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2026-06-04 - 14:22
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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
Characteristics of the 100 highest latencies:
System rack1slot3.osadl.org (updated Thu Jun 04, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3810299140,12cyclictest0-21swapper/307:15:133
3810299140,11cyclictest0-21swapper/309:40:133
38102991311,1cyclictest0-21swapper/312:20:133
38102991311,1cyclictest0-21swapper/309:45:123
3810299130,12cyclictest0-21swapper/307:10:113
3810299130,11cyclictest0-21swapper/311:30:123
3810299130,11cyclictest0-21swapper/309:05:113
38102991210,1cyclictest0-21swapper/310:55:113
38102991210,1cyclictest0-21swapper/308:35:133
3810299120,11cyclictest0-21swapper/310:20:163
3810299120,11cyclictest0-21swapper/310:10:163
3810299120,11cyclictest0-21swapper/308:10:123
3810299120,10cyclictest0-21swapper/308:50:123
3810299119,1cyclictest0-21swapper/309:00:113
3810299118,1cyclictest0-21swapper/308:15:113
38102991110,0cyclictest0-21swapper/311:50:113
38102991110,0cyclictest0-21swapper/308:20:123
3810299110,10cyclictest0-21swapper/311:55:153
3810299110,10cyclictest0-21swapper/309:50:163
3810299110,10cyclictest0-21swapper/309:30:013
3810299110,10cyclictest0-21swapper/308:40:163
3810299110,0cyclictest0-21swapper/312:10:133
3810299109,0cyclictest0-21swapper/310:35:003
3810299100,9cyclictest0-21swapper/311:15:113
3810299100,9cyclictest0-21swapper/307:36:333
3810299100,0cyclictest0-21swapper/311:05:183
3810299100,0cyclictest0-21swapper/309:55:293
381029999,0cyclictest0-21swapper/312:35:013
381029999,0cyclictest0-21swapper/311:12:443
381029999,0cyclictest0-21swapper/308:00:013
381029998,0cyclictest0-21swapper/309:36:193
381029990,8cyclictest0-21swapper/309:10:173
381029990,8cyclictest0-21swapper/307:55:003
381029990,0cyclictest0-21swapper/310:45:213
381029990,0cyclictest0-21swapper/310:40:173
381029990,0cyclictest0-21swapper/308:30:133
381029988,0cyclictest0-21swapper/312:02:113
381029988,0cyclictest0-21swapper/311:35:163
381029988,0cyclictest0-21swapper/308:05:173
381029988,0cyclictest0-21swapper/308:00:193
381029980,0cyclictest0-21swapper/308:50:013
381029980,0cyclictest0-21swapper/307:50:003
37243281,4sleep30-21swapper/307:05:193
381029977,0cyclictest0-21swapper/307:20:113
381029976,0cyclictest0-21swapper/312:37:583
381029966,0cyclictest0-21swapper/312:05:223
381029966,0cyclictest0-21swapper/311:40:183
381029966,0cyclictest0-21swapper/311:00:113
381029966,0cyclictest0-21swapper/310:25:123
381029966,0cyclictest0-21swapper/310:00:113
381029966,0cyclictest0-21swapper/308:55:173
381029965,0cyclictest0-21swapper/311:45:113
381029965,0cyclictest0-21swapper/310:05:163
381029964,1cyclictest0-21swapper/312:15:123
381029955,0cyclictest0-21swapper/311:25:143
381029955,0cyclictest0-21swapper/310:35:163
381029955,0cyclictest0-21swapper/310:15:193
381029954,0cyclictest0-21swapper/309:20:133
381029950,4cyclictest87651-21chrt09:15:113
381029950,2cyclictest0-21swapper/307:25:123
106447253,1sleep136-21ksoftirqd/110:00:001
381029944,0cyclictest0-21swapper/311:20:193
381029944,0cyclictest0-21swapper/309:30:523
381029944,0cyclictest0-21swapper/308:25:513
381029944,0cyclictest0-21swapper/307:30:113
381029940,3cyclictest50870-21chrt07:40:043
381029940,3cyclictest128595-21chrt10:50:163
381029940,2cyclictest0-21swapper/312:25:113
36101241,1sleep10-21swapper/107:05:021
128706240,3sleep0128879-21sed10:50:190
93973230,1sleep293999-21apt-get09:30:122
68877230,2sleep268384-21/usr/sbin/munin08:25:162
56669230,2sleep156829-21grep07:55:121
36312231,1sleep00-21swapper/007:05:130
36299231,1sleep20-21swapper/207:05:032
156803230,1sleep2156821-21munin-run12:00:022
119237230,1sleep2119263-21apt-get10:30:112
115204230,2sleep0115498-21df_inode10:20:120
115069230,1sleep2115095-21apt-get10:20:102
113120230,2sleep1113390-21sh10:15:131
102978230,2sleep00-21swapper/009:50:140
98273220,1sleep098544-21df_inode09:40:140
85698220,0sleep10-21swapper/109:10:131
77713220,1sleep277862-21latency_hist08:50:012
65505220,1sleep165797-21grep08:15:181
56361220,1sleep156415-21cut07:55:001
53767220,0sleep00-21swapper/007:45:200
52849220,0sleep20-21swapper/207:45:142
51313220,1sleep151397-21irqstats07:40:161
48338220,1sleep248362-21perf07:35:012
42258222,0sleep00-21swapper/007:15:570
171424220,1sleep0171438-21munin-run12:35:010
165882220,0sleep00-21swapper/012:20:160
163351220,1sleep10-21swapper/112:15:131
160266220,1sleep1160451-21users12:05:201
157077220,0sleep10-21swapper/112:00:121
143631220,0sleep20-21swapper/211:25:182
136320220,1sleep1136617-21df11:10:131
135943220,1sleep10-21swapper/111:10:011
134578220,1sleep0134731-21memory11:05:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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