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2026-04-23 - 19:37
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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 Thu Apr 23, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
99772315285,20sleep20-21swapper/207:07:022
100392298272,17sleep10-21swapper/107:07:501
99172268238,20sleep00-21swapper/007:06:150
101142261228,22sleep30-21swapper/307:08:483
48462620,0sleep10-21swapper/111:09:551
62692570,0sleep20-21swapper/208:10:132
154542570,0sleep10-21swapper/112:14:411
104462570,0sleep30-21swapper/311:31:553
67592560,0sleep00-21swapper/012:09:240
211862560,0sleep00-21swapper/012:37:100
94902530,0sleep10-21swapper/111:50:391
314642190,0sleep10-21swapper/109:28:341
255632190,0sleep20-21swapper/211:21:372
59782180,0sleep10-21swapper/110:30:261
52332180,0sleep00-21swapper/009:12:290
170772160,0sleep20-21swapper/210:18:342
277062150,0sleep00-21swapper/010:25:000
233572140,0sleep10-21swapper/112:38:511
316712130,0sleep00-21swapper/012:24:250
83232120,3sleep122-21ksoftirqd/110:51:401
6554290,0sleep30-21swapper/310:30:533
103229997,1cyclictest34-21ksoftirqd/311:40:013
103229990,2cyclictest275-21systemd-journal07:34:493
11885280,0sleep30-21swapper/309:35:463
103229987,1cyclictest34-21ksoftirqd/312:00:003
103229984,3cyclictest275-21systemd-journal12:12:243
103229982,3cyclictest658-21snmpd10:43:063
103189982,1cyclictest32153-1kworker/u9:011:45:122
10326270,0sleep10-21swapper/111:31:481
103229976,1cyclictest34-21ksoftirqd/307:15:013
103229973,3cyclictest658-21snmpd07:38:403
103229973,3cyclictest658-21snmpd07:38:403
103229973,3cyclictest275-21systemd-journal09:55:013
103229973,3cyclictest0-21swapper/311:16:113
103229973,1cyclictest0-21swapper/309:16:243
103189974,2cyclictest491-21systemd-logind11:29:322
103189973,3cyclictest0-21swapper/210:06:482
103189972,4cyclictest0-21swapper/209:30:192
103189972,3cyclictest275-21systemd-journal08:40:012
103189971,5cyclictest18652-21kworker/u8:110:30:022
103189970,4cyclictest23713-21munin-run08:50:002
103149973,3cyclictest504-21dbus-daemon09:45:551
103149973,3cyclictest29804-21cat10:45:161
103149973,3cyclictest275-21systemd-journal11:00:011
103149973,3cyclictest275-21systemd-journal10:13:051
103149973,3cyclictest27466-21cat10:05:141
103149972,1cyclictest185422diskmemload11:36:431
103149970,7cyclictest32632-21diskmemload10:02:431
103119973,3cyclictest504-21dbus-daemon10:50:010
103119973,3cyclictest21966-11brltty07:48:100
103119971,4cyclictest10012-21munin-run09:55:020
103119970,1cyclictest29141-21ssh09:26:450
103229966,0cyclictest0-21swapper/310:37:183
103229966,0cyclictest0-21swapper/309:30:173
103229963,2cyclictest663-21runrttasks10:21:343
103229963,2cyclictest658-21snmpd09:23:273
103229963,2cyclictest658-21snmpd08:57:053
103229963,2cyclictest3035-21sh09:10:473
103229963,2cyclictest275-21systemd-journal10:09:253
103229963,2cyclictest18793-21awk12:35:203
103229963,2cyclictest12583-21latency_hist07:15:013
103229963,2cyclictest11394-21ssh12:31:023
103229963,1cyclictest0-21swapper/310:59:093
103229962,3cyclictest658-21snmpd12:28:233
103229962,3cyclictest658-21snmpd11:50:263
103229962,3cyclictest658-21snmpd10:16:503
103229962,3cyclictest658-21snmpd10:10:053
103229962,3cyclictest658-21snmpd09:07:443
103229962,3cyclictest658-21snmpd08:52:513
103229962,3cyclictest658-21snmpd08:31:473
103229962,3cyclictest658-21snmpd08:10:223
103229962,3cyclictest29570-21fw_packets07:50:143
103229962,3cyclictest275-21systemd-journal11:00:513
103229962,3cyclictest26116-21packagekitd09:45:013
103229962,3cyclictest18981-21grep10:00:123
103229962,1cyclictest0-21swapper/311:45:213
103229962,1cyclictest0-21swapper/311:40:023
103229962,1cyclictest0-21swapper/311:08:493
103229962,1cyclictest0-21swapper/310:28:413
103229962,1cyclictest0-21swapper/309:40:123
103229962,1cyclictest0-21swapper/309:25:543
103229960,6cyclictest0-21swapper/312:19:393
103229960,6cyclictest0-21swapper/307:45:173
103229960,4cyclictest30486-21ssh11:25:113
103229960,2cyclictest5875-21ntp_states10:50:163
103189964,1cyclictest8004-21apt-get12:10:092
103189963,2cyclictest7298-21sshd11:10:262
103189963,2cyclictest658-21snmpd10:25:442
103189963,2cyclictest658-21snmpd09:25:002
103189963,2cyclictest658-21snmpd08:28:292
103189963,2cyclictest658-21snmpd08:22:052
103189963,2cyclictest504-21dbus-daemon12:32:042
103189963,2cyclictest4280-21ssh09:50:392
103189963,2cyclictest275-21systemd-journal10:45:012
103189963,2cyclictest16130-21proc_pri11:35:172
103189963,2cyclictest15015-21uname11:15:182
103189962,3cyclictest658-21snmpd11:57:162
103189962,3cyclictest658-21snmpd11:42:362
103189962,3cyclictest658-21snmpd11:00:022
103189962,3cyclictest658-21snmpd10:58:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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