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2025-10-23 - 05:03
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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 all highest latencies:
System rackcslot4.osadl.org (updated Thu Oct 23, 2025 00:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8997472265187,28sleep10-21swapper/119:07:161
8999742248207,27sleep00-21swapper/019:09:410
90013599593,11cyclictest1019656-21apt-get22:45:121
9260482570,5sleep1925511-1kworker/1:0H20:14:551
125899550,4rtkit-daemon1257-21rtkit-daemon23:10:550
125899550,4rtkit-daemon1257-21rtkit-daemon20:15:250
125899550,4rtkit-daemon1257-21rtkit-daemon00:25:220
125899550,4rtkit-daemon1257-21rtkit-daemon00:25:220
125899540,5rtkit-daemon1257-21rtkit-daemon21:22:050
125899540,4rtkit-daemon1257-21rtkit-daemon23:00:040
125899520,4rtkit-daemon1257-21rtkit-daemon19:45:310
125899520,4rtkit-daemon1257-21rtkit-daemon19:45:300
125899500,4rtkit-daemon1257-21rtkit-daemon23:45:540
10502382500,1chrt1049151-21/usr/sbin/munin23:25:241
125899480,3rtkit-daemon1257-21rtkit-daemon22:03:351
125899460,6rtkit-daemon948469-21diskmemload23:07:151
90013599444,9cyclictest912595-21apt-get19:40:151
900135994424,2cyclictest17350irq/39-mmc023:50:011
90013599435,9cyclictest1016008-21apt-get22:40:141
900135994310,5cyclictest0-21swapper/122:27:061
90013599422,8cyclictest906714-21apt-get19:25:121
90013599412,12cyclictest1081457-21/usr/sbin/munin00:10:271
90013599411,14cyclictest939958-21/usr/sbin/munin20:50:271
90013599403,9cyclictest1088591-21apt-get00:20:151
90013599403,9cyclictest1070638-21apt-get23:55:151
125899400,4rtkit-daemon1257-21rtkit-daemon19:42:360
125899400,4rtkit-daemon1076528-21ssh00:02:191
9645742390,1sleep00-21swapper/021:30:220
90013599392,10cyclictest1096181-21apt-get00:30:171
90013599391,16cyclictest1099826-21apt-get00:35:141
90013599384,8cyclictest908668-21apt-get19:30:131
90013599383,10cyclictest920420-21apt-get20:00:131
125899380,3rtkit-daemon0-21swapper/121:38:151
125899380,3rtkit-daemon0-21swapper/119:36:561
125899370,4rtkit-daemon1257-21rtkit-daemon21:51:000
125899370,4rtkit-daemon1257-21rtkit-daemon21:16:040
125899370,3rtkit-daemon0-21swapper/122:15:511
9983992360,8sleep0161rcuc/022:15:220
90013599363,9cyclictest918442-21apt-get19:55:111
90013599363,8cyclictest902788-21apt-get19:15:141
125899360,4rtkit-daemon1257-21rtkit-daemon22:13:501
90013599353,8cyclictest944760-21apt-get21:00:151
90013599352,8cyclictest916498-21apt-get19:50:161
125899350,4rtkit-daemon1257-21rtkit-daemon20:34:480
125899350,4rtkit-daemon1257-21rtkit-daemon19:21:321
125899350,4rtkit-daemon1257-21rtkit-daemon00:05:551
125899350,4rtkit-daemon0-21swapper/022:31:151
125899350,3rtkit-daemon0-21swapper/020:37:490
125899350,3rtkit-daemon0-21swapper/020:22:030
125899340,5rtkit-daemon907690-21systemctl19:25:210
125899340,4rtkit-daemon1257-21rtkit-daemon22:57:050
125899340,4rtkit-daemon1257-21rtkit-daemon22:25:560
125899340,4rtkit-daemon1257-21rtkit-daemon20:42:501
125899340,4rtkit-daemon0-21swapper/121:37:250
125899340,3rtkit-daemon1257-21rtkit-daemon21:55:381
125899340,3rtkit-daemon1257-21rtkit-daemon21:41:141
125899340,3rtkit-daemon1257-21rtkit-daemon00:35:240
125899340,3rtkit-daemon0-21swapper/020:16:371
900131993310,9cyclictest13-21ksoftirqd/022:35:590
125899330,4rtkit-daemon1257-21rtkit-daemon23:38:541
125899330,4rtkit-daemon1257-21rtkit-daemon23:26:470
125899330,3rtkit-daemon0-21swapper/021:21:001
9056382320,3sleep00-21swapper/019:20:210
125899320,5rtkit-daemon1085409-21ssh00:15:200
125899320,4rtkit-daemon1257-21rtkit-daemon19:58:060
125899320,4rtkit-daemon1257-21rtkit-daemon19:33:350
125899320,4rtkit-daemon0-21swapper/119:36:080
125899320,3rtkit-daemon1257-21rtkit-daemon00:34:590
125899320,3rtkit-daemon0-21swapper/120:40:310
125899320,3rtkit-daemon0-21swapper/119:19:500
90013599313,4cyclictest953018-40apt-check21:15:171
125899310,4rtkit-daemon0-21swapper/123:42:150
125899310,3rtkit-daemon0-21swapper/122:05:100
125899310,3rtkit-daemon0-21swapper/120:50:070
125899310,3rtkit-daemon0-21swapper/021:53:171
125899310,3rtkit-daemon0-21swapper/021:10:491
9617542300,4chrt960475-21/usr/sbin/munin21:25:211
125899300,3rtkit-daemon0-21swapper/100:08:220
125899300,3rtkit-daemon0-21swapper/023:16:451
125899290,4rtkit-daemon1257-21rtkit-daemon23:50:101
125899290,3rtkit-daemon0-21swapper/122:03:420
125899290,3rtkit-daemon0-21swapper/121:43:530
125899290,3rtkit-daemon0-21swapper/119:12:190
125899290,3rtkit-daemon0-21swapper/022:59:531
125899290,3rtkit-daemon0-21swapper/021:48:301
125899290,3rtkit-daemon0-21swapper/019:45:361
125899290,3rtkit-daemon0-21swapper/019:45:361
10109832290,3chrt0-21swapper/022:32:140
125899280,3rtkit-daemon0-21swapper/020:36:101
125899280,3rtkit-daemon0-21swapper/020:24:291
900135992724,2cyclictest63750irq/132-enp2s022:37:171
125899270,3rtkit-daemon0-21swapper/120:49:240
90013599261,23cyclictest1001168-21ssh22:20:021
125899260,22rtkit-daemon849-21snmpd23:43:561
90013599250,5cyclictest0-21swapper/123:04:441
125899250,4rtkit-daemon1257-21rtkit-daemon00:01:260
125899250,1rtkit-daemon1257-21rtkit-daemon22:21:120
90013599241,3cyclictest936922-1kworker/1:2H21:10:011
90013599241,21cyclictest967635-21python321:35:011
90013599240,6cyclictest0-21swapper/100:25:471
90013599240,6cyclictest0-21swapper/100:25:461
90013199243,14cyclictest1081479-21apt-get00:10:120
90013199242,15cyclictest1023318-21apt-get22:50:140
900131992417,5cyclictest1055973-21cron23:35:000
90013199241,6cyclictest948740-21apt-get21:10:150
900131992413,6cyclictest960495-21apt-get21:25:110
900131992410,5cyclictest0-21swapper/022:11:010
90013599231,5cyclictest900571-21fschecks_time19:10:171
900135992312,6cyclictest1045064-21apt-get23:20:131
900135992312,6cyclictest1045064-21apt-get23:20:121
90013599231,20cyclictest932009-21wc20:29:591
900135992310,9cyclictest932152-21apt-get20:30:161
900135992310,7cyclictest63750irq/132-enp2s023:30:131
90013199238,5cyclictest0-21swapper/021:56:130
125899230,1rtkit-daemon1257-21rtkit-daemon20:08:000
125899230,1rtkit-daemon1257-21rtkit-daemon19:53:490
125899230,14rtkit-daemon0-21swapper/023:19:350
90013599222,14cyclictest990143-21apt-get22:05:151
90013599222,14cyclictest942333-21apt-get20:55:151
900135992217,3cyclictest0-21swapper/100:20:011
90013199222,15cyclictest941730-21apt-get20:55:060
90013199222,14cyclictest1034235-21apt-get23:05:140
90013199222,13cyclictest975464-21apt-get21:45:090
90013199220,5cyclictest0-21swapper/000:20:020
90013599214,16cyclictest924127-21perf20:10:001
900135992118,2cyclictest63750irq/132-enp2s022:50:341
900131992114,5cyclictest1021677-1kworker/u9:222:47:130
90013199211,14cyclictest1056241-21apt-get23:35:150
900131992110,9cyclictest131ksoftirqd/021:00:230
10409192210,8sleep10-21swapper/123:14:291
90013599201,13cyclictest938025-21apt-get20:45:131
90013199203,10cyclictest1070638-21apt-get23:55:130
90013199201,13cyclictest1067152-21apt-get23:50:130
125899200,13rtkit-daemon0-21swapper/021:05:050
90013199191,6cyclictest948469-21diskmemload22:40:190
900131991911,6cyclictest921124-21seq20:00:210
900131991813,3cyclictest1045153-21cpuspeed23:20:150
900131991813,3cyclictest1045153-21cpuspeed23:20:140
900131991812,5cyclictest13-21ksoftirqd/020:30:000
90013199170,6cyclictest924770-21hwlatdetect20:10:200
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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