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2026-08-25 - 17:31
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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 25, 2026 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
94172299273,17sleep20-21swapper/207:07:232
94312278248,19sleep10-21swapper/107:07:351
92782261230,21sleep00-21swapper/007:05:370
93652259227,21sleep30-21swapper/307:06:453
324752610,0sleep30-21swapper/309:48:423
119012580,0sleep10-21swapper/109:35:381
101842580,0sleep10-21swapper/110:33:491
221142550,0sleep30-21swapper/311:59:003
221142550,0sleep30-21swapper/311:58:593
137402540,0sleep213741-21sh09:17:532
267062190,0sleep00-21swapper/010:24:230
10592170,0sleep10-21swapper/112:25:121
148992160,0sleep10-21swapper/109:57:211
4512110,0sleep10-21swapper/110:27:441
97379982,4cyclictest24535-21run-parts12:20:001
97329986,2cyclictest12-21ksoftirqd/009:14:590
97329980,7cyclictest26275-21ssh09:45:080
97329980,7cyclictest13051-21ssh11:14:590
20161280,0sleep00-21swapper/010:40:000
1824280,0sleep00-21swapper/011:46:030
17626280,3sleep012-21ksoftirqd/012:35:120
97459974,2cyclictest34-21ksoftirqd/307:55:013
97459973,3cyclictest8007-21cat11:30:193
97459970,7cyclictest0-21swapper/311:50:323
97419973,3cyclictest30727-21snmpd12:25:152
97419973,3cyclictest275-21systemd-journal10:10:002
97419973,3cyclictest14524-21ssh11:54:302
97419973,3cyclictest11261-21sshd10:54:052
97419973,3cyclictest0-21swapper/210:12:402
97419972,4cyclictest504-21dbus-daemon10:41:522
97419970,6cyclictest25266-21cron12:39:592
97379973,3cyclictest30727-21snmpd11:56:381
97379973,3cyclictest30727-21snmpd11:56:381
97379973,3cyclictest275-21systemd-journal10:06:001
97379973,1cyclictest0-21swapper/111:01:031
97379970,6cyclictest32326-21cron09:10:001
97379970,5cyclictest28246-21dump-pmu-power07:50:011
97329974,2cyclictest501-21in:imuxsock12:20:000
97329974,2cyclictest30727-21snmpd11:35:430
97329973,3cyclictest30727-21snmpd12:20:030
97329973,3cyclictest275-21systemd-journal08:38:000
97329972,3cyclictest275-21systemd-journal12:00:190
97329971,2cyclictest663-21runrttasks11:08:170
31654270,0sleep30-21swapper/309:28:393
2683270,0sleep30-21swapper/311:08:223
97459966,0cyclictest0-21swapper/312:29:453
97459966,0cyclictest0-21swapper/310:18:103
97459964,2cyclictest0-21swapper/309:17:173
97459964,1cyclictest574-21xargs11:45:193
97459964,1cyclictest19294-21df10:00:143
97459963,2cyclictest30727-21snmpd12:30:093
97459963,2cyclictest30727-21snmpd12:20:213
97459963,2cyclictest275-21systemd-journal10:21:003
97459963,2cyclictest2322-21cut09:30:163
97459963,2cyclictest22831-21ssh09:42:413
97459963,2cyclictest15349-21cat08:30:193
97459963,2cyclictest14609-21grep10:55:213
97459963,2cyclictest1084-21find12:05:203
97459962,3cyclictest674-21lldpd12:13:253
97459962,3cyclictest5542-21ls11:10:133
97459962,3cyclictest30727-21snmpd11:25:043
97459962,3cyclictest30727-21snmpd10:05:023
97459962,3cyclictest30727-21snmpd09:52:463
97459962,3cyclictest30727-21snmpd09:11:113
97459962,3cyclictest30727-21snmpd08:51:053
97459962,3cyclictest30727-21snmpd08:44:283
97459962,3cyclictest30727-21snmpd08:15:493
97459962,3cyclictest30727-21snmpd08:01:203
97459962,3cyclictest30727-21snmpd07:30:113
97459962,3cyclictest30727-21snmpd07:27:443
97459962,3cyclictest30727-21snmpd07:18:473
97459962,3cyclictest30332-21gdbus09:05:003
97459962,3cyclictest28958-21memory10:25:183
97459962,3cyclictest275-21systemd-journal08:55:283
97459962,3cyclictest24842-21memory07:40:183
97459962,3cyclictest22697-21grep11:00:213
97459962,3cyclictest11688-21cut09:55:173
97459962,1cyclictest0-21swapper/312:00:183
97459962,1cyclictest0-21swapper/311:41:243
97459962,1cyclictest0-21swapper/311:38:043
97459962,1cyclictest0-21swapper/311:15:053
97459962,1cyclictest0-21swapper/310:35:183
97459962,1cyclictest0-21swapper/309:22:033
97459960,6cyclictest0-21swapper/312:38:313
97459960,6cyclictest0-21swapper/310:46:403
97459960,4cyclictest32343-21diskmemload10:51:493
97459960,0cyclictest0-21swapper/310:31:523
97419966,0cyclictest0-21swapper/210:19:532
97419966,0cyclictest0-21swapper/209:45:432
97419964,1cyclictest13617-21grep10:55:152
97419963,2cyclictest9704-21diskstats12:30:152
97419963,2cyclictest9087-21taskset08:15:442
97419963,2cyclictest663-21runrttasks11:33:562
97419963,2cyclictest504-21dbus-daemon07:45:202
97419963,2cyclictest4369-21sh09:31:132
97419963,2cyclictest31618-21ssh09:28:382
97419963,2cyclictest30727-21snmpd11:58:472
97419963,2cyclictest30727-21snmpd11:58:472
97419963,2cyclictest30727-21snmpd11:45:042
97419963,2cyclictest30117-21latency_hist09:05:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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