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2025-11-27 - 17:43
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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 Thu Nov 27, 2025 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81700991611,0cyclictest0-21swapper/308:00:013
8170099130,1cyclictest0-21swapper/307:36:293
8170099130,11cyclictest0-21swapper/309:30:143
81700991211,0cyclictest0-21swapper/311:50:123
81700991211,0cyclictest0-21swapper/308:09:563
8170099120,1cyclictest0-21swapper/310:00:113
8170099120,11cyclictest69450irq/121-eno109:00:143
81700991111,0cyclictest69450irq/121-eno112:25:123
81700991111,0cyclictest0-21swapper/311:10:123
81700991111,0cyclictest0-21swapper/308:30:123
81700991110,1cyclictest69450irq/121-eno107:45:113
81700991110,0cyclictest69450irq/121-eno111:35:183
81700991110,0cyclictest0-21swapper/309:45:123
81700991110,0cyclictest0-21swapper/308:35:103
81700991110,0cyclictest0-21swapper/308:35:103
81700991110,0cyclictest0-21swapper/308:20:103
8170099110,1cyclictest0-21swapper/311:25:153
8170099110,10cyclictest0-21swapper/311:00:133
8170099110,10cyclictest0-21swapper/310:25:193
8170099110,10cyclictest0-21swapper/308:25:113
8170099110,0cyclictest0-21swapper/311:40:133
8170099110,0cyclictest0-21swapper/310:10:143
8170099110,0cyclictest0-21swapper/308:55:183
8170099110,0cyclictest0-21swapper/307:20:123
8170099109,1cyclictest69450irq/121-eno108:54:123
8170099109,1cyclictest0-21swapper/312:30:133
81700991010,0cyclictest69450irq/121-eno112:21:363
81700991010,0cyclictest69450irq/121-eno112:08:113
81700991010,0cyclictest69450irq/121-eno111:05:173
81700991010,0cyclictest0-21swapper/307:40:143
8170099100,9cyclictest69450irq/121-eno110:32:493
8170099100,9cyclictest0-21swapper/310:40:223
8170099100,9cyclictest0-21swapper/309:55:193
8170099100,0cyclictest0-21swapper/311:45:143
8170099100,0cyclictest0-21swapper/309:40:133
817009999,0cyclictest69450irq/121-eno112:15:143
817009999,0cyclictest69450irq/121-eno109:54:073
817009999,0cyclictest69450irq/121-eno109:35:143
817009999,0cyclictest69450irq/121-eno108:45:013
817009999,0cyclictest0-21swapper/311:30:123
817009999,0cyclictest0-21swapper/310:05:213
817009998,1cyclictest0-21swapper/310:35:233
817009998,0cyclictest69450irq/121-eno110:45:173
817009998,0cyclictest0-21swapper/310:50:123
817009997,1cyclictest69450irq/121-eno107:30:123
817009988,0cyclictest69450irq/121-eno112:39:263
817009988,0cyclictest69450irq/121-eno111:15:133
817009988,0cyclictest69450irq/121-eno110:15:153
817009988,0cyclictest69450irq/121-eno109:14:343
817009988,0cyclictest69450irq/121-eno108:40:133
817009988,0cyclictest69450irq/121-eno108:10:143
817009988,0cyclictest69450irq/121-eno107:55:213
817009988,0cyclictest0-21swapper/312:10:133
817009988,0cyclictest0-21swapper/308:15:123
817009980,7cyclictest69450irq/121-eno111:55:153
817009980,7cyclictest69450irq/121-eno110:20:423
817009980,0cyclictest0-21swapper/307:50:013
817009977,0cyclictest69450irq/121-eno112:00:143
817009977,0cyclictest69450irq/121-eno109:05:113
817009977,0cyclictest0-21swapper/311:20:133
817009977,0cyclictest0-21swapper/307:15:123
817009966,0cyclictest0-21swapper/310:55:123
817009955,0cyclictest0-21swapper/309:15:203
817009955,0cyclictest0-21swapper/307:10:193
817009953,1cyclictest137640-21turbostat09:30:003
817009951,2cyclictest0-21swapper/309:20:123
817009950,4cyclictest0-21swapper/307:30:003
80031251,3sleep30-21swapper/307:05:173
81468242,1sleep20-21swapper/207:08:482
81328242,1sleep10-21swapper/107:06:591
153473240,3sleep0153625-21/usr/sbin/munin10:05:210
102216240,0sleep00-21swapper/008:00:100
91204230,0sleep00-21swapper/007:30:200
89759230,2sleep189902-21cat07:30:011
80771231,1sleep00-21swapper/007:05:220
191268230,1sleep2191439-21python311:35:202
190207231,1sleep2190353-21date11:35:012
97601220,0sleep097613-21apt-get07:50:010
83530220,1sleep20-21swapper/207:15:012
213072220,0sleep00-21swapper/012:28:230
211416220,1sleep10-21swapper/112:25:111
206597220,1sleep00-21swapper/012:11:490
205296220,1sleep2205561-21diskstats12:10:152
202652220,1sleep00-21swapper/012:03:530
177256220,1sleep00-21swapper/011:01:290
174481220,1sleep00-21swapper/010:55:210
162399220,1sleep00-21swapper/010:26:470
160676220,1sleep2160710-21munin-run10:25:012
153197220,1sleep2153350-21ntpq10:05:192
149099220,1sleep1149383-21head09:55:221
140609220,1sleep0140731-21ps09:35:150
139588220,1sleep1139726-21cat09:35:001
125761220,1sleep0125944-21latency_hist09:00:010
124201220,1sleep1124434-21cpuspeed_turbos08:55:131
114867220,1sleep1115021-21ntp_states08:30:161
99441210,0sleep10-21swapper/107:50:421
96104210,0sleep10-21swapper/107:45:141
95931210,0sleep00-21swapper/007:45:090
94550210,0sleep20-21swapper/207:40:172
94467210,0sleep10-21swapper/107:40:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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