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2026-06-11 - 01:52
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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 Thu Jun 11, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
591515996260,2cyclictest1087690-21kworker/u16:4+events_unbound23:06:425
591515996260,2cyclictest1087690-21kworker/u16:4+events_unbound23:06:425
591515996159,2cyclictest1257984-21kworker/u16:5+flush-8:000:06:375
591515995351,2cyclictest1173952-21kworker/u16:2+events_unbound23:41:435
591515995350,2cyclictest1101201-21kworker/u16:0+flush-8:023:26:415
591515994947,2cyclictest945872-21kworker/u16:2+flush-8:022:06:425
59110624938,8sleep50-21swapper/519:04:235
591515994745,2cyclictest1087690-21kworker/u16:4+flush-8:023:01:245
591515994442,2cyclictest1257984-21kworker/u16:5+flush-8:000:16:415
591515994441,2cyclictest980062-21kworker/u16:3+events_unbound22:11:145
591515994341,2cyclictest796679-21kworker/u16:3+events_unbound21:55:585
591515994341,2cyclictest613568-21kworker/u16:0+events_unbound19:16:145
591515994240,2cyclictest1126422-21kworker/u16:1+flush-8:023:31:415
5909602424,32sleep70-21swapper/719:02:167
591515994139,2cyclictest1173952-21kworker/u16:2+flush-8:000:11:425
591515994139,2cyclictest1126422-21kworker/u16:1+events_unbound23:24:535
591515994138,2cyclictest919630-21kworker/u16:0+flush-8:022:26:455
591515994038,2cyclictest1026924-21kworker/u16:2+events_unbound22:41:365
591524993932,6cyclictest796891-21latency_hist20:51:127
591515993937,2cyclictest768476-21kworker/u16:1+events_unbound22:37:435
591515993937,2cyclictest768476-21kworker/u16:1+events_unbound22:04:305
591515993937,2cyclictest1234042-21kworker/u16:4+flush-8:000:01:325
591515993937,2cyclictest1101201-21kworker/u16:0+flush-8:023:16:415
591515993936,2cyclictest671820-21kworker/u16:2+events_unbound20:46:145
591515993735,2cyclictest980062-21kworker/u16:3+events_unbound22:19:375
591515993735,2cyclictest919630-21kworker/u16:0+flush-8:021:47:175
591515993735,2cyclictest919630-21kworker/u16:0+flush-8:021:47:175
591515993735,2cyclictest919630-21kworker/u16:0+events_unbound22:22:305
591515993735,2cyclictest919630-21kworker/u16:0+events_unbound21:58:385
591515993735,2cyclictest768476-21kworker/u16:1+events_unbound21:32:505
591515993735,2cyclictest768476-21kworker/u16:1+events_unbound21:22:295
591515993735,2cyclictest1173952-21kworker/u16:2+events_unbound23:59:095
591515993735,2cyclictest1126422-21kworker/u16:1+events_unbound23:14:535
591515993735,2cyclictest1101201-21kworker/u16:0+events_unbound23:53:425
591515993634,2cyclictest768476-21kworker/u16:1+flush-8:021:30:345
591515993634,2cyclictest768476-21kworker/u16:1+events_unbound22:33:415
591515993634,2cyclictest768476-21kworker/u16:1+events_unbound21:37:185
591515993634,2cyclictest768476-21kworker/u16:1+events_unbound21:11:445
591515993634,2cyclictest1173952-21kworker/u16:2+events_unbound00:33:255
591515993634,2cyclictest1173952-21kworker/u16:2+events_unbound00:29:385
591515993634,2cyclictest1173952-21kworker/u16:2+events_unbound00:29:385
591515993533,2cyclictest768476-21kworker/u16:1+events_unbound22:52:385
591515993533,2cyclictest768476-21kworker/u16:1+events_unbound21:08:265
591515993533,2cyclictest768476-21kworker/u16:1+events_unbound21:08:265
591515993533,2cyclictest671820-21kworker/u16:2+events_unbound19:55:505
591515993533,2cyclictest1054362-21kworker/u16:3+events_unbound22:50:455
59113323525,7sleep40-21swapper/419:04:464
591524993427,6cyclictest635-21systemd-journal22:16:127
591515993432,2cyclictest816221-21kworker/u16:4+events_unbound21:18:305
591515993432,2cyclictest1054362-21kworker/u16:3+events_unbound23:49:345
591515993432,2cyclictest1054362-21kworker/u16:3+events_unbound23:49:345
591515993331,2cyclictest768476-21kworker/u16:1+flush-8:021:42:025
591515993331,2cyclictest671820-21kworker/u16:2+flush-8:020:36:325
591515993331,2cyclictest1173952-21kworker/u16:2+events_unbound23:40:335
59116523323,7sleep60-21swapper/619:05:126
591515993230,2cyclictest768476-21kworker/u16:1+flush-8:022:57:535
591515993230,2cyclictest652514-21kworker/u16:0+flush-8:019:36:395
591515993230,2cyclictest1173952-21kworker/u16:2+flush-8:000:22:255
591515993028,2cyclictest768476-21kworker/u16:1+events_unbound20:44:225
591515993028,2cyclictest652514-21kworker/u16:0+events_unbound19:57:225
591524992928,0cyclictest0-21swapper/719:06:357
591524992924,4cyclictest1329942-21latency_hist00:36:127
591515992926,2cyclictest671820-21kworker/u16:2+events_unbound20:06:145
591520992826,2cyclictest700882-21kworker/u16:4+events_unbound20:24:386
591515992826,2cyclictest768476-21kworker/u16:1+events_unbound21:03:225
591524992726,0cyclictest0-21swapper/721:46:377
591524992726,0cyclictest0-21swapper/721:46:377
591520992725,2cyclictest671820-21kworker/u16:2+events_unbound20:15:466
591520992725,2cyclictest1087690-21kworker/u16:4+flush-8:023:03:456
591515992725,2cyclictest652514-21kworker/u16:0+events_unbound20:01:215
12799492270,1sleep40-21swapper/400:12:094
12595182270,0chrt1259519-21irqcore00:06:277
591524992621,4cyclictest825784-21latency_hist21:06:127
591520992624,2cyclictest571932-21kworker/u16:1+events_unbound19:44:176
591520992624,2cyclictest1173952-21kworker/u16:2+events_unbound00:28:246
591520992624,2cyclictest1173952-21kworker/u16:2+events_unbound00:28:246
591520992624,2cyclictest1101201-21kworker/u16:0+events_unbound23:14:006
591515992624,2cyclictest700882-21kworker/u16:4+events_unbound20:24:505
591515992624,2cyclictest671820-21kworker/u16:2+flush-8:020:26:135
591515992624,2cyclictest671820-21kworker/u16:2+events_unbound20:57:145
591515992624,2cyclictest613568-21kworker/u16:0+events_unbound19:13:515
591515992624,2cyclictest571932-21kworker/u16:1+events_unbound19:36:025
591512992624,2cyclictest671820-21kworker/u16:2+flush-8:020:16:384
11011312260,1chrt1101129-21ssh22:59:357
591524992524,0cyclictest0-21swapper/720:51:307
591524992520,4cyclictest1197916-21latency_hist23:41:127
591515992523,2cyclictest671820-21kworker/u16:2+events_unbound20:13:515
591515992523,2cyclictest652514-21kworker/u16:0+events_unbound20:34:505
591520992422,2cyclictest796679-21kworker/u16:3+events_unbound20:50:496
591520992422,2cyclictest571932-21kworker/u16:1+events_unbound19:55:296
591515992422,2cyclictest671820-21kworker/u16:2+events_unbound19:44:225
591524992322,0cyclictest0-21swapper/719:31:387
591520992321,2cyclictest919630-21kworker/u16:0+events_unbound22:32:056
591520992321,2cyclictest796679-21kworker/u16:3+events_unbound21:22:446
591520992321,2cyclictest671820-21kworker/u16:2+events_unbound20:16:276
591520992321,2cyclictest571932-21kworker/u16:1+events_unbound19:30:066
591515992321,2cyclictest768476-21kworker/u16:1+flush-8:020:53:225
591515992321,2cyclictest671820-21kworker/u16:2+flush-8:019:49:225
591515992321,2cyclictest671820-21kworker/u16:2+flush-8:019:49:225
591512992321,2cyclictest537523-21kworker/u16:3+events_unbound19:11:154
591524992217,4cyclictest1233912-21latency_hist23:56:127
591520992220,2cyclictest768476-21kworker/u16:1+flush-8:021:36:466
591520992220,2cyclictest700596-21kworker/u16:3+events_unbound20:39:296
591520992220,2cyclictest671820-21kworker/u16:2+events_unbound20:45:056
591520992220,2cyclictest671820-21kworker/u16:2+events_unbound20:08:296
591520992220,2cyclictest571932-21kworker/u16:1+events_unbound19:48:426
591520992220,2cyclictest571932-21kworker/u16:1+events_unbound19:48:426
591520992220,2cyclictest537523-21kworker/u16:3+events_unbound19:07:346
591520992220,2cyclictest1054362-21kworker/u16:3+events_unbound23:54:066
591512992219,2cyclictest1173952-21kworker/u16:2+flush-8:000:11:124
591524992116,4cyclictest1257950-21latency_hist00:06:127
591520992119,2cyclictest919630-21kworker/u16:0+events_unbound22:24:006
591520992119,2cyclictest816221-21kworker/u16:4+flush-8:021:01:376
591520992119,2cyclictest1173952-21kworker/u16:2+events_unbound00:22:466
591520992118,2cyclictest796679-21kworker/u16:3+events_unbound21:31:186
591512992118,2cyclictest768476-21kworker/u16:1+flush-8:021:02:104
591524992019,0cyclictest0-21swapper/721:53:147
591524992019,0cyclictest0-21swapper/720:56:277
591524992016,3cyclictest635-21systemd-journal21:41:077
591520992018,2cyclictest700596-21kworker/u16:3+flush-8:020:26:246
591520992018,2cyclictest662177-21kworker/u16:3+events_unbound19:39:456
591520992018,2cyclictest652514-21kworker/u16:0+events_unbound19:35:526
591520992018,2cyclictest326866-21kworker/u16:2+events_unbound19:25:336
591520992017,2cyclictest768476-21kworker/u16:1+events_unbound21:16:196
591515992018,2cyclictest571932-21kworker/u16:1+events_unbound19:30:105
591524991918,0cyclictest0-21swapper/723:35:597
591524991918,0cyclictest0-21swapper/723:26:467
591524991918,0cyclictest0-21swapper/723:12:217
591524991918,0cyclictest0-21swapper/722:32:137
591524991917,1cyclictest844091-21kthreadcore21:11:327
59152499190,17cyclictest858769-21ssh21:16:347
591520991917,2cyclictest1101201-21kworker/u16:0+events_unbound23:09:036
591520991917,2cyclictest1101201-21kworker/u16:0+events_unbound23:09:036
591520991917,2cyclictest1087690-21kworker/u16:4+events_unbound23:21:516
59151299190,19cyclictest0-21swapper/423:07:424
59151299190,19cyclictest0-21swapper/423:07:424
591524991817,0cyclictest0-21swapper/721:07:187
591524991817,0cyclictest0-21swapper/721:07:187
591524991816,1cyclictest0-21swapper/721:31:057
591524991815,2cyclictest920419-21ssh21:43:277
591524991815,2cyclictest1234-21snmpd22:44:517
591524991812,5cyclictest758503-21latency_hist20:31:127
591520991816,2cyclictest796679-21kworker/u16:3+events_unbound21:57:046
591520991816,2cyclictest700596-21kworker/u16:3+events_unbound20:00:366
591520991816,2cyclictest671820-21kworker/u16:2+events_unbound20:33:536
591520991816,2cyclictest571932-21kworker/u16:1+events_unbound19:18:356
591520991816,2cyclictest326866-21kworker/u16:2+events_unbound19:13:026
591520991816,2cyclictest1173952-21kworker/u16:2+events_unbound00:07:086
591524991716,0cyclictest0-21swapper/723:48:477
591524991716,0cyclictest0-21swapper/723:48:477
591524991716,0cyclictest0-21swapper/721:56:457
591524991715,1cyclictest825790-21diskmemload22:08:347
591524991715,1cyclictest1292991-21ssh00:19:137
591524991715,1cyclictest1140279-21kthreadcore23:16:297
59152499171,1cyclictest0-21swapper/720:41:357
591520991715,2cyclictest919630-21kworker/u16:0+flush-8:022:01:376
591520991715,2cyclictest796679-21kworker/u16:3+flush-8:021:06:356
591520991715,2cyclictest796679-21kworker/u16:3+flush-8:021:06:356
591520991715,2cyclictest796679-21kworker/u16:3+events_unbound20:54:146
591520991715,2cyclictest652514-21kworker/u16:0+events_unbound20:01:306
591520991715,2cyclictest1173952-21kworker/u16:2+events_unbound23:36:486
591524991615,0cyclictest0-21swapper/723:57:177
591524991615,0cyclictest0-21swapper/723:22:227
591524991611,4cyclictest1126008-21latency_hist23:11:127
591524991611,4cyclictest1126008-21latency_hist23:11:127
591520991613,2cyclictest980062-21kworker/u16:3+events_unbound22:16:136
591515991614,2cyclictest571932-21kworker/u16:1+events_unbound19:11:035
591512991613,2cyclictest571932-21kworker/u16:1+flush-8:019:07:084
591524991514,0cyclictest0-21swapper/723:42:347
591524991514,0cyclictest0-21swapper/722:16:587
591524991513,1cyclictest825790-21diskmemload22:01:327
591524991513,1cyclictest1015146-21awk22:21:427
591520991513,2cyclictest919630-21kworker/u16:0+flush-8:021:46:406
591520991513,2cyclictest919630-21kworker/u16:0+flush-8:021:46:406
591520991513,2cyclictest796679-21kworker/u16:3+events_unbound20:58:366
591520991513,2cyclictest1257983-21kworker/u16:1+events_unbound00:32:386
59151299150,1cyclictest0-21swapper/421:56:174
591524991413,0cyclictest0-21swapper/722:53:337
591524991413,0cyclictest0-21swapper/722:37:027
591524991413,0cyclictest0-21swapper/722:27:027
591524991413,0cyclictest0-21swapper/721:22:257
591520991413,1cyclictest0-21swapper/600:18:356
591520991412,2cyclictest816221-21kworker/u16:4+events_unbound21:26:356
591520991412,2cyclictest796679-21kworker/u16:3+events_unbound21:13:496
591520991412,2cyclictest1234042-21kworker/u16:4+flush-8:000:05:266
591520991411,2cyclictest1101201-21kworker/u16:0+flush-8:023:31:136
59152099140,1cyclictest0-21swapper/622:44:476
59152099140,1cyclictest0-21swapper/622:18:086
59152099140,14cyclictest0-21swapper/622:58:486
591515991412,2cyclictest700596-21kworker/u16:3+events_unbound20:20:555
591512991413,1cyclictest0-21swapper/423:23:194
591512991413,1cyclictest0-21swapper/421:27:364
591512991413,1cyclictest0-21swapper/400:32:324
591512991413,1cyclictest0-21swapper/400:23:234
59151299140,1cyclictest0-21swapper/422:59:594
59151299140,1cyclictest0-21swapper/422:27:214
59151299140,1cyclictest0-21swapper/421:16:054
59151299140,14cyclictest0-21swapper/423:15:544
59151299140,14cyclictest0-21swapper/422:15:224
59151299140,14cyclictest0-21swapper/422:02:264
59151299140,14cyclictest0-21swapper/400:04:474
59151299140,0cyclictest0-21swapper/423:31:124
59152499139,3cyclictest1234-21snmpd22:50:217
59152499139,3cyclictest1234-21snmpd20:33:057
59152499139,3cyclictest1234-21snmpd20:23:057
59152499139,3cyclictest1234-21snmpd19:40:527
59152499139,3cyclictest1234-21snmpd19:25:557
59152499138,4cyclictest1103252-21cat23:01:257
59152499134,8cyclictest6895-21gmain19:11:257
59152499134,8cyclictest5849-21gmain20:16:297
591524991312,0cyclictest0-21swapper/719:45:467
591524991312,0cyclictest0-21swapper/700:22:057
591524991312,0cyclictest0-21swapper/700:15:227
591524991311,1cyclictest0-21swapper/719:26:277
591520991312,1cyclictest0-21swapper/621:45:496
591520991311,2cyclictest1101201-21kworker/u16:0+events_unbound23:47:086
591520991311,2cyclictest1101201-21kworker/u16:0+events_unbound23:47:086
591520991311,2cyclictest1101201-21kworker/u16:0+events_unbound23:20:156
59152099130,13cyclictest0-21swapper/621:51:486
59152099130,0cyclictest0-21swapper/622:37:506
591512991312,1cyclictest0-21swapper/423:52:014
591512991312,1cyclictest0-21swapper/422:08:544
591512991312,1cyclictest0-21swapper/421:33:074
591512991312,1cyclictest0-21swapper/420:41:334
591512991312,1cyclictest0-21swapper/419:53:474
591512991312,1cyclictest0-21swapper/419:37:234
591512991311,2cyclictest816221-21kworker/u16:4+events_unbound21:36:274
591512991311,2cyclictest796679-21kworker/u16:3+events_unbound21:41:264
59151299130,1cyclictest0-21swapper/420:32:444
59151299130,13cyclictest0-21swapper/422:33:394
59152499129,2cyclictest1234-21snmpd21:33:227
59152499129,1cyclictest0-21swapper/719:51:297
59152499128,3cyclictest6514-21gmain00:27:497
59152499128,3cyclictest6514-21gmain00:27:497
59152499128,3cyclictest1234-21snmpd20:14:567
59152499128,3cyclictest1234-21snmpd19:47:017
59152499128,3cyclictest1234-21snmpd19:47:017
59152499128,3cyclictest1234-21snmpd19:16:307
59152499125,6cyclictest6382-21gvfs-afc-volume19:56:257
591520991210,2cyclictest919630-21kworker/u16:0+events_unbound22:51:186
591520991210,2cyclictest919630-21kworker/u16:0+events_unbound22:29:296
591520991210,2cyclictest1173952-21kworker/u16:2+flush-8:023:43:156
591520991210,2cyclictest1026924-21kworker/u16:2+flush-8:022:47:116
591512991211,1cyclictest0-21swapper/423:41:084
591512991211,1cyclictest0-21swapper/422:52:254
591512991211,1cyclictest0-21swapper/422:40:074
591512991211,1cyclictest0-21swapper/421:50:274
591512991211,1cyclictest0-21swapper/421:50:274
591512991211,1cyclictest0-21swapper/421:21:364
591512991211,1cyclictest0-21swapper/420:56:514
591512991211,1cyclictest0-21swapper/420:24:134
591512991211,1cyclictest0-21swapper/420:05:464
59152499116,4cyclictest776777-21ntpq20:36:387
591524991110,0cyclictest0-21swapper/720:01:157
59152099119,2cyclictest768476-21kworker/u16:1+events_unbound22:11:126
59152099119,2cyclictest1173952-21kworker/u16:2+events_unbound00:11:476
591512991110,1cyclictest0-21swapper/420:50:514
591512991110,1cyclictest0-21swapper/419:22:444
59152499107,2cyclictest1234-21snmpd20:09:117
59152099108,2cyclictest1054362-21kworker/u16:3+events_unbound23:27:146
59151299107,3cyclictest700596-21kworker/u16:3+events_unbound20:26:274
59151299107,2cyclictest768476-21kworker/u16:1+flush-8:022:21:164
5915209997,2cyclictest1054362-21kworker/u16:3+events_unbound23:56:586
5915159997,2cyclictest326866-21kworker/u16:2+events_unbound19:25:355
5915129998,1cyclictest0-21swapper/421:09:564
5915129998,1cyclictest0-21swapper/421:09:564
5915129998,1cyclictest0-21swapper/420:16:104
5915129996,2cyclictest935421-21irqcore21:51:274
5915129996,2cyclictest1011-21lldpd22:46:304
5915129994,4cyclictest637461-21cut19:26:294
5915129990,8cyclictest717130-21kthreadcore20:06:334
5915129986,1cyclictest0-21swapper/419:41:334
5915129985,2cyclictest1056219-21taskset22:41:294
5915129984,3cyclictest672509-21cpuspeed_turbos19:46:244
5915129984,3cyclictest672509-21cpuspeed_turbos19:46:244
5915129984,3cyclictest650960-21kthreadcore19:31:324
5915129983,4cyclictest695671-21cut19:56:324
5915129983,4cyclictest616321-21grep19:16:284
5915129981,1cyclictest0-21swapper/423:42:514
5915129973,3cyclictest798776-21grep20:51:294
5915129973,3cyclictest1-21systemd23:06:114
5915129972,4cyclictest850649-21cat21:16:234
5915129971,1cyclictest0-21swapper/400:19:084
5915129963,2cyclictest12188632sleep423:46:384
5915129963,2cyclictest12188632sleep423:46:384
5915129960,3cyclictest0-21swapper/400:27:044
5915129960,3cyclictest0-21swapper/400:27:044
5915129960,1cyclictest0-21swapper/420:36:534
5915129953,1cyclictest0-21swapper/423:56:154
5915129950,5cyclictest0-21swapper/422:16:164
5915129950,4cyclictest1174368-21chrt23:31:224
5915129950,4cyclictest1011-21lldpd23:16:304
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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