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2026-04-09 - 20:13
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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 Apr 09, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
51522278248,19sleep20-21swapper/207:08:242
52432272243,19sleep00-21swapper/007:09:350
52342272240,21sleep10-21swapper/107:09:281
49402264232,22sleep30-21swapper/307:05:403
148602840,0sleep20-21swapper/210:39:262
64692620,0sleep10-21swapper/111:13:121
154932600,0sleep20-21swapper/210:59:202
300962560,0sleep00-21swapper/011:46:350
277922560,0sleep30-21swapper/310:46:363
95832540,0sleep30-21swapper/311:54:193
255672540,0sleep00-21swapper/011:25:010
187612540,0sleep00-21swapper/011:59:590
206162210,0sleep10-21swapper/110:04:011
215402190,0sleep00-21swapper/011:41:220
133962190,0sleep10-21swapper/110:57:431
34912180,0sleep30-21swapper/309:53:383
130152170,0sleep00-21swapper/012:35:120
39232160,0sleep20-21swapper/209:15:002
264692150,0sleep20-21swapper/209:05:152
321162140,0sleep10-21swapper/109:50:441
300962140,0sleep10-21swapper/110:09:421
140632140,0sleep30-21swapper/309:40:153
73102130,0sleep20-21swapper/211:52:332
209442120,0sleep30-21swapper/312:20:133
538999108,1cyclictest34-21ksoftirqd/308:10:013
538099108,1cyclictest22-21ksoftirqd/110:50:001
9788290,0sleep00-21swapper/012:33:040
53859995,3cyclictest658-21snmpd10:19:322
53899984,3cyclictest275-21systemd-journal09:22:473
53899983,3cyclictest275-21systemd-journal11:16:483
53859984,3cyclictest275-21systemd-journal08:00:012
53809987,1cyclictest22-21ksoftirqd/109:15:001
53779983,3cyclictest275-21systemd-journal08:25:010
27302280,0sleep10-21swapper/110:26:521
8522270,0sleep10-21swapper/111:34:111
53899975,2cyclictest34-21ksoftirqd/308:40:013
53899973,3cyclictest658-21snmpd09:28:123
53899973,3cyclictest658-21snmpd07:56:453
53899973,3cyclictest275-21systemd-journal09:39:493
53899972,4cyclictest0-21swapper/312:05:103
53899972,4cyclictest0-21swapper/312:05:103
53899970,7cyclictest0-21swapper/312:32:493
53859974,2cyclictest504-21dbus-daemon12:10:012
53859974,2cyclictest504-21dbus-daemon12:10:012
53859974,2cyclictest275-21systemd-journal08:15:462
53859974,2cyclictest18957-21sshd10:41:102
53859973,3cyclictest9712-21ntpq07:15:172
53859973,3cyclictest275-21systemd-journal12:13:492
53859973,3cyclictest275-21systemd-journal11:40:492
53859970,1cyclictest0-21swapper/210:05:022
53809974,2cyclictest275-21systemd-journal11:10:001
53809973,3cyclictest658-21snmpd10:15:561
53809973,3cyclictest504-21dbus-daemon10:55:001
53809973,3cyclictest275-21systemd-journal08:15:011
53779974,2cyclictest275-21systemd-journal11:06:130
53779973,3cyclictest9430-21sshd09:56:480
53779973,3cyclictest658-21snmpd08:55:260
53779973,3cyclictest275-21systemd-journal10:39:020
53779973,3cyclictest275-21systemd-journal09:50:160
53779971,3cyclictest560-21gdbus12:30:000
53779970,4cyclictest24206-21dump-pmu-power07:50:010
53779970,1cyclictest32395-21ssh12:07:420
53779970,1cyclictest32395-21ssh12:07:420
4478270,0sleep20-21swapper/211:11:412
24666270,0sleep00-21swapper/009:27:110
20613270,0sleep30-21swapper/311:01:533
18075270,0sleep10-21swapper/109:42:541
17347270,0sleep20-21swapper/209:22:572
53899966,0cyclictest0-21swapper/309:12:253
53899965,1cyclictest34-21ksoftirqd/312:00:013
53899965,1cyclictest34-21ksoftirqd/307:15:013
53899963,2cyclictest9018-21sh10:35:183
53899963,2cyclictest7321-21expr10:15:133
53899963,2cyclictest658-21snmpd07:20:353
53899963,2cyclictest5980-21ssh11:32:113
53899963,2cyclictest504-21dbus-daemon07:45:013
53899963,2cyclictest31640-21sh11:47:463
53899963,2cyclictest29734-21ssh11:07:323
53899963,2cyclictest28895-21acpi08:00:123
53899963,2cyclictest275-21systemd-journal11:26:113
53899963,2cyclictest275-21systemd-journal07:35:313
53899963,2cyclictest24326-21sh09:46:063
53899963,1cyclictest0-21swapper/311:55:573
53899962,3cyclictest9990-21cat08:30:113
53899962,3cyclictest937-21hostname10:50:143
53899962,3cyclictest658-21snmpd12:25:023
53899962,3cyclictest658-21snmpd11:21:153
53899962,3cyclictest658-21snmpd09:15:143
53899962,3cyclictest658-21snmpd08:50:143
53899962,3cyclictest658-21snmpd08:47:083
53899962,3cyclictest658-21snmpd08:29:283
53899962,3cyclictest504-21dbus-daemon09:05:003
53899962,3cyclictest3715-21basename12:10:103
53899962,3cyclictest32651-21expr10:30:143
53899962,3cyclictest275-21systemd-journal09:06:483
53899962,3cyclictest24047-21cut10:25:143
53899962,3cyclictest22910-21cat07:45:153
53899962,3cyclictest22031-21cat08:55:153
53899962,3cyclictest19848-21cat11:40:203
53899962,3cyclictest1643-21sed11:10:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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