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2026-01-09 - 23:04
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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 Fri Jan 09, 2026 12:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
154832281252,19sleep20-21swapper/207:08:402
154032270238,21sleep10-21swapper/107:07:421
154232266234,21sleep00-21swapper/007:07:580
155772263231,22sleep30-21swapper/307:09:423
66372670,0sleep00-21swapper/011:02:590
323892630,0sleep20-21swapper/209:25:132
223972630,0sleep20-21swapper/212:28:012
127322630,1sleep112730-21ssh11:25:181
301832600,0sleep00-21swapper/009:23:520
302462580,0sleep20-21swapper/210:20:112
128192580,0sleep30-21swapper/311:06:133
110622560,0sleep20-21swapper/208:05:172
201262550,0sleep30-21swapper/307:15:173
184892550,0sleep20-21swapper/209:54:462
122912550,0sleep30-21swapper/310:28:253
297182530,0sleep20-21swapper/211:54:292
21912530,0sleep30-21swapper/309:25:463
14992180,0chrt0-21swapper/112:35:041
227052170,0sleep30-21swapper/311:30:443
118732170,0sleep10-21swapper/111:05:311
201642140,0sleep10-21swapper/110:14:261
188282140,0sleep10-21swapper/109:35:221
178792140,0sleep20-21swapper/212:05:462
296462130,0sleep10-21swapper/110:38:411
239982120,0sleep30-21swapper/308:35:133
73872100,0sleep20-21swapper/211:22:142
1572599100,9cyclictest27282-21munin-run08:45:011
157339996,2cyclictest8266-21ssh09:10:202
30240280,0sleep10-21swapper/111:35:141
26876280,0sleep20-21swapper/211:15:092
157379984,3cyclictest504-21dbus-daemon12:22:413
157379983,3cyclictest275-21systemd-journal11:05:013
157379983,3cyclictest275-21systemd-journal09:55:023
157379980,7cyclictest6498-21sh11:21:353
157379980,7cyclictest0-21swapper/312:00:183
157259988,0cyclictest6020-21diskmemload12:05:111
157259987,1cyclictest22-21ksoftirqd/111:20:011
157259984,3cyclictest275-21systemd-journal09:05:001
157209983,3cyclictest275-21systemd-journal11:14:160
23610270,1sleep123602-21perf07:25:011
157379973,1cyclictest0-21swapper/311:52:093
157339975,1cyclictest28-21ksoftirqd/207:30:012
157339974,2cyclictest17831-21runrttasks07:10:512
157339973,3cyclictest504-21dbus-daemon07:35:182
157339972,3cyclictest9446-21idleruntime-cro08:05:002
157339972,3cyclictest275-21systemd-journal07:40:062
157259973,3cyclictest658-21snmpd08:06:181
157259973,3cyclictest2060-21cat11:00:131
157259972,1cyclictest1578-21awk09:00:001
157259970,4cyclictest30429-21basename11:55:001
157209976,1cyclictest12-21ksoftirqd/009:40:000
157209973,3cyclictest275-21systemd-journal11:29:140
157209973,3cyclictest275-21systemd-journal07:55:570
157379964,1cyclictest0-21swapper/310:10:023
157379963,2cyclictest658-21snmpd10:40:113
157379963,2cyclictest658-21snmpd08:50:063
157379963,2cyclictest4271-21ssh12:35:583
157379963,2cyclictest31637-21rm11:35:493
157379963,2cyclictest30648-21sshd07:39:573
157379963,2cyclictest29228-21sh10:38:213
157379963,2cyclictest22775-21ssh09:38:173
157379963,2cyclictest1471-21ssh11:19:123
157379963,1cyclictest0-21swapper/312:10:063
157379962,3cyclictest658-21snmpd12:06:163
157379962,3cyclictest658-21snmpd10:50:063
157379962,3cyclictest658-21snmpd10:18:583
157379962,3cyclictest658-21snmpd09:45:313
157379962,3cyclictest658-21snmpd09:40:533
157379962,3cyclictest658-21snmpd09:30:343
157379962,3cyclictest658-21snmpd09:20:043
157379962,3cyclictest658-21snmpd08:42:453
157379962,3cyclictest658-21snmpd08:26:123
157379962,3cyclictest658-21snmpd08:12:113
157379962,3cyclictest658-21snmpd08:01:023
157379962,3cyclictest658-21snmpd07:56:043
157379962,3cyclictest658-21snmpd07:47:223
157379962,3cyclictest30477-21sshd10:00:573
157379962,3cyclictest2758-21ntpq09:00:153
157379962,3cyclictest275-21systemd-journal11:55:553
157379962,3cyclictest22866-21cut08:35:013
157379962,3cyclictest15975-21ntpq10:30:163
157379962,3cyclictest1-21systemd07:15:003
157379962,3cyclictest0-21swapper/311:26:053
157379962,1cyclictest0-21swapper/310:47:593
157379962,1cyclictest0-21swapper/309:15:463
157379961,4cyclictest658-21snmpd07:27:023
157379960,6cyclictest0-21swapper/311:42:023
157379960,6cyclictest0-21swapper/310:22:243
157379960,6cyclictest0-21swapper/310:05:263
157379960,6cyclictest0-21swapper/309:10:073
157379960,5cyclictest20197-21users11:10:213
157379960,5cyclictest15087-21ntp_states08:15:163
157379960,2cyclictest9662-21/usr/sbin/munin08:05:173
157379960,0cyclictest0-21swapper/312:16:253
157339966,0cyclictest0-21swapper/210:19:532
157339963,2cyclictest9003-21sh12:00:312
157339963,2cyclictest8120-21ssh12:38:512
157339963,2cyclictest658-21snmpd10:34:292
157339963,2cyclictest658-21snmpd08:13:572
157339963,2cyclictest6522-21basename12:00:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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