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2026-01-08 - 06:04
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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 Thu Jan 08, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2076427035,31sleep00-21swapper/019:07:150
2101126855,9sleep10-21swapper/119:09:501
143522680,1sleep014344-21proc_pri22:45:090
21195994210,5cyclictest0-21swapper/123:35:041
21195993810,25cyclictest0-21swapper/122:59:261
21194993535,0cyclictest0-21swapper/023:22:130
21194993210,19cyclictest0-21swapper/020:12:160
2119599300,27cyclictest0-21swapper/121:46:011
2119599296,4cyclictest7494-21apache_accesses00:00:041
21194992927,1cyclictest0-21swapper/023:16:520
2119499270,26cyclictest0-21swapper/022:50:040
2119599262,3cyclictest0-21swapper/100:15:211
21195992620,5cyclictest11942-21apache223:57:491
21195992619,2cyclictest0-21swapper/100:36:361
2119599260,1cyclictest0-21swapper/119:25:061
21194992622,3cyclictest744-21snmpd23:39:550
21194992610,11cyclictest0-21swapper/023:00:010
2119599254,20cyclictest12848-21ps20:10:091
21195992523,1cyclictest0-21swapper/122:40:411
21195992515,9cyclictest585-21gmain22:34:461
21195992410,7cyclictest0-21swapper/123:30:141
21195992410,5cyclictest0-21swapper/122:50:041
2119599240,5cyclictest0-21swapper/121:05:081
21194992419,1cyclictest2493-21diskmemload23:27:550
21194992416,5cyclictest11922-21apache223:06:400
2119499240,4cyclictest0-21swapper/022:10:050
2119599231,7cyclictest0-21swapper/123:54:331
21195992316,4cyclictest0-21swapper/100:31:531
21195992310,4cyclictest0-21swapper/120:00:051
2119599230,17cyclictest0-21swapper/122:06:411
21194992310,3cyclictest0-21swapper/021:39:550
21194992310,2cyclictest0-21swapper/000:11:560
21194992310,12cyclictest0-21swapper/022:06:230
21194992310,10cyclictest0-21swapper/023:39:250
2119599224,10cyclictest27341-21apache_processe20:50:021
21195992218,2cyclictest705-21ntpd00:29:151
21195992217,3cyclictest705-21ntpd22:24:031
21195992213,7cyclictest12354-21ntp_kernel_pll_00:05:081
21195992211,8cyclictest100150irq/106-eth1-rx22:26:121
21195992210,6cyclictest0-21swapper/123:00:251
21194992217,3cyclictest30339-21sh00:28:520
2119499221,13cyclictest0-21swapper/021:14:520
21194992210,10cyclictest0-21swapper/023:56:390
864222110,0sleep10-21swapper/122:38:481
2119599219,6cyclictest0-21swapper/119:30:111
2119599216,9cyclictest0-21swapper/122:15:051
2119599212,7cyclictest0-21swapper/119:45:021
2119599212,17cyclictest21568-21/usr/sbin/munin20:35:021
2119599212,10cyclictest0-21swapper/123:10:091
2119599211,15cyclictest0-21swapper/123:04:531
21195992111,2cyclictest0-21swapper/123:22:221
21195992110,6cyclictest0-21swapper/122:00:031
21195992110,4cyclictest0-21swapper/123:42:181
21195992110,4cyclictest0-21swapper/120:40:021
2119499217,13cyclictest0-21swapper/023:11:350
2119499214,9cyclictest0-21swapper/019:40:000
21194992114,6cyclictest11922-21apache222:19:100
21194992112,7cyclictest9454-21/usr/sbin/munin22:40:100
21194992110,6cyclictest0-21swapper/022:55:020
21194992110,5cyclictest0-21swapper/000:30:120
2119599205,11cyclictest0-21swapper/100:10:021
21195992010,8cyclictest0-21swapper/121:37:061
21195992010,6cyclictest0-21swapper/121:50:071
21195992010,0cyclictest0-21swapper/100:24:461
2119499209,2cyclictest11942-21apache223:52:320
2119499207,9cyclictest0-21swapper/019:15:090
21194992011,4cyclictest0-21swapper/021:10:030
2119499201,14cyclictest0-21swapper/019:59:590
21194992010,6cyclictest0-21swapper/022:35:020
21194992010,6cyclictest0-21swapper/019:10:010
21194992010,5cyclictest0-21swapper/022:30:320
21194992010,4cyclictest0-21swapper/022:00:020
2119499200,6cyclictest0-21swapper/020:05:010
2119499200,12cyclictest0-21swapper/019:20:010
3061321910,0sleep10-21swapper/120:55:531
2119599195,10cyclictest0-21swapper/123:45:091
2119599194,11cyclictest0-21swapper/120:20:111
2119599193,4cyclictest0-21swapper/122:46:021
2119599192,10cyclictest19499-21awk20:29:511
21195991914,3cyclictest705-21ntpd21:04:401
21195991911,7cyclictest11942-21apache221:26:401
21195991910,8cyclictest0-21swapper/120:44:551
21195991910,6cyclictest100250irq/107-eth1-rx21:32:551
21195991910,6cyclictest0-21swapper/119:55:131
21195991910,5cyclictest0-21swapper/121:40:011
21195991910,1cyclictest0-21swapper/120:15:221
2119499194,8cyclictest0-21swapper/021:20:020
2119499194,7cyclictest0-21swapper/020:40:010
2119499193,10cyclictest0-21swapper/022:25:030
2119499192,14cyclictest0-21swapper/000:18:030
21194991917,1cyclictest29990-21ls19:30:100
21194991912,2cyclictest0-21swapper/023:46:250
2119499191,12cyclictest0-21swapper/020:25:040
21194991910,7cyclictest0-21swapper/021:53:500
21194991910,6cyclictest100250irq/107-eth1-rx21:58:350
21194991910,6cyclictest0-21swapper/000:38:330
21194991910,1cyclictest0-21swapper/020:30:090
21194991910,1cyclictest0-21swapper/000:20:110
2119499190,14cyclictest0-21swapper/019:35:120
1071921910,0sleep00-21swapper/000:03:540
2119599184,9cyclictest0-21swapper/119:20:071
2119599184,10cyclictest0-21swapper/121:20:091
2119599183,10cyclictest0-21swapper/122:10:011
2119599182,9cyclictest0-21swapper/119:35:101
2119599182,11cyclictest0-21swapper/121:55:031
2119599181,3cyclictest2493-21diskmemload23:15:021
21195991811,4cyclictest100250irq/107-eth1-rx21:15:211
21195991810,3cyclictest0-21swapper/123:28:011
2119499189,8cyclictest0-21swapper/020:55:110
2119499188,1cyclictest2493-21diskmemload21:25:020
2119499184,6cyclictest0-21swapper/020:45:020
21194991817,1cyclictest21192-21cyclictest23:34:110
21194991817,0cyclictest81ktimersoftd/021:48:210
21194991816,1cyclictest13757-21ssh00:06:470
21194991811,1cyclictest27769-21sh19:25:080
1130421810,0sleep10-21swapper/120:05:221
2119599171,6cyclictest0-21swapper/119:10:061
21195991710,4cyclictest0-21swapper/119:50:031
21195991710,2cyclictest0-21swapper/121:11:011
2119599170,6cyclictest23146-21apache_processe19:15:031
2119499174,4cyclictest0-21swapper/020:20:010
2119499172,10cyclictest0-21swapper/021:05:570
21194991715,1cyclictest81ktimersoftd/019:45:090
21194991714,3cyclictest0-21swapper/020:35:530
21194991710,6cyclictest0-21swapper/021:35:570
21194991710,4cyclictest0-21swapper/020:50:090
21194991710,3cyclictest0-21swapper/022:20:070
21194991710,0cyclictest0-21swapper/020:15:010
2119499166,8cyclictest0-21swapper/021:00:040
21194991610,0cyclictest0-21swapper/021:29:560
21194991510,2cyclictest0-21swapper/019:55:050
2119499150,5cyclictest0-21swapper/019:50:020
183121510,0sleep10-21swapper/119:41:461
2119599142,8cyclictest0-21swapper/120:34:511
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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