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2026-04-29 - 19:36
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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 Wed Apr 29, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
168052307284,15sleep10-21swapper/107:07:391
169912280254,17sleep20-21swapper/207:09:572
169672267237,20sleep00-21swapper/007:09:400
168872258226,22sleep30-21swapper/307:08:413
314522630,0sleep20-21swapper/211:01:452
282742600,0sleep20-21swapper/210:20:212
259682600,0sleep10-21swapper/109:40:141
111042600,0sleep30-21swapper/310:30:153
104072590,1sleep30-21swapper/311:48:113
194822580,0sleep00-21swapper/008:25:130
121222560,0sleep20-21swapper/211:49:292
218812540,0sleep10-21swapper/110:36:201
204022490,0sleep10-21swapper/110:55:151
167742210,0sleep00-21swapper/012:11:180
280392190,0sleep00-21swapper/010:00:450
231012180,0sleep00-21swapper/010:17:420
52502170,0sleep10-21swapper/112:24:451
169112160,0sleep10-21swapper/111:51:491
95182150,0sleep10-21swapper/109:30:171
4082150,0sleep10-21swapper/109:25:121
52722140,0sleep20-21swapper/212:24:462
292932130,0sleep10-21swapper/111:40:111
35192120,0sleep10-21swapper/107:50:121
143612100,5sleep10-21swapper/110:12:151
17952290,0chrt0-21swapper/210:34:422
170989996,2cyclictest12-21ksoftirqd/008:25:000
15593290,0sleep30-21swapper/311:31:133
171099986,1cyclictest7377-21ssh11:06:483
171099985,2cyclictest34-21ksoftirqd/307:40:013
171099980,7cyclictest3342-21sed07:50:013
171099980,2cyclictest27215-21ssh12:18:003
171029984,3cyclictest7826-21sshd10:28:121
171099973,3cyclictest658-21snmpd10:56:503
171099973,3cyclictest31098-11brltty08:40:463
171099973,3cyclictest275-21systemd-journal08:07:443
171099973,1cyclictest0-21swapper/309:17:423
171099972,4cyclictest14999-21which12:10:173
171069973,3cyclictest658-21snmpd11:30:252
171069973,3cyclictest658-21snmpd07:23:052
171069973,3cyclictest504-21dbus-daemon09:45:002
171069972,4cyclictest25232-21sshd08:37:502
171069970,7cyclictest8442-21ssh09:49:422
171069970,3cyclictest12242-21ssh11:30:012
171069970,1cyclictest6984-21diskmemload12:04:392
171029975,2cyclictest16869-21kworker/1:110:24:431
171029973,3cyclictest658-21snmpd08:03:061
171029970,5cyclictest6984-21diskmemload11:58:031
171029970,0cyclictest0-21swapper/110:16:311
170989976,1cyclictest12-21ksoftirqd/010:45:020
170989975,1cyclictest12-21ksoftirqd/010:25:010
170989975,1cyclictest12-21ksoftirqd/009:55:010
170989973,3cyclictest275-21systemd-journal11:23:590
170989973,3cyclictest275-21systemd-journal10:11:470
170989971,4cyclictest26593-21munin-plugin-st07:30:000
19325260,0sleep20-21swapper/212:32:542
18867260,1sleep30-21swapper/308:25:013
171099966,0cyclictest0-21swapper/309:59:413
171099963,2cyclictest674-21lldpd10:12:133
171099963,2cyclictest663-21runrttasks08:35:533
171099963,2cyclictest6111-21ssh10:07:143
171099963,2cyclictest5608-21ssh11:25:163
171099963,2cyclictest30584-21rm11:20:243
171099963,2cyclictest29227-21cut08:45:163
171099963,2cyclictest28713-21taskset07:34:013
171099963,2cyclictest23275-21rm11:35:473
171099963,2cyclictest21610-21ssh10:36:093
171099963,2cyclictest19216-21rm11:14:353
171099963,2cyclictest11369-21ssh09:50:343
171099963,2cyclictest11296-21sshd10:50:053
171099962,3cyclictest658-21snmpd11:55:363
171099962,3cyclictest658-21snmpd11:51:033
171099962,3cyclictest658-21snmpd09:10:553
171099962,3cyclictest658-21snmpd09:07:043
171099962,3cyclictest658-21snmpd08:28:583
171099962,3cyclictest658-21snmpd07:16:013
171099962,3cyclictest658-21snmpd07:10:283
171099962,3cyclictest504-21dbus-daemon12:05:413
171099962,3cyclictest28282-21expr11:00:113
171099962,3cyclictest275-21systemd-journal09:40:053
171099962,3cyclictest275-21systemd-journal08:17:063
171099962,3cyclictest25047-21ls09:20:153
171099962,3cyclictest21430-21cat08:30:123
171099962,3cyclictest1907-21sed09:25:203
171099962,3cyclictest14520-21cat12:30:123
171099962,3cyclictest1189-21cat08:55:143
171099962,1cyclictest0-21swapper/310:15:043
171099962,1cyclictest0-21swapper/310:00:443
171099960,6cyclictest0-21swapper/310:23:383
171099960,6cyclictest0-21swapper/308:00:213
171099960,5cyclictest1053-21/usr/sbin/munin09:45:133
171099960,0cyclictest0-21swapper/312:03:493
171099960,0cyclictest0-21swapper/310:47:483
171069966,0cyclictest0-21swapper/210:56:282
171069964,1cyclictest3462-21gltestperf10:45:132
171069963,2cyclictest7627-21grep08:00:002
171069963,2cyclictest674-21lldpd10:50:152
171069963,2cyclictest667-21taskset07:41:532
171069963,2cyclictest658-21snmpd07:31:322
171069963,2cyclictest504-21dbus-daemon07:36:532
171069963,2cyclictest31819-21ssh11:21:222
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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