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2025-12-02 - 23:12
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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 Tue Dec 02, 2025 12:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3878173993934,3cyclictest3937070-21sleep07:55:003
3878173993229,1cyclictest0-21swapper/309:40:013
3878173992522,1cyclictest0-21swapper/312:10:013
387817399236,8cyclictest154532sleep310:59:193
387817399220,2cyclictest778062sleep311:35:223
387817399220,16cyclictest41274552sleep310:06:243
387817399217,8cyclictest38841682sleep307:12:453
3878173992117,1cyclictest0-21swapper/309:30:013
387817399206,8cyclictest234152sleep311:03:553
387817399204,7cyclictest1445082sleep312:18:093
387817399200,10cyclictest4006370-21taskset08:47:573
387817399193,5cyclictest39055372sleep307:29:083
3878173991916,1cyclictest0-21swapper/311:40:193
3878173991916,1cyclictest0-21swapper/311:15:193
3878173991916,1cyclictest0-21swapper/310:10:233
387817399191,14cyclictest4088626-21chrt09:44:523
387817399191,14cyclictest3918275-21turbostat07:40:013
387817399190,14cyclictest4104837-21sleep09:55:013
41065632180,9sleep14108120-21kthreadcore09:55:161
387817399186,6cyclictest39871112sleep308:30:313
387817399184,7cyclictest1756632sleep312:35:363
387817399182,13cyclictest4177442-21turbostat10:40:003
3878173991815,1cyclictest0-21swapper/310:15:163
3878173991815,1cyclictest0-21swapper/309:49:343
387817399181,3cyclictest0-21swapper/309:00:133
387817399181,13cyclictest4031905-21turbostat09:10:013
387817399181,13cyclictest30075-21chrt11:05:353
387817399181,13cyclictest120598-21chrt12:03:533
387817399180,13cyclictest3924760-21taskset07:45:023
387817399180,10cyclictest4184353-21taskset10:42:143
40890682171,5sleep04089231-21diskstats09:45:130
387817399174,7cyclictest40002262sleep308:44:223
387817399173,8cyclictest40464072sleep309:15:523
387817399171,13cyclictest3943627-21sleep08:00:013
387817399171,12cyclictest4169365-21turbostat10:35:003
387817399171,12cyclictest4056260-21taskset09:24:593
387817399171,12cyclictest3886734-21taskset07:15:123
387817399171,12cyclictest159522-21taskset12:25:293
387817399171,12cyclictest136193-21chrt12:12:323
387817399170,7cyclictest39921242sleep308:35:193
387817399170,13cyclictest153418-21turbostat12:25:013
387817399165,1cyclictest0-21swapper/311:30:233
3878173991614,1cyclictest0-21swapper/307:25:003
387817399161,3cyclictest0-21swapper/311:55:133
387817399161,3cyclictest0-21swapper/310:50:123
387817399161,3cyclictest0-21swapper/310:00:123
387817399161,3cyclictest0-21swapper/309:55:113
387817399161,3cyclictest0-21swapper/308:00:113
3878173991613,1cyclictest0-21swapper/312:33:153
3878173991613,1cyclictest0-21swapper/308:19:223
387817399161,2cyclictest0-21swapper/311:20:123
387817399161,12cyclictest96492-21taskset11:49:203
387817399161,12cyclictest57500-21taskset11:25:153
387817399161,12cyclictest57500-21taskset11:25:143
387817399161,12cyclictest4151800-21taskset10:21:433
387817399161,12cyclictest4038302-21taskset09:11:133
387817399161,12cyclictest4018941-21chrt08:58:523
387817399161,12cyclictest4012485-21taskset08:51:223
387817399161,12cyclictest3974831-21taskset08:24:013
387817399161,12cyclictest104090-21chrt11:53:113
387817399161,11cyclictest3980851-21taskset08:25:323
387817399161,11cyclictest3955829-21chrt08:05:573
387817399160,4cyclictest0-21swapper/307:45:003
40262722155,7sleep24026993-21cut09:05:172
387817399151,3cyclictest383722chrt11:11:033
3878173991512,1cyclictest0-21swapper/309:32:243
387817399151,11cyclictest3911636-21chrt07:31:583
387817399151,10cyclictest4192112-21taskset10:46:323
387817399150,3cyclictest0-21swapper/310:25:143
387817399150,12cyclictest3962061-21chrt08:10:353
495872145,6sleep150730-21tr11:20:171
41527842140,6sleep14152788-21ssh10:23:581
38721202142,6sleep23872152-21apt-get07:05:152
721242130,10sleep172131-21sh11:34:391
40465802130,10sleep14046588-21ssh09:16:141
147598130,9rtkit-daemon166979-21ssh12:30:202
147598130,1rtkit-daemon0-21swapper/107:48:161
41434222120,8sleep14143430-21ssh10:16:011
41879822110,8sleep14189999-21grep10:45:191
41023212111,7sleep04102451-21grep09:50:230
40134252111,8sleep24013777-21cut08:55:192
39881462110,8sleep03988893-21cut08:35:170
39062822110,8sleep23906947-21cut07:30:182
368562110,3sleep037436-21grep11:10:220
147598110,8rtkit-daemon4039713-21seq09:14:302
147598110,7rtkit-daemon744-21runrttasks11:27:151
147598110,7rtkit-daemon744-21runrttasks11:27:141
147598110,7rtkit-daemon720-21snmpd10:51:091
147598110,7rtkit-daemon295-21systemd-journal08:09:421
147598110,5rtkit-daemon214-21plymouthd10:22:470
147598110,4rtkit-daemon214-21plymouthd09:34:310
1272142110,1sleep10-21swapper/112:05:281
1066562110,3sleep0108288-21kthreadcore11:55:180
1033062110,8sleep1103309-21sh11:51:271
706572100,7sleep070665-21ssh11:31:090
454282100,7sleep240370-21/usr/sbin/munin11:15:202
40193222102,4sleep04019344-21apt-get09:00:130
39994462100,7sleep23999510-21ps08:40:242
39689002101,5sleep13968933-21apt-get08:20:111
1591442100,7sleep0159371-21grep12:25:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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