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2026-05-13 - 06:17
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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 Wed May 13, 2026 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
324672740,1sleep00-21swapper/022:32:140
1900227358,10sleep10-21swapper/119:06:381
1885126754,8sleep00-21swapper/019:05:050
110372640,1sleep10-21swapper/100:14:101
19407993513,22cyclictest0-21swapper/122:15:101
273092340,1sleep027303-21unixbench_multi22:24:170
19407993410,23cyclictest0-21swapper/100:31:581
19406993410,21cyclictest0-21swapper/020:04:140
188432330,0sleep018841-21switchtime20:29:150
19407993018,6cyclictest0-21swapper/123:44:081
1940699300,29cyclictest0-21swapper/000:15:400
19407992929,0cyclictest0-21swapper/122:40:451
19406992929,0cyclictest0-21swapper/021:03:560
19406992910,15cyclictest0-21swapper/023:05:270
19407992817,7cyclictest10101-21apache200:22:461
19407992810,2cyclictest0-21swapper/121:20:021
19407992810,13cyclictest0-21swapper/123:39:481
19406992622,4cyclictest0-21swapper/020:09:470
19407992520,4cyclictest10088-21apache200:09:421
19407992510,10cyclictest0-21swapper/121:42:141
19406992524,0cyclictest522-21diskmemload21:51:390
1940699251,23cyclictest0-21swapper/023:19:120
19406992510,6cyclictest0-21swapper/022:09:280
19407992424,0cyclictest0-21swapper/122:49:161
19407992422,1cyclictest2955-21munin-run21:53:571
19407992410,12cyclictest0-21swapper/123:34:521
19406992422,1cyclictest636-21nscd21:32:160
19406992420,4cyclictest0-21swapper/020:00:590
19406992417,4cyclictest10101-21apache200:22:280
19406992410,5cyclictest0-21swapper/022:43:540
19407992316,5cyclictest10101-21apache223:09:051
19407992316,2cyclictest0-21swapper/120:14:091
19406992320,3cyclictest10088-21apache223:53:500
19406992318,4cyclictest81ktimersoftd/020:19:130
19406992315,7cyclictest10101-21apache219:53:570
19406992310,3cyclictest0-21swapper/023:39:540
19406992310,3cyclictest0-21swapper/022:04:090
19406992310,10cyclictest0-21swapper/021:48:320
1940699230,21cyclictest0-21swapper/022:49:430
1940799220,14cyclictest0-21swapper/120:39:161
1940699225,7cyclictest0-21swapper/019:39:140
1940699224,10cyclictest0-21swapper/000:09:150
19406992222,0cyclictest0-21swapper/023:26:490
19406992210,7cyclictest0-21swapper/020:39:150
19406992210,5cyclictest23787-21latency_hist23:03:580
19406992210,4cyclictest0-21swapper/021:39:230
1940699220,18cyclictest0-21swapper/022:00:070
1940799216,12cyclictest0-21swapper/120:04:121
1940799214,10cyclictest0-21swapper/120:29:121
19407992120,1cyclictest10218-21munin-node00:24:531
19407992113,5cyclictest522-21diskmemload21:14:181
1940799211,12cyclictest0-21swapper/119:24:111
19407992110,8cyclictest0-21swapper/121:24:101
19407992110,7cyclictest100250irq/107-eth1-rx21:31:491
19407992110,7cyclictest0-21swapper/120:19:121
19407992110,4cyclictest0-21swapper/122:29:081
19407992110,3cyclictest0-21swapper/119:49:091
19407992110,2cyclictest0-21swapper/119:34:161
1940799210,20cyclictest0-21swapper/123:18:521
1940799210,13cyclictest0-21swapper/100:34:091
1940699218,9cyclictest0-21swapper/021:13:570
1940699212,6cyclictest0-21swapper/000:04:170
19406992117,3cyclictest10088-21apache223:59:030
19406992114,5cyclictest23258-21sh21:37:350
19406992114,5cyclictest10101-21apache200:34:430
19406992111,6cyclictest100150irq/106-eth1-rx22:44:480
1940699211,10cyclictest0-21swapper/021:27:360
19406992110,6cyclictest0-21swapper/021:18:590
19406992110,4cyclictest0-21swapper/023:34:150
19406992110,2cyclictest0-21swapper/022:17:480
19406992110,11cyclictest0-21swapper/020:18:350
2194122010,0sleep10-21swapper/123:00:211
1940799204,12cyclictest0-21swapper/121:44:091
1940799203,10cyclictest0-21swapper/119:09:091
1940799202,15cyclictest0-21swapper/121:34:091
1940799202,13cyclictest0-21swapper/123:49:131
19407992020,0cyclictest0-21swapper/122:56:341
19407992017,3cyclictest10088-21apache223:57:191
19407992011,3cyclictest0-21swapper/123:21:361
19407992010,6cyclictest0-21swapper/120:24:171
19407992010,5cyclictest0-21swapper/119:19:181
19407992010,4cyclictest0-21swapper/123:59:101
19407992010,4cyclictest0-21swapper/120:59:111
19407992010,3cyclictest0-21swapper/122:05:571
1940699205,3cyclictest0-21swapper/019:44:140
1940699203,11cyclictest0-21swapper/020:34:160
19406992011,7cyclictest100150irq/106-eth1-rx23:46:220
1940699200,3cyclictest5543-21memory21:14:140
1940699200,12cyclictest17203-21ntp_states22:54:150
1028722010,0sleep10-21swapper/122:03:181
1940799194,8cyclictest0-21swapper/119:29:101
1940799194,10cyclictest0-21swapper/119:44:091
19407991918,1cyclictest10088-21apache220:58:511
19407991911,5cyclictest0-21swapper/120:44:091
19407991910,5cyclictest0-21swapper/122:25:201
19407991910,5cyclictest0-21swapper/120:09:101
19407991910,4cyclictest0-21swapper/122:34:111
19407991910,4cyclictest0-21swapper/121:57:341
1940799190,12cyclictest0-21swapper/120:34:161
1940699194,11cyclictest0-21swapper/023:54:140
19406991918,0cyclictest7-21ksoftirqd/022:23:570
19406991912,2cyclictest0-21swapper/023:33:360
19406991911,5cyclictest100150irq/106-eth1-rx19:34:120
19406991910,4cyclictest0-21swapper/020:44:100
19406991910,3cyclictest0-21swapper/000:24:140
19406991910,2cyclictest0-21swapper/000:29:010
19406991910,1cyclictest0-21swapper/023:15:480
19406991910,1cyclictest0-21swapper/022:37:220
1940699190,8cyclictest0-21swapper/019:14:090
1940699190,12cyclictest0-21swapper/021:54:150
1940799185,8cyclictest0-21swapper/119:39:131
1940799183,9cyclictest0-21swapper/119:54:181
19407991815,2cyclictest522-21diskmemload23:33:291
19407991813,2cyclictest19404-21cyclictest23:04:081
19407991810,3cyclictest0-21swapper/122:44:021
1940699184,9cyclictest0-21swapper/020:54:090
1940699183,14cyclictest0-21swapper/020:49:180
1940699182,6cyclictest0-21swapper/019:24:040
19406991812,5cyclictest100150irq/106-eth1-rx19:19:150
19406991810,6cyclictest0-21swapper/023:11:190
19406991810,4cyclictest0-21swapper/019:09:120
1940799176,8cyclictest0-21swapper/122:19:171
1940799174,8cyclictest0-21swapper/123:24:541
1940799172,14cyclictest0-21swapper/122:13:161
1940799171,5cyclictest0-21swapper/121:04:121
19407991715,1cyclictest231ktimersoftd/100:05:101
19407991710,3cyclictest0-21swapper/121:12:031
19407991710,1cyclictest0-21swapper/119:17:591
19406991710,3cyclictest17490-21runrttasks20:27:360
19406991710,2cyclictest0-21swapper/019:49:110
19407991610,3cyclictest0-21swapper/120:49:111
19406991610,4cyclictest0-21swapper/019:29:090
19407991510,2cyclictest0-21swapper/119:59:121
19406991510,0cyclictest0-21swapper/021:04:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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