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2026-08-18 - 08:42
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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 Tue Aug 18, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41162278244,22sleep10-21swapper/119:06:461
24002273224,20sleep30-21swapper/319:05:113
40872271241,19sleep20-21swapper/219:06:312
41702270243,18sleep00-21swapper/019:07:250
236502650,0sleep10-21swapper/122:44:331
179742630,0sleep00-21swapper/021:23:390
84292620,0sleep10-21swapper/123:13:561
115632600,0sleep10-21swapper/122:17:261
170282590,1sleep00-21swapper/022:40:150
33262580,0sleep00-21swapper/022:31:470
45252530,0sleep10-21swapper/121:54:241
151092380,0sleep00-21swapper/023:36:570
290372170,0sleep027265-21kworker/u8:021:10:170
243492170,0sleep30-21swapper/300:01:353
89142160,0sleep00-21swapper/021:56:230
322442160,0sleep20-21swapper/223:08:442
100122160,0sleep00-21swapper/022:35:310
190972150,0sleep20-21swapper/221:24:292
261472140,0sleep30-21swapper/322:25:493
62772130,0sleep20-21swapper/200:30:012
4762130,0sleep20-21swapper/222:30:162
117032120,0sleep10-21swapper/122:36:481
310152100,0chrt0-21swapper/123:07:471
44869990,2cyclictest2837-21ssh21:14:532
10267290,0chrt0-21swapper/021:38:160
5369280,0sleep30-21swapper/319:10:173
44889982,4cyclictest275-21systemd-journal21:50:013
44869986,1cyclictest10617-21ssh22:35:582
44779984,2cyclictest275-21systemd-journal23:46:410
14917280,0sleep10-21swapper/100:35:121
44889976,1cyclictest14468-21ssh23:36:283
44889974,2cyclictest18770-21grep19:40:133
44889973,3cyclictest9186-21sshd19:16:213
44889973,3cyclictest275-21systemd-journal21:59:403
44889973,3cyclictest275-21systemd-journal21:06:323
44889973,3cyclictest23745-21ntpq21:00:193
44889970,1cyclictest0-21swapper/323:24:483
44869976,1cyclictest28747-21ssh22:08:332
44869975,1cyclictest32286-21sshd21:31:442
44869975,1cyclictest28-21ksoftirqd/200:20:002
44869973,2cyclictest275-21systemd-journal21:25:062
44819973,3cyclictest275-21systemd-journal19:16:341
44819972,4cyclictest275-21systemd-journal23:28:451
44819972,3cyclictest1425-21cron20:10:001
44819971,3cyclictest2202-21munin-run20:15:001
44819970,4cyclictest3443-21munin-run23:50:001
44779973,3cyclictest275-21systemd-journal19:28:080
44779973,3cyclictest15206-21ntpq19:30:170
44779970,1cyclictest7860-21ssh23:51:470
28493270,2chrt28-21ksoftirqd/222:27:362
44889966,0cyclictest0-21swapper/321:10:043
44889964,1cyclictest15203-21ntp_states19:30:173
44889963,2cyclictest9037-21ssh00:11:543
44889963,2cyclictest6443-21ssh23:50:423
44889963,2cyclictest5398-21/usr/sbin/munin21:35:163
44889963,2cyclictest4563-21ntpq21:15:183
44889963,2cyclictest31717-21awk20:05:193
44889963,2cyclictest30727-21snmpd23:13:013
44889963,2cyclictest30384-21ssh23:45:523
44889963,2cyclictest275-21systemd-journal23:06:393
44889963,2cyclictest21064-21cat21:25:173
44889963,2cyclictest19286-21ntpq20:50:183
44889963,2cyclictest16610-21rm21:41:423
44889963,2cyclictest16208-21cat22:20:173
44889963,2cyclictest12249-21ssh23:15:283
44889963,2cyclictest12193-21tr19:25:143
44889963,2cyclictest11702-21ssh22:36:483
44889963,2cyclictest10740-21ssh00:32:133
44889963,2cyclictest0-21swapper/322:31:423
44889963,1cyclictest0-21swapper/323:00:263
44889962,3cyclictest560-21gdbus22:05:013
44889962,3cyclictest4058-21cut23:30:183
44889962,3cyclictest30727-21snmpd23:42:263
44889962,3cyclictest30727-21snmpd23:25:433
44889962,3cyclictest30727-21snmpd21:31:113
44889962,3cyclictest30727-21snmpd20:22:033
44889962,3cyclictest30727-21snmpd20:18:333
44889962,3cyclictest30727-21snmpd19:56:323
44889962,3cyclictest30727-21snmpd19:46:083
44889962,3cyclictest30727-21snmpd00:23:303
44889962,3cyclictest21781-21expr21:45:143
44889960,6cyclictest0-21swapper/322:11:113
44889960,6cyclictest0-21swapper/300:26:013
44889960,6cyclictest0-21swapper/300:09:473
44889960,4cyclictest275-21systemd-journal23:56:163
44889960,0cyclictest0-21swapper/322:15:093
44869966,0cyclictest0-21swapper/223:00:162
44869966,0cyclictest0-21swapper/222:40:182
44869966,0cyclictest0-21swapper/200:06:542
44869965,1cyclictest28-21ksoftirqd/223:50:002
44869964,1cyclictest5018-21irqstats23:50:162
44869963,2cyclictest9484-21ssh21:18:342
44869963,2cyclictest4179-21awk23:30:182
44869963,2cyclictest30727-21snmpd22:11:422
44869963,2cyclictest30727-21snmpd21:01:072
44869963,2cyclictest30727-21snmpd20:06:512
44869963,2cyclictest30687-21sh23:26:492
44869963,2cyclictest29010-21sshd22:47:172
44869963,2cyclictest275-21systemd-journal20:24:392
44869963,2cyclictest275-21systemd-journal19:11:342
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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