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2025-11-29 - 18:55
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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 Nov 29, 2025 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
254122305277,17sleep20-21swapper/207:05:452
255392271236,22sleep30-21swapper/307:07:223
255462266233,21sleep00-21swapper/007:07:280
254062257224,21sleep10-21swapper/107:05:401
41942640,0sleep10-21swapper/107:30:151
152332600,0sleep228-21ksoftirqd/212:05:212
30032570,3sleep228-21ksoftirqd/210:15:212
184252570,0sleep30-21swapper/309:10:583
32742550,0sleep30-21swapper/311:06:083
19422550,0sleep00-21swapper/012:39:340
134062390,0sleep10-21swapper/110:24:181
277082170,0sleep1211rcuc/112:35:151
240952170,0sleep20-21swapper/211:48:592
169712140,0sleep30-21swapper/310:26:153
123862120,0sleep10-21swapper/111:14:271
257052110,0chrt0-21swapper/111:50:101
307222100,0sleep00-21swapper/011:02:450
2589599105,3cyclictest19982-21systemd-journal09:47:360
2589599104,3cyclictest32402-21munin-run11:55:010
259099994,3cyclictest19982-21systemd-journal07:29:053
259019993,3cyclictest28118-21munin-run12:15:012
258999995,2cyclictest19982-21systemd-journal07:24:041
258999990,7cyclictest19982-21systemd-journal12:13:381
258959995,3cyclictest508-21dbus-daemon07:18:390
32480280,0sleep20-21swapper/210:39:092
26105280,0sleep20-21swapper/210:08:532
259099984,3cyclictest19982-21systemd-journal08:12:543
259099984,2cyclictest19982-21systemd-journal08:54:583
259019984,3cyclictest19982-21systemd-journal12:35:192
259019983,3cyclictest19982-21systemd-journal11:21:292
259019983,3cyclictest19982-21systemd-journal11:09:222
259019982,3cyclictest4464-21awk08:45:012
259019982,3cyclictest11206-21munin-run09:00:002
258999984,3cyclictest508-21dbus-daemon07:16:341
258999983,3cyclictest502-21systemd-logind09:24:401
258959984,3cyclictest508-21dbus-daemon10:32:400
258959983,3cyclictest7661-21lldpd11:10:080
258959983,3cyclictest19982-21systemd-journal10:38:550
258959983,3cyclictest19982-21systemd-journal09:07:330
11836280,0sleep00-21swapper/012:25:210
8237270,1sleep325887-21cyclictest07:40:133
259099974,2cyclictest34-21ksoftirqd/307:20:023
259099974,2cyclictest29455-21sshd09:20:023
259099974,2cyclictest16745-21cron08:00:013
259099973,3cyclictest508-21dbus-daemon11:40:013
259099973,3cyclictest508-21dbus-daemon09:55:013
259099973,3cyclictest30749-21sshd12:15:453
259099973,3cyclictest30654-21snmpd12:21:173
259099973,3cyclictest30654-21snmpd11:50:333
259099973,3cyclictest30654-21snmpd07:54:483
259099973,3cyclictest28832-21users11:00:223
259099973,3cyclictest25002-21cat08:15:203
259099973,3cyclictest21297-21cron09:40:023
259099973,3cyclictest19982-21systemd-journal11:41:313
259099973,3cyclictest19982-21systemd-journal10:10:443
259099973,3cyclictest19982-21systemd-journal10:10:003
259099973,3cyclictest19904-21diskstats11:20:143
259099973,3cyclictest19019-21grep12:30:163
259099973,3cyclictest0-21swapper/311:33:363
259099973,3cyclictest0-21swapper/310:18:593
259099973,2cyclictest19982-21systemd-journal08:39:163
259099973,1cyclictest0-21swapper/312:37:213
259099973,1cyclictest0-21swapper/310:00:063
259099973,1cyclictest0-21swapper/309:56:393
259099972,3cyclictest19982-21systemd-journal09:15:293
259099972,3cyclictest19982-21systemd-journal09:15:293
259099972,3cyclictest19982-21systemd-journal09:01:183
259019974,2cyclictest30654-21snmpd09:55:182
259019973,3cyclictest7682-21cut11:10:172
259019973,3cyclictest508-21dbus-daemon08:02:522
259019973,3cyclictest30654-21snmpd12:02:582
259019973,3cyclictest2227-21awk08:40:012
259019973,3cyclictest19982-21systemd-journal09:50:342
259019973,3cyclictest0-21swapper/210:22:242
259019973,3cyclictest0-21swapper/210:10:222
259019973,2cyclictest19982-21systemd-journal07:19:542
259019973,1cyclictest0-21swapper/212:26:182
259019973,1cyclictest0-21swapper/209:14:502
259019972,3cyclictest7661-21lldpd10:55:382
259019970,4cyclictest15205-21munin-run09:35:012
259019970,4cyclictest12316-21dump-pmu-power07:50:012
258999976,1cyclictest0-21swapper/111:59:481
258999974,2cyclictest508-21dbus-daemon08:33:461
258999974,2cyclictest508-21dbus-daemon07:48:171
258999974,2cyclictest11736-21in:imuxsock09:25:551
258999973,3cyclictest19982-21systemd-journal10:15:011
258999973,3cyclictest0-21swapper/111:30:131
258999973,3cyclictest0-21swapper/110:25:241
258999973,3cyclictest0-21swapper/109:12:271
258999973,1cyclictest0-21swapper/111:40:501
258999973,1cyclictest0-21swapper/109:55:021
258999972,3cyclictest19982-21systemd-journal09:15:291
258999972,3cyclictest19982-21systemd-journal09:15:291
258999972,3cyclictest19982-21systemd-journal09:08:471
258999971,3cyclictest7661-21lldpd12:08:561
258999970,5cyclictest19982-21systemd-journal09:32:351
258959976,1cyclictest12-21ksoftirqd/009:20:000
258959974,2cyclictest508-21dbus-daemon08:45:260
258959974,2cyclictest11736-21in:imuxsock11:55:170
258959973,3cyclictest6587-21awk11:35:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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