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2026-07-12 - 12:33
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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 rackbslot7.osadl.org (updated Sun Jul 12, 2026 00:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4743991194,29cyclictest352-21runrttasks23:53:570
4242211711,76sleep03245-21/usr/sbin/munin18:53:020
4743991163,27cyclictest352-21runrttasks20:43:520
47439911349,56cyclictest18870-21sh22:02:320
47439911349,56cyclictest18870-21sh22:02:320
4743991134,43cyclictest10701-21apt-get22:42:250
4743991134,43cyclictest10701-21apt-get22:42:250
4743991124,9cyclictest0-21swapper/022:47:230
4743991065,8cyclictest0-21swapper/000:12:240
4743991063,8cyclictest0-21swapper/021:32:250
4743991063,8cyclictest0-21swapper/021:32:250
4743991054,10cyclictest0-21swapper/021:42:280
4743991053,28cyclictest352-21runrttasks21:06:450
4743991053,20cyclictest25932-21seq00:01:390
4743991052,26cyclictest352-21runrttasks21:14:150
4743991045,26cyclictest352-21runrttasks19:48:020
4743991042,43cyclictest30152-21apt-get21:27:230
465521049,66sleep24617-21/usr/sbin/munin18:57:162
4743991023,22cyclictest27721-21seq00:03:170
4747991012,64cyclictest3226-21apt-get00:17:271
4747991012,64cyclictest3226-21apt-get00:17:271
47439910147,48cyclictest4650-21rm22:32:170
47439910147,48cyclictest4650-21rm22:32:170
4743991013,28cyclictest15938-21fschecks_count21:57:320
4743991004,7cyclictest0-21swapper/023:22:240
4743991003,8cyclictest0-21swapper/020:12:300
4743991003,28cyclictest10193-21latency_hist19:12:140
474399995,9cyclictest0-21swapper/022:57:270
474399994,12cyclictest0-21swapper/021:22:400
474399993,31cyclictest12687-21/usr/sbin/munin21:52:500
474399992,30cyclictest27923-21apt-get22:17:250
474399992,30cyclictest27923-21apt-get22:17:250
4743999846,46cyclictest0-21swapper/021:17:490
4743999846,46cyclictest0-21swapper/021:17:490
474399984,10cyclictest0-21swapper/023:37:560
474399983,9cyclictest0-21swapper/021:47:260
474399983,32cyclictest14525-21grep19:22:500
4743999830,61cyclictest0-21swapper/023:32:450
4743999830,61cyclictest0-21swapper/023:32:450
4752999771,17cyclictest2676-21idleruntime-cro00:17:122
474399975,8cyclictest0-21swapper/023:02:290
474399973,34cyclictest3635-21latency_hist20:32:150
474399973,27cyclictest6372-21apt21:42:120
474399968,80cyclictest0-21swapper/019:17:150
474399965,83cyclictest14448-21/usr/sbin/munin23:42:340
474399964,9cyclictest0-21swapper/020:32:240
474399964,32cyclictest1462-21/usr/sbin/munin22:27:450
474399964,32cyclictest1462-21/usr/sbin/munin22:27:450
474399963,27cyclictest352-21runrttasks22:11:220
4743999547,41cyclictest0-21swapper/022:37:490
474399953,15cyclictest16751-21ssh22:52:280
474399953,15cyclictest16751-21ssh22:52:280
474399944,31cyclictest7180-21fschecks_time19:02:370
474399944,31cyclictest7180-21fschecks_time19:02:370
474399943,33cyclictest3203-21/usr/sbin/munin00:17:530
474399943,33cyclictest3203-21/usr/sbin/munin00:17:530
474399943,33cyclictest18455-21/usr/sbin/munin19:37:460
474399943,33cyclictest18455-21/usr/sbin/munin19:37:460
474399943,32cyclictest25713-21sort23:07:220
474399943,31cyclictest6210-21munin-node00:22:240
474399943,30cyclictest352-21runrttasks23:47:570
474399943,30cyclictest352-21runrttasks23:47:570
474399943,30cyclictest32374-21cat00:12:160
474399943,30cyclictest13353-21modprobe19:22:130
474399934,29cyclictest5229-21/usr/sbin/munin23:27:390
474399934,10cyclictest0-21swapper/020:22:270
474399933,32cyclictest20997-21unixbench_multi19:42:500
474399933,30cyclictest28698-21acpi23:12:230
474399933,23cyclictest27525-21apt-config22:17:150
474399933,23cyclictest1149-21/usr/sbin/munin22:27:130
474399924,32cyclictest23900-21grep19:52:450
474399924,10cyclictest0-21swapper/020:38:080
474399923,32cyclictest11948-21latency_hist20:57:150
474399923,30cyclictest28165-21/usr/sbin/munin20:07:370
474399922,10cyclictest11844-21diskmemload20:57:260
4743999210,28cyclictest277-21dbus-daemon20:52:130
4743999210,28cyclictest277-21dbus-daemon20:52:130
4752999116,28cyclictest3677-21ls20:32:162
474399913,31cyclictest5841-21grep18:57:500
474399913,31cyclictest16665-21latency_hist19:32:150
474399913,29cyclictest352-21runrttasks23:21:530
474399913,29cyclictest17092-21fschecks_time19:32:340
474399913,29cyclictest17092-21fschecks_time19:32:340
474399913,28cyclictest31582-21tune2fs20:17:350
474399913,25cyclictest19919-21rm21:09:370
474399913,25cyclictest19919-21rm21:09:370
474399912,28cyclictest24931-21runrttasks19:57:220
474799902,61cyclictest17129-21latency_hist23:47:151
474799893,52cyclictest11477-21apt-get23:37:281
474399893,28cyclictest27114-21proc_pri20:02:440
474399893,28cyclictest27114-21proc_pri20:02:440
4752998816,32cyclictest28509-21ssh21:23:362
4747998857,22cyclictest10926-21latency_hist23:37:151
4747998857,22cyclictest10926-21latency_hist23:37:151
4752998762,17cyclictest352-21runrttasks23:57:462
4752998719,27cyclictest19861-21seq23:51:222
4752998719,27cyclictest19861-21seq23:51:222
4752998623,25cyclictest22724-21seq23:02:262
4752998617,28cyclictest10150-21seq20:51:252
4752998617,28cyclictest10150-21seq20:51:252
4747998661,16cyclictest2374-21systemd-journal00:10:421
475299855,59cyclictest3226-21apt-get00:17:372
475299855,59cyclictest3226-21apt-get00:17:372
4755998313,49cyclictest0-21swapper/300:17:273
4755998313,49cyclictest0-21swapper/300:17:273
4752998313,44cyclictest0-21swapper/223:29:252
4752998216,55cyclictest11072-21kworker/u18:3+flush-179:023:37:402
4752998216,27cyclictest29248-21seq20:08:522
4747998257,16cyclictest17460-21sshd22:11:221
4752998119,23cyclictest6136-21seq19:00:492
4752998118,25cyclictest30928-21seq20:14:522
4752998118,24cyclictest14771-21seq19:24:532
475599806,54cyclictest0-21swapper/323:37:313
4752998019,29cyclictest4999-21seq20:35:462
4752998018,23cyclictest8397-21seq20:45:012
4752997964,8cyclictest0-21swapper/222:48:222
4752997916,25cyclictest16278-21seq19:28:132
4752997915,26cyclictest352-21runrttasks21:52:212
4747997962,10cyclictest26995-21kworker/u17:0-writeback23:27:161
474799793,48cyclictest27960-21ssh22:17:291
474799793,48cyclictest27960-21ssh22:17:291
4752997825,22cyclictest30405-21seq23:14:292
4752997820,18cyclictest21398-21seq22:59:262
4752997819,23cyclictest24621-21seq19:56:492
4752997818,28cyclictest1810-21seq20:26:302
4752997818,28cyclictest13176-21seq19:20:032
4752997818,26cyclictest25945-21seq19:58:112
4752997817,24cyclictest22434-21seq21:13:182
4752997817,23cyclictest6789-21seq20:39:592
4752997815,24cyclictest27523-21seq23:09:472
4747997857,13cyclictest18653-21/usr/sbin/munin22:02:381
4747997857,13cyclictest18653-21/usr/sbin/munin22:02:381
4752997719,24cyclictest32401-21seq20:18:082
4752997718,24cyclictest17782-21seq21:07:062
4752997717,25cyclictest23298-21seq22:09:112
4752997717,25cyclictest19575-21seq19:39:192
4752997717,25cyclictest19575-21seq19:39:192
4752997717,24cyclictest22873-21seq19:50:012
4752997715,25cyclictest32024-21seq21:30:002
4752997655,12cyclictest6367-21kworker/u17:2-nfsiod21:45:372
4752997617,25cyclictest8196-21seq19:06:002
4752997617,25cyclictest8196-21seq19:06:002
4747997657,13cyclictest24178-21timerwakeupswit19:52:491
4747997647,20cyclictest5125-21latency_hist20:37:151
4747997629,30cyclictest11844-21diskmemload23:47:321
4747997629,30cyclictest11844-21diskmemload23:47:321
4755997519,43cyclictest0-21swapper/322:32:283
4755997519,43cyclictest0-21swapper/322:32:283
4752997518,21cyclictest11534-21seq19:14:322
4752997514,26cyclictest0-21swapper/223:33:412
4752997514,26cyclictest0-21swapper/223:33:412
4747997557,9cyclictest0-21swapper/120:12:361
474799752,40cyclictest4716-21apt-get22:32:331
474799752,40cyclictest4716-21apt-get22:32:331
4752997453,14cyclictest4189-21apt-key22:32:142
4752997453,14cyclictest4189-21apt-key22:32:142
4752997450,17cyclictest18844-21proc_pri21:07:462
4752997450,17cyclictest18844-21proc_pri21:07:462
4752997433,30cyclictest4758-21kworker/u19:0+nfsiod00:05:222
4752997420,22cyclictest9963-21seq19:10:032
4752997419,23cyclictest17935-21seq19:33:522
4752997419,23cyclictest17935-21seq19:33:522
4752997418,19cyclictest18288-21seq22:02:022
4752997417,23cyclictest21368-21seq19:46:442
4752997326,36cyclictest381ktimers/223:22:242
4752997320,22cyclictest18970-21seq22:56:012
4752997320,22cyclictest18970-21seq22:56:012
4752997317,25cyclictest13268-21seq22:46:572
4752997317,25cyclictest13268-21seq22:46:572
4752997317,18cyclictest23074-21seq23:57:012
4747997356,11cyclictest6498-21munin-node22:42:361
4747997356,11cyclictest6498-21munin-node22:42:361
4747997355,13cyclictest4729-21cyclictest22:51:461
4747997352,14cyclictest18078-21latency_hist21:07:161
4747997351,13cyclictest0-21swapper/120:52:491
4747997311,27cyclictest5740-21cpu20:38:101
475599727,56cyclictest8863-21chrt19:08:003
4752997254,12cyclictest27627-21apt-key22:17:152
4752997214,22cyclictest352-21runrttasks21:39:572
4752997213,27cyclictest352-21runrttasks20:54:172
4747997256,10cyclictest3603-21latency_hist20:32:151
4747997253,14cyclictest8667-21timerwakeupswit22:37:491
4747997220,37cyclictest31688-21sort23:17:221
475299719,27cyclictest3217-21runrttasks21:36:492
475299719,27cyclictest3217-21runrttasks21:36:492
4752997122,23cyclictest19838-21seq22:02:592
4752997122,23cyclictest19838-21seq22:02:592
4752997113,25cyclictest0-21swapper/220:05:242
4752997113,25cyclictest0-21swapper/220:05:242
4747997149,15cyclictest29794-21cron21:27:121
4747997145,18cyclictest7299-21cpu20:42:301
4752997050,14cyclictest11844-21diskmemload22:17:232
4752997050,14cyclictest11844-21diskmemload22:17:232
4752997017,20cyclictest1736-21seq23:21:432
4752997014,28cyclictest25263-21runrttasks21:17:522
4752997014,28cyclictest25263-21runrttasks21:17:522
4747997046,16cyclictest1016-21ssh00:12:491
474799703,46cyclictest8833-21apt-get19:07:521
4752996947,12cyclictest0-21swapper/222:22:502
4752996936,23cyclictest17187-40mandb23:47:152
4752996919,20cyclictest12199-21seq20:57:292
4752996916,19cyclictest6792-21ssh22:35:342
4752996916,19cyclictest6792-21ssh22:35:342
4752996914,22cyclictest7986-21seq00:24:412
4752996912,25cyclictest352-21runrttasks22:39:152
4747996955,10cyclictest4729-21cyclictest23:57:481
4747996945,18cyclictest20978-21latency23:52:381
4747996944,18cyclictest2424-21timerwakeupswit22:27:491
4747996944,18cyclictest2424-21timerwakeupswit22:27:491
474799693,46cyclictest21375-21grep21:12:321
4747996850,13cyclictest0-21swapper/121:07:301
4747996850,13cyclictest0-21swapper/121:07:301
4747996844,18cyclictest19407-21idleruntime-cro22:57:121
4747996844,18cyclictest19407-21idleruntime-cro22:57:121
4747996841,21cyclictest298-21in:imuxsock23:07:121
4747996841,13cyclictest0-21swapper/122:57:371
474799683,22cyclictest15378-21modprobe21:57:121
4747996828,29cyclictest20310-21fschecks_time19:42:351
4747996825,30cyclictest26336-21sh22:14:201
475299673,49cyclictest10732-21unixbench_multi21:47:502
4747996753,10cyclictest4729-21cyclictest21:18:191
4747996753,10cyclictest4729-21cyclictest21:18:191
4747996748,12cyclictest13067-21timerandwakeup20:57:501
4747996746,14cyclictest4729-21cyclictest23:16:441
4747996743,14cyclictest22745-21kworker/u17:0-xprtiod21:57:201
464026710,34sleep14653-21munin-run18:57:151
4755996618,34cyclictest0-21swapper/322:17:343
4755996618,34cyclictest0-21swapper/322:17:343
4747996648,10cyclictest15322-21cpuspeed19:27:291
4747996647,13cyclictest26803-21unixbench_singl23:07:491
474799662,45cyclictest23111-21latency_hist19:52:151
4747996548,11cyclictest11085-21ntpd21:47:051
4747996540,17cyclictest0-21swapper/123:22:391
474799652,23cyclictest28258-21seq00:04:471
4752996427,31cyclictest0-21swapper/200:07:282
4747996449,11cyclictest4729-21cyclictest20:22:361
4747996447,8cyclictest0-21swapper/119:22:501
4747996447,11cyclictest4649-21diskmemload21:37:481
4747996444,10cyclictest0-21swapper/122:22:291
474799634,39cyclictest12200-21fschecks_count19:17:361
4747996341,15cyclictest0-21swapper/121:52:161
4747996341,14cyclictest28661-21ntp_kernel_err20:07:411
474799632,42cyclictest30216-21cpu21:27:281
458126313,30sleep30-21swapper/318:57:133
475599622,42cyclictest17306-21taskset23:47:153
4747996245,11cyclictest297-21systemd-logind20:02:141
4747996227,25cyclictest1453-21systemctl21:32:471
4747996227,25cyclictest1453-21systemctl21:32:471
4747996143,12cyclictest6470-21systemd19:02:161
4747996142,13cyclictest8069-21sh00:24:561
474799613,32cyclictest19899-21latency_hist19:42:151
474799613,32cyclictest19899-21latency_hist19:42:151
4747996119,30cyclictest27050-21ntp_kernel_pll_20:02:401
4747996119,30cyclictest27050-21ntp_kernel_pll_20:02:401
474799606,16cyclictest32458-21runrttasks20:18:531
4747996041,13cyclictest10583-21forks19:12:361
474799603,39cyclictest10270-21sort20:52:141
474799603,39cyclictest10270-21sort20:52:141
474799592,38cyclictest7478-21grep19:02:441
474799592,38cyclictest7478-21grep19:02:441
474799583,40cyclictest18208-21latency_hist19:37:151
474799583,40cyclictest18208-21latency_hist19:37:151
475599563,39cyclictest8094-21chrt20:42:503
475599563,39cyclictest17029-21taskset22:52:363
475599563,39cyclictest17029-21taskset22:52:363
475599563,37cyclictest12006-21chrt20:57:153
475599562,40cyclictest5208-21chrt21:38:593
475599533,36cyclictest6190-21taskset00:22:213
475599532,35cyclictest27762-21taskset22:17:163
475599523,37cyclictest10108-21taskset21:47:383
475599523,36cyclictest23523-21taskset23:57:293
475599523,35cyclictest2115-21chrt00:15:403
475599523,35cyclictest10811-21chrt22:42:303
475599523,35cyclictest10811-21chrt22:42:303
475599523,33cyclictest10461-21chrt22:42:143
475599522,36cyclictest27896-21taskset20:07:133
475599522,36cyclictest27896-21taskset20:07:133
475599522,36cyclictest2049-21chrt23:22:143
475599513,37cyclictest15364-21chrt21:02:353
475599513,36cyclictest31551-21chrt22:22:443
475599513,35cyclictest22516-21chrt23:55:263
475599513,35cyclictest10658-21chrt19:12:373
475599513,35cyclictest10633-21chrt23:36:253
475599513,35cyclictest10633-21chrt23:36:253
475599513,34cyclictest29987-21chrt20:12:363
475599513,34cyclictest16609-21chrt22:52:163
475599513,31cyclictest18409-21taskset19:37:163
475599513,31cyclictest18409-21taskset19:37:163
475599503,38cyclictest16387-21taskset21:57:433
475599503,35cyclictest19613-21taskset23:50:403
475599503,35cyclictest19613-21taskset23:50:403
475599503,34cyclictest25283-21taskset21:17:553
475599503,34cyclictest25283-21taskset21:17:553
475599503,34cyclictest18770-21chrt21:07:423
475599503,34cyclictest18770-21chrt21:07:423
475599503,33cyclictest8156-21chrt23:32:163
475599503,33cyclictest23125-21taskset21:15:163
475599502,36cyclictest15259-21chrt21:56:543
475599502,35cyclictest18848-21taskset22:02:293
475599502,35cyclictest18848-21taskset22:02:293
4755994934,9cyclictest451rcuc/319:59:523
475599493,33cyclictest6618-21chrt20:38:443
475599493,33cyclictest22855-21chrt22:07:563
475599493,32cyclictest5393-21taskset18:57:403
475599492,39cyclictest27397-21taskset21:22:333
475599492,38cyclictest405-21chrt21:32:143
475599492,35cyclictest25514-21chrt23:07:153
475599492,34cyclictest28761-21taskset20:07:463
475599492,34cyclictest19719-21chrt22:57:223
475599483,36cyclictest4290-21chrt20:32:413
475599483,33cyclictest29026-21taskset00:06:573
475599482,34cyclictest30185-21chrt00:07:463
475599476,32cyclictest1980-21chrt22:27:393
475599476,32cyclictest1980-21chrt22:27:393
475599473,33cyclictest8431-21chrt21:44:383
475599473,32cyclictest28052-21taskset23:11:163
475599473,31cyclictest13379-21chrt20:58:093
4755994732,8cyclictest451rcuc/323:14:533
4755994724,14cyclictest187452sleep319:37:363
4755994724,14cyclictest187452sleep319:37:363
475599472,32cyclictest458-21taskset20:22:163
475599464,30cyclictest12640-21chrt19:17:473
475599463,32cyclictest23559-21chrt19:52:353
475599462,32cyclictest3026-21taskset23:22:473
475599452,29cyclictest20722-21taskset19:42:473
475599443,30cyclictest3730-21taskset20:32:163
475599442,29cyclictest8858-21chrt20:47:233
475599442,29cyclictest8858-21chrt20:47:233
475599433,31cyclictest1422-21taskset21:32:473
475599433,31cyclictest1422-21taskset21:32:473
475599432,31cyclictest7817-21chrt19:02:513
475599432,31cyclictest7817-21chrt19:02:513
475599423,29cyclictest14546-21taskset19:22:503
475599402,26cyclictest21996-21taskset19:47:373
475599393,27cyclictest1017-21chrt20:22:403
475599372,26cyclictest15414-21chrt19:27:323
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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