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2026-07-16 - 17:05
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackbslot6.osadl.org (updated Thu Jul 16, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2310521860,4sleep22487099cyclictest13:58:522
1406621830,4sleep32487699cyclictest14:20:373
1068911060,4ptp4l401ktimersoftd/309:06:303
106891700,1ptp4l401ktimersoftd/309:12:403
316392650,2sleep30-21swapper/310:29:443
238922650,1sleep20-21swapper/211:14:512
106891640,2ptp4l401ktimersoftd/309:41:433
106891640,2ptp4l401ktimersoftd/309:41:433
24870996249,6cyclictest33-21ksoftirqd/213:04:462
120602620,4sleep02486099cyclictest09:49:300
24870996148,5cyclictest33-21ksoftirqd/209:34:422
318302600,4sleep341-21ksoftirqd/312:29:163
24870996046,6cyclictest33-21ksoftirqd/212:19:462
246152604,10sleep10-21swapper/109:07:361
24870995933,3cyclictest33-21ksoftirqd/210:20:012
2486099579,17cyclictest23554-21sh12:53:330
2486099579,16cyclictest24166-21/usr/sbin/munin12:20:020
2486099568,17cyclictest24987-21ssh11:15:030
98072550,4sleep02486099cyclictest13:11:280
264702550,4sleep02486099cyclictest09:09:560
24870995543,5cyclictest33-21ksoftirqd/213:09:482
106891550,1ptp4l401ktimersoftd/311:48:443
24870995443,5cyclictest33-21ksoftirqd/211:59:462
2486099547,17cyclictest17783-21diskmemload12:08:110
2486099546,17cyclictest29222-21cat14:04:500
2486099538,10cyclictest28950-21ssh12:59:200
106891530,1ptp4l401ktimersoftd/312:52:563
2486099528,9cyclictest28315-21snmp_o5powerctl13:30:010
2486099528,18cyclictest12730-21apt-get12:09:460
2486099528,14cyclictest16447-21ssh13:19:220
2486099528,14cyclictest16447-21ssh13:19:220
2486099528,12cyclictest17274-21cstates13:19:490
2486099527,13cyclictest3936-21grep10:39:450
2486099527,12cyclictest23603-21latency_hist13:59:360
2486099526,16cyclictest2861-21ssh13:37:560
247202524,36sleep20-21swapper/209:08:582
24865995113,23cyclictest11170-21sh14:19:051
2486099518,9cyclictest28157-21apt-get09:14:420
2486099518,9cyclictest19640-21snmp_o5powerctl11:09:560
2486099518,8cyclictest5593-21/usr/sbin/munin13:39:580
2486099518,17cyclictest22447-21/usr/sbin/munin13:24:510
2486099518,14cyclictest13180-21ssh13:48:410
2486099518,11cyclictest12536-21if_err_enp1s014:19:520
2486099517,13cyclictest5711-21ssh13:07:510
2486099516,15cyclictest17783-21diskmemload14:00:490
2486099516,14cyclictest10969-21apt-get10:54:450
2486099515,16cyclictest14735-21apt-get12:44:470
2486099508,8cyclictest12345-21apt-get09:49:410
2486099507,8cyclictest24410-21apt-get10:14:440
2486099507,8cyclictest14109-21apt-get13:49:470
2486099507,14cyclictest17783-21diskmemload13:00:070
2486099507,13cyclictest26130-21irqrtprio11:49:500
2486099507,12cyclictest15459-21irqrtprio09:54:510
2486099507,11cyclictest17783-21diskmemload12:30:150
2486099506,17cyclictest17783-21diskmemload12:03:010
24870994942,3cyclictest33-21ksoftirqd/214:04:412
24870994939,4cyclictest33-21ksoftirqd/210:39:442
24870994932,3cyclictest33-21ksoftirqd/213:35:032
24865994914,29cyclictest47050irq/101-ens3-Tx14:24:481
2486099498,9cyclictest6333-21smart_sda12:34:590
2486099498,9cyclictest21871-21sendmail_mailst11:44:560
2486099498,8cyclictest20265-21/usr/sbin/munin10:04:500
2486099497,9cyclictest17097-21apt09:59:420
2486099497,8cyclictest29174-21apt-get10:24:420
2486099497,8cyclictest10666-21apt-get11:34:450
2486099497,10cyclictest17783-21diskmemload11:24:500
2486099497,10cyclictest17783-21diskmemload11:24:500
2486099496,12cyclictest17783-21diskmemload14:17:500
2486099496,11cyclictest30549-21apt-get09:19:440
2486099496,11cyclictest17783-21diskmemload14:28:460
2486099495,16cyclictest17783-21diskmemload12:26:180
106891490,1ptp4l401ktimersoftd/311:12:353
2487099487,7cyclictest33-21ksoftirqd/214:19:502
24870994838,4cyclictest33-21ksoftirqd/213:29:472
24870994834,3cyclictest33-21ksoftirqd/211:29:332
24870994834,3cyclictest33-21ksoftirqd/211:29:332
24870994830,8cyclictest33-21ksoftirqd/212:54:472
2486099488,9cyclictest1871-21fw_packets10:34:480
2486099488,8cyclictest8862-21diskstats10:49:450
2486099487,12cyclictest18991-21chrt12:14:550
2486099486,16cyclictest17783-21diskmemload11:33:200
2486099486,16cyclictest17783-21diskmemload11:33:200
24870994725,3cyclictest33-21ksoftirqd/209:39:432
24870994725,3cyclictest33-21ksoftirqd/209:39:432
24870994721,4cyclictest33-21ksoftirqd/214:31:332
2486099478,9cyclictest7572-21python10:44:550
2486099478,8cyclictest14679-21mailstats10:59:550
2486099477,15cyclictest15972-21df11:04:450
2486099477,10cyclictest17783-21diskmemload11:55:230
2486099476,8cyclictest31539-21apt-get10:29:430
2486099476,8cyclictest22041-21apt-get10:09:430
2486099476,17cyclictest17435-21unixbench_singl11:40:040
106891470,2ptp4l12903-21kworker/3:112:32:583
2487099465,3cyclictest33-21ksoftirqd/213:44:562
24870994624,10cyclictest33-21ksoftirqd/213:20:432
24870994623,3cyclictest33-21ksoftirqd/210:34:572
24870994622,4cyclictest33-21ksoftirqd/213:39:412
24870994622,4cyclictest33-21ksoftirqd/212:32:402
24870994622,4cyclictest33-21ksoftirqd/211:55:582
24870994620,4cyclictest33-21ksoftirqd/212:10:222
24870994619,4cyclictest33-21ksoftirqd/213:15:042
24870994619,4cyclictest33-21ksoftirqd/213:15:042
2486099468,16cyclictest28107-21grep11:19:450
2486099466,17cyclictest17783-21diskmemload12:43:310
24870994538,3cyclictest33-21ksoftirqd/214:14:412
24870994521,4cyclictest33-21ksoftirqd/211:12:142
24870994520,4cyclictest33-21ksoftirqd/213:59:502
2486099458,16cyclictest8908-21mailstats09:39:520
2486099458,16cyclictest8908-21mailstats09:39:520
2486099457,8cyclictest3103-21df09:29:420
24870994421,4cyclictest33-21ksoftirqd/213:53:182
24870994421,4cyclictest33-21ksoftirqd/210:29:542
24870994420,4cyclictest33-21ksoftirqd/214:36:012
24870994420,4cyclictest33-21ksoftirqd/212:04:562
24870994420,4cyclictest33-21ksoftirqd/211:40:162
24870994420,4cyclictest33-21ksoftirqd/211:30:542
24870994420,4cyclictest33-21ksoftirqd/211:30:542
24870994420,3cyclictest33-21ksoftirqd/212:45:512
24870994419,4cyclictest33-21ksoftirqd/214:25:112
24870994419,4cyclictest33-21ksoftirqd/212:35:432
24870994419,4cyclictest33-21ksoftirqd/212:26:192
24870994419,4cyclictest33-21ksoftirqd/212:15:362
24870994419,4cyclictest33-21ksoftirqd/211:51:482
24870994410,8cyclictest33-21ksoftirqd/211:39:332
2486599443,10cyclictest25416-21apt-get11:49:441
2486099447,9cyclictest27132-21fschecks_time10:19:470
2486099447,17cyclictest23214-21snmp_o5powerctl14:30:030
2486099446,8cyclictest17783-21diskmemload14:37:250
2271224411,19sleep022863-21cstates09:04:400
2487099434,4cyclictest121rcu_preempt11:20:002
24870994333,6cyclictest33-21ksoftirqd/211:04:442
24870994329,11cyclictest33-21ksoftirqd/214:10:072
24870994317,4cyclictest33-21ksoftirqd/210:15:012
24870994314,10cyclictest33-21ksoftirqd/212:49:582
24870994312,9cyclictest33-21ksoftirqd/209:19:542
2486099437,14cyclictest4771-21ssh14:11:560
106891430,1ptp4l401ktimersoftd/311:34:183
106891430,1ptp4l401ktimersoftd/311:34:183
24870994232,3cyclictest33-21ksoftirqd/210:24:522
24870994219,4cyclictest33-21ksoftirqd/211:45:142
24870994218,4cyclictest33-21ksoftirqd/213:29:062
24870994218,4cyclictest33-21ksoftirqd/213:03:322
24870994211,9cyclictest33-21ksoftirqd/210:49:322
106891420,2ptp4l12903-21kworker/3:113:25:573
106891420,1ptp4l401ktimersoftd/313:38:093
2487099413,8cyclictest33-21ksoftirqd/212:40:042
24870994128,3cyclictest33-21ksoftirqd/209:49:452
2487099412,6cyclictest27192-21munin-run09:14:292
24870994112,10cyclictest33-21ksoftirqd/209:29:582
24870994110,7cyclictest33-21ksoftirqd/209:24:422
106891410,15ptp4l401ktimersoftd/311:59:333
2487099404,3cyclictest33-21ksoftirqd/209:14:472
24870994011,5cyclictest33-21ksoftirqd/209:54:462
24870994010,6cyclictest33-21ksoftirqd/209:59:592
2486599402,33cyclictest0-21swapper/114:29:481
106891400,2ptp4l18876-21kworker/3:210:24:573
2487099399,6cyclictest33-21ksoftirqd/209:44:482
2487099398,9cyclictest33-21ksoftirqd/210:54:542
24870993921,4cyclictest33-21ksoftirqd/210:50:002
24870993919,9cyclictest33-21ksoftirqd/210:04:532
2486599393,7cyclictest0-21swapper/113:14:461
2486599393,7cyclictest0-21swapper/113:14:461
2486599393,7cyclictest0-21swapper/109:19:431
2486599392,5cyclictest0-21swapper/113:49:461
2486599392,5cyclictest0-21swapper/109:09:411
145291390,3phc2sys121rcu_preempt14:09:373
106891390,1ptp4l401ktimersoftd/313:42:093
106891390,1ptp4l401ktimersoftd/311:15:443
2486599384,27cyclictest10676-21ssh11:34:451
2486599382,6cyclictest0-21swapper/110:14:441
2486599382,5cyclictest0-21swapper/110:29:421
2486599381,3cyclictest0-21swapper/110:59:521
2486099385,9cyclictest6573-21snmp_o5powerctl09:34:550
106891380,2ptp4l18876-21kworker/3:211:54:143
106891380,1ptp4l401ktimersoftd/313:44:483
106891380,1ptp4l401ktimersoftd/313:29:483
106891380,1ptp4l401ktimersoftd/312:47:423
106891380,1ptp4l401ktimersoftd/312:37:333
106891380,1ptp4l401ktimersoftd/312:18:473
106891380,1ptp4l401ktimersoftd/312:00:163
106891380,1ptp4l401ktimersoftd/311:44:063
24870993730,3cyclictest33-21ksoftirqd/210:59:512
2486599373,7cyclictest32420-21apt-get12:29:451
2486599373,5cyclictest9824-21apt-get12:39:461
2486599372,6cyclictest17013-21apt-get13:19:471
2486599372,5cyclictest0-21swapper/109:14:411
106891370,1ptp4l401ktimersoftd/314:24:463
106891370,1ptp4l401ktimersoftd/313:53:023
106891370,1ptp4l401ktimersoftd/313:21:233
106891370,1ptp4l401ktimersoftd/313:14:313
106891370,1ptp4l401ktimersoftd/313:05:023
106891370,1ptp4l401ktimersoftd/312:59:443
106891370,1ptp4l401ktimersoftd/312:40:493
106891370,1ptp4l401ktimersoftd/311:25:193
106891370,1ptp4l401ktimersoftd/311:25:193
106891370,1ptp4l401ktimersoftd/311:20:293
106891370,1ptp4l401ktimersoftd/309:34:413
106891370,1ptp4l401ktimersoftd/309:20:243
106891370,0ptp4l401ktimersoftd/313:17:083
106891370,0ptp4l401ktimersoftd/313:17:083
314902360,5sleep12486599cyclictest14:05:581
2486599369,4cyclictest29273-21tail12:25:031
2486599363,6cyclictest449-21apt-get09:24:411
2486599363,6cyclictest26703-21apt-get14:34:491
2486599363,5cyclictest0-21swapper/110:54:451
2486599362,5cyclictest0-21swapper/110:24:421
24865993613,3cyclictest26328-21sh14:00:551
24865993613,20cyclictest11068-21sh12:07:261
24865993610,4cyclictest28978-21sed11:19:511
24865993610,4cyclictest17958-21latency_hist11:09:321
24865993610,3cyclictest17460-21fschecks_time09:59:471
106891360,1ptp4l401ktimersoftd/314:06:413
106891360,0ptp4l401ktimersoftd/311:38:163
2487099351,11cyclictest24107-21munin-run10:14:312
2486599352,7cyclictest2857-21apt-get09:29:401
2486599352,7cyclictest1839-21apt-get14:09:501
2486599351,11cyclictest12285-21cut14:19:501
106891350,1ptp4l401ktimersoftd/314:00:233
106891350,0ptp4l401ktimersoftd/314:32:263
2486599343,5cyclictest8603-21apt-get10:49:421
2486599343,5cyclictest23119-21apt-get11:14:441
2486599342,6cyclictest19649-21apt-get12:49:461
2486599342,6cyclictest0-21swapper/109:44:421
24865993420,11cyclictest25-21ksoftirqd/110:39:431
24865993413,18cyclictest11499-21sh13:45:501
2486599341,30cyclictest8600-21ssh13:44:161
24865993412,3cyclictest15538-21/usr/sbin/munin11:39:491
24865993412,3cyclictest12267-21/usr/sbin/munin09:49:501
24865993411,3cyclictest987-21sshd11:31:011
24865993411,3cyclictest987-21sshd11:31:011
24865993411,3cyclictest24240-21sh13:25:521
2486599341,10cyclictest24829-21df12:54:481
24865993410,4cyclictest27864-21cat13:29:551
24865993410,3cyclictest23146-21phc2sys10:09:521
20852340,3sleep12486599cyclictest13:04:391
106891340,1ptp4l401ktimersoftd/312:10:333
106891330,2ptp4l6734-21kworker/3:012:06:193
106891330,1ptp4l401ktimersoftd/314:39:033
106891330,1ptp4l401ktimersoftd/310:52:213
106891330,1ptp4l401ktimersoftd/309:59:553
106891330,0ptp4l401ktimersoftd/310:49:283
2486599329,3cyclictest18079-21sh11:09:391
2486599327,7cyclictest29958-21gltestperf12:59:501
2486599327,3cyclictest6524-21fschecks_count10:44:471
2486599325,8cyclictest0-21swapper/112:13:201
2486599325,8cyclictest0-21swapper/111:58:021
2486599321,7cyclictest7613-21apt-get09:39:421
2486599321,7cyclictest7613-21apt-get09:39:421
24865993212,4cyclictest23900-21grep12:19:561
24865993210,4cyclictest47050irq/101-ens3-Tx13:34:411
24865993210,3cyclictest241ktimersoftd/112:15:171
24865993210,3cyclictest20553-21cat13:55:031
106891320,1ptp4l401ktimersoftd/314:15:543
106891320,1ptp4l401ktimersoftd/313:58:213
106891320,1ptp4l401ktimersoftd/312:55:333
106891320,1ptp4l401ktimersoftd/311:07:543
106891320,1ptp4l401ktimersoftd/311:01:523
106891320,1ptp4l401ktimersoftd/310:56:373
106891320,1ptp4l401ktimersoftd/310:14:343
106891320,1ptp4l401ktimersoftd/309:50:463
2486599318,3cyclictest5670-21irqrtprio12:34:541
2486599312,8cyclictest19816-21grep10:04:451
2486599310,9cyclictest2773-21mailstats10:34:541
2486599310,4cyclictest16706-21rm12:45:151
106891310,1ptp4l401ktimersoftd/310:08:513
106891310,0ptp4l401ktimersoftd/310:44:273
2486599300,13cyclictest0-21swapper/112:00:011
2486599299,4cyclictest17783-21diskmemload13:13:201
2486599291,9cyclictest2341-21grep11:25:011
2486599291,9cyclictest2341-21grep11:25:011
2486599291,7cyclictest22806-21runrttasks11:45:491
106891290,1ptp4l401ktimersoftd/310:22:443
24876992821,4cyclictest41-21ksoftirqd/309:44:353
2486599285,20cyclictest16782-21latency_hist09:59:301
24876992720,4cyclictest41-21ksoftirqd/310:11:213
2486599274,4cyclictest0-21swapper/110:19:481
24860992712,11cyclictest0-21swapper/009:24:410
106891270,1ptp4l401ktimersoftd/310:39:303
24876992621,3cyclictest41-21ksoftirqd/309:54:483
24876992518,4cyclictest41-21ksoftirqd/309:28:583
106891240,1ptp4l401ktimersoftd/312:19:493
106891230,1ptp4l401ktimersoftd/309:29:453
106891230,1ptp4l401ktimersoftd/309:14:453
24865992114,4cyclictest6658-21threads09:34:571
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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