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2026-04-07 - 20:01
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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 Tue Apr 07, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139552274243,20sleep10-21swapper/107:08:111
139132273240,19sleep20-21swapper/207:07:392
137402267236,21sleep00-21swapper/007:05:250
138212260228,21sleep30-21swapper/307:06:283
124672620,0sleep00-21swapper/011:31:410
69862590,0sleep30-21swapper/310:49:523
63652580,0sleep20-21swapper/212:07:352
83902570,0sleep00-21swapper/012:09:080
130022560,0sleep30-21swapper/309:54:253
54172550,0sleep10-21swapper/111:47:121
275072540,1sleep30-21swapper/312:20:173
132822540,0sleep10-21swapper/112:31:001
201032530,0sleep20-21swapper/212:15:282
326942520,0sleep00-21swapper/009:45:580
131082350,0sleep20-21swapper/209:34:582
305192200,0sleep10-21swapper/111:23:161
321672190,0sleep00-21swapper/011:05:030
135012190,0sleep20-21swapper/211:52:052
92232180,0sleep20-21swapper/210:11:072
294422170,0sleep30-21swapper/310:43:273
266112160,0sleep30-21swapper/307:35:123
281522140,0sleep20-21swapper/210:22:482
204932140,0sleep20-21swapper/210:57:362
15992140,0sleep10-21swapper/112:24:561
178272130,0sleep00-21swapper/009:56:480
1422299108,1cyclictest12-21ksoftirqd/008:05:010
142329995,3cyclictest6732-21ssh11:28:393
32405280,0sleep00-21swapper/011:24:490
142329985,2cyclictest658-21snmpd10:24:413
142279984,3cyclictest275-21systemd-journal12:34:112
142229984,3cyclictest275-21systemd-journal11:44:040
142229983,3cyclictest275-21systemd-journal07:47:050
15891270,0sleep30-21swapper/312:13:373
142329974,2cyclictest20551-21ssh09:39:213
142329973,1cyclictest0-21swapper/312:30:093
142279973,3cyclictest8969-21cat11:10:142
142279973,3cyclictest275-21systemd-journal12:12:422
142279972,3cyclictest560-21gdbus10:55:002
142279970,4cyclictest5541-21awk09:50:012
142249974,2cyclictest504-21dbus-daemon09:34:481
142249973,3cyclictest658-21snmpd10:02:591
142249973,2cyclictest275-21systemd-journal12:27:481
142249970,1cyclictest23927-21diskmemload11:19:341
142229976,1cyclictest12-21ksoftirqd/010:25:010
142229976,1cyclictest12-21ksoftirqd/008:10:010
142229976,1cyclictest12-21ksoftirqd/008:00:010
142229976,1cyclictest12-21ksoftirqd/007:15:010
142229975,1cyclictest4048-21ssh12:25:260
142229974,2cyclictest658-21snmpd09:52:160
142229973,3cyclictest275-21systemd-journal08:21:380
142229973,1cyclictest0-21swapper/011:17:020
142229972,2cyclictest2847-21awk07:55:010
142229971,2cyclictest12-21ksoftirqd/008:43:430
2202260,0sleep10-21swapper/107:50:191
142329966,0cyclictest0-21swapper/309:56:513
142329963,2cyclictest8819-21ssh12:09:293
142329963,2cyclictest8181-21ssh11:10:103
142329963,2cyclictest7312-21ssh09:10:513
142329963,2cyclictest674-21lldpd11:52:473
142329963,2cyclictest504-21dbus-daemon11:46:263
142329963,2cyclictest4620-21sh12:25:533
142329963,2cyclictest31123-21ssh11:43:223
142329963,2cyclictest26624-21ssh11:00:553
142329963,2cyclictest23795-21ssh09:40:283
142329963,2cyclictest22384-21ssh11:57:373
142329963,2cyclictest21415-21ssh12:35:553
142329962,3cyclictest658-21snmpd11:30:333
142329962,3cyclictest658-21snmpd11:24:093
142329962,3cyclictest658-21snmpd11:15:423
142329962,3cyclictest658-21snmpd10:50:283
142329962,3cyclictest658-21snmpd10:15:473
142329962,3cyclictest658-21snmpd08:56:443
142329962,3cyclictest658-21snmpd08:26:433
142329962,3cyclictest658-21snmpd08:07:183
142329962,3cyclictest658-21snmpd07:58:483
142329962,3cyclictest658-21snmpd07:47:543
142329962,3cyclictest658-21snmpd07:24:393
142329962,3cyclictest658-21snmpd07:17:093
142329962,3cyclictest658-21snmpd07:12:303
142329962,3cyclictest29124-21ntpq08:50:173
142329962,3cyclictest26674-21cat12:00:153
142329962,3cyclictest23874-21switchtime10:00:193
142329962,3cyclictest18305-21cat12:15:133
142329962,3cyclictest12375-21wc08:15:013
142329962,1cyclictest0-21swapper/311:06:203
142329962,1cyclictest0-21swapper/310:38:103
142329962,1cyclictest0-21swapper/310:30:273
142329962,1cyclictest0-21swapper/310:25:443
142329960,6cyclictest0-21swapper/310:11:553
142329960,6cyclictest0-21swapper/309:15:363
142329960,0cyclictest0-21swapper/309:24:523
142279963,2cyclictest658-21snmpd09:12:382
142279963,2cyclictest504-21dbus-daemon11:15:012
142279963,2cyclictest275-21systemd-journal11:29:042
142279963,2cyclictest275-21systemd-journal07:53:302
142279963,2cyclictest26341-21sshd11:00:422
142279963,2cyclictest24678-21diskstats07:30:142
142279963,2cyclictest24142-21diskstats08:40:122
142279963,2cyclictest20577-21rm09:39:232
142279963,2cyclictest18193-21grep11:55:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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