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2025-06-29 - 01:29
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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
Characteristics of the 792 highest latencies:
System rackcslot4.osadl.org (updated Sat Jun 28, 2025 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15692222264206,44sleep10-21swapper/107:07:351
15692002258186,58sleep00-21swapper/007:07:220
1569599997772,4cyclictest1586583-21kworker/u8:208:45:381
125899600,4rtkit-daemon1257-21rtkit-daemon12:33:380
16742272540,3sleep00-21swapper/010:23:180
17157562530,3sleep00-21swapper/011:18:070
125899530,4rtkit-daemon1257-21rtkit-daemon11:56:210
125899530,4rtkit-daemon1257-21rtkit-daemon09:28:521
125899530,4rtkit-daemon1257-21rtkit-daemon08:50:451
125899510,4rtkit-daemon1257-21rtkit-daemon11:39:070
125899490,5rtkit-daemon1648900-21apt-get09:50:161
125899490,4rtkit-daemon1257-21rtkit-daemon12:15:340
125899470,7rtkit-daemon0-21swapper/111:21:461
125899470,3rtkit-daemon1257-21rtkit-daemon10:13:150
16844932460,1sleep00-21swapper/010:36:080
125899410,4rtkit-daemon1257-21rtkit-daemon07:52:550
125899400,6rtkit-daemon1759708-21ssh12:17:521
15937812380,25sleep11593800-21apt-get08:10:121
125899380,5rtkit-daemon1572959-21/usr/sbin/munin07:15:230
125899380,3rtkit-daemon0-21swapper/109:47:251
125899370,6rtkit-daemon1721452-21ntp_states11:25:261
125899370,5rtkit-daemon1722776-21ssh11:27:010
125899370,5rtkit-daemon1654529-21sh09:56:140
125899370,5rtkit-daemon1608640-21cat08:45:220
125899370,3rtkit-daemon0-21swapper/112:24:521
125899370,3rtkit-daemon0-21swapper/109:34:251
125899370,3rtkit-daemon0-21swapper/108:35:371
125899360,7rtkit-daemon1610013-21cpu08:50:160
125899360,5rtkit-daemon1737857-21ssh11:47:030
125899360,4rtkit-daemon1749320-21ssh12:03:461
125899360,4rtkit-daemon1257-21rtkit-daemon12:11:210
125899360,4rtkit-daemon1257-21rtkit-daemon09:38:001
125899360,3rtkit-daemon0-21swapper/111:52:300
125899360,3rtkit-daemon0-21swapper/109:23:140
15766152350,4sleep00-21swapper/007:25:200
125899350,4rtkit-daemon1257-21rtkit-daemon10:25:550
125899350,4rtkit-daemon1257-21rtkit-daemon09:14:421
125899350,4rtkit-daemon0-21swapper/011:39:541
125899350,3rtkit-daemon1257-21rtkit-daemon08:20:120
125899350,3rtkit-daemon0-21swapper/011:05:251
125899340,4rtkit-daemon1257-21rtkit-daemon09:44:431
125899340,4rtkit-daemon1257-21rtkit-daemon08:32:461
125899340,4rtkit-daemon1257-21rtkit-daemon07:20:441
125899340,4rtkit-daemon1257-21rtkit-daemon07:13:441
125899340,3rtkit-daemon1257-21rtkit-daemon09:20:341
125899340,3rtkit-daemon0-21swapper/111:12:381
125899340,3rtkit-daemon0-21swapper/011:58:381
125899330,5rtkit-daemon972-21kerneloops08:01:090
125899330,4rtkit-daemon1257-21rtkit-daemon10:07:241
125899330,4rtkit-daemon1257-21rtkit-daemon10:04:071
125899330,3rtkit-daemon0-21swapper/110:05:110
125899330,3rtkit-daemon0-21swapper/107:48:030
125899330,3rtkit-daemon0-21swapper/107:39:420
125899330,3rtkit-daemon0-21swapper/011:50:461
125899330,3rtkit-daemon0-21swapper/007:53:501
125899320,4rtkit-daemon1675503-21ssh10:25:221
125899320,4rtkit-daemon1257-21rtkit-daemon12:37:430
125899320,4rtkit-daemon1257-21rtkit-daemon08:06:450
125899320,3rtkit-daemon1257-21rtkit-daemon11:47:171
125899320,3rtkit-daemon0-21swapper/107:13:020
125899320,3rtkit-daemon0-21swapper/010:12:151
125899310,5rtkit-daemon685-21irqbalance10:40:410
125899310,4rtkit-daemon1257-21rtkit-daemon09:14:270
125899310,4rtkit-daemon1257-21rtkit-daemon07:57:470
125899310,3rtkit-daemon0-21swapper/008:16:571
125899300,4rtkit-daemon1257-21rtkit-daemon10:04:000
125899300,3rtkit-daemon0-21swapper/109:51:060
125899300,2rtkit-daemon0-21swapper/007:58:381
16063122290,13sleep013-21ksoftirqd/008:40:190
1569599992916,11cyclictest26-21ksoftirqd/110:25:011
125899290,4rtkit-daemon1257-21rtkit-daemon12:08:261
125899290,3rtkit-daemon0-21swapper/109:29:000
125899290,3rtkit-daemon0-21swapper/011:30:491
125899290,25rtkit-daemon0-21swapper/009:35:160
125899290,1rtkit-daemon1257-21rtkit-daemon07:15:151
1569594992812,9cyclictest1709522-21apt-get11:10:170
125899280,23rtkit-daemon1569586-21cyclictest12:26:250
125899280,1rtkit-daemon1257-21rtkit-daemon07:40:171
156959999273,16cyclictest1606063-21apt-get08:40:141
1569599992713,10cyclictest1591852-21apt-get08:05:161
156959499273,16cyclictest1633693-21apt-get09:30:190
125899270,3rtkit-daemon0-21swapper/108:25:130
125899270,21rtkit-daemon1569586-21cyclictest11:00:090
156959999261,21cyclictest1598197-40apt-check08:20:201
1569599992611,11cyclictest1682808-21apt-get10:35:171
125899260,21rtkit-daemon1569586-21cyclictest08:59:090
125899260,1rtkit-daemon1257-21rtkit-daemon09:18:031
125899260,1rtkit-daemon1257-21rtkit-daemon07:45:131
125899260,16rtkit-daemon1754632-21kworker/u8:112:29:531
1569599992511,2cyclictest141rcu_preempt10:50:221
156959499259,10cyclictest1574209-21apt-get07:20:180
156959499258,10cyclictest1645158-21apt-get09:45:160
156959499254,12cyclictest1593800-21apt-get08:10:150
1569594992513,7cyclictest63750irq/132-enp2s010:55:140
125899250,4rtkit-daemon1257-21rtkit-daemon08:32:390
125899250,1rtkit-daemon1257-21rtkit-daemon11:08:160
125899250,1rtkit-daemon1257-21rtkit-daemon07:26:431
156959999243,12cyclictest1578104-21apt-get07:30:151
156959999242,2cyclictest141rcu_preempt11:15:201
156959499249,5cyclictest0-21swapper/011:22:360
156959499249,5cyclictest0-21swapper/010:51:210
156959499242,7cyclictest1641487-21apt-get09:40:180
1569594992411,11cyclictest1623547-21wc09:15:260
125899240,1rtkit-daemon1257-21rtkit-daemon12:20:480
125899240,1rtkit-daemon1257-21rtkit-daemon11:34:170
125899240,1rtkit-daemon1257-21rtkit-daemon10:16:290
125899240,1rtkit-daemon1257-21rtkit-daemon08:55:301
125899240,19rtkit-daemon1257-21rtkit-daemon12:12:131
17469472230,4sleep01746948-21fschecks_time12:00:200
156959999238,4cyclictest26-21ksoftirqd/112:35:411
156959999238,10cyclictest1580057-21apt-get07:35:161
156959999234,17cyclictest1771409-21latency_hist12:35:021
156959999232,16cyclictest1705002-21python311:05:011
156959999232,14cyclictest1731896-21apt-get11:40:151
156959999230,6cyclictest0-21swapper/109:59:101
156959999230,4cyclictest26-21ksoftirqd/109:00:261
156959499238,5cyclictest0-21swapper/012:05:090
156959999222,6cyclictest26-21ksoftirqd/110:17:061
125899220,14rtkit-daemon0-21swapper/110:58:421
156959999215,4cyclictest26-21ksoftirqd/110:47:361
156959999213,10cyclictest1589905-21apt-get08:00:151
156959999212,17cyclictest0-21swapper/110:44:281
156959999212,13cyclictest1679005-21apt-get10:30:141
125899210,18rtkit-daemon0-21swapper/007:32:130
156959999203,11cyclictest1616281-21apt-get09:05:151
156959999203,11cyclictest1600189-21apt-get08:25:151
1569594992010,7cyclictest1682685-21cat10:35:010
156959499192,10cyclictest1604096-21apt-get08:35:170
1569594991912,5cyclictest13-21ksoftirqd/011:40:230
156959499190,7cyclictest1693712-20cron10:50:000
156959499185,11cyclictest1616069-21sh09:05:000
1569594991814,3cyclictest13-21ksoftirqd/009:10:000
156959499181,12cyclictest1595965-21diskstats08:15:200
156959499171,12cyclictest1582298-21diskstats07:40:180
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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