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2025-12-17 - 19:52
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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 rackeslot8.osadl.org (updated Wed Dec 17, 2025 12:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3557811993228,1cyclictest0-21swapper/310:05:003
355781199251,20cyclictest3952203-21sleep12:15:003
3557811992420,1cyclictest0-21swapper/309:44:593
3557811992320,1cyclictest0-21swapper/311:15:013
3557811992320,1cyclictest0-21swapper/308:05:003
355781199231,8cyclictest3650061-21sleep08:20:013
3557811992118,1cyclictest0-21swapper/312:05:003
3557811992017,1cyclictest0-21swapper/312:40:013
355781199201,13cyclictest3882034-21taskset11:20:013
3557811991916,1cyclictest0-21swapper/309:05:013
3557811991916,1cyclictest0-21swapper/308:50:133
3557811991916,1cyclictest0-21swapper/307:35:183
3557811991915,1cyclictest0-21swapper/308:30:013
355781199191,13cyclictest3943015-21taskset12:05:173
355781199191,13cyclictest3564542-21chrt07:15:013
307598190,4rtkit-daemon0-21swapper/211:05:072
3557811991815,1cyclictest0-21swapper/312:30:013
3557811991815,1cyclictest0-21swapper/312:20:003
3557811991815,1cyclictest0-21swapper/308:45:173
355781199181,13cyclictest3862312-21turbostat11:05:013
355781199181,13cyclictest3611838-21taskset07:50:123
355781199181,12cyclictest3727535-21turbostat09:19:593
355781199176,7cyclictest3894658-21turbostat11:30:003
355781199176,7cyclictest38625522sleep311:05:113
3557811991714,1cyclictest0-21swapper/310:30:233
3557811991714,1cyclictest0-21swapper/309:30:003
3557811991713,1cyclictest0-21swapper/310:50:003
355781199171,13cyclictest3791834-21chrt10:10:133
355781199171,13cyclictest3791834-21chrt10:10:123
355781199171,12cyclictest3790694-21taskset10:05:193
355781199171,12cyclictest3744921-21taskset09:30:173
355781199171,12cyclictest3708290-21taskset09:05:123
355781199171,11cyclictest3766178-21taskset09:50:003
3557811991613,1cyclictest0-21swapper/312:20:143
3557811991613,1cyclictest0-21swapper/312:20:133
3557811991612,2cyclictest0-21swapper/310:00:013
355781199161,12cyclictest3849330-21chrt10:53:013
355781199161,12cyclictest3810626-21taskset10:22:543
355781199161,12cyclictest3765965-21sleep09:50:003
355781199161,12cyclictest3650497-21taskset08:20:123
355781199161,12cyclictest3585789-21taskset07:30:123
355781199161,11cyclictest3669793-21taskset08:35:083
355781199161,11cyclictest3579346-21taskset07:25:063
355781199160,12cyclictest3663574-21chrt08:30:143
307598160,5rtkit-daemon217-21plymouthd11:15:242
39010362150,10sleep21-21systemd11:34:592
37559752152,6sleep03758054-21tr09:40:180
3557811991513,1cyclictest0-21swapper/310:55:183
3557811991512,1cyclictest0-21swapper/311:40:213
3557811991512,1cyclictest0-21swapper/307:40:183
355781199151,12cyclictest3907130-21chrt11:36:013
355781199151,12cyclictest3701573-21taskset08:59:593
355781199151,12cyclictest3611368-21chrt07:47:423
355781199151,11cyclictest3932668-21chrt11:55:283
355781199151,11cyclictest3925777-21taskset11:50:183
355781199151,11cyclictest3900746-21chrt11:31:153
355781199151,11cyclictest3817172-21turbostat10:30:013
355781199151,11cyclictest3752879-21chrt09:37:193
355781199151,11cyclictest3714650-21chrt09:10:063
355781199151,11cyclictest3682044-21taskset08:40:363
355781199151,11cyclictest3572983-21taskset07:20:013
355781199151,11cyclictest3563978-21taskset07:13:083
355781199150,12cyclictest3977510-21chrt12:31:103
355781199150,12cyclictest3919937-21chrt11:46:223
355781199150,12cyclictest3835685-21taskset10:40:213
307598150,4rtkit-daemon714-21snmpd12:32:101
3557811991412,1cyclictest0-21swapper/307:55:193
355781199141,11cyclictest3888014-21taskset11:22:143
355781199141,11cyclictest3804153-21chrt10:17:143
3557811991411,1cyclictest0-21swapper/309:20:193
355781199141,10cyclictest3636161-21taskset08:05:183
355781199140,12cyclictest3643260-21chrt08:10:223
355781199140,11cyclictest3829636-21taskset10:35:383
39238362130,3sleep014-21ksoftirqd/011:50:160
37087082130,10sleep23709643-21sed09:05:162
307598130,8rtkit-daemon3929491-21cut11:55:161
307598130,8rtkit-daemon3675560-21grep08:35:232
36042702121,8sleep13604328-21ntp_states07:40:211
39586042111,7sleep23958607-21cron12:19:592
37793732116,2sleep20-21swapper/210:00:152
37714652110,8sleep13766191-21/usr/sbin/munin09:50:201
37602092110,8sleep13761108-21sed09:45:161
35975902111,7sleep13597698-21threads07:35:231
307598110,7rtkit-daemon714-21snmpd07:25:202
307598110,7rtkit-daemon3256-21sendmail-mta08:52:112
307598110,7rtkit-daemon217-21plymouthd08:13:252
307598110,6rtkit-daemon3598295-21file07:39:332
307598110,6rtkit-daemon3564464-21acpi07:15:002
307598110,6rtkit-daemon3256-21sendmail-mta08:55:252
39488672100,7sleep03950977-21cut12:10:170
39410892100,7sleep23943014-21grep12:05:172
36312302101,7sleep13631253-21/usr/sbin/munin08:05:131
307598100,6rtkit-daemon3576009-21kthreadcore07:20:182
307598100,6rtkit-daemon3256-21sendmail-mta08:23:552
307598100,6rtkit-daemon3256-21sendmail-mta07:51:562
307598100,6rtkit-daemon316-21systemd-udevd07:45:432
307598100,6rtkit-daemon0-21swapper/112:04:281
307598100,5rtkit-daemon3791546-21cron10:10:002
307598100,4rtkit-daemon217-21plymouthd10:20:362
307598100,3rtkit-daemon3564310-21munin-node11:02:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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