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2026-05-08 - 17:22
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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 Fri May 08, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2132799132,10cyclictest0-21swapper/310:10:013
21327991311,1cyclictest0-21swapper/308:45:123
2132799130,11cyclictest0-21swapper/311:25:113
2132799130,11cyclictest0-21swapper/309:00:103
2132799130,11cyclictest0-21swapper/307:15:103
2132799122,0cyclictest0-21swapper/308:45:003
2132799120,1cyclictest0-21swapper/309:35:113
2132799120,11cyclictest0-21swapper/311:43:153
2132799120,11cyclictest0-21swapper/309:45:173
2132799120,11cyclictest0-21swapper/309:15:173
2132799120,0cyclictest0-21swapper/312:25:113
2132799116,1cyclictest0-21swapper/307:40:113
21327991111,0cyclictest0-21swapper/311:15:113
21327991111,0cyclictest0-21swapper/309:40:113
21327991111,0cyclictest0-21swapper/309:30:113
21327991111,0cyclictest0-21swapper/307:24:563
21327991110,0cyclictest0-21swapper/312:05:013
2132799110,9cyclictest0-21swapper/312:10:093
2132799110,11cyclictest0-21swapper/307:40:013
2132799110,10cyclictest0-21swapper/311:50:173
2132799110,10cyclictest0-21swapper/310:35:123
2132799109,0cyclictest0-21swapper/312:15:153
2132799109,0cyclictest0-21swapper/308:55:003
21327991010,0cyclictest0-21swapper/311:05:173
21327991010,0cyclictest0-21swapper/310:55:013
21327991010,0cyclictest0-21swapper/310:44:563
21327991010,0cyclictest0-21swapper/310:30:183
21327991010,0cyclictest0-21swapper/310:25:013
21327991010,0cyclictest0-21swapper/309:05:123
21327991010,0cyclictest0-21swapper/308:55:193
21327991010,0cyclictest0-21swapper/308:30:133
2132799100,0cyclictest0-21swapper/311:45:203
2132799100,0cyclictest0-21swapper/307:45:113
213279999,0cyclictest0-21swapper/311:10:113
213279999,0cyclictest0-21swapper/311:00:123
213279999,0cyclictest0-21swapper/310:55:113
213279999,0cyclictest0-21swapper/310:45:173
213279999,0cyclictest0-21swapper/309:10:153
213279999,0cyclictest0-21swapper/308:38:153
213279999,0cyclictest0-21swapper/308:25:183
213279998,0cyclictest0-21swapper/312:05:163
213279998,0cyclictest0-21swapper/309:54:263
213279998,0cyclictest0-21swapper/309:22:153
213279998,0cyclictest0-21swapper/308:20:153
213279998,0cyclictest0-21swapper/308:15:143
213279990,8cyclictest0-21swapper/311:30:123
213279990,0cyclictest0-21swapper/307:30:013
213279988,0cyclictest0-21swapper/312:30:133
213279988,0cyclictest0-21swapper/310:10:173
213279988,0cyclictest0-21swapper/309:55:173
213279988,0cyclictest0-21swapper/307:30:113
213279980,7cyclictest0-21swapper/311:55:113
213279980,7cyclictest0-21swapper/307:10:153
213279980,6cyclictest0-21swapper/311:20:123
19588281,4sleep30-21swapper/307:05:123
213279977,0cyclictest0-21swapper/312:23:153
213279977,0cyclictest0-21swapper/308:10:173
213279970,7cyclictest0-21swapper/311:40:013
213279970,0cyclictest0-21swapper/307:55:173
213279966,0cyclictest0-21swapper/312:37:353
213279966,0cyclictest0-21swapper/310:17:313
213279966,0cyclictest0-21swapper/308:05:183
213279966,0cyclictest0-21swapper/307:50:123
20317261,1sleep00-21swapper/007:05:170
38573250,3sleep038745-21smartctl07:50:160
213279955,0cyclictest0-21swapper/309:26:263
21028252,3sleep10-21swapper/107:07:551
213279944,0cyclictest0-21swapper/310:26:583
213279940,4cyclictest0-21swapper/308:03:463
20942242,1sleep20-21swapper/207:06:472
118191240,3sleep1118464-21df_inode11:05:131
213279933,0cyclictest0-21swapper/310:00:123
151698230,1sleep2151724-21apt-get12:25:112
147256230,2sleep0147458-21ls12:15:010
109174230,2sleep2109178-21cron10:45:012
80173220,1sleep180335-21missed_timers09:35:161
73450220,1sleep173717-21diskstats09:20:151
66801220,1sleep066809-21apt-get09:05:010
64869220,1sleep064897-21perf09:00:000
53105220,0sleep053131-21apt-get08:30:110
50807220,1sleep050808-21sshd08:23:140
48825220,1sleep00-21swapper/008:17:340
41337220,0sleep10-21swapper/107:59:541
37529220,1sleep037698-21sed07:50:000
29692220,1sleep229735-21latency_hist07:30:012
138643220,1sleep20-21swapper/211:55:012
131896220,0sleep00-21swapper/011:35:420
128470220,0sleep20-21swapper/211:30:122
126819220,1sleep1126902-21irqstats11:25:151
122320220,1sleep00-21swapper/011:15:130
121803220,1sleep2121807-21ssh11:13:472
117451220,0sleep00-21swapper/011:02:040
111659220,1sleep2111932-21df_inode10:50:132
105239220,1sleep1105265-21apt-get10:35:111
98722210,0sleep00-21swapper/010:20:010
98439210,0sleep20-21swapper/210:17:312
98202210,1sleep00-21swapper/010:15:250
97928210,0sleep10-21swapper/110:15:181
95308210,0sleep20-21swapper/210:10:152
94961210,0sleep00-21swapper/010:10:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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