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2025-12-09 - 20:23
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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 09, 2025 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
408513099140,12cyclictest0-21swapper/311:40:143
408513099140,12cyclictest0-21swapper/310:35:153
408513099140,12cyclictest0-21swapper/308:40:133
4085130991313,0cyclictest0-21swapper/308:30:013
408513099130,2cyclictest0-21swapper/310:30:123
408513099130,1cyclictest0-21swapper/309:45:153
408513099130,12cyclictest0-21swapper/309:10:123
408513099120,1cyclictest0-21swapper/312:40:023
408513099120,1cyclictest0-21swapper/308:50:143
408513099120,1cyclictest0-21swapper/308:35:123
408513099120,11cyclictest69450irq/121-eno110:10:233
408513099120,11cyclictest0-21swapper/309:20:013
408513099120,11cyclictest0-21swapper/308:25:003
408513099120,11cyclictest0-21swapper/308:15:013
408513099120,11cyclictest0-21swapper/307:55:003
408513099119,1cyclictest0-21swapper/310:00:123
408513099119,0cyclictest0-21swapper/312:20:013
4085130991111,0cyclictest0-21swapper/307:40:143
4085130991110,1cyclictest0-21swapper/309:55:133
408513099110,11cyclictest0-21swapper/307:35:223
408513099110,10cyclictest69450irq/121-eno108:05:013
408513099110,10cyclictest0-21swapper/310:25:183
408513099109,1cyclictest0-21swapper/310:05:143
408513099109,0cyclictest69450irq/121-eno109:52:243
4085130991010,0cyclictest69450irq/121-eno112:00:493
4085130991010,0cyclictest69450irq/121-eno111:08:553
4085130991010,0cyclictest69450irq/121-eno109:40:263
4085130991010,0cyclictest0-21swapper/310:24:563
4085130991010,0cyclictest0-21swapper/309:25:133
4085130991010,0cyclictest0-21swapper/309:00:113
408513099100,9cyclictest69450irq/121-eno112:25:173
408513099100,9cyclictest69450irq/121-eno112:06:073
408513099100,9cyclictest69450irq/121-eno111:55:153
408513099100,9cyclictest69450irq/121-eno111:03:503
408513099100,9cyclictest69450irq/121-eno110:18:383
408513099100,9cyclictest0-21swapper/310:40:123
408513099100,9cyclictest0-21swapper/307:30:003
408513099100,10cyclictest0-21swapper/311:35:123
408513099100,0cyclictest0-21swapper/310:55:223
408513099100,0cyclictest0-21swapper/308:30:113
40851309999,0cyclictest69450irq/121-eno112:24:453
40851309999,0cyclictest69450irq/121-eno112:10:243
40851309999,0cyclictest69450irq/121-eno111:30:203
40851309999,0cyclictest69450irq/121-eno111:15:123
40851309999,0cyclictest69450irq/121-eno110:52:443
40851309999,0cyclictest69450irq/121-eno110:45:153
40851309999,0cyclictest69450irq/121-eno107:20:203
40851309999,0cyclictest0-21swapper/311:50:143
40851309999,0cyclictest0-21swapper/311:10:193
40851309999,0cyclictest0-21swapper/309:05:133
40851309999,0cyclictest0-21swapper/307:15:013
40851309990,8cyclictest69450irq/121-eno112:31:463
40851309990,8cyclictest0-21swapper/307:14:223
40851309990,0cyclictest0-21swapper/311:20:193
40851309988,0cyclictest69450irq/121-eno111:45:163
40851309988,0cyclictest69450irq/121-eno111:25:223
40851309988,0cyclictest69450irq/121-eno109:39:503
40851309988,0cyclictest0-21swapper/309:34:573
40851309986,1cyclictest0-21swapper/307:30:113
40851309976,1cyclictest0-21swapper/309:20:133
40851309976,1cyclictest0-21swapper/309:20:123
4098284260,1sleep00-21swapper/007:40:180
40851309966,0cyclictest69450irq/121-eno108:16:303
40851309966,0cyclictest69450irq/121-eno107:49:213
40851309966,0cyclictest0-21swapper/307:55:133
40851309960,0cyclictest0-21swapper/308:00:213
4084978261,2sleep30-21swapper/307:09:573
4086828250,0sleep10-21swapper/107:13:311
40851309955,0cyclictest69450irq/121-eno108:55:023
40851309954,0cyclictest0-21swapper/308:45:133
4084880250,1sleep10-21swapper/107:08:421
4173503240,1sleep04173507-21ssh10:47:300
4085902240,1sleep04086052-21ntp_states07:10:180
4083322240,2sleep04083348-21apt-get07:05:130
4161509230,1sleep04161535-21apt-get10:20:120
4132172230,1sleep14132187-21apt-get09:10:021
4112983230,2sleep24113016-21aten_r1power_cu08:20:112
4105310230,1sleep24105336-21apt-get08:00:152
4083475231,1sleep20-21swapper/207:05:152
7046220,1sleep20-21swapper/211:55:002
4193677220,1sleep14193852-21python311:35:181
4193343220,1sleep24193495-21memory11:35:152
4192223220,0sleep00-21swapper/011:31:300
4187603220,1sleep24187875-21sed11:20:222
4187396220,1sleep04187487-21ps11:20:210
4186096220,1sleep00-21swapper/011:17:530
4184176220,0sleep00-21swapper/011:14:240
4181654220,0sleep00-21swapper/011:05:320
4166717220,1sleep24166968-21users10:30:192
4151193220,1sleep04151464-21df_inode09:55:160
4149933220,1sleep14150166-21tail09:50:191
4148960220,1sleep00-21swapper/009:50:100
4140758220,1sleep24141037-21cstates09:30:162
4136851220,1sleep14137098-21diskstats09:20:231
4136851220,1sleep14137098-21diskstats09:20:221
4136383220,1sleep04136439-21/usr/sbin/munin09:20:010
4130506220,1sleep00-21swapper/009:05:120
4127527220,1sleep04127669-21switchtime08:55:240
4122587220,1sleep24122684-21sed08:45:012
4114895220,1sleep14114896-21/usr/sbin/munin08:25:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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