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2025-11-26 - 21:08
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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 Wed Nov 26, 2025 12:43:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12777899140,12cyclictest0-21swapper/307:10:143
127778991312,0cyclictest0-21swapper/308:05:123
12777899130,11cyclictest0-21swapper/311:55:133
12777899130,11cyclictest0-21swapper/310:15:133
12777899130,11cyclictest0-21swapper/310:00:123
127778991210,1cyclictest0-21swapper/309:50:133
12777899120,1cyclictest0-21swapper/309:50:023
12777899120,11cyclictest69450irq/121-eno109:02:483
12777899120,11cyclictest0-21swapper/309:55:123
12777899120,10cyclictest0-21swapper/307:30:123
127778991111,0cyclictest0-21swapper/311:40:133
127778991111,0cyclictest0-21swapper/310:10:133
127778991110,0cyclictest69450irq/121-eno111:18:383
12777899110,4cyclictest0-21swapper/307:15:143
12777899110,10cyclictest69450irq/121-eno109:23:493
12777899110,10cyclictest0-21swapper/312:05:183
12777899110,10cyclictest0-21swapper/311:25:203
12777899110,10cyclictest0-21swapper/311:06:503
12777899110,10cyclictest0-21swapper/309:10:213
12777899110,10cyclictest0-21swapper/307:20:243
12777899110,0cyclictest0-21swapper/310:10:013
12777899110,0cyclictest0-21swapper/308:20:133
127778991010,0cyclictest69450irq/121-eno112:00:163
127778991010,0cyclictest69450irq/121-eno111:21:143
127778991010,0cyclictest69450irq/121-eno111:00:203
127778991010,0cyclictest69450irq/121-eno110:35:133
127778991010,0cyclictest69450irq/121-eno108:55:133
127778991010,0cyclictest69450irq/121-eno108:45:483
127778991010,0cyclictest0-21swapper/312:30:183
127778991010,0cyclictest0-21swapper/310:55:163
127778991010,0cyclictest0-21swapper/310:45:123
127778991010,0cyclictest0-21swapper/308:10:003
12777899100,9cyclictest69450irq/121-eno112:25:153
12777899100,9cyclictest69450irq/121-eno112:15:183
12777899100,9cyclictest69450irq/121-eno111:45:173
12777899100,9cyclictest69450irq/121-eno109:41:103
12777899100,9cyclictest0-21swapper/311:55:013
12777899100,9cyclictest0-21swapper/308:30:013
12777899100,9cyclictest0-21swapper/308:15:123
12777899100,10cyclictest0-21swapper/308:45:013
12777899100,0cyclictest0-21swapper/311:10:193
12777899100,0cyclictest0-21swapper/309:05:133
1277789999,0cyclictest69450irq/121-eno112:20:053
1277789999,0cyclictest69450irq/121-eno111:35:173
1277789999,0cyclictest69450irq/121-eno110:34:573
1277789999,0cyclictest69450irq/121-eno108:32:563
1277789999,0cyclictest69450irq/121-eno107:42:483
1277789999,0cyclictest0-21swapper/312:10:213
1277789999,0cyclictest0-21swapper/309:20:003
1277789999,0cyclictest0-21swapper/308:35:163
1277789998,1cyclictest69450irq/121-eno110:20:123
1277789998,0cyclictest0-21swapper/309:35:123
1277789990,8cyclictest69450irq/121-eno112:35:163
1277789990,8cyclictest0-21swapper/309:25:243
1277789988,0cyclictest0-21swapper/308:00:133
1277789988,0cyclictest0-21swapper/307:35:123
1277789980,7cyclictest69450irq/121-eno110:26:073
1277789980,0cyclictest0-21swapper/308:00:003
1277789977,0cyclictest69450irq/121-eno110:42:133
1277789970,6cyclictest69450irq/121-eno110:54:263
1277789970,6cyclictest69450irq/121-eno107:50:423
1277789966,0cyclictest69450irq/121-eno111:34:353
1277789960,1cyclictest0-21swapper/309:30:113
1277789960,1cyclictest0-21swapper/307:45:133
1277789950,0cyclictest0-21swapper/308:50:113
1277789950,0cyclictest0-21swapper/307:25:093
126753251,2sleep30-21swapper/307:05:193
127521242,1sleep20-21swapper/207:08:452
125714242,1sleep10-21swapper/107:05:001
244058230,0sleep00-21swapper/011:52:060
224862230,1sleep00-21swapper/011:05:540
200160230,0sleep10-21swapper/110:09:331
127320231,1sleep00-21swapper/007:06:070
261976220,0sleep00-21swapper/012:35:160
257664220,1sleep0257773-21latency12:25:150
240928220,1sleep0241012-21irqstats11:45:170
231586220,1sleep1231588-21ssh11:22:371
229760220,1sleep10-21swapper/111:20:001
213035220,1sleep1213061-21apt-get10:40:151
212390220,1sleep00-21swapper/010:36:480
200217220,1sleep2200238-21munin-run10:10:012
192771220,1sleep0192920-21sh09:50:180
189429220,0sleep00-21swapper/009:41:380
185620220,1sleep2185624-21ssh09:33:542
184845220,0sleep00-21swapper/009:30:320
179675220,1sleep1179758-21date09:20:001
174179220,1sleep00-21swapper/009:05:150
173496220,0sleep20-21swapper/209:05:012
171561220,1sleep2171574-21cron09:00:012
164960220,1sleep0165130-21python308:40:210
163016220,1sleep00-21swapper/008:35:170
162223220,1sleep2162249-21apt-get08:35:112
154200220,0sleep20-21swapper/208:13:492
149399220,1sleep00-21swapper/008:00:190
143544220,1sleep00-21swapper/007:45:180
134179220,1sleep00-21swapper/007:25:010
129593220,1sleep0129819-21munin-node07:15:000
128185220,1sleep00-21swapper/007:10:160
263142210,0sleep10-21swapper/112:38:491
261429210,0sleep20-21swapper/212:35:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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