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2026-01-10 - 03:10
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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 Jan 10, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
143362312287,16sleep20-21swapper/219:05:302
143742269238,21sleep00-21swapper/019:05:440
145062264232,22sleep10-21swapper/119:07:261
145962258231,18sleep30-21swapper/319:08:383
202012610,0sleep20-21swapper/221:38:422
210562600,0sleep00-21swapper/000:35:160
257722570,0sleep20-21swapper/221:41:342
14022570,1sleep30-21swapper/319:50:123
110522570,0sleep20-21swapper/223:50:132
12752550,0sleep00-21swapper/000:04:080
203572530,0sleep00-21swapper/022:56:450
236202520,0sleep20-21swapper/223:57:462
130922180,0sleep0131rcuc/000:30:190
274692170,0sleep10-21swapper/123:00:551
304292160,0sleep20-21swapper/223:42:032
265322160,0sleep30-21swapper/321:22:543
123772150,0sleep20-21swapper/221:34:012
307842140,0sleep30-21swapper/323:42:203
294432130,1sleep3331rcuc/300:20:213
290832120,0sleep30-21swapper/322:03:423
24985280,0sleep20-21swapper/221:21:412
148439986,1cyclictest14711-21ssh22:53:483
148359987,1cyclictest28-21ksoftirqd/223:05:012
148359982,3cyclictest8612-21sleep23:10:012
148359980,7cyclictest4031-21ssh23:45:202
148359980,1cyclictest141rcu_preempt21:45:102
148279986,1cyclictest504-21dbus-daemon21:05:000
9632270,0sleep20-21swapper/200:28:442
31146270,0sleep00-21swapper/022:05:070
30641270,1sleep00-21swapper/020:55:110
27680270,0sleep30-21swapper/323:01:043
148439974,2cyclictest504-21dbus-daemon19:33:503
148439974,2cyclictest504-21dbus-daemon00:35:143
148439973,3cyclictest658-21snmpd20:13:533
148439973,3cyclictest504-21dbus-daemon22:00:013
148439973,1cyclictest0-21swapper/322:38:053
148439973,1cyclictest0-21swapper/322:15:113
148439970,2cyclictest1909-21sshd21:00:593
148359976,1cyclictest28-21ksoftirqd/219:15:002
148359975,2cyclictest28-21ksoftirqd/200:05:012
148359973,3cyclictest275-21systemd-journal23:14:092
148359973,3cyclictest275-21systemd-journal20:27:572
148359972,1cyclictest30198-21idleruntime-cro20:55:002
148309973,3cyclictest658-21snmpd22:42:581
148309973,3cyclictest31615-21expr22:05:121
148309973,3cyclictest275-21systemd-journal22:51:281
148309973,3cyclictest19022-21systemctl19:15:181
148309973,3cyclictest15690-21sed21:35:181
148309970,6cyclictest51050irq/138-enp4s0-23:50:111
148279975,1cyclictest1325-21ssh23:05:130
148279973,3cyclictest658-21snmpd20:11:560
148279973,3cyclictest658-21snmpd20:06:470
148279973,3cyclictest4472-21diskmemload21:30:010
148279972,3cyclictest275-21systemd-journal22:17:460
148279970,4cyclictest10692-21turbostat00:10:000
148279970,3cyclictest4957-21rm23:46:030
148439966,0cyclictest0-21swapper/323:45:463
148439966,0cyclictest0-21swapper/322:56:273
148439966,0cyclictest0-21swapper/322:33:223
148439966,0cyclictest0-21swapper/322:26:383
148439963,2cyclictest9832-21ssh21:32:013
148439963,2cyclictest9385-21rm21:51:123
148439963,2cyclictest9318-21ssh00:28:313
148439963,2cyclictest9278-21tr23:10:133
148439963,2cyclictest8284-21ps22:10:173
148439963,2cyclictest8284-21ps22:10:163
148439963,2cyclictest658-21snmpd19:57:593
148439963,2cyclictest6474-21ssh00:06:463
148439963,2cyclictest504-21dbus-daemon20:05:003
148439963,2cyclictest30013-21sh00:01:163
148439963,2cyclictest29999-21chrt20:52:503
148439963,2cyclictest275-21systemd-journal20:46:263
148439963,2cyclictest24298-21ssh00:17:483
148439963,2cyclictest23291-11brltty22:45:173
148439963,2cyclictest22829-21ssh23:57:093
148439963,2cyclictest22807-21diskstats21:40:113
148439963,2cyclictest11430-21expr00:10:123
148439962,3cyclictest658-21snmpd23:38:263
148439962,3cyclictest658-21snmpd21:26:263
148439962,3cyclictest658-21snmpd20:33:223
148439962,3cyclictest658-21snmpd20:26:583
148439962,3cyclictest658-21snmpd19:41:113
148439962,3cyclictest275-21systemd-journal21:46:073
148439962,3cyclictest25644-21packagekitd23:20:043
148439962,3cyclictest24946-21tr22:20:183
148439962,3cyclictest23986-21seq19:26:003
148439962,1cyclictest0-21swapper/323:53:023
148439962,1cyclictest0-21swapper/323:26:343
148439962,1cyclictest0-21swapper/323:15:153
148439962,1cyclictest0-21swapper/322:41:073
148439962,1cyclictest0-21swapper/300:30:013
148439961,3cyclictest658-21snmpd22:05:033
148439960,6cyclictest0-21swapper/319:45:203
148439960,6cyclictest0-21swapper/319:18:583
148439960,5cyclictest13156-21ssh21:15:113
148439960,2cyclictest16225-21sensors_temp19:10:173
148439960,1cyclictest0-21swapper/323:06:263
148439960,0cyclictest0-21swapper/321:38:293
148439960,0cyclictest0-21swapper/319:35:133
148359966,0cyclictest0-21swapper/223:15:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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