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2025-12-27 - 15:50
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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 376 highest latencies:
System rackcslot2.osadl.org (updated Sat Dec 27, 2025 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
703127058,8sleep10-21swapper/107:06:021
157562700,0sleep10-21swapper/112:25:081
697526654,8sleep00-21swapper/007:05:270
158822650,1sleep00-21swapper/007:30:110
11692560,0sleep10-21swapper/112:05:501
7584994010,0cyclictest0-21swapper/111:35:121
7584993210,20cyclictest0-21swapper/109:49:011
7583993131,0cyclictest0-21swapper/011:08:450
7583993020,10cyclictest0-21swapper/009:24:320
7584992910,1cyclictest0-21swapper/111:54:061
7583992910,0cyclictest0-21swapper/010:29:440
758399290,1cyclictest19325-21perf12:29:560
758399282,22cyclictest0-21swapper/010:30:250
7584992725,1cyclictest22906-21ssh11:11:201
7583992610,11cyclictest0-21swapper/010:37:160
758399260,18cyclictest0-21swapper/010:47:550
758499253,21cyclictest0-21swapper/109:24:361
7584992510,15cyclictest0-21swapper/110:14:561
758499250,22cyclictest21784-21hddtemp_smartct10:30:101
7584992419,3cyclictest23883-21apache207:10:121
758499232,20cyclictest5578-21munin-run09:29:551
7584992319,3cyclictest17422-21apache209:44:161
7584992315,5cyclictest17394-21apache210:38:301
7584992311,8cyclictest0-21swapper/112:35:151
758399234,11cyclictest0-21swapper/009:40:150
758399233,13cyclictest0-21swapper/010:05:430
7583992321,1cyclictest12702-21if_eth011:40:100
7583992316,6cyclictest0-21swapper/012:11:180
7583992310,1cyclictest0-21swapper/011:27:440
7583992310,11cyclictest0-21swapper/009:27:550
758399230,22cyclictest0-21swapper/012:15:120
7584992218,3cyclictest17422-21apache209:16:011
7584992211,3cyclictest5524-21/usr/sbin/munin10:10:171
7584992210,6cyclictest0-21swapper/110:45:471
758399228,10cyclictest0-21swapper/010:17:420
7583992220,2cyclictest0-21swapper/009:34:150
7583992215,3cyclictest0-21swapper/012:03:330
7583992210,4cyclictest0-21swapper/011:32:220
7583992210,4cyclictest0-21swapper/009:10:140
758499214,8cyclictest0-21swapper/109:05:101
758499214,14cyclictest0-21swapper/112:22:531
758499213,12cyclictest0-21swapper/108:40:101
758499212,18cyclictest0-21swapper/110:25:321
7584992116,4cyclictest17394-21apache209:36:391
7584992116,3cyclictest744-21snmpd08:34:391
7584992115,3cyclictest231ktimersoftd/110:00:571
7584992113,3cyclictest0-21swapper/108:11:351
7584992110,4cyclictest0-21swapper/111:05:311
758399214,9cyclictest0-21swapper/007:45:080
758399212,3cyclictest5529-21apache_processe10:10:080
7583992115,6cyclictest17394-21apache211:47:200
7583992114,4cyclictest25680-21sh11:55:300
7583992113,5cyclictest100150irq/106-eth1-rx12:35:090
7583992110,7cyclictest0-21swapper/011:34:580
7583992110,4cyclictest0-21swapper/010:22:260
7583992110,3cyclictest0-21swapper/011:20:120
7583992110,3cyclictest0-21swapper/011:00:100
7583992110,3cyclictest0-21swapper/008:05:110
7583992110,11cyclictest0-21swapper/012:33:320
7583992110,0cyclictest0-21swapper/012:20:390
758399210,2cyclictest0-21swapper/008:00:070
1028022110,0sleep10-21swapper/112:17:591
758499207,9cyclictest0-21swapper/109:13:451
758499205,8cyclictest0-21swapper/108:45:151
758499204,6cyclictest0-21swapper/108:05:111
758499204,10cyclictest0-21swapper/107:50:161
758499203,11cyclictest0-21swapper/109:00:101
7584992017,1cyclictest100150irq/106-eth1-rx10:42:591
7584992013,5cyclictest0-21swapper/111:45:281
7584992010,5cyclictest0-21swapper/111:28:551
7584992010,4cyclictest0-21swapper/111:15:091
758499200,3cyclictest0-21swapper/107:55:111
758399207,8cyclictest21443-21diskmemload09:48:450
758399206,7cyclictest0-21swapper/008:25:130
758399205,7cyclictest0-21swapper/011:16:420
758399203,7cyclictest0-21swapper/010:55:130
7583992010,5cyclictest0-21swapper/010:40:090
7583992010,3cyclictest0-21swapper/008:15:130
456022010,0sleep10-21swapper/110:08:211
3218222010,0sleep00-21swapper/010:02:070
137122010,0sleep00-21swapper/012:06:170
758499199,7cyclictest0-21swapper/111:00:041
758499195,9cyclictest4984-21apache_accesses10:50:061
758499194,8cyclictest0-21swapper/108:15:071
758499194,11cyclictest0-21swapper/108:55:181
7584991910,6cyclictest0-21swapper/109:34:491
7584991910,4cyclictest0-21swapper/109:57:201
7584991910,3cyclictest0-21swapper/111:44:351
7584991910,3cyclictest0-21swapper/107:30:111
758399195,7cyclictest0-21swapper/008:30:180
758399192,11cyclictest0-21swapper/008:10:110
7583991917,1cyclictest17394-21apache208:23:380
7583991917,1cyclictest15158-21xargs07:29:550
7583991914,4cyclictest100150irq/106-eth1-rx09:15:540
7583991910,5cyclictest0-21swapper/008:45:090
7583991910,5cyclictest0-21swapper/008:35:090
7583991910,4cyclictest0-21swapper/007:35:140
7583991910,3cyclictest7-21ksoftirqd/007:50:080
7583991910,1cyclictest0-21swapper/011:10:380
758499182,7cyclictest0-21swapper/111:21:531
758499182,11cyclictest0-21swapper/107:15:091
758499181,11cyclictest0-21swapper/109:52:201
7584991810,2cyclictest0-21swapper/110:57:311
7584991810,1cyclictest0-21swapper/108:51:571
7584991810,0cyclictest0-21swapper/112:30:051
758499180,11cyclictest0-21swapper/111:32:491
758399184,8cyclictest0-21swapper/010:50:080
7583991817,1cyclictest17394-21apache209:36:270
7583991816,1cyclictest155172sleep008:53:530
7583991812,3cyclictest17394-21apache209:56:040
7583991810,8cyclictest0-21swapper/007:19:330
7583991810,4cyclictest0-21swapper/009:52:440
758499176,5cyclictest0-21swapper/107:45:091
758499174,9cyclictest0-21swapper/107:25:071
758499173,6cyclictest21443-21diskmemload12:10:071
758499172,10cyclictest0-21swapper/108:27:241
7584991715,1cyclictest0-21swapper/107:34:561
7584991714,1cyclictest0-21swapper/108:37:251
7584991710,7cyclictest0-21swapper/108:20:071
7584991710,5cyclictest0-21swapper/112:01:251
7584991710,4cyclictest0-21swapper/108:00:071
7584991710,2cyclictest0-21swapper/110:20:101
7584991710,0cyclictest0-21swapper/111:55:351
7584991710,0cyclictest0-21swapper/107:24:471
758399175,4cyclictest0-21swapper/009:05:060
758399172,10cyclictest0-21swapper/009:00:130
758399171,7cyclictest10363-21fschecks_time08:40:080
7583991715,1cyclictest7-21ksoftirqd/007:10:120
7583991710,3cyclictest0-21swapper/007:55:060
7583991710,1cyclictest0-21swapper/008:55:160
758499161,6cyclictest19416-21apache_accesses07:40:061
758399163,8cyclictest0-21swapper/007:40:110
7583991610,3cyclictest0-21swapper/007:20:080
7583991610,1cyclictest0-21swapper/011:52:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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