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2026-07-11 - 20:45
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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 Sat Jul 11, 2026 12:44:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
709521139,71sleep27155-21fschecks_time06:53:092
709521139,71sleep27155-21fschecks_time06:53:092
83459910756,13cyclictest181rcu_preempt11:52:291
8345999973,19cyclictest15962-21diskmemload11:57:371
8345999967,10cyclictest181rcu_preempt12:08:281
8353999776,10cyclictest22580-21kworker/u18:2+ext4-rsv-conversion10:57:442
834599952,68cyclictest17293-21runrttasks07:22:391
834599952,68cyclictest17293-21runrttasks07:22:391
76842957,57sleep07729-21sort06:53:280
76842957,57sleep07729-21sort06:53:280
8353999435,20cyclictest297-21systemd-logind07:57:162
8353999330,28cyclictest12554-21taskset08:45:252
8341999214,53cyclictest18804-21taskset11:42:200
8341999214,53cyclictest18804-21taskset11:42:200
8341999213,47cyclictest3808-21seq09:29:220
8341999213,47cyclictest3808-21seq09:29:220
8345999160,10cyclictest181rcu_preempt12:12:431
8353999031,26cyclictest28253-21seq10:09:482
8353999030,24cyclictest26906-21seq07:51:502
8341999064,13cyclictest23712-21sh07:42:150
8341999010,35cyclictest0-21swapper/011:08:220
8353998973,11cyclictest8332-21cyclictest11:47:372
8345998960,21cyclictest15298-21latency_hist07:17:181
8345998949,13cyclictest181rcu_preempt11:34:521
8345998949,13cyclictest181rcu_preempt11:34:521
8345998945,13cyclictest181rcu_preempt09:35:461
8345998939,22cyclictest28640-21cpuspeed09:17:331
8345998939,22cyclictest28640-21cpuspeed09:17:331
8345998867,8cyclictest181rcu_preempt12:18:151
8345998854,12cyclictest181rcu_preempt11:22:121
8345998849,15cyclictest181rcu_preempt08:47:491
8341998861,19cyclictest6160-21latency_hist08:27:170
8353998729,22cyclictest8752-21taskset11:24:502
8345998764,9cyclictest181rcu_preempt11:47:251
8345998762,8cyclictest181rcu_preempt09:09:441
8345998752,12cyclictest181rcu_preempt09:02:211
8345998746,8cyclictest181rcu_preempt09:22:501
8345998645,8cyclictest181rcu_preempt09:51:451
8345998645,17cyclictest181rcu_preempt08:05:151
8345998645,17cyclictest181rcu_preempt08:05:151
8353998526,22cyclictest1932-21taskset10:20:112
8353998526,22cyclictest1932-21taskset10:20:112
8345998551,15cyclictest181rcu_preempt07:57:501
8345998541,14cyclictest181rcu_preempt11:29:381
8345998535,12cyclictest0-21swapper/108:18:021
8345998535,12cyclictest0-21swapper/108:18:021
8345998534,28cyclictest0-21swapper/111:22:471
8341998511,48cyclictest26209-21taskset10:59:320
8353998448,27cyclictest0-21swapper/209:37:152
8353998419,26cyclictest0-21swapper/209:44:392
8353998419,26cyclictest0-21swapper/209:44:392
8345998464,7cyclictest181rcu_preempt07:52:261
8345998452,8cyclictest181rcu_preempt08:42:171
8345998452,8cyclictest181rcu_preempt08:42:171
8345998451,10cyclictest181rcu_preempt08:58:341
8345998444,17cyclictest181rcu_preempt07:40:161
8345998433,29cyclictest0-21swapper/111:02:401
8345998433,29cyclictest0-21swapper/111:02:401
8341998424,19cyclictest7467-21seq08:30:070
8341998424,19cyclictest7467-21seq08:30:070
8341998420,23cyclictest5345-21diskmemload09:32:350
8341998415,30cyclictest21751-21ssh09:58:270
8341998413,29cyclictest2248-21rm10:21:040
8341998413,29cyclictest2248-21rm10:21:040
8353998366,12cyclictest8332-21cyclictest10:27:362
8353998330,21cyclictest4665-21ssh11:17:492
8345998355,8cyclictest181rcu_preempt10:02:341
8345998355,8cyclictest181rcu_preempt10:02:341
8345998354,11cyclictest181rcu_preempt09:47:181
8345998354,11cyclictest181rcu_preempt09:47:181
8345998350,10cyclictest181rcu_preempt10:47:171
8345998348,13cyclictest181rcu_preempt11:07:491
8345998338,8cyclictest181rcu_preempt12:03:321
8345998337,11cyclictest0-21swapper/110:31:461
8345998329,34cyclictest0-21swapper/108:33:271
8345998329,34cyclictest0-21swapper/108:33:271
8345998324,22cyclictest0-21swapper/108:22:421
8341998316,27cyclictest18589-21ssh09:53:000
8341998316,27cyclictest18589-21ssh09:53:000
8341998313,25cyclictest0-21swapper/009:41:550
8353998232,24cyclictest29961-21seq12:00:522
8353998225,22cyclictest352-21runrttasks10:39:222
8345998252,10cyclictest181rcu_preempt10:17:401
8345998252,10cyclictest181rcu_preempt10:17:401
8345998248,8cyclictest181rcu_preempt12:24:391
8345998246,13cyclictest181rcu_preempt09:52:481
8345998246,13cyclictest181rcu_preempt09:52:481
8345998244,15cyclictest181rcu_preempt11:37:401
8345998239,19cyclictest181rcu_preempt10:32:521
8345998239,19cyclictest181rcu_preempt10:32:521
8345998234,24cyclictest0-21swapper/107:47:301
8345998222,17cyclictest0-21swapper/108:08:371
8341998211,29cyclictest3871-21seq12:11:210
8353998129,19cyclictest18512-21taskset09:00:212
8353998126,23cyclictest352-21runrttasks11:55:172
8353998122,25cyclictest4536-21ssh12:12:302
8353998122,24cyclictest16724-21runrttasks07:21:532
8345998135,16cyclictest8332-21cyclictest10:08:451
8345998129,29cyclictest0-21swapper/109:13:431
8345998128,29cyclictest0-21swapper/107:32:521
8341998163,12cyclictest29022-21ssh09:17:420
8341998163,12cyclictest29022-21ssh09:17:420
8341998122,31cyclictest26846-21seq07:51:010
8341998114,27cyclictest32220-21rm12:03:500
8341998113,29cyclictest28080-21ssh10:09:190
8353998024,24cyclictest3015-21sed08:17:192
8353998024,24cyclictest3015-21sed08:17:192
8345998062,10cyclictest2887-21ssh09:27:501
8345998062,10cyclictest2887-21ssh09:27:501
8345998050,8cyclictest181rcu_preempt10:49:041
8345998050,8cyclictest181rcu_preempt10:49:041
8345998049,16cyclictest181rcu_preempt08:13:331
8345998049,16cyclictest181rcu_preempt08:13:331
8345998042,14cyclictest181rcu_preempt11:13:331
8345998041,17cyclictest181rcu_preempt11:45:361
8345998041,17cyclictest181rcu_preempt11:45:361
8345998035,27cyclictest0-21swapper/110:13:041
8345998027,25cyclictest0-21swapper/107:04:321
8341998057,15cyclictest8332-21cyclictest08:52:370
8341998017,24cyclictest28790-21ssh11:03:260
8341998017,24cyclictest28790-21ssh11:03:260
8341998016,27cyclictest15797-21sh09:48:350
8341998015,29cyclictest12540-21ssh12:25:400
8341998015,25cyclictest5041-21ssh10:25:290
8341998012,22cyclictest28470-21seq07:56:160
8353997932,24cyclictest9305-21seq08:34:582
8353997932,24cyclictest9305-21seq08:34:582
8345997947,12cyclictest181rcu_preempt09:41:001
8345997943,16cyclictest181rcu_preempt10:00:041
8345997943,14cyclictest181rcu_preempt10:38:051
8345997940,17cyclictest181rcu_preempt10:24:491
8341997917,23cyclictest14381-21unin-run08:52:160
8341997916,28cyclictest1031-21rm09:25:050
8341997915,26cyclictest11915-21ssh09:42:420
8341997915,26cyclictest11915-21ssh09:42:420
8341997915,24cyclictest5269-21ssh11:18:240
8341997914,31cyclictest11574-21rm10:36:530
8341997914,31cyclictest11574-21rm10:36:530
8341997913,26cyclictest9581-21ssh11:27:120
8341997913,26cyclictest12557-21ssh11:32:090
8341997912,27cyclictest24687-21rm10:03:190
8341997912,27cyclictest24687-21rm10:03:190
8353997848,23cyclictest23989-21idleruntime-cro10:57:142
8353997828,26cyclictest642-21seq12:06:202
8353997828,17cyclictest13328-21taskset07:09:272
8353997824,30cyclictest0-21swapper/212:08:022
8353997817,25cyclictest0-21swapper/208:17:212
8353997817,25cyclictest0-21swapper/208:17:212
834599787,27cyclictest31-21ksoftirqd/107:07:321
8345997841,12cyclictest181rcu_preempt10:53:401
8345997830,17cyclictest0-21swapper/107:42:421
8345997830,17cyclictest0-21swapper/107:42:421
8341997854,17cyclictest18706-21latency_hist11:42:170
8341997817,37cyclictest3265-21seq11:16:080
8341997815,25cyclictest25075-21seq07:44:210
8341997815,25cyclictest25075-21seq07:44:210
8341997815,23cyclictest7819-21ssh10:29:480
8341997815,23cyclictest15365-21ssh11:36:410
8341997815,23cyclictest15365-21ssh11:36:410
8341997814,28cyclictest23859-21rm11:50:230
8341997814,26cyclictest19744-21fschecks_count09:02:380
8341997814,25cyclictest28968-21ssh11:58:020
8341997813,22cyclictest26695-21seq11:55:000
8341997812,26cyclictest23569-21rm10:56:080
8353997729,26cyclictest18497-21seq07:25:542
8353997729,26cyclictest18497-21seq07:25:542
8345997747,7cyclictest181rcu_preempt07:17:341
8345997731,9cyclictest0-21swapper/108:52:431
8345997728,24cyclictest0-21swapper/107:27:421
834199779,26cyclictest0-21swapper/007:02:190
8341997757,13cyclictest11261-21latency_hist08:42:170
8341997757,13cyclictest11261-21latency_hist08:42:170
8341997714,26cyclictest6821-21rm12:16:180
8341997714,24cyclictest31234-21ssh10:14:440
8341997713,24cyclictest24057-21ssh09:08:590
8341997712,27cyclictest20036-21ssh10:49:360
8341997712,27cyclictest20036-21ssh10:49:360
8353997659,11cyclictest8332-21cyclictest10:43:312
8353997656,14cyclictest18480-21sh10:47:342
8353997656,14cyclictest18480-21sh10:47:342
8353997630,24cyclictest30638-21seq09:20:302
8353997630,24cyclictest30638-21seq09:20:302
8353997626,22cyclictest15962-21diskmemload10:01:192
834599765,43cyclictest31-21ksoftirqd/106:57:301
834599765,43cyclictest31-21ksoftirqd/106:57:301
8345997654,16cyclictest24709-21sh10:57:571
8345997642,11cyclictest181rcu_preempt08:27:501
8345997642,11cyclictest181rcu_preempt08:27:501
8341997612,24cyclictest8663-21sh12:18:050
8341997611,27cyclictest27549-21ssh09:15:220
8353997532,19cyclictest9594-21seq06:58:442
8353997532,19cyclictest9594-21seq06:58:442
8353997522,20cyclictest0-21swapper/207:32:462
8353997519,24cyclictest5949-21runrttasks08:26:382
8353997517,25cyclictest0-21swapper/209:50:362
834599752,28cyclictest31-21ksoftirqd/108:45:231
8341997551,18cyclictest4526-21latency_hist08:22:180
8341997551,18cyclictest4526-21latency_hist08:22:180
8341997514,21cyclictest18473-21ssh09:00:140
8353997453,15cyclictest29573-21sh11:05:392
8353997453,15cyclictest29573-21sh11:05:392
8353997418,20cyclictest0-21swapper/212:26:112
8341997453,16cyclictest9293-21threads06:57:510
8341997453,16cyclictest9293-21threads06:57:510
834199743,19cyclictest0-21swapper/007:32:520
8341997413,23cyclictest14662-21rm10:41:290
8341997412,25cyclictest12192-21taskset07:07:200
834199734,45cyclictest373-21lldpd07:22:500
834199734,45cyclictest373-21lldpd07:22:500
8353997256,10cyclictest1597-21ntp_kernel_pll_11:12:442
8353997230,20cyclictest10848-21seq08:39:082
8353997230,20cyclictest10848-21seq08:39:082
8345997230,13cyclictest0-21swapper/106:57:191
8345997230,13cyclictest0-21swapper/106:57:191
8341997214,28cyclictest17736-21rm10:46:410
8353997151,14cyclictest15598-21sh11:37:152
8353997151,14cyclictest15598-21sh11:37:152
835399713,49cyclictest24173-21fschecks_count07:42:382
835399713,49cyclictest24173-21fschecks_count07:42:382
8353997117,18cyclictest15962-21diskmemload11:11:322
8353997114,30cyclictest24339-21sh09:09:462
8353997114,20cyclictest15962-21diskmemload09:06:002
8353997113,23cyclictest0-21swapper/209:41:162
8341997116,21cyclictest16441-21seq07:18:080
8341997112,28cyclictest18891-21/usr/sbin/munin07:27:540
8353997020,24cyclictest0-21swapper/208:51:482
8341997057,9cyclictest8332-21cyclictest08:33:050
8341997057,9cyclictest8332-21cyclictest08:33:050
727427010,36sleep30-21swapper/306:53:143
727427010,36sleep30-21swapper/306:53:143
8353996949,14cyclictest10132-21latency_hist12:22:162
835399693,48cyclictest559-21unixbench_singl08:07:512
8353996929,18cyclictest29959-21seq07:59:442
8353996927,20cyclictest25116-21seq10:04:292
8353996927,20cyclictest25116-21seq10:04:292
8353996915,23cyclictest0-21swapper/209:27:412
8353996915,23cyclictest0-21swapper/209:27:412
8353996913,19cyclictest15962-21diskmemload10:35:472
8353996913,19cyclictest15962-21diskmemload10:35:472
8341996911,28cyclictest11349-21taskset08:42:260
8353996846,16cyclictest15955-21latency_hist08:57:182
8353996827,15cyclictest15962-21diskmemload09:15:482
8341996814,31cyclictest1317-21cstates08:12:320
8341996814,31cyclictest1317-21cstates08:12:320
8341996810,23cyclictest31480-21taskset08:03:380
8341996810,23cyclictest31480-21taskset08:03:380
8353996751,12cyclictest8332-21cyclictest07:02:452
8353996749,11cyclictest0-21swapper/209:22:372
8353996747,14cyclictest352-21runrttasks10:24:502
8353996734,21cyclictest18749-21grep11:42:172
835399673,38cyclictest23843-21latency_hist07:42:182
8353996732,9cyclictest181rcu_preempt11:27:352
835399672,46cyclictest20300-21latency_hist09:57:182
835399672,46cyclictest20300-21latency_hist09:57:182
8341996751,10cyclictest298-21in:imuxsock07:17:150
8341996747,14cyclictest1035-21latency_hist08:12:170
8341996711,17cyclictest352-21runrttasks07:59:220
8353996649,10cyclictest0-21swapper/210:12:382
835399664,44cyclictest14084-21seq07:12:372
8353996626,32cyclictest19260-21awk11:42:402
8353996626,32cyclictest19260-21awk11:42:402
835399660,29cyclictest32012-21sort08:07:182
835399660,29cyclictest32012-21sort08:07:182
8361996547,11cyclictest451rcuc/312:05:183
8353996532,21cyclictest6294-21/usr/sbin/munin08:27:252
8353996532,21cyclictest6294-21/usr/sbin/munin08:27:252
8353996428,29cyclictest20346-21cat07:32:172
8361996349,9cyclictest451rcuc/310:47:423
8361996349,9cyclictest451rcuc/310:47:423
8361996249,9cyclictest451rcuc/311:50:473
8361996144,11cyclictest160532sleep310:42:503
8361996048,8cyclictest451rcuc/307:01:193
8361996048,8cyclictest451rcuc/307:01:193
8361996047,8cyclictest451rcuc/311:53:303
8361996041,12cyclictest451rcuc/309:54:563
8361996041,12cyclictest451rcuc/309:54:563
8361995945,10cyclictest451rcuc/309:59:183
8361995845,9cyclictest451rcuc/311:22:413
8361995843,10cyclictest451rcuc/310:22:453
8361995745,8cyclictest451rcuc/310:03:073
8361995745,8cyclictest451rcuc/310:03:073
8361995745,8cyclictest451rcuc/309:25:163
8361995736,15cyclictest451rcuc/308:42:323
34102570,6sleep30-21swapper/309:28:153
34102570,6sleep30-21swapper/309:28:153
8361995644,8cyclictest451rcuc/307:13:023
8361995643,9cyclictest451rcuc/309:51:113
8361995542,9cyclictest451rcuc/311:21:033
8361995542,9cyclictest451rcuc/307:12:003
8361995540,11cyclictest451rcuc/308:07:223
8361995540,10cyclictest451rcuc/309:09:393
8361995537,11cyclictest451rcuc/310:35:333
8361995537,11cyclictest451rcuc/310:35:333
8361995442,8cyclictest451rcuc/307:50:413
8361995440,9cyclictest451rcuc/308:49:083
8361995341,8cyclictest451rcuc/312:00:033
8361995341,8cyclictest451rcuc/308:17:393
8361995341,8cyclictest451rcuc/308:17:393
8361995339,10cyclictest451rcuc/309:21:023
8361995339,10cyclictest451rcuc/309:21:023
8361995338,8cyclictest451rcuc/308:53:083
8361995337,12cyclictest451rcuc/308:01:423
836199533,36cyclictest10437-21taskset11:27:433
8361995239,9cyclictest451rcuc/307:05:403
8361995238,9cyclictest451rcuc/310:14:303
8361995236,9cyclictest451rcuc/308:31:323
8361995236,9cyclictest451rcuc/308:31:323
836199523,35cyclictest3483-21taskset12:10:153
836199523,34cyclictest6018-21taskset08:27:143
836199522,38cyclictest18919-21chrt07:27:313
8361995216,25cyclictest0-21swapper/310:37:383
8361995138,9cyclictest451rcuc/312:21:473
8361995138,9cyclictest451rcuc/312:12:273
8361995138,9cyclictest451rcuc/307:25:053
8361995138,9cyclictest451rcuc/307:25:053
8361995137,9cyclictest451rcuc/311:04:493
8361995137,9cyclictest451rcuc/311:04:493
8361995136,9cyclictest451rcuc/307:37:203
8361995135,12cyclictest451rcuc/311:16:163
8361995134,10cyclictest451rcuc/308:04:303
8361995134,10cyclictest451rcuc/308:04:303
836199513,37cyclictest25718-21chrt10:58:193
8361995036,9cyclictest451rcuc/311:09:193
836199503,36cyclictest13343-21taskset11:32:413
836199503,36cyclictest13343-21taskset11:32:413
836199502,34cyclictest11426-21chrt09:42:313
836199502,34cyclictest11426-21chrt09:42:313
8361994937,8cyclictest451rcuc/312:24:473
8361994936,9cyclictest451rcuc/307:44:453
8361994936,9cyclictest451rcuc/307:44:453
8361994934,9cyclictest451rcuc/307:33:103
836199493,33cyclictest21017-21taskset09:03:593
836199492,35cyclictest23376-21taskset10:55:353
836199492,34cyclictest27307-21chrt10:07:483
836199492,33cyclictest27771-21chrt07:52:463
8361994835,9cyclictest451rcuc/308:42:143
8361994835,9cyclictest451rcuc/308:42:143
8361994834,10cyclictest451rcuc/311:46:373
8361994834,10cyclictest451rcuc/311:46:373
836199483,29cyclictest10260-21taskset09:39:593
8361994734,9cyclictest451rcuc/310:29:173
8361994733,9cyclictest451rcuc/307:19:463
836199472,30cyclictest8242-21chrt08:33:113
836199472,30cyclictest8242-21chrt08:33:113
8361994632,9cyclictest451rcuc/308:14:473
8361994632,9cyclictest451rcuc/308:14:473
8361994532,9cyclictest451rcuc/310:18:433
8361994532,9cyclictest451rcuc/310:18:433
836199453,28cyclictest18588-21chrt09:00:343
8361994428,11cyclictest451rcuc/311:38:063
836199442,30cyclictest7101-21taskset09:35:133
8361994330,9cyclictest451rcuc/309:13:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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