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2026-06-23 - 09:06
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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 Tue Jun 23, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
48922313288,16sleep20-21swapper/219:08:222
48582276214,51sleep00-21swapper/019:07:560
47052266235,21sleep10-21swapper/119:06:121
49512260229,20sleep30-21swapper/319:09:083
106232620,0sleep20-21swapper/222:16:502
199382610,0sleep10-21swapper/123:40:171
164722610,1sleep10-21swapper/100:17:251
112102610,0sleep30-21swapper/300:14:433
4812590,0sleep20-21swapper/223:29:012
40872550,0sleep10-21swapper/100:10:121
131432550,0sleep30-21swapper/319:25:123
323292180,0sleep10-21swapper/121:12:251
196072180,0sleep10-21swapper/100:00:081
42752160,0sleep20-21swapper/200:10:132
187442160,0sleep00-21swapper/021:24:050
277532150,0sleep30-21swapper/319:55:193
20362150,0sleep20-21swapper/200:28:312
20362150,0sleep20-21swapper/200:28:312
92302140,0sleep20-21swapper/221:37:282
51399997,1cyclictest28-21ksoftirqd/222:50:012
51449983,3cyclictest275-21systemd-journal21:05:003
51399987,1cyclictest28-21ksoftirqd/200:00:002
51359986,2cyclictest8859-21kworker/1:222:51:311
51339987,1cyclictest12-21ksoftirqd/021:35:000
26931280,0sleep10-21swapper/122:07:111
22704280,0sleep00-21swapper/022:24:440
13448280,0sleep10-21swapper/119:25:141
51449976,1cyclictest0-21swapper/300:30:133
51449974,2cyclictest50850irq/136-enp4s0-22:50:113
51449974,2cyclictest275-21systemd-journal19:16:383
51449973,3cyclictest658-21snmpd21:31:123
51449973,3cyclictest658-21snmpd20:34:023
51449973,3cyclictest658-21snmpd20:34:023
51449973,3cyclictest658-21snmpd00:25:323
51449973,3cyclictest658-21snmpd00:25:313
51449973,1cyclictest0-21swapper/323:33:083
51449973,1cyclictest0-21swapper/300:07:443
51449972,4cyclictest0-21swapper/323:40:123
51399975,1cyclictest28-21ksoftirqd/223:35:002
51399973,3cyclictest658-21snmpd22:30:162
51399973,3cyclictest658-21snmpd22:30:162
51399973,3cyclictest3990-21cat23:50:152
51399973,3cyclictest22601-21sshd20:56:532
51399973,1cyclictest0-21swapper/200:37:282
51399971,4cyclictest3346-21munin-run00:10:012
51399971,4cyclictest2832-21basename20:15:012
51399970,6cyclictest19943-21smartctl19:40:142
51359973,3cyclictest275-21systemd-journal21:38:211
51359973,3cyclictest15174-21ntpq22:00:181
51359973,2cyclictest275-21systemd-journal20:55:011
51359972,3cyclictest674-21lldpd00:33:211
51359970,1cyclictest27364-21diskmemload21:52:491
51339975,2cyclictest658-21snmpd00:38:490
51339973,3cyclictest658-21snmpd20:13:000
51339973,3cyclictest504-21dbus-daemon21:50:210
51339973,3cyclictest275-21systemd-journal22:07:090
51339973,3cyclictest275-21systemd-journal00:33:220
51339973,3cyclictest1992-11brltty23:59:580
51339973,3cyclictest0-21swapper/000:22:500
51339972,3cyclictest275-21systemd-journal21:55:550
51339970,1cyclictest141rcu_preempt21:05:130
24981270,1sleep30-21swapper/322:25:153
17950270,0sleep30-21swapper/321:23:293
51449966,0cyclictest0-21swapper/323:56:463
51449966,0cyclictest0-21swapper/323:21:333
51449966,0cyclictest0-21swapper/323:17:193
51449963,2cyclictest26964-21taskset21:48:113
51449963,2cyclictest24419-21ssh23:04:193
51449963,2cyclictest22593-21ssh00:20:453
51449963,2cyclictest16419-21ssh21:41:343
51449963,2cyclictest13424-21cat00:35:153
51449963,2cyclictest1-21systemd00:15:203
51449963,2cyclictest10985-21ssh22:36:173
51449963,1cyclictest0-21swapper/322:02:173
51449962,3cyclictest658-21snmpd23:36:213
51449962,3cyclictest658-21snmpd23:25:543
51449962,3cyclictest658-21snmpd22:57:233
51449962,3cyclictest658-21snmpd22:40:073
51449962,3cyclictest658-21snmpd22:15:313
51449962,3cyclictest658-21snmpd22:10:163
51449962,3cyclictest658-21snmpd21:28:453
51449962,3cyclictest658-21snmpd21:11:043
51449962,3cyclictest658-21snmpd20:43:043
51449962,3cyclictest658-21snmpd20:29:413
51449962,3cyclictest658-21snmpd19:20:263
51449962,3cyclictest658-21snmpd19:11:053
51449962,3cyclictest658-21snmpd00:01:153
51449962,3cyclictest5895-21cat21:55:113
51449962,3cyclictest4877-21awk21:15:173
51449962,3cyclictest4222-21awk23:50:173
51449962,3cyclictest4090-21cut20:15:163
51449962,3cyclictest2813-21cron20:15:003
51449962,3cyclictest275-21systemd-journal20:54:573
51449962,3cyclictest15848-21awk19:30:183
51449962,1cyclictest0-21swapper/323:10:303
51449962,1cyclictest0-21swapper/322:30:143
51449962,1cyclictest0-21swapper/322:30:143
51449962,1cyclictest0-21swapper/322:20:563
51449962,1cyclictest0-21swapper/321:36:113
51449960,6cyclictest0-21swapper/320:02:273
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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