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2026-09-24 - 19:53
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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 Thu Sep 24, 2026 12:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
129742324294,20sleep20-21swapper/207:09:262
127162295268,18sleep10-21swapper/107:06:081
126822274241,22sleep30-21swapper/307:05:413
126842270239,21sleep00-21swapper/007:05:430
46642660,0sleep20-21swapper/210:09:042
71202590,0sleep20-21swapper/212:25:302
47632580,0sleep30-21swapper/310:28:153
31442550,0sleep10-21swapper/109:48:281
252922510,0sleep00-21swapper/011:00:150
10772180,0sleep20-21swapper/209:46:532
34112170,0sleep20-21swapper/209:10:012
226892160,1sleep20-21swapper/210:20:022
43672150,0sleep30-21swapper/309:30:003
282862130,0sleep20-21swapper/210:23:022
27772130,0sleep30-21swapper/310:07:363
234622130,0sleep00-21swapper/010:39:500
22800290,0sleep30-21swapper/310:00:163
131449986,1cyclictest12225-21tail11:50:143
131449983,3cyclictest275-21systemd-journal09:45:133
131409985,2cyclictest28-21ksoftirqd/208:40:002
131409982,4cyclictest30791-21sshd12:00:562
18624270,0sleep10-21swapper/112:13:391
13348270,1sleep10-21swapper/112:30:051
131449974,2cyclictest3524-21awk11:25:203
131449974,2cyclictest24711-21sshd10:40:133
131449973,3cyclictest275-21systemd-journal09:03:303
131449973,3cyclictest14917-21snmpd08:08:303
131449973,3cyclictest14917-21snmpd07:29:203
131449973,3cyclictest0-21swapper/311:15:263
131449973,2cyclictest275-21systemd-journal08:45:213
131449973,1cyclictest0-21swapper/311:55:313
131449973,1cyclictest0-21swapper/311:00:223
131449972,3cyclictest275-21systemd-journal07:30:013
131409973,3cyclictest275-21systemd-journal11:30:422
131409973,3cyclictest14917-21snmpd11:18:542
131409973,1cyclictest0-21swapper/209:54:072
131409971,1cyclictest141rcu_preempt10:30:002
131359973,3cyclictest14917-21snmpd08:47:181
131359973,3cyclictest14917-21snmpd08:03:531
131359973,2cyclictest23319-21ssh11:56:341
131319974,2cyclictest12-21ksoftirqd/007:15:010
131319973,3cyclictest9180-21cat10:50:210
131319973,3cyclictest275-21systemd-journal11:20:000
131319973,1cyclictest0-21swapper/012:19:540
131319972,3cyclictest275-21systemd-journal09:50:280
131319971,3cyclictest560-21gdbus09:10:000
131319970,4cyclictest6179-21perf08:05:000
27265260,0sleep00-21swapper/012:38:100
131449964,1cyclictest275-21systemd-journal08:20:013
131449963,2cyclictest7928-21ssh09:12:113
131449963,2cyclictest50850irq/136-enp4s0-09:55:123
131449963,2cyclictest504-21dbus-daemon09:50:383
131449963,2cyclictest275-21systemd-journal07:37:073
131449963,2cyclictest23689-21hddtemp_smartct10:20:153
131449963,2cyclictest21763-21ls12:15:143
131449963,2cyclictest21355-21ntpq08:35:183
131449963,2cyclictest20315-21chrt07:24:163
131449963,2cyclictest1821-21rm10:45:193
131449963,2cyclictest1821-21rm10:45:193
131449963,2cyclictest15082-21ssh09:35:333
131449963,2cyclictest14917-21snmpd12:36:573
131449963,2cyclictest14917-21snmpd11:33:533
131449963,2cyclictest0-21swapper/311:46:533
131449963,1cyclictest0-21swapper/310:30:183
131449962,3cyclictest5335-21proc_pri12:05:173
131449962,3cyclictest29083-21head11:40:193
131449962,3cyclictest28420-21cat07:40:153
131449962,3cyclictest2663-21cat07:55:143
131449962,3cyclictest14917-21snmpd12:00:093
131449962,3cyclictest14917-21snmpd11:05:133
131449962,3cyclictest14917-21snmpd09:40:023
131449962,3cyclictest14917-21snmpd08:40:173
131449962,3cyclictest14917-21snmpd08:25:543
131449962,3cyclictest13878-21expr07:10:153
131449962,3cyclictest0-21swapper/309:31:083
131449962,1cyclictest0-21swapper/312:30:213
131449962,1cyclictest0-21swapper/311:12:203
131449961,3cyclictest275-21systemd-journal07:47:133
131449960,6cyclictest0-21swapper/312:27:253
131449960,6cyclictest0-21swapper/309:23:303
131449960,6cyclictest0-21swapper/307:51:133
131449960,3cyclictest29130-21rm12:20:083
131449960,3cyclictest15839-21rm10:54:433
131449960,3cyclictest15311-21rm12:11:093
131449960,3cyclictest14865-21rm09:16:083
131449960,0cyclictest0-21swapper/311:21:523
131409966,0cyclictest0-21swapper/211:50:002
131409965,1cyclictest3311-21diskmemload11:09:432
131409964,1cyclictest0-21swapper/211:42:252
131409964,1cyclictest0-21swapper/210:00:542
131409963,2cyclictest8271-11brltty07:14:122
131409963,2cyclictest8202-21ssh10:50:052
131409963,2cyclictest30705-21expr08:55:192
131409963,2cyclictest29095-21sh12:20:062
131409963,2cyclictest2894-21open_inodes11:25:162
131409963,2cyclictest28805-21sh09:25:112
131409963,2cyclictest275-21systemd-journal10:31:042
131409963,2cyclictest25410-21ps10:40:172
131409963,2cyclictest22273-21missed_timers09:40:142
131409963,2cyclictest21607-21ntpq07:25:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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