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2025-12-02 - 15:23
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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 rack1slot3.osadl.org (updated Tue Dec 02, 2025 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
409267699140,13cyclictest0-21swapper/311:50:143
409267699120,11cyclictest0-21swapper/308:55:013
409267699119,1cyclictest0-21swapper/312:25:133
4092676991111,0cyclictest69450irq/121-eno111:25:123
4092676991111,0cyclictest0-21swapper/311:10:153
4092676991111,0cyclictest0-21swapper/309:45:133
4092676991111,0cyclictest0-21swapper/307:50:103
4092676991110,1cyclictest0-21swapper/309:25:133
4092676991110,0cyclictest0-21swapper/307:35:013
409267699110,8cyclictest0-21swapper/309:55:173
409267699110,11cyclictest0-21swapper/311:15:213
409267699110,10cyclictest69450irq/121-eno112:35:163
409267699110,10cyclictest69450irq/121-eno112:11:423
409267699110,10cyclictest69450irq/121-eno111:05:133
409267699110,10cyclictest0-21swapper/312:30:143
409267699110,10cyclictest0-21swapper/311:00:143
409267699110,10cyclictest0-21swapper/310:55:143
409267699110,10cyclictest0-21swapper/309:00:003
409267699109,1cyclictest69450irq/121-eno111:35:143
409267699109,1cyclictest69450irq/121-eno110:00:113
409267699109,1cyclictest0-21swapper/307:15:013
409267699109,0cyclictest0-21swapper/310:05:143
409267699108,1cyclictest0-21swapper/307:55:183
4092676991010,0cyclictest69450irq/121-eno112:05:163
4092676991010,0cyclictest69450irq/121-eno110:50:313
4092676991010,0cyclictest69450irq/121-eno109:21:043
4092676991010,0cyclictest0-21swapper/310:45:133
4092676991010,0cyclictest0-21swapper/310:26:333
4092676991010,0cyclictest0-21swapper/309:15:133
409267699100,9cyclictest69450irq/121-eno112:15:203
409267699100,9cyclictest69450irq/121-eno111:30:143
409267699100,9cyclictest69450irq/121-eno108:25:183
409267699100,9cyclictest0-21swapper/310:10:203
409267699100,10cyclictest0-21swapper/308:05:203
409267699100,0cyclictest0-21swapper/310:45:003
409267699100,0cyclictest0-21swapper/310:20:133
409267699100,0cyclictest0-21swapper/308:45:153
409267699100,0cyclictest0-21swapper/307:15:183
40926769999,0cyclictest69450irq/121-eno112:20:223
40926769999,0cyclictest69450irq/121-eno111:55:143
40926769999,0cyclictest69450irq/121-eno111:40:163
40926769999,0cyclictest69450irq/121-eno110:35:193
40926769999,0cyclictest69450irq/121-eno110:15:173
40926769999,0cyclictest69450irq/121-eno109:40:263
40926769999,0cyclictest69450irq/121-eno108:30:183
40926769999,0cyclictest69450irq/121-eno108:15:153
40926769999,0cyclictest69450irq/121-eno108:00:033
40926769999,0cyclictest69450irq/121-eno107:45:123
40926769999,0cyclictest0-21swapper/307:35:193
40926769990,8cyclictest69450irq/121-eno107:29:253
40926769990,8cyclictest0-21swapper/309:50:133
40926769990,8cyclictest0-21swapper/308:10:183
40926769990,8cyclictest0-21swapper/307:20:183
40926769990,0cyclictest0-21swapper/310:30:123
40926769990,0cyclictest0-21swapper/308:45:003
40926769988,0cyclictest69450irq/121-eno112:00:163
40926769988,0cyclictest69450irq/121-eno111:20:113
40926769988,0cyclictest69450irq/121-eno108:38:193
40926769988,0cyclictest0-21swapper/311:45:143
40926769980,0cyclictest0-21swapper/308:25:013
40926769977,0cyclictest69450irq/121-eno109:35:133
40926769977,0cyclictest0-21swapper/309:05:193
40926769970,6cyclictest69450irq/121-eno109:10:143
40926769966,0cyclictest0-21swapper/309:30:293
40926769954,0cyclictest0-21swapper/307:40:123
4091318251,2sleep30-21swapper/307:05:183
40926769941,2cyclictest0-21swapper/309:00:133
4091160241,1sleep20-21swapper/207:05:172
4192759230,2sleep04192913-21grep11:15:180
4177511230,1sleep14177537-21apt-get10:40:131
4169865230,2sleep04169134-21/usr/sbin/munin10:20:190
4142425230,2sleep24142489-21cat09:15:212
4138402230,2sleep04138540-21cpu09:05:140
4128198230,1sleep14128217-21apt-get08:40:021
4090899231,0sleep00-21swapper/007:05:150
4090858231,1sleep10-21swapper/107:05:041
4191677220,0sleep00-21swapper/011:13:090
4184419220,1sleep24184545-21ntp_states10:55:182
4176853220,1sleep00-21swapper/010:36:360
4175844220,1sleep24175406-21/usr/sbin/munin10:35:182
4167470220,1sleep14167554-21irqstats10:15:191
4165130220,0sleep20-21swapper/210:10:162
4162576220,0sleep04162352-21apt-get10:05:010
4156496220,1sleep24156743-21/usr/sbin/munin09:50:142
4155710220,0sleep20-21swapper/209:46:552
4153140220,1sleep24122163-21kworker/u16:0+xprtiod09:40:262
4139975220,1sleep24139994-21/usr/sbin/munin09:10:002
4136409220,1sleep00-21swapper/009:00:140
4131074220,1sleep00-21swapper/008:45:200
4126286220,1sleep14126342-21latency_hist08:35:001
4118979220,1sleep14119277-21df08:15:161
4118946220,1sleep00-21swapper/008:15:150
4111511220,0sleep10-21swapper/107:55:231
4107252220,1sleep14107526-21df_inode07:45:141
4105863220,1sleep00-21swapper/007:40:170
31281220,0sleep00-21swapper/012:30:580
23664220,0sleep00-21swapper/012:15:140
22892220,0sleep00-21swapper/012:10:420
17278220,1sleep017549-21df_inode12:00:130
11075220,1sleep00-21swapper/011:45:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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