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2026-05-24 - 05:56
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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 Sun May 24, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
128982324294,20sleep20-21swapper/219:09:022
128142265238,17sleep10-21swapper/119:07:561
128282262231,21sleep30-21swapper/319:08:063
127872258226,21sleep00-21swapper/019:07:360
42032620,1sleep0131rcuc/020:00:010
24842610,0sleep10-21swapper/121:28:181
215852610,0sleep10-21swapper/121:59:311
187792570,0sleep30-21swapper/320:30:153
122652570,0sleep00-21swapper/021:34:210
315072560,0sleep20-21swapper/222:44:202
120782550,0sleep20-21swapper/222:32:152
120782550,0sleep20-21swapper/222:32:142
220772540,0sleep10-21swapper/123:35:411
77522430,0sleep10-21swapper/123:27:311
166532240,0sleep20-21swapper/221:36:202
314292210,0sleep10-21swapper/119:45:201
232202200,0sleep20-21swapper/222:58:372
195822190,0sleep10-21swapper/100:13:481
98732170,0sleep00-21swapper/023:48:210
261062150,0sleep20-21swapper/222:01:352
178712140,0sleep20-21swapper/223:33:492
150062140,0sleep00-21swapper/022:34:300
150062140,0sleep00-21swapper/022:34:290
318212130,0sleep30-21swapper/323:22:463
241762130,0sleep30-21swapper/300:15:593
162652130,0sleep20-21swapper/222:15:182
11342120,0sleep00-21swapper/023:05:010
94502110,0sleep00-21swapper/020:10:130
40352100,2sleep13952-21ssh21:10:131
325762100,1sleep30-21swapper/322:45:023
130819994,3cyclictest275-21systemd-journal21:45:001
5170280,0sleep20-21swapper/222:09:012
130859984,3cyclictest658-21snmpd00:32:522
130819986,1cyclictest24204-21ssh23:18:201
130819984,3cyclictest275-21systemd-journal22:54:061
130799984,3cyclictest275-21systemd-journal22:02:490
130799983,3cyclictest16720-21munin-run22:55:010
867270,0chrt0-21swapper/000:02:100
130899974,2cyclictest26943-11brltty00:32:283
130899974,2cyclictest12839-21cron00:10:013
130899973,3cyclictest658-21snmpd00:08:263
130899973,3cyclictest275-21systemd-journal20:23:263
130899973,3cyclictest26975-21apt-get20:50:113
130899973,1cyclictest0-21swapper/321:33:243
130899971,2cyclictest275-21systemd-journal23:19:063
130899971,1cyclictest331rcuc/319:20:113
130859973,3cyclictest658-21snmpd21:18:172
130859973,3cyclictest658-21snmpd00:22:072
130859973,3cyclictest22722-21cat21:40:142
130859970,4cyclictest32076-21dump-pmu-power19:50:002
130819973,3cyclictest658-21snmpd20:16:151
130819973,3cyclictest275-21systemd-journal00:23:071
130819973,3cyclictest26716-21idleruntime-cro20:50:001
130819972,4cyclictest14111-21cut21:35:131
130819971,1cyclictest141rcu_preempt19:40:001
130799973,3cyclictest658-21snmpd23:24:200
130799973,3cyclictest658-21snmpd19:42:300
130799973,3cyclictest28681-40mandb00:00:000
130799970,6cyclictest0-21swapper/000:30:120
9308260,0sleep20-21swapper/221:32:082
130899966,0cyclictest0-21swapper/323:48:193
130899966,0cyclictest0-21swapper/322:21:373
130899966,0cyclictest0-21swapper/321:46:153
130899966,0cyclictest0-21swapper/321:15:053
130899965,1cyclictest34-21ksoftirqd/320:45:013
130899964,2cyclictest34-21ksoftirqd/319:15:003
130899963,2cyclictest658-21snmpd23:41:033
130899963,2cyclictest658-21snmpd23:37:183
130899963,2cyclictest658-21snmpd22:35:323
130899963,2cyclictest658-21snmpd22:16:223
130899963,2cyclictest658-21snmpd21:36:113
130899963,2cyclictest275-21systemd-journal21:24:233
130899963,2cyclictest25712-21ntp_states20:45:173
130899963,2cyclictest23719-21gzip00:35:193
130899963,2cyclictest23240-21ssh23:55:523
130899963,2cyclictest19263-21chrt23:54:123
130899963,2cyclictest16526-21ssh23:32:483
130899963,2cyclictest12431-21ssh22:32:323
130899963,2cyclictest12431-21ssh22:32:323
130899962,3cyclictest658-21snmpd22:53:383
130899962,3cyclictest658-21snmpd22:08:303
130899962,3cyclictest658-21snmpd21:55:063
130899962,3cyclictest658-21snmpd20:11:173
130899962,3cyclictest658-21snmpd20:07:233
130899962,3cyclictest658-21snmpd19:58:233
130899962,3cyclictest658-21snmpd19:54:023
130899962,3cyclictest658-21snmpd19:38:243
130899962,3cyclictest658-21snmpd19:34:003
130899962,3cyclictest658-21snmpd19:28:473
130899962,3cyclictest504-21dbus-daemon20:04:343
130899962,3cyclictest30386-21expr19:45:143
130899962,3cyclictest29799-21grep21:25:153
130899962,3cyclictest18513-21grep22:55:193
130899962,1cyclictest0-21swapper/322:47:433
130899962,1cyclictest0-21swapper/300:21:093
130899962,1cyclictest0-21swapper/300:00:013
130899960,6cyclictest0-21swapper/323:05:233
130899960,6cyclictest0-21swapper/321:41:043
130899960,6cyclictest0-21swapper/320:17:283
130899960,3cyclictest5792-21/usr/sbin/munin00:25:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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