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2026-07-27 - 11:29
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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 Mon Jul 27, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
99152287263,16sleep10-21swapper/119:06:131
99122286217,22sleep30-21swapper/319:06:113
100052272216,17sleep20-21swapper/219:07:222
99412265236,19sleep00-21swapper/019:06:330
308322610,0sleep30-21swapper/323:41:453
129872590,0sleep20-21swapper/222:53:032
226192580,0sleep00-21swapper/021:22:390
128992530,0sleep00-21swapper/000:29:100
10882200,0sleep10-21swapper/122:07:281
279012190,1sleep127897-21apt-config21:00:011
114702180,0sleep20-21swapper/200:09:102
197922170,0sleep00-21swapper/000:33:020
15972170,0sleep00-21swapper/021:10:160
299472130,0sleep00-21swapper/000:39:230
274782120,0sleep00-21swapper/000:18:380
35742110,0sleep30-21swapper/323:45:133
243722100,0sleep10-21swapper/123:57:201
1032099108,2cyclictest28-21ksoftirqd/221:40:002
32567280,0sleep20-21swapper/223:43:042
30521280,0sleep00-21swapper/000:00:350
103249984,3cyclictest275-21systemd-journal19:55:003
103209980,5cyclictest27948-21idleruntime-cro00:00:002
103159983,3cyclictest275-21systemd-journal22:34:571
103129985,2cyclictest16182-21cpuspeed22:55:120
103129980,7cyclictest15886-21ssh21:57:070
1937270,0sleep00-21swapper/000:22:140
11623270,0sleep30-21swapper/323:30:193
103249976,1cyclictest34-21ksoftirqd/321:29:593
103249974,2cyclictest275-21systemd-journal19:10:283
103249971,2cyclictest26869-21ntp_states23:20:173
103209974,2cyclictest3637-21diskstats23:45:142
103209973,3cyclictest658-21snmpd21:29:372
103209973,3cyclictest658-21snmpd20:56:312
103209973,3cyclictest504-21dbus-daemon23:10:002
103209973,3cyclictest275-21systemd-journal22:59:282
103209973,3cyclictest275-21systemd-journal21:57:292
103209973,3cyclictest23479-21smart_sda19:35:202
103209973,1cyclictest0-21swapper/223:14:172
103209973,1cyclictest0-21swapper/223:01:352
103209973,1cyclictest0-21swapper/222:20:542
103159976,1cyclictest22-21ksoftirqd/123:00:011
103159974,2cyclictest20410-21sshd00:33:311
103159973,3cyclictest29981-21sshd21:00:541
103159973,3cyclictest0-21swapper/119:21:221
103159973,2cyclictest275-21systemd-journal22:01:281
103159973,2cyclictest275-21systemd-journal19:31:111
103159972,1cyclictest0-21swapper/121:10:121
103159971,3cyclictest28710-21perf19:50:001
103159970,4cyclictest29670-21apt22:25:011
103129975,2cyclictest12-21ksoftirqd/019:50:010
103129975,2cyclictest12-21ksoftirqd/019:35:000
103129973,3cyclictest658-21snmpd19:43:140
103129970,5cyclictest28016-40gzip00:00:000
103129970,4cyclictest3336-21awk20:05:000
10168270,0sleep00-21swapper/022:13:000
14716260,0sleep20-21swapper/200:10:222
103249963,2cyclictest674-21lldpd22:35:443
103249963,2cyclictest658-21snmpd21:00:153
103249963,2cyclictest658-21snmpd20:52:153
103249963,2cyclictest658-21snmpd00:05:063
103249963,2cyclictest6219-21ssh23:27:183
103249963,2cyclictest5972-21tr20:10:143
103249963,2cyclictest31580-21sh00:01:253
103249963,2cyclictest30095-21ssh00:20:103
103249963,2cyclictest21809-21seq23:36:203
103249963,2cyclictest2021-11brltty00:26:303
103249963,2cyclictest17323-21sh23:15:093
103249963,2cyclictest16270-21ssh22:16:163
103249963,1cyclictest0-21swapper/321:10:243
103249962,3cyclictest8900-21tr22:50:183
103249962,3cyclictest658-21snmpd23:55:093
103249962,3cyclictest658-21snmpd23:07:253
103249962,3cyclictest658-21snmpd22:48:163
103249962,3cyclictest658-21snmpd22:26:003
103249962,3cyclictest658-21snmpd22:00:313
103249962,3cyclictest658-21snmpd21:51:293
103249962,3cyclictest658-21snmpd21:15:523
103249962,3cyclictest658-21snmpd21:06:373
103249962,3cyclictest658-21snmpd20:56:573
103249962,3cyclictest658-21snmpd20:31:183
103249962,3cyclictest658-21snmpd19:49:103
103249962,3cyclictest658-21snmpd19:32:563
103249962,3cyclictest658-21snmpd00:19:093
103249962,3cyclictest6502-21expr22:30:143
103249962,3cyclictest504-21dbus-daemon19:30:013
103249962,3cyclictest34-21ksoftirqd/320:00:423
103249962,3cyclictest28174-21cat21:45:163
103249962,3cyclictest275-21systemd-journal22:56:223
103249962,3cyclictest275-21systemd-journal19:56:173
103249962,3cyclictest24039-21memory22:40:173
103249962,3cyclictest2326-21cat21:30:113
103249962,3cyclictest19597-21gltestperf21:40:143
103249962,3cyclictest13860-21cat00:10:173
103249962,3cyclictest11959-21cat23:50:133
103249962,3cyclictest0-21swapper/321:39:593
103249962,2cyclictest304-21systemd-udevd22:24:153
103249960,6cyclictest0-21swapper/321:57:293
103249960,4cyclictest275-21systemd-journal22:06:073
103249960,2cyclictest275-21systemd-journal23:11:213
103249960,0cyclictest0-21swapper/300:38:393
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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