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2026-09-22 - 10:56
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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 Tue Sep 22, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19656625545,7sleep40-21swapper/419:07:144
19640025218,29sleep70-21swapper/719:04:527
5428652440,0sleep60-21swapper/621:54:146
19656724434,7sleep50-21swapper/519:07:155
196987993634,2cyclictest424432-21kworker/u16:1+events_unbound22:09:144
196995993532,2cyclictest404668-21kworker/u16:0+flush-8:021:59:146
196987993531,3cyclictest591746-21kworker/u16:3+events_unbound22:59:334
196987993432,2cyclictest494337-21kworker/u16:2+flush-8:000:27:524
196987993331,2cyclictest494337-21kworker/u16:2+flush-8:000:04:484
196987993331,2cyclictest230319-21kworker/u16:2+flush-8:020:24:144
196997993228,3cyclictest126-21kswapd000:29:137
196987993230,2cyclictest857931-21kworker/u16:5+events_unbound00:11:244
1964822329,8sleep60-21swapper/619:06:046
196995993129,2cyclictest811810-21kworker/u16:1+flush-8:023:49:336
196995993129,2cyclictest811810-21kworker/u16:1+flush-8:023:49:336
196987993129,2cyclictest494337-21kworker/u16:2+events_unbound21:37:524
196987993129,2cyclictest424432-21kworker/u16:1+events_unbound21:59:494
196987992927,2cyclictest424432-21kworker/u16:1+events_unbound21:14:094
196987992927,2cyclictest404668-21kworker/u16:0+events_unbound23:48:254
196987992927,2cyclictest404668-21kworker/u16:0+events_unbound22:27:564
8201302280,1chrt820128-21ssh23:46:267
196987992725,2cyclictest857931-21kworker/u16:5+flush-8:000:15:244
196987992725,2cyclictest424432-21kworker/u16:1+events_unbound21:18:254
196997992620,5cyclictest229935-21latency_hist19:24:147
196994992622,3cyclictest404668-21kworker/u16:0+flush-8:022:39:405
196987992624,2cyclictest833551-21kworker/u16:3+flush-8:023:54:484
196987992624,2cyclictest494337-21kworker/u16:2+events_unbound22:36:414
196987992624,2cyclictest494337-21kworker/u16:2+events_unbound22:23:244
196987992623,2cyclictest404668-21kworker/u16:0+flush-8:021:44:254
7625262250,1chrt762529-21sh23:24:317
196987992523,2cyclictest846142-21kworker/u16:4+events_unbound00:00:124
196987992523,2cyclictest424432-21kworker/u16:1+events_unbound22:13:404
196987992523,2cyclictest230319-21kworker/u16:2+flush-8:019:29:094
196987992523,2cyclictest179793-21kworker/u16:0+flush-8:019:57:534
196987992422,2cyclictest797435-21kworker/u16:3+events_unbound23:43:374
196987992422,2cyclictest494337-21kworker/u16:2+flush-8:022:59:094
196987992422,2cyclictest494337-21kworker/u16:2+events_unbound00:23:244
196995992320,2cyclictest230319-21kworker/u16:2+flush-8:020:09:156
196987992321,2cyclictest591746-21kworker/u16:3+events_unbound23:21:174
196987992321,2cyclictest404668-21kworker/u16:0+flush-8:021:30:004
196987992320,2cyclictest404668-21kworker/u16:0+flush-8:023:34:204
196987992220,2cyclictest857931-21kworker/u16:5+events_unbound00:29:174
196987992220,2cyclictest456810-21kworker/u16:3+flush-8:021:24:354
196987992119,2cyclictest857931-21kworker/u16:5+events_unbound00:36:594
196987992119,2cyclictest591746-21kworker/u16:3+events_unbound23:16:454
196987992119,2cyclictest404668-21kworker/u16:0+events_unbound22:46:044
196987992119,2cyclictest179793-21kworker/u16:0+events_unbound19:49:104
196987992018,2cyclictest591746-21kworker/u16:3+events_unbound23:11:174
196987992018,2cyclictest591746-21kworker/u16:3+events_unbound23:11:174
196987992018,2cyclictest494337-21kworker/u16:2+events_unbound21:56:454
196987992018,2cyclictest404668-21kworker/u16:0+events_unbound21:51:014
196987992018,2cyclictest230319-21kworker/u16:2+flush-8:020:59:394
196987992018,2cyclictest230319-21kworker/u16:2+events_unbound20:40:254
196987992017,2cyclictest404668-21kworker/u16:0+flush-8:022:14:154
196987992017,2cyclictest404668-21kworker/u16:0+events_unbound22:41:214
19699799190,17cyclictest685308-21ssh22:49:377
196987991917,2cyclictest761113-21kworker/u16:1+events_unbound23:28:424
196987991917,2cyclictest591746-21kworker/u16:3+events_unbound23:09:084
196987991917,2cyclictest404668-21kworker/u16:0+flush-8:021:20:004
196987991917,2cyclictest230319-21kworker/u16:2+flush-8:020:34:454
19699799180,17cyclictest0-21swapper/722:39:387
196995991816,2cyclictest404668-21kworker/u16:0+flush-8:022:44:296
196987991816,2cyclictest637835-21kworker/u16:1+flush-8:022:32:404
196987991816,2cyclictest637835-21kworker/u16:1+flush-8:022:32:404
196987991816,2cyclictest494337-21kworker/u16:2+events_unbound23:32:134
196987991816,2cyclictest404668-21kworker/u16:0+events_unbound21:42:494
19699799176,3cyclictest6398-21gmain19:29:367
196997991711,5cyclictest645-21systemd-journal00:19:147
19699799170,15cyclictest1274-21snmpd22:30:047
19699799170,15cyclictest1274-21snmpd22:30:047
196995991715,2cyclictest424432-21kworker/u16:1+flush-8:022:09:326
196995991714,2cyclictest404668-21kworker/u16:0+flush-8:023:44:316
19699799169,6cyclictest1274-21snmpd22:09:427
19699799167,2cyclictest1234-21tuned-ppd19:34:287
19699799164,6cyclictest6337-21gmain21:29:047
19699799161,2cyclictest442833-21ssh21:09:407
196997991612,3cyclictest1274-21snmpd22:56:107
19699799160,14cyclictest0-21swapper/722:14:397
196995991614,2cyclictest404668-21kworker/u16:0+flush-8:021:44:196
196987991614,2cyclictest494337-21kworker/u16:2+flush-8:022:49:484
19699799159,5cyclictest1274-21snmpd21:02:537
19699799157,3cyclictest5997-21gmain20:24:127
19699799156,3cyclictest5997-21gmain23:43:367
19699799156,2cyclictest6050-21gmain23:19:287
196997991512,2cyclictest126-21kswapd022:08:317
196997991512,2cyclictest0-21swapper/719:09:387
19699799150,13cyclictest0-21swapper/721:19:407
196995991514,1cyclictest0-21swapper/622:04:586
19699599150,2cyclictest0-21swapper/600:37:446
19699599150,1cyclictest0-21swapper/622:15:226
19699599150,15cyclictest0-21swapper/620:49:276
19699599150,0cyclictest0-21swapper/600:29:236
196987991513,2cyclictest404668-21kworker/u16:0+events_unbound23:50:124
196987991513,2cyclictest404668-21kworker/u16:0+events_unbound23:50:124
196987991513,2cyclictest157430-21kworker/u16:1+flush-8:019:09:444
19699799148,5cyclictest1274-21snmpd20:27:317
19699799148,5cyclictest1274-21snmpd20:27:317
19699799147,6cyclictest239663-21latency_hist19:29:147
19699799147,5cyclictest1274-21snmpd00:11:487
19699799146,3cyclictest6337-21gmain20:10:287
19699799145,3cyclictest6050-21gmain23:31:287
19699799140,1cyclictest0-21swapper/722:59:387
19699799140,1cyclictest0-21swapper/721:39:397
19699799140,1cyclictest0-21swapper/720:04:407
19699799140,13cyclictest1274-21snmpd20:35:407
19699799140,13cyclictest0-21swapper/721:59:407
19699799140,13cyclictest0-21swapper/721:15:517
196995991413,1cyclictest0-21swapper/622:36:116
196995991412,2cyclictest230319-21kworker/u16:2+events_unbound20:59:146
196995991412,1cyclictest230454-21/usr/sbin/munin19:24:286
196995991411,2cyclictest447572-21uname21:14:316
19699599140,14cyclictest0-21swapper/622:01:496
196994991413,1cyclictest0-21swapper/523:15:385
196994991413,1cyclictest0-21swapper/523:04:085
196994991413,1cyclictest0-21swapper/500:34:285
19699499140,1cyclictest0-21swapper/519:39:395
19699499140,1cyclictest0-21swapper/519:39:395
19699499140,14cyclictest0-21swapper/522:10:415
19699499140,14cyclictest0-21swapper/521:37:445
19699499140,14cyclictest0-21swapper/500:18:425
196987991412,2cyclictest230319-21kworker/u16:2+flush-8:021:04:324
196987991412,2cyclictest179793-21kworker/u16:0+events_unbound19:19:444
19699799139,3cyclictest1274-21snmpd21:31:267
19699799139,3cyclictest1274-21snmpd21:07:027
19699799139,3cyclictest1274-21snmpd20:03:167
19699799139,3cyclictest1274-21snmpd00:04:277
19699799137,5cyclictest5923-21gmain19:54:367
196997991313,0cyclictest0-21swapper/722:45:147
196997991311,1cyclictest0-21swapper/723:09:377
196997991311,1cyclictest0-21swapper/723:09:377
19699599135,7cyclictest0-21swapper/620:34:366
196995991312,1cyclictest0-21swapper/623:57:516
196995991312,1cyclictest0-21swapper/623:42:436
196995991312,1cyclictest0-21swapper/622:49:256
196995991312,1cyclictest0-21swapper/622:25:466
196995991312,1cyclictest0-21swapper/600:13:096
196995991312,1cyclictest0-21swapper/600:04:476
196995991311,2cyclictest404668-21kworker/u16:0+events_unbound21:34:276
196995991311,2cyclictest375764-21kworker/u16:3+flush-8:020:39:546
19699599130,13cyclictest0-21swapper/622:43:266
19699599130,13cyclictest0-21swapper/621:39:166
19699599130,0cyclictest0-21swapper/623:34:036
19699599130,0cyclictest0-21swapper/622:22:376
19699499138,4cyclictest299103-21cat19:59:335
196994991312,1cyclictest0-21swapper/522:57:125
196994991312,1cyclictest0-21swapper/522:24:435
196994991312,1cyclictest0-21swapper/522:17:565
196994991312,1cyclictest0-21swapper/521:15:405
196994991312,1cyclictest0-21swapper/519:55:245
196994991312,1cyclictest0-21swapper/500:01:315
19699499130,13cyclictest0-21swapper/521:09:495
19699499130,0cyclictest0-21swapper/523:21:105
196987991311,2cyclictest375764-21kworker/u16:3+events_unbound20:46:264
196987991311,2cyclictest230319-21kworker/u16:2+events_unbound19:38:244
19699799129,2cyclictest1274-21snmpd23:57:357
19699799129,2cyclictest1274-21snmpd20:40:137
19699799129,2cyclictest1274-21snmpd00:37:407
19699799129,2cyclictest1274-21snmpd00:03:457
19699799128,3cyclictest1274-21snmpd23:49:327
19699799128,3cyclictest1274-21snmpd23:49:327
19699799128,3cyclictest1274-21snmpd23:07:587
19699799128,3cyclictest1274-21snmpd21:44:387
19699799126,5cyclictest6241-21gvfs-afc-volume20:54:417
19699799125,2cyclictest1234-21tuned-ppd21:37:177
19699799125,2cyclictest1213-21tuned23:37:067
19699799125,2cyclictest1213-21tuned23:15:217
196997991211,0cyclictest0-21swapper/720:16:157
19699799120,3cyclictest553889-21rm21:57:077
19699799120,2cyclictest930205-21ssh00:33:297
196995991211,1cyclictest0-21swapper/623:29:006
196995991211,1cyclictest0-21swapper/623:14:206
196995991211,1cyclictest0-21swapper/623:03:466
196995991211,1cyclictest0-21swapper/622:56:506
196995991211,1cyclictest0-21swapper/621:26:396
196995991211,1cyclictest0-21swapper/620:32:256
196995991211,1cyclictest0-21swapper/620:00:066
196995991211,1cyclictest0-21swapper/619:44:106
196995991211,1cyclictest0-21swapper/619:44:106
196995991210,1cyclictest0-21swapper/620:09:246
19699599120,1cyclictest0-21swapper/621:00:296
19699599120,1cyclictest0-21swapper/620:15:236
19699599120,1cyclictest0-21swapper/619:34:356
19699599120,12cyclictest0-21swapper/620:21:516
19699599120,11cyclictest279394-21expr19:49:266
19699499128,3cyclictest665475-21cat22:44:305
196994991211,1cyclictest0-21swapper/523:39:275
196994991211,1cyclictest0-21swapper/523:34:535
196994991211,1cyclictest0-21swapper/522:00:175
196994991211,1cyclictest0-21swapper/521:57:075
196994991211,1cyclictest0-21swapper/500:26:355
196994991211,1cyclictest0-21swapper/500:08:565
19699499120,12cyclictest0-21swapper/520:53:545
19699499120,12cyclictest0-21swapper/519:32:045
19699499120,12cyclictest0-21swapper/519:18:315
196987991211,1cyclictest0-21swapper/420:09:284
196987991211,1cyclictest0-21swapper/420:03:014
196987991210,2cyclictest230319-21kworker/u16:2+events_unbound20:50:254
19699799118,2cyclictest1274-21snmpd20:49:167
19699799117,3cyclictest5923-21gmain22:19:367
19699799115,5cyclictest905-21dbus-daemon19:14:157
19699799115,5cyclictest627738-21latency_hist22:29:147
19699799115,4cyclictest278514-21pluginstate19:49:147
19699799114,2cyclictest1234-21tuned-ppd00:19:347
19699799110,10cyclictest1274-21snmpd20:44:377
19699599116,4cyclictest788796-21grep23:34:316
19699599112,8cyclictest883056-21cstates00:14:286
19699599112,3cyclictest757282-21cut23:19:366
196995991110,1cyclictest0-21swapper/623:04:166
196995991110,1cyclictest0-21swapper/621:32:576
196995991110,1cyclictest0-21swapper/621:11:506
196995991110,1cyclictest0-21swapper/621:09:096
196995991110,1cyclictest0-21swapper/600:21:026
19699599110,10cyclictest628878-21fschecks_count22:29:316
19699599110,10cyclictest628878-21fschecks_count22:29:316
19699599110,0cyclictest0-21swapper/620:27:226
19699599110,0cyclictest0-21swapper/620:27:226
196994991110,1cyclictest0-21swapper/522:49:195
196994991110,1cyclictest0-21swapper/522:31:585
196994991110,1cyclictest0-21swapper/522:31:585
196994991110,1cyclictest0-21swapper/521:50:215
196994991110,1cyclictest0-21swapper/521:47:115
196994991110,1cyclictest0-21swapper/521:44:025
196994991110,1cyclictest0-21swapper/520:27:155
196994991110,1cyclictest0-21swapper/520:27:155
196994991110,1cyclictest0-21swapper/520:17:105
196994991110,1cyclictest0-21swapper/520:06:365
19699499110,11cyclictest0-21swapper/520:37:215
19699499110,0cyclictest0-21swapper/520:48:235
19698799119,2cyclictest307898-21kworker/u16:1+events_unbound20:29:384
19698799110,1cyclictest0-21swapper/420:28:244
19698799110,1cyclictest0-21swapper/420:28:244
19698799110,11cyclictest0-21swapper/419:41:534
19698799110,11cyclictest0-21swapper/419:41:534
19699799107,2cyclictest1274-21snmpd20:31:407
19699799105,4cyclictest534608-21cat21:49:327
19699799105,4cyclictest1274-21snmpd19:49:217
196997991010,0cyclictest0-21swapper/722:34:507
19699599106,3cyclictest461757-21kthreadcore21:19:336
19699599103,2cyclictest911645-21kthreadcore00:24:346
19699599100,9cyclictest846574-21cat23:59:286
19699599100,8cyclictest220703-21cat19:19:266
19699599100,3cyclictest387992-21cut20:44:326
19699499109,1cyclictest0-21swapper/523:25:155
19699499109,1cyclictest0-21swapper/522:07:035
19699499109,1cyclictest0-21swapper/521:24:395
19699499109,1cyclictest0-21swapper/521:05:445
19699499109,1cyclictest0-21swapper/520:58:285
19699499109,1cyclictest0-21swapper/520:42:235
19699499109,1cyclictest0-21swapper/520:31:505
19699499101,9cyclictest0-21swapper/523:54:285
1969979993,5cyclictest6241-21gvfs-afc-volume19:39:367
1969979993,5cyclictest6241-21gvfs-afc-volume19:39:367
1969959990,8cyclictest730098-21kthreadcore23:09:336
1969959990,8cyclictest730098-21kthreadcore23:09:336
1969959990,4cyclictest297725-21pool-NetworkMan19:56:246
1969959990,3cyclictest198110-21irqcore19:09:326
1969959990,2cyclictest243061-21tr19:29:346
1969949998,1cyclictest0-21swapper/523:54:075
1969949998,1cyclictest0-21swapper/523:54:075
1969949998,1cyclictest0-21swapper/522:39:135
1969949998,1cyclictest0-21swapper/521:30:575
1969949998,1cyclictest0-21swapper/520:11:395
1969879998,1cyclictest0-21swapper/420:57:534
1969879997,2cyclictest205679-21kworker/u16:3+flush-8:019:29:434
1969879997,2cyclictest157430-21kworker/u16:1+flush-8:019:14:304
1969879990,8cyclictest282230-21kthreadcore19:49:324
1969959983,4cyclictest215679-21tr19:14:346
1969959980,3cyclictest269686-21sh19:44:276
1969949984,3cyclictest870456-21cpu00:09:275
1969949984,3cyclictest774516-21cat23:29:305
1969949984,3cyclictest415242-21diskstats20:59:295
1969949983,4cyclictest926605-21grep00:29:375
1969949983,4cyclictest903499-21cut00:19:415
1969949983,4cyclictest604043-21wc22:19:255
1969949983,4cyclictest338411-21cut20:19:315
1969949983,4cyclictest283167-21tr19:49:325
1969949983,4cyclictest270690-21cut19:44:315
1969949983,4cyclictest199149-21grep19:09:335
1969949980,4cyclictest816723-21grep23:44:345
1969879987,1cyclictest0-21swapper/420:15:284
1969879980,3cyclictest314942-21kthreadcore20:04:364
1969949975,1cyclictest0-21swapper/523:09:305
1969949975,1cyclictest0-21swapper/523:09:305
1969949975,1cyclictest0-21swapper/523:04:335
1969949973,3cyclictest250524-21cat19:34:315
1969949973,3cyclictest220949-21expr19:19:265
1969949972,4cyclictest459234-21gltestperf21:19:295
1969949972,4cyclictest230642-21cat19:24:285
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