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2026-04-30 - 10:30
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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 Thu Apr 30, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1994126957,8sleep00-21swapper/019:06:200
1977626855,8sleep10-21swapper/119:04:361
274572650,0sleep00-21swapper/000:11:070
20384993410,22cyclictest0-21swapper/122:33:451
20383992820,6cyclictest14580-21apache223:14:250
2038399271,22cyclictest0-21swapper/022:45:570
20384992610,9cyclictest0-21swapper/121:45:421
20384992610,0cyclictest0-21swapper/121:15:241
20383992611,8cyclictest100250irq/107-eth1-rx21:52:220
20384992525,0cyclictest0-21swapper/123:48:371
20384992513,3cyclictest100250irq/107-eth1-rx22:35:431
2038499250,21cyclictest0-21swapper/122:27:501
20383992519,2cyclictest6723-21kworker/u4:021:54:070
20383992510,9cyclictest0-21swapper/000:26:520
20383992510,1cyclictest0-21swapper/022:58:590
2038399250,22cyclictest0-21swapper/022:14:350
2038499243,20cyclictest0-21swapper/119:29:151
20384992410,6cyclictest0-21swapper/123:56:341
20384992410,11cyclictest0-21swapper/122:16:151
20383992410,9cyclictest0-21swapper/022:02:200
20383992410,1cyclictest0-21swapper/022:10:480
2038399240,16cyclictest0-21swapper/023:29:090
2038499232,12cyclictest0-21swapper/123:59:131
20384992317,5cyclictest14551-21apache200:31:461
2038399235,12cyclictest0-21swapper/022:59:230
20383992314,4cyclictest81ktimersoftd/020:54:150
20383992310,6cyclictest0-21swapper/022:19:100
20384992217,4cyclictest14580-21apache221:32:401
20384992210,7cyclictest0-21swapper/120:39:171
20384992210,5cyclictest0-21swapper/121:09:161
2038399225,8cyclictest0-21swapper/023:25:550
20383992213,5cyclictest0-21swapper/021:11:020
20383992210,8cyclictest0-21swapper/019:54:170
20383992210,7cyclictest0-21swapper/021:38:380
20383992210,4cyclictest0-21swapper/020:04:160
20384992120,0cyclictest231ktimersoftd/122:06:271
20384992114,4cyclictest0-21swapper/100:34:161
20384992112,7cyclictest19650-21munin-node23:40:511
20384992110,7cyclictest0-21swapper/121:57:161
20384992110,6cyclictest0-21swapper/119:54:181
20384992110,5cyclictest0-21swapper/123:29:051
20384992110,5cyclictest0-21swapper/123:13:111
20384992110,4cyclictest0-21swapper/122:21:221
2038499210,9cyclictest13634-21ssh22:59:141
20383992118,2cyclictest81ktimersoftd/023:39:070
20383992115,5cyclictest14551-21apache222:52:420
20383992112,9cyclictest0-21swapper/000:24:020
20383992111,4cyclictest0-21swapper/021:04:210
20383992111,3cyclictest0-21swapper/020:09:190
20383992110,6cyclictest0-21swapper/000:15:420
20383992110,5cyclictest0-21swapper/022:39:240
20383992110,5cyclictest0-21swapper/021:44:230
20383992110,5cyclictest0-21swapper/020:24:150
20383992110,4cyclictest0-21swapper/020:44:210
2038399210,14cyclictest0-21swapper/021:15:550
2038499205,9cyclictest0-21swapper/119:09:211
2038499205,8cyclictest0-21swapper/119:59:151
20384992011,3cyclictest0-21swapper/123:16:081
20384992010,7cyclictest0-21swapper/121:59:351
20384992010,4cyclictest11886-21head20:09:231
20384992010,3cyclictest0-21swapper/123:24:031
20384992010,10cyclictest0-21swapper/122:57:071
20383992018,1cyclictest81ktimersoftd/021:29:140
2038399201,18cyclictest4646-21/usr/sbin/munin19:49:220
20383992010,6cyclictest0-21swapper/023:09:150
20383992010,6cyclictest0-21swapper/023:05:030
20383992010,3cyclictest0-21swapper/022:05:180
2038399200,20cyclictest0-21swapper/023:59:020
2038399200,16cyclictest0-21swapper/023:20:340
2038399200,15cyclictest1571-21diskmemload00:03:530
2038399200,15cyclictest0-21swapper/020:34:190
296121910,0sleep10-21swapper/121:50:181
2038499197,7cyclictest26615-21python21:39:211
2038499193,7cyclictest0-21swapper/120:29:141
2038499192,13cyclictest0-21swapper/123:19:141
20384991912,4cyclictest0-21swapper/123:36:351
20384991912,3cyclictest26548-21kworker/1:100:07:131
20384991911,5cyclictest0-21swapper/123:52:251
20384991911,4cyclictest14551-21apache200:11:221
20384991910,6cyclictest0-21swapper/100:21:441
20384991910,5cyclictest0-21swapper/121:36:401
20384991910,5cyclictest0-21swapper/120:44:151
20384991910,4cyclictest0-21swapper/120:49:241
20384991910,4cyclictest0-21swapper/100:15:051
20384991910,3cyclictest0-21swapper/120:54:151
20384991910,1cyclictest0-21swapper/123:07:521
2038499190,6cyclictest0-21swapper/119:39:231
2038399193,6cyclictest25322-21munin-run00:09:030
20383991918,1cyclictest14580-21apache200:31:180
20383991910,5cyclictest0-21swapper/023:38:360
20383991910,4cyclictest0-21swapper/021:40:030
20383991910,2cyclictest0-21swapper/023:49:240
20383991910,2cyclictest0-21swapper/000:37:220
2038499184,8cyclictest0-21swapper/119:44:191
2038499183,7cyclictest15718-21ntp_states20:19:211
2038499183,13cyclictest795-21sensors_temp21:04:251
2038499182,9cyclictest0-21swapper/119:14:221
20384991818,0cyclictest0-21swapper/120:27:261
20384991812,4cyclictest14551-21apache221:01:061
2038499181,10cyclictest0-21swapper/119:34:151
20384991810,8cyclictest0-21swapper/119:49:211
20384991810,4cyclictest0-21swapper/122:46:081
20384991810,4cyclictest0-21swapper/121:19:141
20384991810,3cyclictest0-21swapper/122:09:591
20384991810,3cyclictest0-21swapper/119:19:141
20384991810,1cyclictest0-21swapper/121:28:301
2038399185,8cyclictest0-21swapper/020:19:150
2038399185,11cyclictest0-21swapper/021:24:150
2038399182,6cyclictest0-21swapper/020:14:130
20383991813,5cyclictest14551-21apache222:26:320
20383991810,5cyclictest0-21swapper/019:16:270
20383991810,4cyclictest0-21swapper/021:19:110
20383991810,3cyclictest0-21swapper/019:24:170
20383991810,2cyclictest0-21swapper/019:09:130
2566421710,1sleep00-21swapper/019:20:360
20384991715,1cyclictest277272sleep119:27:111
20384991710,4cyclictest0-21swapper/122:53:261
20384991710,4cyclictest0-21swapper/122:39:161
20384991710,4cyclictest0-21swapper/120:04:231
20384991710,3cyclictest0-21swapper/100:26:421
2038399177,7cyclictest0-21swapper/020:29:130
2038399175,7cyclictest27919-21latency_hist19:29:030
2038399173,8cyclictest1571-21diskmemload22:32:490
20383991711,3cyclictest22716-21kworker/0:220:00:270
20383991710,5cyclictest0-21swapper/022:34:300
20383991710,1cyclictest0-21swapper/020:53:210
1432621710,0sleep10-21swapper/120:15:161
3171221610,0sleep00-21swapper/019:38:510
2038499165,8cyclictest0-21swapper/120:34:221
2038399165,8cyclictest22619-21/usr/sbin/munin20:39:180
20383991611,4cyclictest22716-21kworker/0:223:47:090
20383991610,3cyclictest0-21swapper/019:39:590
2038399151,12cyclictest0-21swapper/019:44:140
20383991510,2cyclictest0-21swapper/020:59:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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