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2025-12-07 - 00:40
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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 Sat Dec 06, 2025 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2310991310,1cyclictest0-21swapper/311:00:143
231099130,12cyclictest0-21swapper/312:25:153
231099130,12cyclictest0-21swapper/309:50:133
2310991211,1cyclictest0-21swapper/308:45:143
2310991210,1cyclictest0-21swapper/310:45:123
231099120,1cyclictest0-21swapper/311:40:133
231099120,11cyclictest69450irq/121-eno107:39:503
231099120,11cyclictest0-21swapper/311:30:203
231099120,11cyclictest0-21swapper/311:10:133
231099120,11cyclictest0-21swapper/310:05:003
231099120,11cyclictest0-21swapper/309:00:023
231099120,11cyclictest0-21swapper/307:55:153
231099120,11cyclictest0-21swapper/307:30:003
2310991111,0cyclictest69450irq/121-eno111:05:153
2310991111,0cyclictest69450irq/121-eno110:14:373
2310991111,0cyclictest69450irq/121-eno108:20:193
2310991110,0cyclictest69450irq/121-eno110:52:443
231099110,11cyclictest0-21swapper/312:35:353
231099110,11cyclictest0-21swapper/307:50:003
231099110,10cyclictest69450irq/121-eno110:55:213
231099110,10cyclictest69450irq/121-eno109:49:173
231099110,10cyclictest69450irq/121-eno109:43:433
231099110,10cyclictest0-21swapper/309:59:553
231099110,10cyclictest0-21swapper/309:35:153
231099110,10cyclictest0-21swapper/309:05:143
231099110,10cyclictest0-21swapper/309:00:203
231099110,10cyclictest0-21swapper/308:14:553
231099110,0cyclictest0-21swapper/308:50:253
231099109,1cyclictest69450irq/121-eno108:05:113
231099108,1cyclictest69450irq/121-eno112:20:123
2310991010,0cyclictest69450irq/121-eno111:45:353
2310991010,0cyclictest69450irq/121-eno111:15:173
2310991010,0cyclictest0-21swapper/311:55:123
2310991010,0cyclictest0-21swapper/307:15:003
231099100,9cyclictest69450irq/121-eno112:30:163
231099100,9cyclictest69450irq/121-eno111:25:353
231099100,9cyclictest0-21swapper/309:30:173
231099100,9cyclictest0-21swapper/309:10:143
231099100,10cyclictest0-21swapper/312:05:023
231099100,0cyclictest0-21swapper/310:35:183
231099100,0cyclictest0-21swapper/310:25:143
231099100,0cyclictest0-21swapper/307:20:123
23109999,0cyclictest69450irq/121-eno112:12:493
23109999,0cyclictest69450irq/121-eno112:09:093
23109999,0cyclictest69450irq/121-eno111:20:193
23109999,0cyclictest69450irq/121-eno110:40:223
23109999,0cyclictest69450irq/121-eno110:05:183
23109999,0cyclictest69450irq/121-eno109:15:443
23109999,0cyclictest69450irq/121-eno108:40:163
23109999,0cyclictest69450irq/121-eno107:40:163
23109999,0cyclictest0-21swapper/308:35:123
23109999,0cyclictest0-21swapper/308:35:023
23109999,0cyclictest0-21swapper/307:15:133
23109998,1cyclictest69450irq/121-eno110:15:133
23109990,8cyclictest69450irq/121-eno110:22:103
23109990,8cyclictest69450irq/121-eno109:27:583
23109990,0cyclictest0-21swapper/308:20:013
23109988,0cyclictest69450irq/121-eno111:50:193
23109988,0cyclictest69450irq/121-eno110:34:043
23109988,0cyclictest69450irq/121-eno109:20:173
23109980,8cyclictest0-21swapper/308:25:013
23109980,8cyclictest0-21swapper/308:25:013
23109977,0cyclictest69450irq/121-eno112:15:153
23109966,0cyclictest69450irq/121-eno107:50:193
23109966,0cyclictest0-21swapper/308:00:143
23109954,0cyclictest0-21swapper/307:31:263
23109950,4cyclictest69450irq/121-eno111:39:003
1851251,3sleep30-21swapper/307:06:023
1468250,3sleep2429-21/usr/sbin/munin07:05:212
137730253,2sleep0754-21snmpd12:35:400
540241,1sleep00-21swapper/007:05:160
1316241,1sleep10-21swapper/107:05:211
96193230,2sleep296285-21sh11:00:162
59573231,1sleep055183-21kworker/0:2+events09:35:040
24562230,1sleep024644-21irqstats08:05:150
136424230,1sleep1136450-21apt-get12:35:291
125924230,1sleep1125950-21apt-get12:10:111
108397230,2sleep1108594-21latency_hist11:30:021
98976220,1sleep199111-21basename11:05:191
94057220,0sleep00-21swapper/010:55:180
92077220,1sleep092159-21irqstats10:50:170
85365220,0sleep00-21swapper/010:35:040
76501220,1sleep176533-21ssh10:15:121
61633220,0sleep061659-21apt-get09:40:140
57101220,1sleep057303-21wc09:30:010
4105220,0sleep20-21swapper/207:14:462
37659220,1sleep137855-21cpuspeed_turbos08:40:141
35051220,0sleep00-21swapper/008:30:440
30326220,1sleep030410-21irqstats08:20:160
28751220,1sleep00-21swapper/008:15:200
133961222,0sleep00-21swapper/012:29:160
13095220,1sleep113264-21ntp_kernel_pll_07:35:181
126893220,0sleep00-21swapper/012:10:180
12514220,1sleep00-21swapper/007:35:130
123428220,1sleep0123432-21ssh12:03:420
114683220,1sleep0328-21plymouthd11:45:020
11069220,1sleep011218-21memory07:30:180
108841220,1sleep0108983-21tr11:30:160
10601220,1sleep110705-21cut07:30:151
105248220,1sleep0105409-21mailstats11:20:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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