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2026-05-21 - 08:57
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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 Thu May 21, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
57852289258,21sleep10-21swapper/119:07:091
58342286256,19sleep20-21swapper/219:07:462
59422274224,40sleep00-21swapper/019:09:090
59572270238,21sleep30-21swapper/319:09:203
125092630,0sleep00-21swapper/020:35:010
195252620,0sleep30-21swapper/321:43:273
246802610,0sleep30-21swapper/321:26:373
222342610,0sleep20-21swapper/222:24:192
216192610,0sleep20-21swapper/223:21:212
110572580,0sleep30-21swapper/322:17:073
272252570,0sleep10-21swapper/122:07:241
239132570,0sleep20-21swapper/222:44:402
21262560,0sleep00-21swapper/022:30:580
21262560,0sleep00-21swapper/022:30:580
161942560,0sleep00-21swapper/019:30:110
52042550,0sleep10-21swapper/123:50:191
231662550,0sleep10-21swapper/121:45:171
267072420,0sleep10-21swapper/100:03:561
229062190,1sleep30-21swapper/300:00:583
285922140,0sleep20-21swapper/221:10:022
612399105,3cyclictest275-21systemd-journal00:40:003
612399103,3cyclictest23891-21ssh00:21:213
612399103,3cyclictest2093-21ssh23:29:403
612399102,5cyclictest28150-21ssh22:27:263
611599107,2cyclictest22-21ksoftirqd/100:00:011
61239996,2cyclictest0-21swapper/322:40:023
61239994,4cyclictest28399-21cut23:45:123
61239993,2cyclictest3828-21ssh22:32:163
61239993,2cyclictest3828-21ssh22:32:163
61239993,2cyclictest28324-21diskmemload00:12:383
61239993,2cyclictest12139-21ssh21:19:453
61239992,3cyclictest28324-21diskmemload21:45:033
61239992,3cyclictest28324-21diskmemload21:37:103
61239992,2cyclictest28324-21diskmemload23:21:533
61239991,5cyclictest7212-21ssh22:53:453
61239990,7cyclictest8963-21ssh23:14:283
61239990,7cyclictest0-21swapper/323:54:433
61239990,6cyclictest27454-21sh23:44:593
61239990,6cyclictest27083-21wc21:05:153
61239990,6cyclictest12873-21ssh21:20:073
61239990,4cyclictest7490-21mailstats21:55:183
61239990,3cyclictest9116-21ps22:35:183
61159997,2cyclictest22-21ksoftirqd/100:20:001
61119998,1cyclictest12-21ksoftirqd/020:05:010
61239986,2cyclictest0-21swapper/300:30:023
61239986,1cyclictest0-21swapper/322:45:023
61239985,2cyclictest0-21swapper/319:25:023
61239984,3cyclictest32229-21fschecks_time20:05:163
61239984,3cyclictest30471-21wc21:50:133
61239984,3cyclictest29490-21diskstats00:25:123
61239984,3cyclictest22634-21latency20:55:143
61239984,3cyclictest21146-21ssh23:01:423
61239984,3cyclictest1711-21ssh22:11:203
61239984,3cyclictest16648-21fschecks_time19:30:133
61239984,3cyclictest15980-21grep22:00:193
61239984,3cyclictest12489-21apt-key20:35:013
61239984,3cyclictest10184-21acpi23:15:143
61239983,1cyclictest13182-21ssh23:35:273
61239982,2cyclictest13476-21load00:15:153
61239981,3cyclictest28084-21ssh23:05:413
61239980,7cyclictest0-21swapper/322:55:173
61239980,6cyclictest30783-21ssh00:05:433
61239980,5cyclictest26700-21sh22:06:593
61239980,3cyclictest5913-21rm23:31:143
61239980,3cyclictest30146-21smartctl21:30:133
61239980,3cyclictest28324-21diskmemload21:10:443
61239980,2cyclictest12761-21sed23:55:143
61189986,1cyclictest28-21ksoftirqd/220:20:012
61159980,2cyclictest9577-21diskmemload22:15:591
61119987,1cyclictest12-21ksoftirqd/019:15:010
61119987,1cyclictest12-21ksoftirqd/000:10:000
15324280,0sleep30-21swapper/322:20:123
13624280,0sleep00-21swapper/021:40:070
61239976,0cyclictest25092-21apt-get19:50:093
61239975,2cyclictest13393-21perf19:25:013
61239975,1cyclictest0-21swapper/320:00:123
61239974,3cyclictest9421-21mailstats20:25:183
61239974,2cyclictest29475-21latency_hist20:00:003
61239974,2cyclictest20189-21gltestperf20:50:113
61239974,2cyclictest17630-21grep20:45:123
61239973,3cyclictest8972-21timerwakeupswit19:15:013
61239973,3cyclictest6237-21cstates20:20:133
61239973,3cyclictest24790-21if_enp4s021:00:143
61239973,3cyclictest23434-21gltestperf19:45:143
61239973,3cyclictest20768-21cpuspeed_turbos19:40:133
61239973,3cyclictest18405-21acpi19:35:123
61239970,3cyclictest3886-21cat20:15:123
61239970,3cyclictest15436-21cat20:40:123
61189975,1cyclictest0-21swapper/221:26:392
61189973,3cyclictest658-21snmpd00:39:422
61189973,1cyclictest0-21swapper/223:35:322
61189972,4cyclictest0-21swapper/222:45:012
61189970,4cyclictest13243-21munin-run21:40:002
61159976,1cyclictest0-21swapper/121:25:201
61159973,3cyclictest658-21snmpd23:37:391
61159973,3cyclictest658-21snmpd00:14:431
61119973,3cyclictest501-21in:imuxsock23:40:010
61119973,3cyclictest29860-21cron21:50:010
61119972,3cyclictest275-21systemd-journal21:17:360
61119972,3cyclictest275-21systemd-journal20:44:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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