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2026-09-01 - 18:44
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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 all highest latencies:
System rackbslot6.osadl.org (updated Tue Sep 01, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2663921650,5sleep12355799cyclictest11:45:291
923021490,4sleep12355799cyclictest13:39:321
1068911000,3ptp4l401ktimersoftd/309:34:493
169042700,3sleep016889-21apt-get11:35:410
240852660,1sleep30-21swapper/309:35:403
202382660,5sleep320237-21missed_timers14:55:543
17172650,4sleep0101ktimersoftd/009:55:400
308992590,3sleep30-21swapper/312:21:253
2355299567,17cyclictest762-21runrttasks12:56:430
75672550,3sleep2321ktimersoftd/213:36:402
2355299535,17cyclictest6627-21/usr/sbin/munin12:30:470
209222530,2sleep10-21swapper/114:24:331
2355299523,18cyclictest26639-21cat09:40:300
2355299503,14cyclictest13501-21ssh12:36:590
2355299486,11cyclictest22108-1kworker/u9:214:58:140
2355299484,14cyclictest21903-21ssh13:19:180
2355299483,17cyclictest17044-21ssh12:07:520
2355299483,14cyclictest7915-21ssh14:43:480
2355299474,8cyclictest17017-21apt-get14:20:450
2355299473,14cyclictest30153-21ssh12:55:150
2355299473,14cyclictest23063-21ssh12:14:480
2355299473,14cyclictest14223-21ssh13:44:420
2355299473,14cyclictest13470-21ssh12:05:120
2355299472,17cyclictest29345-21ssh11:47:050
2355299472,16cyclictest16476-21diskmemload13:21:380
2355299464,9cyclictest4894-21snmp_o5powerctl13:00:580
2355299464,9cyclictest20631-21/usr/sbin/munin13:50:490
2355299464,8cyclictest6357-21/usr/sbin/munin11:10:550
2355299463,9cyclictest22237-21sendmail_mailqu12:45:510
2355299463,8cyclictest26850-21apt-get14:30:460
2355299463,14cyclictest9452-21ssh14:11:410
2355299463,11cyclictest16476-21diskmemload14:05:570
2355299453,9cyclictest31774-21apt-get11:50:420
2355299453,8cyclictest12049-21apt-get11:25:390
2355299453,16cyclictest4038-21latency_hist14:40:330
2355299453,14cyclictest6769-21ssh11:57:080
2355299443,9cyclictest32257-21irqrtprio09:50:440
2355299443,9cyclictest28798-21apt-get12:20:410
2355299443,9cyclictest12828-21munin-run13:10:310
2355299443,9cyclictest10546-21phc2sys14:45:530
2355299443,17cyclictest16476-21diskmemload12:43:380
2355299443,11cyclictest16476-21diskmemload14:26:100
2355299442,14cyclictest16476-21diskmemload12:26:130
2355299442,11cyclictest16476-21diskmemload13:14:000
106891440,0ptp4l401ktimersoftd/312:05:333
2355299434,17cyclictest5263-21snmp_o5powerctl10:00:530
2355299433,9cyclictest23269-21python11:40:520
2355299433,8cyclictest18160-21apt-get10:30:390
2355299433,11cyclictest16476-21diskmemload13:39:090
2355299433,10cyclictest16476-21diskmemload14:19:050
2355299432,8cyclictest20523-21apt-get10:35:390
2355299432,16cyclictest16476-21diskmemload13:33:210
2355299424,8cyclictest3897-21sensors_temp11:05:520
2355299424,8cyclictest3897-21sensors_temp11:05:520
2355299423,17cyclictest16476-21diskmemload13:27:580
2355299422,18cyclictest9336-21tr10:10:470
2355299422,11cyclictest16476-21diskmemload15:00:580
2355299413,9cyclictest15565-21ssh14:50:550
2355299413,8cyclictest30679-21ssh09:45:560
2355299413,11cyclictest16476-21diskmemload13:57:380
2355299412,16cyclictest16476-21diskmemload13:48:120
2355299412,16cyclictest16476-21diskmemload12:18:340
2355299403,8cyclictest10179-21if_enp1s011:20:460
2355299401,13cyclictest15855-21ssh11:30:580
106891400,1ptp4l401ktimersoftd/311:45:523
2355299393,8cyclictest29308-21ssh10:50:560
2355299391,8cyclictest16476-21diskmemload14:01:390
217092394,21sleep221840-21gltestperf09:30:442
106891390,1ptp4l401ktimersoftd/313:11:493
23568993813,3cyclictest12432-21sed10:15:553
23568993812,4cyclictest9199-21cut13:05:503
23568993811,4cyclictest16173-21cut10:25:433
23568993811,3cyclictest7988-21cut14:10:523
2355299382,8cyclictest14282-21irqstats10:20:440
106891380,1ptp4l401ktimersoftd/314:39:093
106891380,1ptp4l401ktimersoftd/314:29:293
106891380,1ptp4l401ktimersoftd/314:25:053
106891380,1ptp4l401ktimersoftd/314:16:593
106891380,1ptp4l401ktimersoftd/313:41:553
106891380,1ptp4l401ktimersoftd/313:34:493
106891380,1ptp4l401ktimersoftd/313:23:053
106891380,1ptp4l401ktimersoftd/312:25:413
106891380,1ptp4l401ktimersoftd/311:55:053
106891380,1ptp4l401ktimersoftd/311:40:493
106891380,1ptp4l401ktimersoftd/311:38:263
106891380,1ptp4l401ktimersoftd/309:40:543
23568993713,4cyclictest4662-21phc2sys-jitter13:00:553
224902373,4sleep233-21ksoftirqd/212:13:502
106891370,1ptp4l401ktimersoftd/315:00:383
106891370,1ptp4l401ktimersoftd/314:45:553
106891370,1ptp4l401ktimersoftd/314:31:083
106891370,1ptp4l401ktimersoftd/314:07:353
106891370,1ptp4l401ktimersoftd/314:02:483
106891370,1ptp4l401ktimersoftd/313:47:413
106891370,1ptp4l401ktimersoftd/313:27:383
106891370,1ptp4l401ktimersoftd/313:16:233
106891370,1ptp4l401ktimersoftd/312:56:353
106891370,1ptp4l401ktimersoftd/312:52:453
106891370,1ptp4l401ktimersoftd/312:36:553
106891370,0ptp4l401ktimersoftd/312:12:233
106891370,0ptp4l401ktimersoftd/310:36:003
106891360,1ptp4l401ktimersoftd/313:55:393
106891360,1ptp4l401ktimersoftd/313:36:553
106891360,1ptp4l401ktimersoftd/312:45:433
106891360,1ptp4l401ktimersoftd/312:17:083
106891360,1ptp4l401ktimersoftd/312:02:003
106891360,1ptp4l401ktimersoftd/311:58:053
106891360,0ptp4l401ktimersoftd/312:43:073
106891350,0ptp4l401ktimersoftd/314:53:503
23568993413,3cyclictest8339-21sh14:44:313
2344823414,8sleep10-21swapper/109:35:231
23568993311,3cyclictest985-21sed11:00:483
23568993310,3cyclictest28263-21grep10:50:443
2355299335,16cyclictest31768-21timerwakeupswit10:55:570
106891320,0ptp4l401ktimersoftd/310:42:103
2356899319,3cyclictest26970-21uptime10:45:563
23568993110,3cyclictest11241-21sed11:20:583
219382310,6sleep00-21swapper/009:30:450
106891310,0ptp4l401ktimersoftd/313:51:033
274232300,3sleep10-21swapper/109:40:441
2356899308,4cyclictest14787-21switchtime10:20:523
2355299304,8cyclictest32606-21cpu11:00:430
106891300,0ptp4l401ktimersoftd/311:17:573
2356899291,8cyclictest14421-21apt-get11:30:423
2355799295,14cyclictest29827-21ssh14:00:441
2355799293,2cyclictest121rcu_preempt14:54:071
23557992922,4cyclictest25-21ksoftirqd/113:20:441
2355299293,9cyclictest11425-21perl10:15:430
2355299291,18cyclictest0-21swapper/010:25:400
11982290,1sleep20-21swapper/211:00:502
2356899283,6cyclictest2565-21apt-get11:05:413
2356899283,6cyclictest2565-21apt-get11:05:413
2356299284,13cyclictest2683-21sendmail-mta09:35:362
2356299281,3cyclictest121rcu_preempt11:56:072
23557992823,3cyclictest25-21ksoftirqd/112:40:491
2355299284,8cyclictest26330-21/usr/sbin/munin10:45:480
23562992721,3cyclictest33-21ksoftirqd/214:22:172
23562992720,4cyclictest33-21ksoftirqd/213:44:482
23562992720,4cyclictest33-21ksoftirqd/213:26:322
23562992720,4cyclictest33-21ksoftirqd/211:36:072
23557992722,3cyclictest25-21ksoftirqd/114:15:321
23557992719,5cyclictest9963-21tune2fs11:20:441
2356899265,9cyclictest1055-21runrttasks11:10:413
23568992620,3cyclictest41-21ksoftirqd/309:55:393
23568992610,3cyclictest401ktimersoftd/309:50:393
23562992621,3cyclictest33-21ksoftirqd/211:25:282
23562992620,3cyclictest33-21ksoftirqd/214:28:032
23562992620,3cyclictest33-21ksoftirqd/211:15:002
2355799266,11cyclictest31778-21ssh11:50:421
23557992620,3cyclictest25-21ksoftirqd/111:45:421
23557992619,4cyclictest15757-21snmp_o5powerctl11:30:541
23557992618,3cyclictest25-21ksoftirqd/114:36:021
2355299262,9cyclictest25508-21users09:35:550
217312260,2sleep10-21swapper/114:57:171
106891260,1ptp4l401ktimersoftd/310:30:513
23568992519,3cyclictest41-21ksoftirqd/312:33:063
23562992519,3cyclictest33-21ksoftirqd/213:45:472
23562992519,3cyclictest33-21ksoftirqd/213:04:052
23562992519,3cyclictest33-21ksoftirqd/209:50:332
23562992518,4cyclictest917-21date11:50:582
23562992518,4cyclictest33-21ksoftirqd/210:36:172
2355799252,19cyclictest4048-21grep14:06:021
23557992520,3cyclictest25-21ksoftirqd/114:45:331
23557992520,3cyclictest25-21ksoftirqd/113:45:321
23557992519,3cyclictest25-21ksoftirqd/114:25:531
23557992519,3cyclictest25-21ksoftirqd/111:20:001
23557992519,3cyclictest25-21ksoftirqd/110:05:541
23557992518,5cyclictest25-21ksoftirqd/113:30:531
23557992518,4cyclictest25-21ksoftirqd/110:42:271
106891250,1ptp4l401ktimersoftd/310:05:493
2356299249,4cyclictest21945-21missed_timers12:45:492
2356299242,13cyclictest14078-21ssh12:05:412
23562992419,3cyclictest33-21ksoftirqd/211:20:282
23562992418,3cyclictest33-21ksoftirqd/210:21:542
23562992418,3cyclictest33-21ksoftirqd/209:43:562
23562992417,4cyclictest33-21ksoftirqd/212:57:052
2356299241,4cyclictest24077-21memory13:20:522
2355799243,12cyclictest26852-21ssh14:30:451
23557992419,3cyclictest25-21ksoftirqd/113:25:451
23557992419,3cyclictest25-21ksoftirqd/112:05:301
23557992419,3cyclictest25-21ksoftirqd/110:45:471
23557992418,3cyclictest25-21ksoftirqd/113:55:491
23557992418,3cyclictest25-21ksoftirqd/112:56:001
23557992418,3cyclictest25-21ksoftirqd/111:10:461
23557992418,3cyclictest25-21ksoftirqd/110:17:491
23557992417,4cyclictest25-21ksoftirqd/112:24:001
2355799240,3cyclictest121rcu_preempt11:09:471
2355799240,3cyclictest121rcu_preempt11:09:471
23552992415,6cyclictest9327-21seq11:20:110
106891240,1ptp4l401ktimersoftd/311:25:463
106891240,1ptp4l401ktimersoftd/310:55:403
106891240,1ptp4l401ktimersoftd/309:45:403
2356299239,3cyclictest644-21dbus-daemon09:45:512
2356299233,11cyclictest25682sleep211:05:402
2356299233,11cyclictest25682sleep211:05:402
23562992317,3cyclictest33-21ksoftirqd/213:15:492
23562992317,3cyclictest33-21ksoftirqd/211:28:042
23562992317,3cyclictest33-21ksoftirqd/210:27:282
23562992317,3cyclictest33-21ksoftirqd/210:18:382
23562992317,3cyclictest233-21systemd-journal13:35:312
23562992316,4cyclictest33-21ksoftirqd/213:06:492
23562992316,4cyclictest33-21ksoftirqd/212:41:232
2355799233,12cyclictest16902-21ssh11:35:411
23557992317,3cyclictest25-21ksoftirqd/115:00:461
23557992316,4cyclictest25-21ksoftirqd/112:00:071
23557992316,4cyclictest25-21ksoftirqd/110:39:171
23557992316,4cyclictest25-21ksoftirqd/110:01:401
23557992315,4cyclictest25423-21switchtime12:15:581
2355299239,10cyclictest0-21swapper/010:05:370
1628322317,2sleep125-21ksoftirqd/114:20:001
106891230,1ptp4l401ktimersoftd/310:10:423
106891230,1ptp4l401ktimersoftd/310:00:473
23562992217,3cyclictest33-21ksoftirqd/212:25:532
23562992217,3cyclictest33-21ksoftirqd/212:00:472
23562992216,3cyclictest33-21ksoftirqd/214:42:222
23562992216,3cyclictest33-21ksoftirqd/210:56:442
23562992216,3cyclictest33-21ksoftirqd/210:44:002
23562992216,3cyclictest21167-21sh13:50:532
23562992215,4cyclictest33-21ksoftirqd/215:00:192
23562992215,4cyclictest33-21ksoftirqd/214:15:222
23562992215,4cyclictest33-21ksoftirqd/212:40:232
23562992215,4cyclictest33-21ksoftirqd/211:43:502
23562992215,4cyclictest32147-21sh14:01:512
23562992214,4cyclictest25619-21switchtime15:01:012
23557992217,3cyclictest25-21ksoftirqd/112:52:371
23557992217,3cyclictest25-21ksoftirqd/112:35:291
23557992216,3cyclictest25-21ksoftirqd/113:05:591
23557992216,3cyclictest25-21ksoftirqd/113:00:521
23557992216,3cyclictest25-21ksoftirqd/111:29:461
23557992216,3cyclictest25-21ksoftirqd/110:23:311
23557992216,3cyclictest25-21ksoftirqd/110:12:541
23557992215,4cyclictest25-21ksoftirqd/112:36:001
23557992214,5cyclictest1212-21/usr/sbin/munin12:26:001
2355799220,20cyclictest0-21swapper/112:05:441
23562992115,4cyclictest33-21ksoftirqd/209:59:282
23562992115,3cyclictest33-21ksoftirqd/214:09:042
23562992115,3cyclictest26934-21missed_timers12:50:522
23562992114,4cyclictest33-21ksoftirqd/210:50:262
23562992114,4cyclictest12638-21sh14:15:492
2355799219,9cyclictest19618-21latency_hist13:50:321
23557992116,3cyclictest25-21ksoftirqd/110:33:251
23557992115,4cyclictest25-21ksoftirqd/110:52:181
23557992115,3cyclictest25-21ksoftirqd/113:50:451
23557992115,3cyclictest25-21ksoftirqd/109:55:251
23557992114,4cyclictest25-21ksoftirqd/111:00:411
23557992114,4cyclictest25-21ksoftirqd/109:39:401
23557992114,4cyclictest24659-21sh12:49:131
23557992114,4cyclictest18921-21/usr/sbin/munin12:10:531
23557992114,4cyclictest1751-21expr09:55:411
23552992111,7cyclictest23547-21irqrtprio10:40:480
175982210,16sleep10-21swapper/113:15:201
2356299209,7cyclictest9373-21ssh14:45:442
23562992014,4cyclictest33-21ksoftirqd/210:53:112
23562992014,3cyclictest33-21ksoftirqd/210:14:472
23562992014,3cyclictest28304-21sh12:20:212
23562992014,3cyclictest27976-21grep11:45:502
23562992014,3cyclictest27194-21sh13:56:472
23562992014,3cyclictest17700-21sh14:53:442
23562992013,4cyclictest8818-21sh12:32:182
23562992013,4cyclictest28649-21sh12:20:342
23562992013,4cyclictest1654-21sh14:36:312
2356299201,16cyclictest6738-21grep10:05:422
23562992011,6cyclictest27975-21needreboot14:30:542
23557992014,3cyclictest15714-21/usr/sbin/munin10:25:501
23557992013,4cyclictest30853-21if_err_ens310:55:461
23557992013,4cyclictest30574-21python09:45:511
2355799201,17cyclictest10490-21needreboot14:45:521
23562991913,3cyclictest14342-21/usr/sbin/munin11:30:512
23562991913,3cyclictest13076-21sh13:10:352
2356299190,2cyclictest0-21swapper/210:00:272
23557991913,3cyclictest21203-21sh13:18:061
2356299181,5cyclictest18585-21grep10:30:432
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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