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2026-07-08 - 05:47
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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 all highest latencies:
System rackbslot7.osadl.org (updated Wed Jul 08, 2026 00:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
63321190,24sleep20-21swapper/218:53:152
63321190,24sleep20-21swapper/218:53:152
12829911113,24cyclictest27480-21sh00:08:350
12829911113,24cyclictest27480-21sh00:08:350
1292991096,41cyclictest21848-21ssh22:12:401
1300991083,76cyclictest13816-21sshd22:53:082
1300991083,76cyclictest13816-21sshd22:53:082
12829910841,55cyclictest0-21swapper/022:32:480
1821721060,6sleep20-21swapper/222:06:432
12829910652,48cyclictest9599-21ssh20:58:000
12829910652,48cyclictest9599-21ssh20:58:000
1282991053,29cyclictest5725-21taskset20:47:410
12829910339,57cyclictest23686-21cron21:22:290
12829910339,57cyclictest23686-21cron21:22:290
1282991032,24cyclictest12995-21/usr/sbin/munin21:57:460
12829910143,52cyclictest32486-21sh00:17:510
1282991013,39cyclictest804-21ssh21:37:430
1282991013,25cyclictest16247-21sh21:08:250
1282991012,29cyclictest13799-21diskmemload22:53:060
1282991012,29cyclictest13799-21diskmemload22:53:060
1282991012,21cyclictest23086-21latency_hist00:02:320
1300991003,78cyclictest860-21apt-get20:32:442
1282991003,22cyclictest10774-21/usr/sbin/munin22:47:520
1282991003,22cyclictest10774-21/usr/sbin/munin22:47:520
1282991003,21cyclictest19879-21fschecks_count23:02:520
1282999948,44cyclictest0-21swapper/023:57:320
128299987,24cyclictest24065-21cat00:03:040
128299982,29cyclictest8514-21fschecks_time23:37:520
128299982,21cyclictest2153-21runrttasks20:36:530
128299982,20cyclictest24223-21/usr/sbin/munin21:22:500
1282999814,26cyclictest10299-21cat21:52:530
1282999811,25cyclictest1275-21cyclictest18:57:330
1282999811,25cyclictest1275-21cyclictest18:57:330
130099973,65cyclictest31866-21apt-get00:17:432
1292999718,27cyclictest7708-21grep19:13:061
128299975,12cyclictest3530-21apt-get19:02:440
128299972,24cyclictest20975-21seq22:10:590
128299972,24cyclictest20975-21seq22:10:590
1292999636,8cyclictest0-21swapper/123:33:301
1292999635,53cyclictest0-21swapper/123:27:551
1292999635,53cyclictest0-21swapper/123:27:551
129299963,36cyclictest20099-21latency_hist23:57:331
1292999631,58cyclictest0-21swapper/121:18:011
1292999631,58cyclictest0-21swapper/121:18:011
1282999637,51cyclictest18229-21latency_hist19:47:330
128299963,24cyclictest543-21apt-key21:37:320
128299963,19cyclictest24901-21latency_hist20:07:320
128299963,19cyclictest24901-21latency_hist20:07:320
128299963,18cyclictest6774-21apt-get19:12:410
128299962,37cyclictest9250-21rm22:45:130
128299962,20cyclictest4749-21ssh23:32:070
128299962,20cyclictest4749-21ssh23:32:070
1292999537,51cyclictest8682-21diskmemload22:38:371
1292999537,51cyclictest8149-21sh23:37:341
128299954,33cyclictest14042-21latency_hist23:47:320
128299954,33cyclictest14042-21latency_hist23:47:320
128299953,29cyclictest16816-21/usr/sbin/munin22:57:480
128299952,36cyclictest31637-21apt-get23:22:420
128299952,23cyclictest31258-21sh22:27:530
1282999518,26cyclictest6188-21rm21:46:420
1282999518,26cyclictest6188-21rm21:46:420
1282999514,28cyclictest3910-21sort20:42:310
1292999436,50cyclictest0-21swapper/120:02:301
1292999433,8cyclictest0-21swapper/120:22:291
1292999427,14cyclictest0-21swapper/119:08:011
128299943,32cyclictest16320-21apt-config19:42:310
128299942,23cyclictest30197-21sh23:19:210
128299942,23cyclictest30197-21sh23:19:210
120029416,52sleep1277-21dbus-daemon18:57:311
120029416,52sleep1277-21dbus-daemon18:57:311
129299934,32cyclictest14477-21fschecks_time23:47:511
1292999325,11cyclictest0-21swapper/121:12:311
128299939,10cyclictest0-21swapper/020:32:320
128299934,8cyclictest0-21swapper/022:12:400
128299934,32cyclictest22398-21timerwakeupswit19:58:060
1282999336,49cyclictest0-21swapper/022:38:030
128299933,31cyclictest5663-21tr00:27:280
128299933,30cyclictest7548-21find21:48:040
128299933,28cyclictest18479-21cat21:12:560
128299933,28cyclictest16858-21grep22:03:070
128299933,27cyclictest14373-21df23:47:470
128299932,36cyclictest29210-21ssh00:12:430
128299932,21cyclictest18310-21apt-get19:47:390
128299932,21cyclictest18310-21apt-get19:47:390
1300999221,27cyclictest25773-21grep22:18:052
1292999229,11cyclictest0-21swapper/122:02:531
128299924,32cyclictest1469-21/usr/sbin/munin18:58:050
128299924,25cyclictest25282-21grep20:07:510
128299923,31cyclictest28094-21grep21:28:070
128299923,31cyclictest28094-21grep21:28:070
128299923,29cyclictest11603-21/usr/sbin/munin19:27:570
128299923,29cyclictest11603-21/usr/sbin/munin19:27:570
128299923,26cyclictest10564-21ps19:23:020
128299923,26cyclictest10564-21ps19:23:020
128299922,22cyclictest25940-21/usr/sbin/munin22:18:080
1282999217,64cyclictest161ktimers/020:52:400
1300999120,25cyclictest0-21swapper/220:19:512
1292999176,8cyclictest25275-21kworker/u19:0+flush-179:022:52:501
1292999176,8cyclictest25275-21kworker/u19:0+flush-179:022:52:501
129299913,40cyclictest14189-21grep19:33:071
1292999133,9cyclictest0-21swapper/122:57:451
129299912,36cyclictest30835-21/usr/sbin/munin22:27:551
128299913,32cyclictest22631-21/usr/sbin/munin23:08:060
128299913,30cyclictest19909-21/usr/sbin/munin19:52:500
128299913,30cyclictest19909-21/usr/sbin/munin19:52:500
128299913,27cyclictest28217-21/usr/sbin/munin20:17:410
128299913,26cyclictest5345-21fschecks_count19:07:500
128299912,30cyclictest8585-21fschecks_count19:17:510
129299904,32cyclictest32321-21taskset00:17:331
1292999039,46cyclictest0-21swapper/123:23:061
1292999030,8cyclictest0-21swapper/120:47:471
129299902,35cyclictest8986-21/usr/sbin/munin20:57:531
129299902,35cyclictest8986-21/usr/sbin/munin20:57:531
128299903,30cyclictest13209-21/usr/sbin/munin19:32:530
128299903,29cyclictest5429-21latency_hist20:47:310
128299903,28cyclictest26820-21taskset23:13:160
128299903,20cyclictest30057-21fschecks_count20:22:510
128299903,20cyclictest30057-21fschecks_count20:22:510
128299902,22cyclictest27837-21ssh22:22:390
128299902,20cyclictest11985-21/usr/sbin/munin21:02:400
128299902,20cyclictest11985-21/usr/sbin/munin21:02:400
1300998928,23cyclictest3687-21taskset19:02:532
1300998927,23cyclictest19603-21seq23:02:382
129299894,38cyclictest3539-21cpu19:02:491
129299894,32cyclictest19863-21latency_hist19:52:321
129299894,32cyclictest19863-21latency_hist19:52:321
129299894,32cyclictest1959-21netstat18:57:561
129299894,31cyclictest352-21runrttasks21:15:181
129299893,35cyclictest29193-21ntpq23:17:541
129299893,35cyclictest29193-21ntpq23:17:541
129299893,34cyclictest17659-21grep19:44:031
1292998928,9cyclictest0-21swapper/119:22:331
1292998926,9cyclictest0-21swapper/123:12:451
128299892,27cyclictest6274-21grep23:33:320
1300998825,27cyclictest6809-21seq22:41:472
1300998823,24cyclictest11631-21chrt21:02:232
1300998823,24cyclictest11631-21chrt21:02:232
129299884,33cyclictest23157-21/usr/sbin/munin00:02:451
1292998843,38cyclictest0-21swapper/122:37:291
129299884,31cyclictest12299-21fschecks_time21:02:531
129299884,31cyclictest12299-21fschecks_time21:02:531
129299883,33cyclictest23453-21grep23:08:021
129299883,31cyclictest13073-21fschecks_count21:57:501
129299883,30cyclictest3363-21ssh00:22:541
129299883,28cyclictest20127-21latency23:02:561
129299882,39cyclictest32056-21processes20:28:011
129299882,25cyclictest4604-21ntp_kernel_pll_20:43:111
128299883,27cyclictest26903-21fschecks_time20:12:590
129299874,35cyclictest352-21runrttasks21:28:591
129299874,35cyclictest352-21runrttasks21:28:591
1292998734,46cyclictest0-21swapper/119:37:511
129299873,31cyclictest7062-21fschecks_count21:47:511
1292998731,8cyclictest0-21swapper/100:17:421
129299872,33cyclictest30457-21grep20:23:021
129299872,33cyclictest30457-21grep20:23:021
129299872,33cyclictest19122-21fschecks_time22:07:511
129299872,33cyclictest19122-21fschecks_time22:07:511
1309998623,32cyclictest0-21swapper/321:37:453
1300998629,38cyclictest0-21swapper/221:23:052
1300998623,34cyclictest0-21swapper/223:33:192
1300998622,44cyclictest352-21runrttasks00:11:242
1300998622,44cyclictest352-21runrttasks00:11:242
1300998618,29cyclictest0-21swapper/223:17:512
1300998618,29cyclictest0-21swapper/223:17:512
129299864,31cyclictest352-21runrttasks20:52:441
129299863,39cyclictest29122-21latency_hist00:12:321
129299863,33cyclictest26563-21/usr/sbin/munin20:13:081
129299863,30cyclictest24356-21unixbench_singl20:03:291
129299863,30cyclictest24356-21unixbench_singl20:03:291
129299863,28cyclictest1554-21sendmail_mailtr20:33:211
129299863,28cyclictest10680-21grep21:53:021
1292998627,8cyclictest0-21swapper/121:33:041
1292998625,12cyclictest0-21swapper/119:27:321
1292998625,12cyclictest0-21swapper/119:27:321
129299862,38cyclictest3400-21timerwakeupswit20:38:451
129299862,36cyclictest10289-21latency_hist22:47:321
129299862,33cyclictest19909-21/usr/sbin/munin19:53:071
129299862,33cyclictest19909-21/usr/sbin/munin19:53:071
1300998536,32cyclictest10394-21sh23:41:112
129299854,33cyclictest26300-21ssh21:26:261
129299854,31cyclictest352-21runrttasks22:19:421
129299853,30cyclictest28879-21latency_hist00:12:311
129299853,30cyclictest11843-21cut19:27:501
129299853,30cyclictest11843-21cut19:27:501
129299853,29cyclictest13086-21latency_hist22:52:311
129299853,29cyclictest13086-21latency_hist22:52:311
1292998514,23cyclictest13054-21diskmemload23:45:161
1292998514,23cyclictest13054-21diskmemload23:45:161
1300998440,32cyclictest0-21swapper/220:27:402
1300998415,31cyclictest0-21swapper/220:23:032
1300998415,31cyclictest0-21swapper/220:23:032
129299844,29cyclictest4469-21proc_pri21:43:021
129299844,29cyclictest4469-21proc_pri21:43:021
129299844,29cyclictest26801-21/usr/sbin/munin20:12:581
129299843,38cyclictest28108-21fschecks_time22:22:501
129299843,30cyclictest23037-21latency_hist00:02:321
1300998360,15cyclictest2374-21systemd-journal21:50:082
129299832,25cyclictest1708-21sh21:38:181
1300998225,26cyclictest5037-21seq00:25:512
1300998224,27cyclictest11947-21taskset22:49:182
1300998224,27cyclictest11947-21taskset22:49:182
1300998222,22cyclictest352-21runrttasks22:00:412
1300998221,29cyclictest0-21swapper/221:21:252
1300998221,29cyclictest0-21swapper/221:21:252
1300998125,20cyclictest2614-21seq18:59:522
1300998124,25cyclictest13440-21seq21:04:032
1300998124,25cyclictest13440-21seq21:04:032
1300998117,29cyclictest12112-21cat23:43:042
1300998117,29cyclictest12112-21cat23:43:042
1300998116,29cyclictest0-21swapper/219:57:412
130099805,47cyclictest8682-21diskmemload21:37:572
1300998035,35cyclictest0-21swapper/219:52:402
1300998035,35cyclictest0-21swapper/219:52:402
130099803,51cyclictest402-21ssh21:37:312
1300998020,23cyclictest15817-21grep21:08:052
1300997936,27cyclictest5168-21apt-get19:07:442
1300997927,22cyclictest27420-21seq23:14:582
130099792,51cyclictest8682-21diskmemload22:07:512
130099792,51cyclictest8682-21diskmemload22:07:512
1300997922,27cyclictest0-21swapper/222:43:162
1300997840,31cyclictest0-21swapper/220:12:432
1300997819,24cyclictest0-21swapper/222:24:342
1300997747,21cyclictest5143-21apt-get23:32:442
1300997747,21cyclictest5143-21apt-get23:32:442
1300997727,22cyclictest7764-21seq19:13:082
1300997637,28cyclictest0-21swapper/220:47:412
1300997636,29cyclictest27030-21apt-get21:27:452
1300997636,29cyclictest27030-21apt-get21:27:452
1300997625,24cyclictest22676-21seq00:01:592
1300997622,20cyclictest24062-21chrt23:08:562
1300997522,25cyclictest17940-21seq22:58:412
255872740,3sleep30-21swapper/322:18:033
1300997454,14cyclictest18935-21sh21:13:062
1300997426,19cyclictest31791-21timerandwakeup22:28:082
1300997423,22cyclictest31374-21ssh00:16:082
1300997422,26cyclictest0-21swapper/221:56:482
1300997418,24cyclictest18018-21sed23:53:032
1300997411,27cyclictest12249-21systemctl19:28:012
1300997411,27cyclictest12249-21systemctl19:28:012
1300997321,22cyclictest8724-21ssh20:57:302
1300997245,20cyclictest1406-21apt-get22:32:452
1300997224,18cyclictest907-21seq23:24:512
124932720,8sleep30-21swapper/321:02:573
124932720,8sleep30-21swapper/321:02:573
146272710,8sleep214631-21sh23:47:552
1300997146,18cyclictest23376-21apt-get20:03:072
1300997146,18cyclictest23376-21apt-get20:03:072
130999706,41cyclictest0-21swapper/322:52:453
130999706,41cyclictest0-21swapper/322:52:453
1300997035,25cyclictest21842-21apt-get22:12:452
130099703,45cyclictest15083-21fschecks_time19:37:502
1300997031,28cyclictest4328-21grep20:43:052
1300997027,30cyclictest13493-21fschecks_time19:32:532
1300996923,35cyclictest352-21runrttasks20:17:202
1300996916,22cyclictest0-21swapper/200:02:542
1300996911,41cyclictest0-21swapper/219:17:442
1300996730,27cyclictest18755-21/usr/sbin/munin19:47:542
1300996730,27cyclictest18755-21/usr/sbin/munin19:47:542
1300996728,27cyclictest10083-21/usr/sbin/munin19:22:472
1300996728,27cyclictest10083-21/usr/sbin/munin19:22:472
1300996626,33cyclictest3808-21apt-get21:42:452
1300996626,33cyclictest3808-21apt-get21:42:452
130099662,34cyclictest3815-21modprobe20:42:292
1300996622,36cyclictest352-21runrttasks19:46:592
130999648,38cyclictest865-21chrt20:32:423
130999598,26cyclictest0-21swapper/300:17:433
117932580,15sleep3451rcuc/323:42:583
117932580,15sleep3451rcuc/323:42:583
130999574,40cyclictest15217-21chrt23:48:083
130999562,40cyclictest19868-21chrt23:57:293
130999558,29cyclictest0-21swapper/320:02:433
130999558,29cyclictest0-21swapper/320:02:433
130999557,34cyclictest0-21swapper/319:43:013
130999553,39cyclictest28153-21taskset21:28:103
130999553,39cyclictest28153-21taskset21:28:103
130999553,33cyclictest23294-21chrt20:02:333
130999544,38cyclictest18936-21chrt21:13:063
130999544,36cyclictest5645-21chrt19:07:573
1309995437,12cyclictest451rcuc/322:45:363
130999543,37cyclictest27967-21chrt22:22:453
130999542,39cyclictest27224-21taskset23:14:243
130999533,40cyclictest9209-21chrt20:57:503
130999533,40cyclictest9209-21chrt20:57:503
130999532,38cyclictest27696-21chrt00:09:123
130999532,38cyclictest27696-21chrt00:09:123
130999524,35cyclictest13409-21taskset19:32:523
130999524,34cyclictest6046-21chrt22:39:393
1309995240,8cyclictest451rcuc/320:32:313
1309995238,10cyclictest451rcuc/319:17:403
130999523,36cyclictest30058-21taskset00:13:053
130999523,35cyclictest2392-21chrt18:58:043
130999523,31cyclictest19893-21chrt19:52:323
130999522,38cyclictest5923-21taskset21:45:573
130999522,38cyclictest5923-21taskset21:45:573
130999522,37cyclictest25089-21chrt23:11:493
130999514,34cyclictest29150-21chrt23:17:533
130999514,34cyclictest29150-21chrt23:17:533
130999513,37cyclictest21664-21chrt23:05:413
130999513,36cyclictest25930-21chrt21:25:233
130999513,36cyclictest19427-21chrt22:07:583
130999513,36cyclictest19427-21chrt22:07:583
130999513,35cyclictest8642-21chrt23:37:553
130999513,35cyclictest21659-21chrt23:59:073
130999513,35cyclictest11761-21taskset22:48:473
130999513,35cyclictest11761-21taskset22:48:473
130999513,34cyclictest13856-21chrt21:58:053
130999512,37cyclictest18469-21chrt22:07:253
130999504,36cyclictest28927-21chrt20:18:043
130999503,37cyclictest31679-21taskset21:34:393
130999503,36cyclictest8244-21taskset20:53:043
130999503,35cyclictest32624-21chrt22:29:583
1309995028,14cyclictest451rcuc/320:16:273
130999502,36cyclictest5057-21taskset19:07:323
130999502,35cyclictest18301-21taskset22:59:413
130999502,34cyclictest4161-21chrt20:42:593
130999502,29cyclictest11574-21taskset19:27:333
130999502,29cyclictest11574-21taskset19:27:333
130999493,37cyclictest5651-21chrt00:27:283
130999493,33cyclictest7584-21taskset21:48:043
130999492,34cyclictest18991-21taskset19:48:033
130999492,33cyclictest3975-21chrt23:29:573
130999492,33cyclictest3975-21chrt23:29:573
130999483,32cyclictest10156-21chrt21:52:503
130999482,38cyclictest25519-21taskset00:06:323
130999482,34cyclictest780-21taskset23:24:303
130999482,34cyclictest7178-21chrt19:12:553
130999482,33cyclictest22023-21taskset21:18:093
130999482,33cyclictest22023-21taskset21:18:093
130999482,32cyclictest15262-21chrt19:37:543
130999473,31cyclictest21841-21chrt22:12:403
130999472,35cyclictest16432-21chrt21:08:573
130999472,33cyclictest3506-21chrt22:35:543
130999472,32cyclictest7930-21chrt23:37:303
130999462,30cyclictest13075-21taskset19:32:313
130999462,30cyclictest13075-21taskset19:32:313
326372459,22sleep30-21swapper/318:53:003
326372459,22sleep30-21swapper/318:53:003
130999452,27cyclictest31402-21chrt20:27:323
130999452,27cyclictest31402-21chrt20:27:323
1309994429,10cyclictest451rcuc/320:50:303
1309994424,13cyclictest451rcuc/320:42:113
1309994328,9cyclictest451rcuc/320:12:383
130999423,25cyclictest20731-21chrt19:53:093
130999423,25cyclictest20731-21chrt19:53:093
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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