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2025-12-18 - 12:08
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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 Thu Dec 18, 2025 00:44:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4751215010,96sleep04809-21fschecks_time19:05:030
5996991202,7cyclictest0-21swapper/022:29:540
59969911360,47cyclictest5987-21cyclictest19:55:110
59969911160,47cyclictest5987-21cyclictest21:59:390
59969911160,47cyclictest5987-21cyclictest21:59:390
60009910764,36cyclictest0-21swapper/100:19:431
60009910764,36cyclictest0-21swapper/100:19:431
60099910667,34cyclictest5987-21cyclictest21:40:142
59969910642,54cyclictest0-21swapper/023:40:060
59969910546,51cyclictest4269-21sh20:40:130
59969910546,51cyclictest4269-21sh20:40:130
60099910362,32cyclictest5619-21mailstats00:00:132
5996991033,23cyclictest17372-21taskset19:41:070
59969910249,47cyclictest0-21swapper/000:25:080
59969910239,53cyclictest0-21swapper/000:29:560
5996991014,25cyclictest9384-21taskset19:17:210
5996991013,21cyclictest18276-21uname19:45:050
5118210110,64sleep25162-21sendmail_mailst19:05:182
3047121010,4sleep130472-21kernelversion22:00:051
6000999981,11cyclictest28451-21/usr/sbin/munin21:54:571
6000999981,11cyclictest28451-21/usr/sbin/munin21:54:571
5996999846,41cyclictest0-21swapper/020:45:120
5996999846,41cyclictest0-21swapper/020:45:120
599699984,22cyclictest18279-21apt-get21:24:550
599699984,11cyclictest12201-21apt-get22:44:520
5996999840,52cyclictest0-21swapper/021:04:410
599699983,27cyclictest8539-21/usr/sbin/munin20:55:080
599699983,23cyclictest26740-21apt-key21:49:430
599699983,23cyclictest13405-21/usr/sbin/munin21:09:490
599699982,24cyclictest21889-21apt-config23:14:400
599699982,24cyclictest21889-21apt-config23:14:400
5996999741,49cyclictest0-21swapper/021:24:390
5996999741,49cyclictest0-21swapper/021:24:390
6009999653,36cyclictest0-21swapper/220:30:302
6000999658,31cyclictest0-21swapper/123:30:241
5996999643,46cyclictest0-21swapper/022:44:410
5996999642,47cyclictest0-21swapper/023:25:110
5996999642,44cyclictest0-21swapper/023:50:000
599699963,23cyclictest15652-21apt-get22:54:540
599699963,23cyclictest15652-21apt-get22:54:540
599699963,21cyclictest9326-21seq00:12:200
599699962,24cyclictest7575-21latency_hist19:14:410
6009999553,35cyclictest0-21swapper/223:20:182
6009999549,39cyclictest0-21swapper/221:19:402
6009999549,39cyclictest0-21swapper/221:19:402
6000999552,37cyclictest5987-21cyclictest21:35:151
6000999552,37cyclictest5987-21cyclictest21:35:151
5996999543,44cyclictest0-21swapper/022:15:120
5996999542,46cyclictest0-21swapper/023:20:340
599699953,24cyclictest500-21apt-get20:30:010
599699952,24cyclictest32519-21taskset23:44:460
5996999445,43cyclictest0-21swapper/021:05:060
5996999441,48cyclictest0-21swapper/023:55:040
5996999441,48cyclictest0-21swapper/023:55:040
5996999440,48cyclictest0-21swapper/021:19:400
5996999440,48cyclictest0-21swapper/021:19:400
599699942,22cyclictest9203-21fschecks_time22:35:020
6009999354,31cyclictest0-21swapper/223:15:402
5996999362,24cyclictest0-21swapper/021:39:390
5996999362,24cyclictest0-21swapper/021:39:390
599699933,31cyclictest13766-21/usr/sbin/munin19:30:140
599699933,31cyclictest13766-21/usr/sbin/munin19:30:140
599699933,28cyclictest28702-21/usr/sbin/munin23:30:390
6009999238,47cyclictest0-21swapper/220:24:552
599699923,30cyclictest22772-21/usr/sbin/munin19:59:510
599699923,29cyclictest27879-21tune2fs20:15:030
599699923,21cyclictest12783-21taskset19:29:290
599699922,24cyclictest20152-21apt-get21:30:080
599699922,24cyclictest20152-21apt-get21:30:080
6009999170,14cyclictest8371-21latency_hist20:54:412
6009999170,14cyclictest8371-21latency_hist20:54:412
6009999154,30cyclictest0-21swapper/219:30:162
6009999154,30cyclictest0-21swapper/219:30:162
6009999150,34cyclictest0-21swapper/221:00:152
6009999150,33cyclictest0-21swapper/219:15:152
6009999137,47cyclictest7902-21modprobe00:09:392
5996999143,44cyclictest5987-21cyclictest00:20:570
599699913,8cyclictest0-21swapper/000:34:510
6009999074,11cyclictest310-21in:imuxsock23:29:392
6009999047,38cyclictest0-21swapper/200:20:402
6009999040,43cyclictest11207-21apt19:24:402
599699903,31cyclictest2455-21/usr/sbin/munin20:35:070
599699903,24cyclictest4113-21/usr/sbin/munin22:20:080
599699903,23cyclictest24442-21taskset21:41:270
599699903,22cyclictest7238-21cat22:29:420
599699902,27cyclictest19781-21tune2fs19:50:020
92412890,5sleep10-21swapper/120:55:131
6000998972,13cyclictest5987-21cyclictest21:14:421
6000998949,34cyclictest0-21swapper/123:20:331
599699893,7cyclictest0-21swapper/023:39:110
599699893,31cyclictest14738-21/usr/sbin/munin22:50:440
599699893,31cyclictest14738-21/usr/sbin/munin22:50:440
599699893,29cyclictest7799-21/usr/sbin/munin20:50:150
599699893,29cyclictest7799-21/usr/sbin/munin20:50:150
599699893,28cyclictest31890-21/usr/sbin/munin22:05:010
599699893,27cyclictest28238-21systemd-run21:54:400
599699893,27cyclictest28238-21systemd-run21:54:400
599699893,22cyclictest4935-21/usr/sbin/munin00:00:080
599699893,22cyclictest31956-21/usr/sbin/munin20:25:500
599699893,12cyclictest9789-21apt-get00:14:550
599699893,12cyclictest9789-21apt-get00:14:550
599699892,23cyclictest25533-21taskset20:07:190
600099883,27cyclictest350-21runrttasks21:52:021
600099883,27cyclictest350-21runrttasks21:52:021
600099882,33cyclictest2926-21latency22:15:051
5996998864,16cyclictest23707-21latency_hist23:19:420
599699883,7cyclictest0-21swapper/020:19:520
599699883,7cyclictest0-21swapper/020:19:520
599699883,25cyclictest964-21/usr/sbin/munin22:09:560
599699882,33cyclictest14693-21seq19:34:540
599699882,33cyclictest14693-21seq19:34:540
6009998765,15cyclictest5987-21cyclictest21:29:402
6009998747,33cyclictest0-21swapper/221:45:142
6009998731,8cyclictest181rcu_preempt22:34:412
6000998751,29cyclictest0-21swapper/122:29:421
6000998733,42cyclictest0-21swapper/119:34:481
6000998733,42cyclictest0-21swapper/119:34:481
599699874,27cyclictest25991-21apt-get20:09:490
599699874,27cyclictest25991-21apt-get20:09:490
599699873,26cyclictest17288-21apt-get22:59:550
6009998647,32cyclictest0-21swapper/220:45:062
6009998647,32cyclictest0-21swapper/220:45:062
6009998643,31cyclictest19260-21sh19:49:392
600999863,22cyclictest26908-21apt-get21:50:212
600999863,22cyclictest26908-21apt-get21:50:212
599699864,14cyclictest6576-21apt-get00:04:550
599699862,34cyclictest10015-21df19:19:590
6009998567,12cyclictest19631-21cstates19:49:572
6009998561,16cyclictest17153-21ntp_kernel_err21:20:072
6009998561,16cyclictest17153-21ntp_kernel_err21:20:072
6009998548,31cyclictest0-21swapper/222:05:152
6009998548,31cyclictest0-21swapper/220:10:132
6009998548,31cyclictest0-21swapper/220:10:132
6009998545,33cyclictest0-21swapper/220:14:572
600999853,28cyclictest31381-21taskset23:40:042
6000998553,25cyclictest0-21swapper/119:30:161
6000998553,25cyclictest0-21swapper/119:30:161
599699853,29cyclictest19161-21taskset23:05:020
599699853,28cyclictest30612-21tr22:00:070
6009998459,13cyclictest0-21swapper/221:34:422
6009998459,13cyclictest0-21swapper/221:34:422
6009998429,47cyclictest2786-21sort22:15:022
6000998464,14cyclictest20705-21fschecks_count23:09:591
6000998464,14cyclictest20705-21fschecks_count23:09:591
600099844,29cyclictest31117-21apt-get20:25:101
600099843,30cyclictest28525-21grep20:15:171
6000998417,28cyclictest8903-21wc00:10:131
469628422,37sleep30-21swapper/319:05:023
6009998316,30cyclictest21257-21sed23:10:122
6009998316,30cyclictest21257-21sed23:10:122
6009998313,26cyclictest11684-21seq22:41:382
6000998355,19cyclictest6678-21modprobe20:49:391
6000998355,19cyclictest6678-21modprobe20:49:391
600099833,28cyclictest4658-21munin-run23:59:391
600099833,28cyclictest4658-21munin-run23:59:391
6009998254,20cyclictest12228-21threads19:25:152
600999824,26cyclictest30874-21latency_hist23:39:432
6009998215,24cyclictest4115-21cat23:55:142
6009998215,24cyclictest4115-21cat23:55:142
6000998263,10cyclictest0-21swapper/123:45:141
600099823,28cyclictest11101-21tail21:00:171
600099822,32cyclictest20128-21runrttasks21:29:541
600099822,32cyclictest20128-21runrttasks21:29:541
600999813,36cyclictest13814-21ntp_states00:25:102
600999813,27cyclictest32637-21cstates23:44:552
600999813,26cyclictest17051-21/usr/sbin/munin00:35:112
600999813,23cyclictest29226-21/usr/sbin/munin20:19:502
600999813,23cyclictest29226-21/usr/sbin/munin20:19:502
600999812,27cyclictest9164-21vmstat00:10:172
600999812,27cyclictest10118-21if_eth000:15:032
600999812,27cyclictest10118-21if_eth000:15:032
6009998112,28cyclictest5304-21date20:44:432
6000998158,15cyclictest2885-21timerandwakeup20:35:171
6000998133,38cyclictest0-21swapper/120:44:391
6000998133,38cyclictest0-21swapper/120:44:391
600099813,24cyclictest19617-21latency_hist21:29:421
600999804,26cyclictest13831-21/usr/sbin/munin21:10:052
600999803,24cyclictest4919-21/usr/sbin/munin22:20:152
600999803,23cyclictest2817-21/usr/sbin/munin20:35:162
6009998014,27cyclictest27913-21fschecks_count23:30:232
6000998061,14cyclictest14241-21kworker/u19:1+events_unbound22:59:391
6000998061,14cyclictest14241-21kworker/u19:1+events_unbound22:59:391
600099804,30cyclictest24951-21/usr/sbin/munin21:44:571
600099804,24cyclictest9860-21unixbench_multi22:35:161
6000998035,36cyclictest0-21swapper/122:20:161
600099803,30cyclictest30875-21latency_hist23:39:431
600099803,27cyclictest27247-21munin-run23:29:411
600099803,27cyclictest13642-21/usr/sbin/munin00:25:061
600099803,26cyclictest2037-21latency_hist20:34:431
600099803,25cyclictest12410-21grep19:25:161
600099803,22cyclictest17070-21/usr/sbin/munin00:35:121
600099802,32cyclictest624-21basename22:09:391
600099802,25cyclictest350-21runrttasks21:05:081
600099802,25cyclictest12450-21grep22:45:021
6000998016,27cyclictest8735-21wc22:34:411
601799794,33cyclictest28485-21chrt23:30:373
6009997956,13cyclictest0-21swapper/222:50:362
6009997956,13cyclictest0-21swapper/222:50:362
600999793,30cyclictest10357-21unin-run22:39:412
600999793,28cyclictest16515-21/usr/sbin/munin19:40:022
600999793,27cyclictest29026-21/usr/sbin/munin21:55:102
600999793,27cyclictest29026-21/usr/sbin/munin21:55:102
600999793,24cyclictest2146-21/usr/sbin/munin23:50:042
600099793,24cyclictest14289-21uniq22:50:321
600099793,24cyclictest14289-21uniq22:50:321
6000997932,38cyclictest0-21swapper/119:24:431
600099793,21cyclictest11032-21/usr/sbin/munin22:40:051
600099792,30cyclictest5179-21sort00:00:021
6000997922,45cyclictest0-21swapper/123:19:431
600099792,23cyclictest8675-21/usr/sbin/munin19:15:081
600099792,22cyclictest24447-21cpuspeed20:04:571
6000997915,28cyclictest31486-21open_files23:40:101
600999784,22cyclictest8568-21/usr/sbin/munin20:54:552
600999783,28cyclictest23335-21/usr/sbin/munin20:00:132
600999783,27cyclictest17846-21/usr/sbin/munin23:00:112
600999783,27cyclictest13686-21apt-config22:49:422
600999783,23cyclictest6344-21/usr/sbin/munin19:09:562
600999783,22cyclictest16585-21/usr/sbin/munin22:55:152
600999783,22cyclictest16585-21/usr/sbin/munin22:55:152
600999783,21cyclictest6223-21/usr/sbin/munin22:25:072
600999783,21cyclictest16025-21latency_hist19:39:432
600999783,21cyclictest16025-21latency_hist19:39:432
600999782,27cyclictest4138-21/usr/sbin/munin20:40:062
600999782,23cyclictest24568-21runrttasks20:05:032
600099784,26cyclictest26497-21/usr/sbin/munin20:10:061
600099784,26cyclictest26497-21/usr/sbin/munin20:10:061
600099784,26cyclictest19864-21/usr/sbin/munin19:50:041
600099783,31cyclictest8307-21awk20:54:391
600099783,31cyclictest8307-21awk20:54:391
600099783,31cyclictest15397-21/usr/sbin/munin00:30:081
600099783,28cyclictest6188-21dpkg19:09:471
600099783,27cyclictest29925-21/usr/sbin/munin20:20:141
600099783,27cyclictest29925-21/usr/sbin/munin20:20:141
600099783,22cyclictest16653-21/usr/sbin/munin21:20:111
600099783,22cyclictest16653-21/usr/sbin/munin21:20:111
600099783,21cyclictest23326-21/usr/sbin/munin20:00:121
6000997828,43cyclictest0-21swapper/119:44:091
600099782,25cyclictest23555-21chrt21:40:001
600999773,27cyclictest22521-21basename19:59:402
600999773,24cyclictest15465-21proc_pri00:30:112
600999773,22cyclictest30396-21/usr/sbin/munin22:00:022
600999772,26cyclictest20265-21modprobe23:09:392
6000997760,11cyclictest7083-21ntp_kernel_pll_00:05:101
600099774,26cyclictest21115-21/usr/sbin/munin19:55:071
600099773,25cyclictest2595-21unixbench_multi23:50:141
600099773,25cyclictest19655-21/usr/sbin/munin23:05:141
600099773,25cyclictest18652-21idleruntime-cro23:04:391
6000997732,37cyclictest0-21swapper/100:20:461
600099772,24cyclictest18246-21/usr/sbin/munin19:45:041
601799764,29cyclictest10143-21chrt19:20:033
600999763,24cyclictest21942-21fschecks_count21:35:022
600999763,24cyclictest21942-21fschecks_count21:35:022
600999763,23cyclictest1339-21/usr/sbin/munin22:10:062
6009997612,25cyclictest12928-21seq21:06:582
600099763,24cyclictest1223-21/usr/sbin/munin22:10:031
600099762,25cyclictest15198-21/usr/sbin/munin21:15:001
600099762,25cyclictest15198-21/usr/sbin/munin21:15:001
46042757,27sleep10-21swapper/119:04:561
601799714,28cyclictest4435-21chrt22:20:033
6017996824,11cyclictest0-21swapper/319:44:583
601799663,28cyclictest8190-21chrt19:14:523
6017995539,10cyclictest0-21swapper/323:14:563
6017995439,9cyclictest0-21swapper/320:29:543
601799543,37cyclictest25938-21taskset21:45:163
125832530,8sleep30-21swapper/322:45:053
601799524,36cyclictest19226-21taskset21:25:163
601799524,32cyclictest11096-21taskset22:40:073
6017995238,9cyclictest0-21swapper/321:50:033
6017995238,9cyclictest0-21swapper/321:50:033
601799523,33cyclictest4706-21chrt23:59:393
601799523,33cyclictest4706-21chrt23:59:393
601799514,34cyclictest16439-21taskset22:55:143
601799514,34cyclictest16439-21taskset22:55:143
601799513,35cyclictest27713-21taskset20:14:583
601799513,35cyclictest26335-21taskset23:25:063
601799513,34cyclictest7277-21taskset22:29:433
601799504,34cyclictest1216-21taskset22:10:033
601799504,33cyclictest804-21taskset22:09:423
601799504,33cyclictest22615-21taskset21:35:163
601799504,33cyclictest22615-21taskset21:35:163
601799504,33cyclictest13211-21chrt00:24:423
601799504,33cyclictest12084-21taskset21:05:033
601799504,31cyclictest10519-21taskset22:39:433
601799503,35cyclictest15550-21taskset00:30:133
601799503,34cyclictest30022-21taskset21:59:423
601799503,34cyclictest30022-21taskset21:59:423
601799503,34cyclictest29722-21taskset23:35:063
601799503,32cyclictest26232-21chrt20:10:003
601799503,32cyclictest26232-21chrt20:10:003
601799503,32cyclictest15371-21taskset21:15:033
601799503,32cyclictest15371-21taskset21:15:033
601799495,32cyclictest17106-21chrt19:40:153
601799494,32cyclictest12894-21chrt19:29:423
601799494,32cyclictest10698-21chrt21:00:093
601799493,34cyclictest23519-21taskset21:39:583
601799493,34cyclictest2203-21chrt20:34:583
601799493,33cyclictest5551-21chrt00:00:123
601799493,33cyclictest3587-21chrt22:16:393
601799493,32cyclictest32068-21chrt20:25:513
601799493,31cyclictest24233-21taskset23:19:523
601799485,30cyclictest3788-21taskset20:39:563
601799485,30cyclictest3788-21taskset20:39:563
601799484,32cyclictest17298-21taskset22:59:563
601799483,33cyclictest1675-21taskset23:49:443
601799483,32cyclictest9796-21taskset00:14:543
601799483,32cyclictest9796-21taskset00:14:543
601799483,32cyclictest8869-21taskset20:55:033
601799483,32cyclictest7441-21taskset19:13:433
601799483,32cyclictest30175-21taskset20:20:163
601799483,32cyclictest30175-21taskset20:20:163
601799483,32cyclictest16924-21chrt21:20:013
601799483,32cyclictest16924-21chrt21:20:013
601799474,30cyclictest13362-21chrt19:30:033
601799474,30cyclictest13362-21chrt19:30:033
601799474,29cyclictest14953-21chrt21:14:433
601799473,32cyclictest16237-21taskset19:39:433
601799473,32cyclictest16237-21taskset19:39:433
601799473,29cyclictest20128-21chrt21:29:543
601799473,29cyclictest20128-21chrt21:29:543
601799472,32cyclictest25010-21chrt20:05:143
601799464,31cyclictest9163-21chrt00:10:173
601799463,33cyclictest14111-21chrt22:50:203
601799463,33cyclictest14111-21chrt22:50:203
601799463,31cyclictest17038-21taskset00:35:113
601799462,31cyclictest7795-21chrt00:08:183
601799453,32cyclictest30111-21chrt21:59:503
601799453,29cyclictest21045-21taskset23:10:083
601799453,29cyclictest21045-21taskset23:10:083
601799453,28cyclictest7117-21taskset20:50:013
601799453,28cyclictest7117-21taskset20:50:013
601799443,29cyclictest420-21chrt23:45:023
601799443,27cyclictest21143-21taskset19:54:533
601799442,32cyclictest13542-21taskset00:25:033
601799433,31cyclictest7881-21taskset22:30:073
601799433,30cyclictest31656-21chrt23:40:123
601799433,30cyclictest22924-21taskset19:59:593
601799422,28cyclictest18911-21chrt23:04:543
601799413,28cyclictest5829-21chrt20:45:073
601799413,28cyclictest5829-21chrt20:45:073
601799413,28cyclictest19832-21chrt19:50:033
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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