u16:5+events_unbound09:07:044
997467991311,2cyclictest1132417-21kworker/u16:0+events_unbound08:17:224
997467991311,2cyclictest1006887-21kworker/u16:2+events_unbound07:20:044
99746799130,13cyclictest0-21swapper/410:53:314
99747599129,2cyclictest0-21swapper/710:00:207
99747599128,3cyclictest1302-21snmpd09:16:537
99747599128,3cyclictest1302-21snmpd08:23:407
99747599128,3cyclictest1302-21snmpd08:18:077
99747599128,3cyclictest1302-21snmpd08:01:487
99747599128,3cyclictest1302-21snmpd07:13:267
99747599127,4cyclictest1706091-21cat12:20:087
997475991210,1cyclictest1458145-21ssh10:40:027
997475991210,1cyclictest1458145-21ssh10:40:027
99747599120,2cyclictest1491475-21ntpq10:50:217
99747599120,2cyclictest1156120-21ntpq08:25:197
99747599120,2cyclictest1097667-21ntpq07:55:217
99747599120,11cyclictest1080350-21cat07:50:107
99746999120,1cyclictest0-21swapper/508:04:215
99746999120,11cyclictest0-21swapper/509:00:015
997467991210,2cyclictest1371248-21kworker/u16:4+events_unbound10:08:264
997467991210,2cyclictest1020628-21kworker/u16:4+events_unbound07:39:394
997467991210,2cyclictest1020618-21kworker/u16:3+events_unbound07:34:444
997467991210,1cyclictest1205834-21sleep08:54:534
99747599119,1cyclictest0-21swapper/711:20:097
99747599118,2cyclictest1302-21snmpd12:07:557
99747599118,2cyclictest1302-21snmpd11:57:407
99747599118,2cyclictest1302-21snmpd11:06:547
99747599118,2cyclictest0-21swapper/711:29:537
99747599118,2cyclictest0-21swapper/708:10:097
99747599117,3cyclictest1409499-21cat10:20:097
99747599117,3cyclictest1302-21snmpd11:34:577
99747599117,3cyclictest1302-21snmpd08:55:147
99747599117,3cyclictest1302-21snmpd07:27:177
99747599116,4cyclictest1542364-21ssh11:11:577
99747599116,4cyclictest1158231-21cat08:30:067
99747599115,5cyclictest6233-21gvfs-afc-volume10:44:587
99747599110,9cyclictest1189857-21kthreadcore08:45:137
99747599110,2cyclictest1371432-21ssh10:04:577
99747599110,2cyclictest1067878-21kthreadcore07:40:167
99747599110,1cyclictest1665511-21ssh12:01:007
99747599110,10cyclictest1302-21snmpd12:13:327
99747599110,10cyclictest1302-21snmpd09:24:417
99746999117,3cyclictest1089140-21cat07:54:535
997469991110,1cyclictest0-21swapper/511:56:175
997469991110,1cyclictest0-21swapper/511:49:305
997469991110,1cyclictest0-21swapper/511:01:345
99746999110,1cyclictest0-21swapper/508:57:585
99746799119,2cyclictest1739339-21kworker/u16:2+events_unbound12:38:294
99746799119,2cyclictest1156117-21kworker/u16:5+events_unbound08:58:084
99746799119,2cyclictest1006887-21kworker/u16:2+events_unbound07:59:394
99746799119,2cyclictest1006887-21kworker/u16:2+events_unbound07:51:124
99746799119,1cyclictest1108364-21awk08:04:534
99747599108,1cyclictest0-21swapper/708:50:127
99747599106,3cyclictest1615732-21sh11:40:297
99747599106,3cyclictest1302-21snmpd10:10:377
99747599105,4cyclictest1167985-21cat08:35:097
99747599105,4cyclictest1167985-21cat08:35:097
99747599104,5cyclictest6233-21gvfs-afc-volume08:05:087
99746999109,1cyclictest0-21swapper/512:07:575
99746999109,1cyclictest0-21swapper/510:55:165
99746999109,1cyclictest0-21swapper/509:09:195
99746999109,1cyclictest0-21swapper/508:41:535
99746999109,1cyclictest0-21swapper/508:41:535
99746999109,1cyclictest0-21swapper/508:09:435
99746999109,1cyclictest0-21swapper/507:57:535
99746999109,1cyclictest0-21swapper/507:24:565
99746999100,10cyclictest0-21swapper/508:23:265
99746999100,10cyclictest0-21swapper/507:39:175
99746999100,10cyclictest0-21swapper/507:13:165
99746799108,2cyclictest1176977-21kworker/u16:0+events_unbound08:41:164
99746799108,2cyclictest1176977-21kworker/u16:0+events_unbound08:41:164
9974759994,4cyclictest1742467-21cat12:35:067
9974699998,1cyclictest0-21swapper/508:16:015
9974699990,9cyclictest0-21swapper/510:04:105
9974699987,1cyclictest0-21swapper/511:16:335
9974699987,1cyclictest0-21swapper/509:50:185
9974699987,1cyclictest0-21swapper/507:20:415
9974699986,1cyclictest0-21swapper/507:49:535
9974699985,2cyclictest1346743-21kworker/u16:3+flush-8:010:29:535
9974699985,2cyclictest1069441-21perf07:44:535
9974699980,4cyclictest0-21swapper/509:19:535
9974699976,1cyclictest0-21swapper/512:31:555
9974699976,1cyclictest0-21swapper/512:13:475
9974699975,2cyclictest14250irq/27-ahci[0000:00:1f.2]12:28:045
9974699975,1cyclictest0-21swapper/512:19:525
9974699973,3cyclictest1050195-21cut07:34:535
9974699970,7cyclictest0-21swapper/510:07:005
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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