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2025-11-24 - 05:00
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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 rackcslot2.osadl.org (updated Mon Nov 24, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
213528160,16sleep10-21swapper/119:02:291
277142750,0sleep10-21swapper/100:20:431
221927152,8sleep00-21swapper/019:03:210
287292670,0sleep10-21swapper/123:36:521
2726993510,4cyclictest0-21swapper/123:23:121
2726993410,5cyclictest0-21swapper/100:25:011
2725993433,1cyclictest0-21swapper/022:20:080
2725993416,18cyclictest0-21swapper/023:04:280
2726993110,0cyclictest0-21swapper/100:02:111
2726992818,10cyclictest20692-21kworker/1:222:28:381
272699270,26cyclictest20692-21kworker/1:222:05:381
2725992726,1cyclictest0-21swapper/023:27:280
2725992720,4cyclictest4706-21apache219:07:020
2726992626,0cyclictest0-21swapper/123:19:331
2726992626,0cyclictest0-21swapper/123:09:061
2726992610,9cyclictest0-21swapper/123:47:031
2726992610,6cyclictest0-21swapper/121:02:061
2726992520,3cyclictest4725-21apache221:46:261
2726992516,9cyclictest20692-21kworker/1:220:47:381
2726992514,3cyclictest0-21swapper/123:27:031
2726992510,11cyclictest0-21swapper/100:01:131
272699250,24cyclictest0-21swapper/121:32:201
272699250,22cyclictest20692-21kworker/1:222:38:261
2725992513,12cyclictest0-21swapper/021:42:540
2725992510,13cyclictest18824-21kworker/0:100:18:090
2725992510,11cyclictest0-21swapper/020:04:120
272699248,9cyclictest4725-21apache219:16:571
2726992410,2cyclictest0-21swapper/123:12:261
272699240,23cyclictest0-21swapper/122:51:361
2725992422,1cyclictest4725-21apache223:54:340
2725992422,1cyclictest4706-21apache219:38:020
2725992410,6cyclictest0-21swapper/000:28:050
272599240,2cyclictest0-21swapper/000:02:490
883922310,1sleep00-21swapper/021:39:310
2726992312,5cyclictest4706-21apache220:25:531
272699231,16cyclictest0-21swapper/122:21:191
2726992310,1cyclictest0-21swapper/122:08:041
2725992314,4cyclictest19181-21unixbench_singl23:22:060
2725992311,5cyclictest0-21swapper/019:56:590
2725992310,4cyclictest0-21swapper/019:51:590
2725992310,1cyclictest0-21swapper/023:13:090
162522310,0sleep00-21swapper/022:58:160
2726992217,2cyclictest14881-21netstat22:32:031
2726992216,3cyclictest0-21swapper/121:22:061
2726992212,9cyclictest97850irq/107-eth1-rx00:31:501
2726992210,11cyclictest0-21swapper/122:12:551
272599224,15cyclictest0-21swapper/020:12:000
2725992210,5cyclictest0-21swapper/019:26:580
272599220,21cyclictest13065-21kworker/0:020:23:570
2388722210,0sleep10-21swapper/122:00:481
272699214,9cyclictest0-21swapper/120:57:071
2726992120,0cyclictest20374-21apache_accesses21:11:561
2726992119,1cyclictest0-21swapper/100:27:591
2726992111,5cyclictest0-21swapper/100:14:031
2726992110,5cyclictest0-21swapper/120:52:431
2726992110,4cyclictest0-21swapper/122:57:041
2726992110,4cyclictest0-21swapper/119:06:591
2726992110,0cyclictest0-21swapper/123:02:141
272599214,9cyclictest0-21swapper/019:31:560
272599212,18cyclictest13065-21kworker/0:020:34:330
2725992115,4cyclictest0-21swapper/000:25:260
272599211,4cyclictest0-21swapper/023:33:300
2725992113,4cyclictest25321-21ntp_states22:02:010
2725992110,7cyclictest0-21swapper/019:19:470
2725992110,6cyclictest0-21swapper/022:47:190
2725992110,6cyclictest0-21swapper/020:37:030
2725992110,4cyclictest0-21swapper/020:07:050
2725992110,1cyclictest0-21swapper/020:17:500
2725992110,0cyclictest0-21swapper/021:28:210
272599210,13cyclictest0-21swapper/019:22:030
272699205,4cyclictest0-21swapper/120:42:011
272699203,11cyclictest0-21swapper/119:12:011
272699202,6cyclictest16441-21df19:41:581
2726992017,0cyclictest0-21swapper/121:37:101
2726992012,5cyclictest4706-21apache220:07:051
2726992012,4cyclictest4725-21apache221:19:221
2726992011,4cyclictest0-21swapper/123:51:551
2726992010,8cyclictest0-21swapper/121:11:241
2726992010,5cyclictest0-21swapper/121:54:171
2726992010,4cyclictest0-21swapper/123:34:231
2726992010,0cyclictest0-21swapper/119:32:021
272699200,19cyclictest0-21swapper/121:46:531
272599208,11cyclictest0-21swapper/021:31:570
272599206,8cyclictest14495-21ssh23:17:010
272599206,7cyclictest4958-21ssh23:47:060
2725992016,3cyclictest4706-21apache221:09:290
2725992010,7cyclictest0-21swapper/023:58:250
2725992010,6cyclictest0-21swapper/021:14:550
2725992010,4cyclictest0-21swapper/022:24:460
2725992010,3cyclictest0-21swapper/022:39:490
2725992010,3cyclictest0-21swapper/000:31:560
2725992010,2cyclictest0-21swapper/022:09:560
169462200,0sleep00-21swapper/021:51:260
272699194,11cyclictest0-21swapper/123:41:551
2726991916,2cyclictest4725-21apache222:41:551
2726991910,7cyclictest0-21swapper/122:51:591
2726991910,6cyclictest0-21swapper/119:52:131
2726991910,5cyclictest0-21swapper/122:22:001
272599196,4cyclictest16366-21diskmemload22:27:380
272599193,11cyclictest0-21swapper/021:22:070
2725991917,1cyclictest18595-21ls00:07:050
2725991911,6cyclictest97750irq/106-eth1-rx21:16:530
272599191,11cyclictest0-21swapper/020:57:040
2725991910,4cyclictest0-21swapper/023:07:020
2725991910,4cyclictest0-21swapper/021:06:450
2725991910,3cyclictest0-21swapper/023:42:030
272599190,10cyclictest0-21swapper/021:56:560
272699185,8cyclictest0-21swapper/120:01:581
2726991810,4cyclictest0-21swapper/120:11:581
2726991810,4cyclictest0-21swapper/119:22:591
2726991810,3cyclictest0-21swapper/121:29:041
2726991810,2cyclictest0-21swapper/119:46:571
272599184,7cyclictest0-21swapper/022:31:520
2725991817,1cyclictest4706-21apache219:45:490
2725991810,7cyclictest0-21swapper/021:53:360
2725991810,6cyclictest0-21swapper/019:49:470
2725991810,3cyclictest4706-21apache220:54:080
2725991810,3cyclictest0-21swapper/020:41:560
272599180,4cyclictest1111-21runrttasks20:50:550
1596521810,1sleep10-21swapper/119:40:461
2726991710,3cyclictest0-21swapper/120:16:581
2726991710,1cyclictest0-21swapper/120:32:061
2725991711,4cyclictest81ktimersoftd/000:15:120
2725991710,3cyclictest0-21swapper/022:11:580
2725991710,2cyclictest0-21swapper/023:38:290
2726991615,1cyclictest4725-21apache219:28:541
2726991614,2cyclictest0-21swapper/120:27:431
2726991612,3cyclictest4725-21apache219:56:461
272699161,10cyclictest0-21swapper/120:36:571
2726991610,3cyclictest0-21swapper/100:09:141
272599162,8cyclictest0-21swapper/022:51:580
2725991610,5cyclictest81ktimersoftd/019:11:570
272599152,10cyclictest0-21swapper/022:41:550
2725991513,1cyclictest1879-21ntpq20:27:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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