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2026-01-08 - 22:33
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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 Thu Jan 08, 2026 12:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3852780992422,1cyclictest0-21swapper/308:50:003
3852780992421,1cyclictest0-21swapper/311:20:223
3852780992420,2cyclictest61409-21turbostat12:35:013
3852780992220,1cyclictest0-21swapper/311:05:133
385278099211,15cyclictest3990998-21chrt09:00:013
385278099203,13cyclictest4139448-21turbostat11:05:003
3852780992017,1cyclictest0-21swapper/309:05:113
3852780992017,1cyclictest0-21swapper/308:40:013
385278099200,17cyclictest3906366-21turbostat07:50:013
3852780991916,1cyclictest0-21swapper/309:25:233
3852780991916,1cyclictest0-21swapper/309:20:133
3852780991816,1cyclictest0-21swapper/312:25:013
3852780991816,1cyclictest0-21swapper/310:35:163
3852780991815,1cyclictest0-21swapper/310:50:163
3852780991815,1cyclictest0-21swapper/310:20:203
3852780991815,1cyclictest0-21swapper/310:15:153
3852780991815,1cyclictest0-21swapper/307:15:003
385278099180,11cyclictest39847692sleep308:55:163
3852780991714,1cyclictest0-21swapper/311:55:003
3852780991714,1cyclictest0-21swapper/309:45:163
3852780991714,1cyclictest0-21swapper/307:15:033
3852780991713,1cyclictest0-21swapper/312:30:003
385278099171,12cyclictest4100509-21taskset10:30:013
385278099170,14cyclictest3939018-21turbostat08:20:013
41197842161,3sleep00-21swapper/010:45:100
3852780991614,1cyclictest0-21swapper/307:25:213
3852780991613,1cyclictest0-21swapper/312:10:003
3852780991613,1cyclictest0-21swapper/310:25:173
3852780991613,1cyclictest0-21swapper/309:35:233
3852780991613,1cyclictest0-21swapper/308:40:123
3852780991613,1cyclictest0-21swapper/307:35:143
385278099161,12cyclictest67823-21turbostat12:40:003
385278099161,12cyclictest4172371-21chrt11:30:123
385278099161,12cyclictest4171375-21chrt11:25:363
385278099161,12cyclictest4158917-21turbostat11:19:593
385278099161,12cyclictest4152193-21chrt11:11:133
385278099161,12cyclictest4062054-21taskset10:00:033
385278099161,12cyclictest3925799-21chrt08:05:193
385278099161,12cyclictest22310-21chrt12:00:263
385278099161,12cyclictest15551-21taskset11:55:223
385278099161,11cyclictest4190928-21turbostat11:44:593
385278099160,12cyclictest4132972-21taskset10:59:543
3852780991512,1cyclictest0-21swapper/311:45:173
3852780991512,1cyclictest0-21swapper/310:45:133
3852780991512,1cyclictest0-21swapper/309:15:163
3852780991512,1cyclictest0-21swapper/308:30:143
3852780991512,1cyclictest0-21swapper/308:20:153
385278099151,12cyclictest4080981-21chrt10:14:383
385278099151,12cyclictest3951613-21taskset08:27:543
385278099151,11cyclictest4184228-21chrt11:36:303
385278099151,11cyclictest4061415-21taskset09:55:143
385278099151,11cyclictest4060804-21taskset09:50:343
385278099151,11cyclictest4034926-21taskset09:30:223
385278099151,11cyclictest3984095-21sleep08:55:003
385278099151,11cyclictest3932205-21taskset08:10:233
385278099151,11cyclictest3919384-21taskset08:00:093
385278099151,11cyclictest3918348-21taskset07:55:213
385278099151,11cyclictest3906586-21taskset07:50:033
385278099151,11cyclictest3893750-21taskset07:40:053
385278099151,11cyclictest34629-21taskset12:10:203
385278099150,12cyclictest4119488-21taskset10:44:573
3852780991412,1cyclictest0-21swapper/312:15:103
385278099141,11cyclictest4074277-21taskset10:06:013
385278099141,11cyclictest3873914-21chrt07:22:463
385278099140,11cyclictest4042197-21taskset09:40:053
385278099140,11cyclictest4042197-21taskset09:40:043
385278099140,11cyclictest4003783-21taskset09:10:033
385278099140,11cyclictest3886579-21taskset07:30:413
385278099140,11cyclictest3886579-21taskset07:30:403
40234282131,9sleep04023986-21/usr/sbin/munin09:25:160
39534292131,3sleep134-21ksoftirqd/108:30:191
38679672131,2sleep00-21swapper/007:20:130
38523322130,2sleep30-21swapper/307:06:013
40539832120,9sleep24054085-21sed09:45:212
307598120,7rtkit-daemon34605-21ntp_states12:10:202
293242121,3sleep129357-21apt-get12:10:111
41780992111,7sleep14178293-21latency_hist11:35:001
41580712110,4sleep04158196-21python311:15:200
40393962110,1sleep10-21swapper/109:35:181
39712412110,8sleep01-21systemd08:44:590
38947852110,8sleep03895875-21cut07:40:150
307598110,7rtkit-daemon714-21snmpd12:28:432
307598110,7rtkit-daemon468-21systemd-logind12:36:441
307598110,7rtkit-daemon3906542-21latency_hist07:50:011
307598110,2rtkit-daemon217-21plymouthd11:00:152
290562111,2sleep10-21swapper/112:09:501
97952100,3sleep19809-21idleruntime-cro11:55:011
41845012100,7sleep04184583-21sed11:40:000
40763352100,2sleep20-21swapper/210:10:172
40163432100,7sleep24016474-21latency_hist09:20:012
38873762101,6sleep23887571-21smartctl07:35:132
307598100,7rtkit-daemon493-21gmain11:07:452
307598100,6rtkit-daemon714-21snmpd08:05:131
307598100,6rtkit-daemon3256-21sendmail-mta09:57:320
307598100,6rtkit-daemon3256-21sendmail-mta08:22:181
307598100,6rtkit-daemon3256-21sendmail-mta07:15:581
307598100,5rtkit-daemon3867999-21apt-get07:20:111
307598100,4rtkit-daemon3859299-21munin-node09:15:271
307598100,4rtkit-daemon3859299-21munin-node08:55:451
307598100,3rtkit-daemon217-21plymouthd12:24:592
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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