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2026-06-06 - 13:41
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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 Sat Jun 06, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
116142272245,18sleep10-21swapper/119:09:011
116382271246,16sleep20-21swapper/219:09:182
114052265234,21sleep00-21swapper/019:06:230
115512261228,22sleep30-21swapper/319:08:153
94682660,0sleep00-21swapper/023:50:010
73742630,0sleep10-21swapper/122:50:121
67612580,0sleep10-21swapper/123:48:141
25592570,0sleep20-21swapper/223:25:412
195852560,0sleep10-21swapper/121:20:141
194262560,0sleep20-21swapper/222:56:542
61982550,0sleep00-21swapper/000:26:170
151942520,0sleep20-21swapper/200:31:502
158232510,0sleep10-21swapper/119:15:181
23352200,0sleep00-21swapper/000:24:410
291702180,0sleep20-21swapper/221:45:132
159972170,0sleep00-21swapper/021:17:470
258362160,0sleep00-21swapper/000:19:110
26412150,0sleep10-21swapper/122:08:041
248992150,0sleep10-21swapper/119:35:151
108242150,0sleep30-21swapper/323:11:083
79262130,0sleep10-21swapper/123:10:061
245772130,0sleep00-21swapper/022:01:260
292892100,0sleep20-21swapper/222:05:002
117999998,1cyclictest34-21ksoftirqd/300:20:013
117969992,4cyclictest3126-21apt20:00:002
25013280,0sleep00-21swapper/023:00:160
117969983,4cyclictest504-21dbus-daemon20:40:002
117969983,3cyclictest275-21systemd-journal21:10:002
117919983,4cyclictest0-21swapper/100:25:111
117919983,3cyclictest275-21systemd-journal23:22:471
117919980,7cyclictest576-21apt19:55:001
31250270,0sleep20-21swapper/221:26:472
14755270,0sleep10-21swapper/100:31:291
117999976,1cyclictest34-21ksoftirqd/323:50:003
117999975,1cyclictest34-21ksoftirqd/300:00:003
117999975,1cyclictest18129-21ssh23:55:103
117999975,1cyclictest13929-21runrttasks23:33:033
117999974,2cyclictest10127-21sshd22:51:063
117999973,3cyclictest658-21snmpd19:54:513
117999973,3cyclictest658-21snmpd00:05:103
117999973,3cyclictest275-21systemd-journal22:40:013
117999973,3cyclictest1-21systemd21:15:183
117969973,3cyclictest275-21systemd-journal20:10:322
117969973,3cyclictest275-21systemd-journal20:10:322
117919974,2cyclictest275-21systemd-journal21:10:001
117869976,1cyclictest12-21ksoftirqd/021:29:590
117869976,1cyclictest12-21ksoftirqd/019:20:010
117869973,3cyclictest658-21snmpd22:30:440
117869973,3cyclictest504-21dbus-daemon22:55:010
117869973,3cyclictest504-21dbus-daemon22:20:000
117869973,3cyclictest28537-21latency_hist21:45:010
117869973,3cyclictest275-21systemd-journal20:30:000
117869973,3cyclictest26606-21ntpq20:50:160
117869972,3cyclictest275-21systemd-journal20:12:010
117869972,3cyclictest275-21systemd-journal20:12:010
117869972,1cyclictest141rcu_preempt23:30:140
117869970,4cyclictest12043-21ls20:20:010
26446260,0sleep00-21swapper/022:22:110
117999966,0cyclictest0-21swapper/323:29:203
117999966,0cyclictest0-21swapper/322:16:413
117999966,0cyclictest0-21swapper/321:42:083
117999964,2cyclictest34-21ksoftirqd/323:45:013
117999964,2cyclictest34-21ksoftirqd/320:00:013
117999963,2cyclictest8724-21sh21:32:413
117999963,2cyclictest658-21snmpd22:32:353
117999963,2cyclictest658-21snmpd21:45:253
117999963,2cyclictest504-21dbus-daemon20:30:223
117999963,2cyclictest4743-21ssh21:50:073
117999963,2cyclictest25811-21chrt19:37:223
117999963,2cyclictest2358-21ntpq23:45:163
117999963,2cyclictest21921-21fschecks_time22:00:143
117999963,2cyclictest1901-21sh22:07:303
117999963,2cyclictest0-21swapper/322:25:253
117999963,1cyclictest0-21swapper/322:41:163
117999962,3cyclictest658-21snmpd23:36:313
117999962,3cyclictest658-21snmpd23:01:083
117999962,3cyclictest658-21snmpd22:58:203
117999962,3cyclictest658-21snmpd22:22:473
117999962,3cyclictest658-21snmpd21:35:093
117999962,3cyclictest658-21snmpd20:59:463
117999962,3cyclictest658-21snmpd20:45:353
117999962,3cyclictest658-21snmpd20:16:333
117999962,3cyclictest658-21snmpd19:40:093
117999962,3cyclictest658-21snmpd19:20:383
117999962,3cyclictest29872-21awk19:45:183
117999962,3cyclictest275-21systemd-journal22:11:003
117999962,3cyclictest2672-21cat21:10:103
117999962,3cyclictest24257-21seq23:20:023
117999962,3cyclictest21209-21expr00:35:193
117999962,3cyclictest16966-21hwlatdetect23:15:153
117999962,3cyclictest13394-21expr21:55:123
117999962,3cyclictest11835-21expr00:30:123
117999962,2cyclictest674-21lldpd00:11:273
117999962,1cyclictest0-21swapper/323:05:143
117999962,1cyclictest0-21swapper/321:27:093
117999960,5cyclictest3958-21grep20:00:153
117999960,2cyclictest31446-21/usr/sbin/munin22:45:213
117999960,2cyclictest30125-21/usr/sbin/munin21:00:143
117999960,0cyclictest0-21swapper/319:10:133
117969966,0cyclictest0-21swapper/223:13:042
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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