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2026-08-15 - 06:42
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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 Sat Aug 15, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33452313288,17sleep10-21swapper/119:07:541
31532285256,17sleep20-21swapper/219:05:342
34232260229,20sleep00-21swapper/019:08:530
32112258227,20sleep30-21swapper/319:06:113
224862690,0sleep10-21swapper/121:45:381
293752620,5sleep334-21ksoftirqd/320:05:013
137292610,0sleep00-21swapper/021:40:200
208602600,0sleep30-21swapper/320:55:183
171332580,0sleep20-21swapper/222:21:232
158222580,0sleep00-21swapper/023:57:270
196032570,0sleep00-21swapper/000:19:410
210512560,0sleep00-21swapper/023:21:350
258862190,0sleep20-21swapper/219:55:152
208952180,0sleep30-21swapper/323:02:283
261502170,0sleep30-21swapper/321:29:093
289572140,0sleep20-21swapper/223:45:272
264902140,0sleep20-21swapper/222:26:552
154222130,0sleep10-21swapper/123:57:081
234972110,3sleep334-21ksoftirqd/322:25:163
949290,1sleep00-21swapper/021:33:190
36259996,2cyclictest9413-21sh23:53:533
36219998,1cyclictest28-21ksoftirqd/200:30:002
36129992,4cyclictest20390-21idleruntime-cro19:45:010
36129992,4cyclictest20390-21idleruntime-cro19:45:010
28755290,0sleep00-21swapper/022:47:520
36259984,3cyclictest504-21dbus-daemon21:20:173
36129983,4cyclictest30727-21snmpd23:29:400
36129982,4cyclictest17247-21turbostat20:50:000
36259973,3cyclictest14799-21pluginstate22:40:013
36219973,3cyclictest275-21systemd-journal00:33:402
36219970,1cyclictest7211-21ssh23:33:022
36179973,3cyclictest22594-21cron19:50:011
36179973,1cyclictest0-21swapper/122:22:171
36179970,6cyclictest27214-21tr23:25:171
36129976,1cyclictest0-21swapper/023:50:270
36129973,3cyclictest275-21systemd-journal22:17:410
36129973,3cyclictest275-21systemd-journal00:07:560
30866270,0sleep20-21swapper/221:50:402
28726270,0sleep30-21swapper/321:30:143
26346270,0chrt0-21swapper/021:10:000
24986270,0sleep10-21swapper/122:25:461
36259966,0cyclictest0-21swapper/323:08:033
36259966,0cyclictest0-21swapper/322:12:153
36259965,1cyclictest0-21swapper/322:32:563
36259963,2cyclictest765-21ssh23:10:033
36259963,2cyclictest7533-21ssh00:11:463
36259963,2cyclictest4052-21ssh23:30:373
36259963,2cyclictest30727-21snmpd22:02:403
36259963,2cyclictest30727-21snmpd19:31:173
36259963,2cyclictest304-21systemd-udevd21:17:353
36259963,2cyclictest27739-21ssh21:10:163
36259963,2cyclictest275-21systemd-journal22:21:283
36259963,2cyclictest275-21systemd-journal20:29:383
36259963,2cyclictest27121-21systemd-udevd22:46:383
36259963,2cyclictest25323-21ssh23:44:043
36259963,2cyclictest20753-21ntp_kernel_pll_00:00:173
36259963,2cyclictest16689-21rm23:38:523
36259963,1cyclictest0-21swapper/300:24:283
36259962,3cyclictest9649-21cat23:15:103
36259962,3cyclictest9162-21seq22:55:163
36259962,3cyclictest30727-21snmpd22:40:383
36259962,3cyclictest30727-21snmpd21:55:253
36259962,3cyclictest30727-21snmpd21:53:163
36259962,3cyclictest30727-21snmpd20:52:493
36259962,3cyclictest30727-21snmpd20:45:493
36259962,3cyclictest30727-21snmpd20:21:033
36259962,3cyclictest30727-21snmpd20:05:083
36259962,3cyclictest30727-21snmpd19:58:153
36259962,3cyclictest30727-21snmpd19:41:593
36259962,3cyclictest30727-21snmpd19:41:593
36259962,3cyclictest30727-21snmpd00:26:503
36259962,3cyclictest30727-21snmpd00:06:343
36259962,3cyclictest304-21systemd-udevd21:35:353
36259962,3cyclictest304-21systemd-udevd21:01:353
36259962,3cyclictest275-21systemd-journal23:22:293
36259962,3cyclictest275-21systemd-journal00:38:503
36259962,3cyclictest24752-21expr21:05:143
36259962,3cyclictest21310-21cat19:45:123
36259962,3cyclictest20974-21tail21:45:143
36259962,3cyclictest13911-21awk00:15:203
36259962,3cyclictest11576-21expr23:55:103
36259961,3cyclictest275-21systemd-journal19:16:153
36259960,6cyclictest0-21swapper/322:15:293
36259960,5cyclictest10055-21ls19:20:163
36259960,2cyclictest21512-21cut22:05:123
36259960,0cyclictest0-21swapper/323:25:303
36259960,0cyclictest0-21swapper/322:53:153
36259960,0cyclictest0-21swapper/321:42:313
36259960,0cyclictest0-21swapper/319:35:373
36219966,0cyclictest0-21swapper/221:21:332
36219966,0cyclictest0-21swapper/219:25:142
36219966,0cyclictest0-21swapper/200:09:002
36219963,2cyclictest30727-21snmpd23:51:222
36219963,2cyclictest30727-21snmpd20:21:362
36219963,2cyclictest25760-21ntpq23:05:172
36219963,2cyclictest22455-21sh23:03:402
36219963,2cyclictest21912-21ssh21:25:572
36219963,2cyclictest15748-21ssh23:38:092
36219963,2cyclictest11192-21pluginstate19:25:012
36219963,2cyclictest10178-21ssh21:19:482
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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