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2026-05-29 - 19:37
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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 May 29, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
188032309283,17sleep10-21swapper/107:07:111
187642299267,21sleep20-21swapper/207:06:412
190342270239,20sleep30-21swapper/307:09:563
189552267237,20sleep00-21swapper/007:08:590
266712610,0sleep10-21swapper/112:23:161
99412590,0sleep20-21swapper/211:15:142
64682590,0sleep10-21swapper/109:55:171
77062580,0sleep30-21swapper/311:52:193
207142550,0sleep10-21swapper/110:42:421
98372190,0sleep10-21swapper/110:16:401
106322180,0sleep10-21swapper/110:55:521
59812160,0sleep20-21swapper/208:05:182
237772140,0sleep00-21swapper/009:00:130
147032140,0sleep20-21swapper/211:56:192
147032140,0sleep20-21swapper/211:56:182
57842120,0sleep30-21swapper/312:10:183
324232110,0sleep20-21swapper/209:12:322
26769290,0sleep30-21swapper/312:04:123
23392290,0sleep00-21swapper/011:04:150
24549280,0sleep20-21swapper/210:25:222
191599987,1cyclictest34-21ksoftirqd/307:35:013
191599986,1cyclictest22427-21ssh10:44:013
191549985,2cyclictest504-21dbus-daemon08:48:012
191519984,3cyclictest12967-21cron11:17:001
191519983,4cyclictest22-21ksoftirqd/107:25:011
191519982,4cyclictest2130-21perf08:00:011
191519982,4cyclictest20675-21idleruntime-cro08:55:001
12330280,0sleep00-21swapper/011:35:190
9358270,0sleep20-21swapper/212:12:442
31748270,0sleep30-21swapper/312:25:463
191599975,1cyclictest34-21ksoftirqd/309:40:003
191599973,3cyclictest658-21snmpd09:10:313
191599973,3cyclictest658-21snmpd07:25:563
191599973,3cyclictest527-21gdbus11:30:343
191599973,3cyclictest275-21systemd-journal07:44:083
191599973,3cyclictest15052-11brltty09:43:543
191599970,3cyclictest5002-21df08:05:113
191549974,2cyclictest504-21dbus-daemon11:46:122
191549974,2cyclictest275-21systemd-journal09:23:022
191549973,3cyclictest658-21snmpd07:17:402
191549973,2cyclictest275-21systemd-journal10:36:042
191549970,7cyclictest18871-21ssh10:02:542
191519975,2cyclictest22297-21kworker/1:111:49:211
191519973,3cyclictest658-21snmpd11:54:411
191519973,3cyclictest658-21snmpd10:33:411
191519970,7cyclictest30793-21ssh10:49:091
191519970,6cyclictest19778-21sh09:24:571
191489976,1cyclictest2713-21ssh10:51:080
191489976,1cyclictest12-21ksoftirqd/011:15:000
191489973,3cyclictest504-21dbus-daemon10:27:400
191489973,3cyclictest275-21systemd-journal11:30:220
191489973,3cyclictest275-21systemd-journal11:30:010
191489973,3cyclictest275-21systemd-journal09:41:220
16569270,0sleep00-21swapper/010:01:090
14179270,1sleep0131rcuc/011:17:560
11559270,0sleep30-21swapper/311:35:133
191599966,0cyclictest0-21swapper/312:20:143
191599966,0cyclictest0-21swapper/312:16:453
191599966,0cyclictest0-21swapper/307:51:243
191599965,1cyclictest0-21swapper/312:30:423
191599963,2cyclictest658-21snmpd08:14:573
191599963,2cyclictest501-21in:imuxsock11:15:173
191599963,2cyclictest2917-21ssh09:34:083
191599963,2cyclictest29116-21ssh11:26:383
191599963,2cyclictest20562-21smart_sda07:10:173
191599963,2cyclictest13552-21rm10:00:023
191599962,3cyclictest658-21snmpd11:02:353
191599962,3cyclictest658-21snmpd10:50:083
191599962,3cyclictest658-21snmpd10:37:303
191599962,3cyclictest658-21snmpd08:58:533
191599962,3cyclictest658-21snmpd08:50:353
191599962,3cyclictest658-21snmpd08:28:333
191599962,3cyclictest658-21snmpd08:20:363
191599962,3cyclictest658-21snmpd07:22:013
191599962,3cyclictest4448-21cat09:15:143
191599962,3cyclictest31907-21cat10:10:203
191599962,3cyclictest275-21systemd-journal12:06:133
191599962,3cyclictest275-21systemd-journal09:05:063
191599962,3cyclictest15302-21cut10:20:143
191599962,3cyclictest0-21swapper/311:45:213
191599962,1cyclictest0-21swapper/311:59:473
191599962,1cyclictest0-21swapper/311:59:473
191599962,1cyclictest0-21swapper/311:23:443
191599962,1cyclictest0-21swapper/311:11:363
191599962,1cyclictest0-21swapper/310:49:303
191599962,1cyclictest0-21swapper/310:27:383
191599962,1cyclictest0-21swapper/310:17:383
191599962,1cyclictest0-21swapper/310:08:213
191599962,1cyclictest0-21swapper/309:45:173
191599962,1cyclictest0-21swapper/307:15:473
191599960,6cyclictest0-21swapper/311:08:333
191599960,6cyclictest0-21swapper/309:55:403
191599960,6cyclictest0-21swapper/309:50:163
191599960,2cyclictest8238-21ssh10:55:123
191599960,2cyclictest24116-21ntp_states09:00:173
191599960,1cyclictest141rcu_preempt10:30:023
191599960,0cyclictest0-21swapper/311:41:023
191599960,0cyclictest0-21swapper/309:22:053
191549964,1cyclictest24884-21sed07:25:012
191549964,1cyclictest13859-21grep08:35:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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