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2025-12-27 - 06:13
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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 highest latencies:
System rackcslot2.osadl.org (updated Sat Dec 27, 2025 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
380721960,2sleep10-21swapper/119:05:131
457627145,22sleep00-21swapper/019:07:260
4996993232,0cyclictest0-21swapper/122:36:231
4996993029,1cyclictest0-21swapper/121:43:181
4996992924,5cyclictest0-21swapper/123:18:141
4996992910,17cyclictest0-21swapper/123:24:461
499699280,27cyclictest0-21swapper/121:23:501
499599281,25cyclictest0-21swapper/023:07:340
499599281,25cyclictest0-21swapper/023:07:340
499599280,4cyclictest0-21swapper/022:05:100
4995992710,2cyclictest0-21swapper/023:30:290
499599270,27cyclictest0-21swapper/023:55:150
4995992610,5cyclictest0-21swapper/022:00:160
4995992610,15cyclictest0-21swapper/021:45:170
499699251,24cyclictest0-21swapper/123:32:291
4996992510,8cyclictest0-21swapper/119:35:021
4996992510,12cyclictest0-21swapper/121:55:121
4995992520,5cyclictest0-21swapper/020:36:010
499599250,22cyclictest0-21swapper/000:00:070
4996992414,6cyclictest0-21swapper/100:17:301
4996992410,1cyclictest0-21swapper/123:26:351
499699240,0cyclictest0-21swapper/123:55:531
499699240,0cyclictest0-21swapper/121:47:501
4995992415,8cyclictest23883-21apache221:31:190
4995992410,6cyclictest0-21swapper/023:20:130
499699235,11cyclictest0-21swapper/120:05:061
4995992323,0cyclictest0-21swapper/022:31:570
4995992323,0cyclictest0-21swapper/019:51:470
4995992310,12cyclictest0-21swapper/019:25:090
4995992310,10cyclictest0-21swapper/021:22:310
779722210,0sleep00-21swapper/000:19:190
499699223,1cyclictest27895-21ssh00:03:091
499699223,18cyclictest18545-21diskmemload00:30:151
499699222,11cyclictest0-21swapper/123:05:251
499699222,11cyclictest0-21swapper/123:05:251
4996992219,2cyclictest23886-21apache223:47:371
4996992217,4cyclictest947-21sendmail-mta22:48:471
4996992216,5cyclictest0-21swapper/120:00:091
499699221,20cyclictest0-21swapper/121:13:421
4996992210,6cyclictest0-21swapper/119:25:061
4996992210,5cyclictest0-21swapper/121:15:061
499699220,13cyclictest0-21swapper/120:50:071
4995992221,1cyclictest7-21ksoftirqd/019:49:550
4995992220,1cyclictest2668-21/usr/sbin/munin22:10:080
4995992215,5cyclictest23886-21apache200:13:010
4995992211,6cyclictest0-21swapper/020:25:080
499699217,13cyclictest0-21swapper/123:00:161
499699215,9cyclictest0-21swapper/122:25:071
4996992119,2cyclictest802-21apache220:20:101
4996992117,4cyclictest0-21swapper/121:08:521
4996992110,7cyclictest29150-21kworker/u4:223:35:251
499599218,8cyclictest9373-21/usr/sbin/munin00:20:130
4995992119,1cyclictest0-21swapper/020:15:160
4995992118,2cyclictest23883-21apache222:15:330
4995992117,3cyclictest0-21swapper/020:56:290
4995992115,4cyclictest23886-21apache221:35:370
4995992112,5cyclictest0-21swapper/022:28:080
4995992110,10cyclictest0-21swapper/020:30:420
499599210,2cyclictest21310-21grep00:35:140
499599210,1cyclictest0-21swapper/022:41:450
3093222110,2sleep00-21swapper/000:06:310
1314622110,0sleep00-21swapper/023:45:030
499699204,10cyclictest0-21swapper/120:40:071
499699203,3cyclictest0-21swapper/100:38:211
4996992012,6cyclictest23886-21apache221:26:201
4996992010,7cyclictest0-21swapper/122:05:021
4996992010,5cyclictest0-21swapper/122:34:001
4996992010,5cyclictest0-21swapper/100:25:071
499599204,8cyclictest12263-21users21:40:140
499599204,7cyclictest0-21swapper/021:50:130
499599202,10cyclictest22093-21ssh23:15:090
4995992017,3cyclictest0-21swapper/022:54:290
4995992016,2cyclictest20692-21ssh23:13:220
4995992015,4cyclictest100150irq/106-eth1-rx23:35:110
4995992012,8cyclictest0-21swapper/019:24:270
4995992011,4cyclictest0-21swapper/020:14:550
4995992010,7cyclictest0-21swapper/020:20:450
4995992010,2cyclictest0-21swapper/023:40:070
499699196,7cyclictest0-21swapper/100:20:051
499699193,7cyclictest0-21swapper/119:30:101
4996991918,1cyclictest23886-21apache223:12:531
4996991918,1cyclictest23886-21apache221:31:231
499699191,4cyclictest7473-21hddtemp_smartct21:35:121
4996991914,3cyclictest23886-21apache222:51:091
4996991911,6cyclictest0-21swapper/122:10:171
4996991910,6cyclictest0-21swapper/122:40:211
4996991910,6cyclictest0-21swapper/120:30:091
4996991910,5cyclictest0-21swapper/123:50:111
4996991910,3cyclictest0-21swapper/123:40:061
4996991910,2cyclictest0-21swapper/119:55:111
499699190,9cyclictest0-21swapper/119:15:151
499599196,7cyclictest0-21swapper/019:55:080
499599195,9cyclictest0-21swapper/020:50:080
499599195,10cyclictest167-21systemd-journal00:34:550
499599194,9cyclictest0-21swapper/023:25:070
499599192,3cyclictest0-21swapper/022:58:100
4995991918,1cyclictest0-21swapper/022:24:500
4995991914,4cyclictest18703-1kworker/u5:121:12:090
4995991910,2cyclictest0-21swapper/023:53:420
4995991910,2cyclictest0-21swapper/022:34:590
4995991910,0cyclictest0-21swapper/000:28:070
499699186,7cyclictest18545-21diskmemload21:50:051
499699185,5cyclictest0-21swapper/119:11:321
499699183,7cyclictest0-21swapper/120:25:081
4996991815,2cyclictest100150irq/106-eth1-rx21:59:571
499699181,13cyclictest0-21swapper/120:15:161
499699181,10cyclictest0-21swapper/100:10:261
4996991810,6cyclictest0-21swapper/120:10:591
4996991810,4cyclictest0-21swapper/122:55:071
4996991810,4cyclictest0-21swapper/122:20:181
4996991810,4cyclictest0-21swapper/121:00:141
4996991810,4cyclictest0-21swapper/100:08:231
499699180,12cyclictest0-21swapper/119:50:061
499599189,7cyclictest0-21swapper/019:40:070
499599186,7cyclictest23210-21/usr/sbin/munin21:55:080
499599183,8cyclictest0-21swapper/021:18:230
4995991811,4cyclictest0-21swapper/021:00:120
4995991810,4cyclictest0-21swapper/021:05:080
4995991810,3cyclictest0-21swapper/022:48:400
4995991810,3cyclictest0-21swapper/019:30:070
4995991810,0cyclictest0-21swapper/023:00:090
499699172,7cyclictest0-21swapper/119:45:131
499699172,12cyclictest0-21swapper/120:45:141
499699172,10cyclictest9151-21cut19:20:081
4996991710,4cyclictest0-21swapper/122:15:131
4996991710,1cyclictest0-21swapper/120:55:071
499599172,4cyclictest0-21swapper/019:10:160
4995991713,4cyclictest0-21swapper/019:15:290
4995991710,3cyclictest0-21swapper/021:25:070
4995991710,1cyclictest0-21swapper/020:45:150
4995991710,0cyclictest0-21swapper/020:05:070
499699162,7cyclictest0-21swapper/120:35:061
499699160,7cyclictest0-21swapper/119:40:151
499599160,16cyclictest0-21swapper/020:01:260
499599160,11cyclictest0-21swapper/019:35:060
4995991410,1cyclictest0-21swapper/020:41:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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