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2026-03-10 - 00:05
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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 Mon Mar 09, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33722303280,15sleep20-21swapper/207:09:002
34382286214,62sleep00-21swapper/007:09:510
32372267235,21sleep10-21swapper/107:07:141
32852265232,23sleep30-21swapper/307:07:533
306702610,0sleep10-21swapper/110:10:331
223062540,0sleep00-21swapper/010:25:180
309512220,0sleep00-21swapper/011:49:060
167202200,1sleep3331rcuc/311:00:573
52142180,0sleep30-21swapper/310:54:523
168672180,0sleep00-21swapper/012:38:570
14362170,0sleep10-21swapper/112:29:521
314202160,0sleep10-21swapper/108:10:011
190302140,0sleep00-21swapper/012:20:180
273932130,0sleep00-21swapper/011:07:500
321732120,0sleep20-21swapper/212:28:332
104642120,0sleep30-21swapper/310:38:063
223762110,0sleep30-21swapper/312:03:193
8530290,0sleep10-21swapper/110:36:361
20274290,0sleep00-21swapper/011:42:180
18156290,0chrt0-21swapper/110:03:421
6951280,0sleep00-21swapper/009:56:280
35669986,1cyclictest28-21ksoftirqd/207:20:012
35669983,3cyclictest5566-21munin-run08:25:012
35669982,3cyclictest24615-21apt07:55:002
35669980,7cyclictest0-21swapper/212:20:192
2915280,0sleep10-21swapper/109:15:151
35709974,2cyclictest10842-21cron09:40:013
35709973,3cyclictest658-21snmpd12:21:593
35709973,3cyclictest275-21systemd-journal12:14:423
35709972,3cyclictest275-21systemd-journal09:00:113
35669974,2cyclictest504-21dbus-daemon07:41:072
35669974,2cyclictest24680-21sshd11:05:442
35669973,3cyclictest658-21snmpd11:39:452
35669973,3cyclictest658-21snmpd11:00:312
35669973,3cyclictest658-21snmpd10:26:322
35669973,3cyclictest275-21systemd-journal09:31:552
35669972,3cyclictest10861-21dump-pmu-power09:40:002
35669970,4cyclictest18912-21munin-run08:55:002
35629976,1cyclictest0-21swapper/111:02:001
35629973,3cyclictest658-21snmpd09:43:581
35629973,3cyclictest658-21snmpd08:24:341
35629973,3cyclictest275-21systemd-journal11:14:551
35629972,2cyclictest674-21lldpd10:19:081
35629970,3cyclictest275-21systemd-journal09:14:551
35589973,3cyclictest658-21snmpd11:13:390
35589973,3cyclictest658-21snmpd08:55:460
35589973,3cyclictest658-21snmpd08:43:260
35589973,3cyclictest504-21dbus-daemon09:20:000
35589973,3cyclictest11052-21cat09:20:140
35589973,1cyclictest0-21swapper/012:33:290
35589972,4cyclictest18974-21ssh10:04:190
11130270,0sleep20-21swapper/208:35:162
35709964,2cyclictest501-21in:imuxsock08:36:453
35709963,2cyclictest8607-21ssh10:56:053
35709963,2cyclictest663-21runrttasks09:25:513
35709963,2cyclictest4333-21ssh09:15:473
35709963,2cyclictest30450-21sh11:48:443
35709963,2cyclictest29287-21cut10:10:163
35709963,2cyclictest275-21systemd-journal10:06:573
35709963,2cyclictest275-21systemd-journal08:40:543
35709963,2cyclictest275-21systemd-journal08:07:033
35709963,2cyclictest25532-21sh10:27:313
35709963,2cyclictest22674-21grep10:45:163
35709963,2cyclictest21139-21idleruntime-cro09:00:003
35709963,2cyclictest1339-21ssh11:30:463
35709963,2cyclictest11740-21tr12:35:183
35709963,2cyclictest11062-21ssh12:15:223
35709963,2cyclictest10962-21which09:20:133
35709962,3cyclictest7893-21wc08:30:003
35709962,3cyclictest7373-21cat11:15:173
35709962,3cyclictest674-21lldpd09:45:223
35709962,3cyclictest658-21snmpd11:57:043
35709962,3cyclictest658-21snmpd11:51:013
35709962,3cyclictest658-21snmpd10:21:093
35709962,3cyclictest658-21snmpd09:33:423
35709962,3cyclictest658-21snmpd08:47:403
35709962,3cyclictest658-21snmpd08:22:103
35709962,3cyclictest658-21snmpd08:15:123
35709962,3cyclictest658-21snmpd07:28:483
35709962,3cyclictest658-21snmpd07:20:083
35709962,3cyclictest658-21snmpd07:17:563
35709962,3cyclictest275-21systemd-journal11:40:253
35709962,3cyclictest275-21systemd-journal11:37:083
35709962,3cyclictest23614-21cut11:05:173
35709962,3cyclictest17160-21expr08:50:123
35709962,3cyclictest0-21swapper/311:25:013
35709962,1cyclictest0-21swapper/310:30:143
35709962,1cyclictest0-21swapper/310:15:383
35709962,1cyclictest0-21swapper/309:51:203
35709960,3cyclictest275-21systemd-journal09:59:523
35709960,2cyclictest14901-21users07:30:213
35709960,0cyclictest0-21swapper/312:34:233
35709960,0cyclictest0-21swapper/311:11:463
35669966,0cyclictest0-21swapper/212:11:342
35669965,1cyclictest0-21swapper/210:39:532
35669964,1cyclictest15674-21ssh10:40:422
35669963,2cyclictest7386-21ssh09:18:092
35669963,2cyclictest658-21snmpd11:30:002
35669963,2cyclictest658-21snmpd09:11:362
35669963,2cyclictest504-21dbus-daemon11:12:302
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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