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2026-07-18 - 01:16
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackaslot8.osadl.org (updated Fri Jul 17, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21162304277,18sleep10-21swapper/107:08:401
22202301251,22sleep20-21swapper/207:09:462
21962268238,19sleep00-21swapper/007:09:260
22212253221,21sleep30-21swapper/307:09:473
284422590,0sleep10-21swapper/111:29:151
141472540,0sleep00-21swapper/011:20:170
184212180,0sleep10-21swapper/112:01:491
58532150,0sleep00-21swapper/009:17:510
220682150,0sleep10-21swapper/112:24:071
69792140,0sleep10-21swapper/109:38:061
203472140,0sleep00-21swapper/011:04:540
154932140,0sleep10-21swapper/110:42:061
13692140,0sleep20-21swapper/212:10:552
234799109,1cyclictest22-21ksoftirqd/107:25:021
23519983,3cyclictest275-21systemd-journal07:30:312
23519982,3cyclictest21152-21awk07:50:022
23479980,7cyclictest4401-21ssh09:55:431
23429986,2cyclictest12-21ksoftirqd/010:15:010
23395280,0sleep00-21swapper/010:27:180
14626280,0sleep10-21swapper/107:35:131
6588270,0sleep10-21swapper/110:17:031
23569974,2cyclictest275-21systemd-journal12:06:033
23569973,3cyclictest658-21snmpd07:49:243
23569973,3cyclictest658-21snmpd07:20:223
23569973,3cyclictest29003-21ntpq08:05:213
23569973,2cyclictest275-21systemd-journal10:46:313
23519976,1cyclictest9620-21ssh10:19:242
23519974,2cyclictest658-21snmpd09:40:092
23519974,2cyclictest275-21systemd-journal10:27:312
23519974,2cyclictest275-21systemd-journal08:50:302
23519973,3cyclictest658-21snmpd10:04:012
23519973,3cyclictest658-21snmpd09:00:462
23519973,3cyclictest275-21systemd-journal11:20:002
23519973,3cyclictest275-21systemd-journal10:32:112
23519970,6cyclictest26867-21/usr/sbin/munin10:10:202
23479976,1cyclictest22-21ksoftirqd/110:40:001
23479976,1cyclictest22-21ksoftirqd/110:10:001
23479973,3cyclictest658-21snmpd09:31:031
23479973,3cyclictest31145-21diskstats11:50:121
23479973,3cyclictest26204-21ntpq09:10:161
23479972,1cyclictest0-21swapper/111:55:111
23429977,0cyclictest121ksoftirqd/012:39:590
23429973,3cyclictest658-21snmpd11:10:160
23429973,3cyclictest275-21systemd-journal09:40:290
23429973,3cyclictest275-21systemd-journal09:30:270
23429973,3cyclictest11731-21cut10:20:160
23429971,5cyclictest2703-21ssh10:15:140
12146270,0sleep00-21swapper/008:40:140
9047260,0sleep00-21swapper/010:38:310
23569963,2cyclictest952-21sh12:10:353
23569963,2cyclictest7856-21ssh10:37:373
23569963,2cyclictest658-21snmpd10:30:503
23569963,2cyclictest658-21snmpd10:12:493
23569963,2cyclictest658-21snmpd08:22:093
23569963,2cyclictest5838-21ssh09:56:513
23569963,2cyclictest501-21in:imuxsock11:44:553
23569963,2cyclictest34-21ksoftirqd/311:35:103
23569963,2cyclictest31837-21users08:10:193
23569963,2cyclictest29826-21grep11:10:173
23569963,2cyclictest27905-21ssh10:50:063
23569963,2cyclictest275-21systemd-journal10:05:553
23569963,2cyclictest275-21systemd-journal08:27:003
23569963,2cyclictest25937-21sh11:27:173
23569963,2cyclictest22641-21wc12:04:593
23569963,2cyclictest17863-21ssh11:03:003
23569963,2cyclictest11393-21ssh09:20:283
23569962,3cyclictest658-21snmpd12:30:353
23569962,3cyclictest658-21snmpd12:25:283
23569962,3cyclictest658-21snmpd11:50:073
23569962,3cyclictest658-21snmpd11:45:163
23569962,3cyclictest658-21snmpd11:22:273
23569962,3cyclictest658-21snmpd11:17:163
23569962,3cyclictest658-21snmpd10:41:263
23569962,3cyclictest658-21snmpd09:15:233
23569962,3cyclictest658-21snmpd09:05:023
23569962,3cyclictest658-21snmpd08:59:473
23569962,3cyclictest658-21snmpd08:45:533
23569962,3cyclictest658-21snmpd08:19:333
23569962,3cyclictest658-21snmpd07:30:053
23569962,3cyclictest658-21snmpd07:11:023
23569962,3cyclictest4594-21seq10:15:293
23569962,3cyclictest19477-21grep09:45:213
23569962,3cyclictest19477-21grep09:45:213
23569962,3cyclictest12224-21cat08:40:153
23569962,3cyclictest0-21swapper/310:55:183
23569962,1cyclictest0-21swapper/311:55:243
23569962,1cyclictest0-21swapper/311:32:233
23569962,1cyclictest0-21swapper/310:23:033
23569962,1cyclictest0-21swapper/309:10:173
23569961,4cyclictest19911-21cat10:25:163
23569961,4cyclictest0-21swapper/312:20:103
23569961,3cyclictest658-21snmpd09:50:103
23569960,6cyclictest0-21swapper/309:41:133
23569960,5cyclictest20953-21find11:05:123
23569960,5cyclictest18190-21idleruntime-cro10:05:013
23569960,3cyclictest9162-21sensors_temp12:35:193
23569960,0cyclictest0-21swapper/307:35:033
23519966,0cyclictest0-21swapper/212:02:222
23519966,0cyclictest0-21swapper/209:45:592
23519966,0cyclictest0-21swapper/209:45:592
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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