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2025-11-16 - 03:31
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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 Sun Nov 16, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2504628159,17sleep00-21swapper/019:03:200
30852760,0sleep10-21swapper/123:56:381
2509027057,9sleep10-21swapper/119:03:471
261672610,0sleep10-21swapper/119:07:071
261472390,1sleep126146-21grep23:42:101
25562993838,0cyclictest0-21swapper/019:21:140
25562993310,22cyclictest0-21swapper/022:46:070
2556399320,2cyclictest5594-21apache_accesses22:32:011
25562993211,20cyclictest0-21swapper/000:24:520
25562993010,0cyclictest0-21swapper/000:31:580
25562992910,18cyclictest0-21swapper/022:24:400
25562992910,13cyclictest0-21swapper/000:02:010
2249322910,0sleep10-21swapper/123:37:221
2556399280,0cyclictest0-21swapper/122:49:051
25563992723,1cyclictest30260-21if_eth320:42:061
2556399270,14cyclictest1888-21kworker/u4:122:31:001
2556399270,12cyclictest0-21swapper/121:52:021
25563992610,10cyclictest0-21swapper/123:22:041
25562992626,0cyclictest0-21swapper/021:28:120
25562992611,13cyclictest0-21swapper/000:28:540
25563992519,3cyclictest22120-21apache222:41:051
2556399250,3cyclictest0-21swapper/121:38:181
2556399250,19cyclictest98050irq/109-eth1-tx23:09:341
2556299253,4cyclictest0-21swapper/019:55:350
25562992510,1cyclictest0-21swapper/021:13:590
2556299250,21cyclictest0-21swapper/023:20:480
25563992416,5cyclictest22095-21apache223:18:141
25562992422,1cyclictest0-21swapper/023:15:390
25562992410,6cyclictest0-21swapper/022:27:180
2556399234,18cyclictest0-21swapper/100:03:521
2556399233,13cyclictest0-21swapper/122:03:171
2556299233,18cyclictest25204-21ssh22:57:180
25562992323,0cyclictest0-21swapper/000:20:440
25562992317,5cyclictest817-21apache223:36:120
25562992310,7cyclictest0-21swapper/022:07:310
2556299230,10cyclictest0-21swapper/019:37:020
2556399224,17cyclictest14413-21/usr/sbin/munin00:12:091
25563992220,1cyclictest5908-21processes21:02:081
25563992211,4cyclictest0-21swapper/123:47:101
25563992210,7cyclictest0-21swapper/119:17:061
2556399220,21cyclictest0-21swapper/121:21:421
25562992220,1cyclictest636-21nscd21:57:500
25562992217,4cyclictest81ktimersoftd/021:47:040
25562992216,5cyclictest22120-21apache222:14:290
25562992210,7cyclictest0-21swapper/023:51:090
25562992210,6cyclictest0-21swapper/000:07:360
25562992210,4cyclictest0-21swapper/021:07:000
25562992210,3cyclictest0-21swapper/023:23:230
2556299220,13cyclictest0-21swapper/021:31:590
25563992120,1cyclictest22095-21apache223:00:191
2556399211,4cyclictest0-21swapper/121:51:431
25563992113,2cyclictest0-21swapper/122:54:391
25563992110,5cyclictest0-21swapper/123:32:121
25563992110,5cyclictest0-21swapper/100:17:051
25563992110,3cyclictest0-21swapper/122:11:591
25563992110,3cyclictest0-21swapper/100:07:041
2556399210,20cyclictest15234-21kworker/1:120:15:081
2556299214,7cyclictest6778-21diskmemload21:17:030
25562992119,1cyclictest817-21apache221:53:200
25562992119,1cyclictest0-21swapper/022:19:280
25562992111,2cyclictest22120-21apache222:46:520
25562992110,7cyclictest0-21swapper/022:34:220
25562992110,4cyclictest0-21swapper/023:54:430
25562992110,4cyclictest0-21swapper/000:15:560
25562992110,3cyclictest0-21swapper/023:01:570
2556299210,3cyclictest0-21swapper/023:57:490
2556399205,7cyclictest0-21swapper/120:37:101
2556399203,7cyclictest0-21swapper/100:36:081
25563992020,0cyclictest0-21swapper/123:57:381
25563992013,4cyclictest0-21swapper/121:06:581
25563992011,4cyclictest0-21swapper/122:17:101
2556399201,13cyclictest27314-21users21:32:091
25563992010,5cyclictest0-21swapper/120:22:011
25563992010,4cyclictest0-21swapper/121:57:051
25563992010,2cyclictest0-21swapper/123:30:051
25563992010,2cyclictest0-21swapper/119:32:021
2556299205,7cyclictest0-21swapper/019:22:040
2556299205,15cyclictest22833-21kworker/0:220:39:080
2556299203,16cyclictest0-21swapper/022:04:260
25562992013,4cyclictest81ktimersoftd/023:37:060
25562992013,4cyclictest0-21swapper/020:09:120
25562992010,4cyclictest0-21swapper/020:57:000
2556299200,19cyclictest0-21swapper/019:57:520
2452422010,0sleep10-21swapper/121:29:241
56102197,0sleep10-21swapper/123:16:131
2556399198,7cyclictest0-21swapper/122:07:091
2556399193,8cyclictest0-21swapper/120:32:091
2556399192,8cyclictest0-21swapper/122:21:571
2556399192,10cyclictest0-21swapper/121:22:011
25563991916,2cyclictest97850irq/107-eth1-rx00:23:081
25563991910,7cyclictest0-21swapper/120:07:091
25563991910,3cyclictest0-21swapper/121:42:061
25563991910,1cyclictest0-21swapper/119:12:031
2556399190,2cyclictest0-21swapper/122:44:041
2556299193,10cyclictest0-21swapper/023:42:070
25562991918,0cyclictest0-21swapper/023:09:100
25562991916,2cyclictest22095-21apache221:43:100
25562991915,2cyclictest0-21swapper/019:07:030
25562991910,2cyclictest0-21swapper/021:22:010
1246121910,0sleep10-21swapper/121:12:411
25563991813,3cyclictest25320-21runrttasks20:27:501
25563991810,6cyclictest18540-21snmpd19:50:101
2556299185,8cyclictest0-21swapper/020:17:040
2556299181,2cyclictest0-21swapper/022:56:200
25562991812,3cyclictest0-21swapper/021:02:000
2556399174,7cyclictest0-21swapper/119:22:121
2556399173,8cyclictest0-21swapper/119:42:021
2556399172,7cyclictest0-21swapper/120:17:091
25563991710,0cyclictest0-21swapper/123:02:041
2556299177,6cyclictest97750irq/106-eth1-rx20:02:000
2556299171,7cyclictest0-21swapper/020:12:030
25562991710,3cyclictest0-21swapper/022:37:300
25562991710,1cyclictest0-21swapper/019:12:130
2556299170,8cyclictest6778-21diskmemload21:37:070
2556299170,15cyclictest0-21swapper/020:30:140
1006221710,0sleep00-21swapper/019:49:250
3124521610,0sleep00-21swapper/020:44:260
2556399161,7cyclictest0-21swapper/120:49:231
25563991615,1cyclictest24650-21ssh00:26:591
25563991610,6cyclictest0-21swapper/119:57:061
25563991610,2cyclictest0-21swapper/119:52:031
2556299163,5cyclictest0-21swapper/019:42:100
25562991614,1cyclictest13726-21apache_volume23:27:000
25562991610,2cyclictest0-21swapper/020:26:430
25562991610,2cyclictest0-21swapper/019:27:090
2556299160,9cyclictest0-21swapper/020:47:100
2556299160,7cyclictest0-21swapper/020:32:080
2556399154,4cyclictest5710-21/usr/sbin/munin19:37:101
25563991510,3cyclictest0-21swapper/119:27:041
25563991510,0cyclictest0-21swapper/120:54:471
2556299150,8cyclictest2799-21apache_processe19:32:020
25563991414,0cyclictest231ktimersoftd/120:57:011
25563991410,2cyclictest0-21swapper/120:01:551
25562991412,1cyclictest1111-21runrttasks20:52:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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