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2026-09-09 - 12:03
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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 Sep 09, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
290122302273,19sleep20-21swapper/219:08:562
288682268238,19sleep00-21swapper/019:07:050
287882266236,19sleep30-21swapper/319:06:123
271192262236,17sleep10-21swapper/119:05:051
225992600,0sleep10-21swapper/121:30:531
16292590,0sleep30-21swapper/300:13:163
291332550,0sleep20-21swapper/200:30:052
265162550,0sleep10-21swapper/122:12:101
173262550,0sleep20-21swapper/223:44:162
159062550,0sleep10-21swapper/121:46:111
71722540,0sleep30-21swapper/323:56:553
140052530,0sleep20-21swapper/222:24:402
92312170,0sleep20-21swapper/223:00:162
218582170,0sleep10-21swapper/100:25:161
298752150,0sleep30-21swapper/323:31:483
201252130,0sleep20-21swapper/222:47:182
292962120,0sleep20-21swapper/222:52:542
31602290,0sleep00-21swapper/022:54:410
292109994,4cyclictest9166-21snmpd00:09:592
29475280,0sleep10-21swapper/123:31:301
292109987,1cyclictest29625-1kworker/u9:023:17:172
292059984,3cyclictest275-21systemd-journal00:39:241
292059980,2cyclictest18710-21diskmemload23:58:571
292029987,1cyclictest12-21ksoftirqd/020:25:000
292029986,2cyclictest12-21ksoftirqd/023:45:000
13651280,0sleep10-21swapper/123:02:591
6202270,2sleep06225-21rm23:56:130
3382270,0sleep10-21swapper/100:33:591
292149973,3cyclictest9166-21snmpd22:39:443
292149973,3cyclictest9166-21snmpd21:47:373
292149973,3cyclictest504-21dbus-daemon20:05:003
292149973,3cyclictest275-21systemd-journal23:15:593
292149970,6cyclictest11027-21sort19:40:013
292109974,2cyclictest9166-21snmpd21:38:572
292109973,3cyclictest9166-21snmpd21:34:392
292109973,3cyclictest9166-21snmpd20:03:192
292109973,3cyclictest275-21systemd-journal23:28:202
292109972,1cyclictest0-21swapper/222:31:542
292059974,2cyclictest275-21systemd-journal20:07:381
292059973,3cyclictest9166-21snmpd22:41:551
292059973,3cyclictest560-21gdbus22:20:011
292059970,4cyclictest7028-21perf22:40:011
292029974,2cyclictest3211-21/usr/sbin/munin23:35:180
292029974,2cyclictest12-21ksoftirqd/023:30:010
292029973,3cyclictest275-21systemd-journal20:20:000
292029973,3cyclictest275-21systemd-journal20:08:030
292029973,1cyclictest304372gltestperf21:55:170
21396270,0sleep00-21swapper/021:10:420
12475270,0sleep10-21swapper/122:04:131
292149966,0cyclictest0-21swapper/322:45:253
292149966,0cyclictest0-21swapper/322:30:023
292149966,0cyclictest0-21swapper/321:57:483
292149966,0cyclictest0-21swapper/321:36:513
292149966,0cyclictest0-21swapper/320:50:543
292149966,0cyclictest0-21swapper/300:23:053
292149964,1cyclictest4846-21cut21:40:113
292149963,2cyclictest9485-21ntp_states23:00:173
292149963,2cyclictest9166-21snmpd22:22:323
292149963,2cyclictest9076-21ssh22:01:373
292149963,2cyclictest8119-21gltestperf22:40:163
292149963,2cyclictest663-21runrttasks23:45:353
292149963,2cyclictest663-21runrttasks20:31:193
292149963,2cyclictest30324-21rm21:16:073
292149963,2cyclictest275-21systemd-journal19:52:193
292149963,2cyclictest275-21systemd-journal00:03:063
292149963,2cyclictest24720-21ssh22:10:473
292149963,2cyclictest1895-21ssh00:32:523
292149963,2cyclictest13623-21sh21:25:243
292149963,2cyclictest13623-21sh21:25:243
292149963,1cyclictest0-21swapper/323:25:373
292149962,3cyclictest9166-21snmpd20:45:313
292149962,3cyclictest9166-21snmpd19:28:543
292149962,3cyclictest9166-21snmpd00:25:053
292149962,3cyclictest6880-21expr19:30:133
292149962,3cyclictest674-21lldpd20:09:243
292149962,3cyclictest3912-21expr21:20:153
292149962,3cyclictest32028-21ls22:55:013
292149962,3cyclictest28124-21cat23:50:153
292149962,3cyclictest275-21systemd-journal20:21:283
292149962,3cyclictest22312-21cat21:50:193
292149962,3cyclictest12535-21expr20:55:133
292149962,3cyclictest11511-21ntp_kernel_err23:40:173
292149962,1cyclictest0-21swapper/323:35:143
292149962,1cyclictest0-21swapper/323:22:273
292149962,1cyclictest0-21swapper/323:22:273
292149962,1cyclictest0-21swapper/322:25:053
292149962,1cyclictest0-21swapper/300:06:453
292149961,4cyclictest25532-21needreboot20:10:183
292149961,3cyclictest275-21systemd-journal21:11:403
292149960,6cyclictest0-21swapper/323:11:463
292149960,6cyclictest0-21swapper/321:32:453
292149960,6cyclictest0-21swapper/300:35:583
292109963,2cyclictest9166-21snmpd21:00:562
292109963,2cyclictest8181-21sshd19:31:202
292109963,2cyclictest663-21runrttasks00:10:412
292109963,2cyclictest6175-21rm21:21:042
292109963,2cyclictest5569-21grep00:15:182
292109963,2cyclictest275-21systemd-journal19:44:382
292109963,2cyclictest26088-21ssh23:30:082
292109963,2cyclictest2330-21sh21:57:512
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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