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2025-11-29 - 02:05
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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 Fri Nov 28, 2025 12:43:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2464999148,1cyclictest0-21swapper/311:00:143
2464999130,12cyclictest0-21swapper/307:55:103
2464999130,11cyclictest0-21swapper/310:25:133
2464999130,11cyclictest0-21swapper/307:20:143
2464999128,0cyclictest0-21swapper/309:10:103
24649991211,1cyclictest69450irq/121-eno107:15:113
24649991210,1cyclictest0-21swapper/308:10:103
2464999120,1cyclictest0-21swapper/312:35:143
2464999120,11cyclictest0-21swapper/310:50:133
2464999120,11cyclictest0-21swapper/310:30:203
2464999120,10cyclictest0-21swapper/311:35:143
2464999120,10cyclictest0-21swapper/311:15:033
2464999119,1cyclictest69450irq/121-eno111:45:153
2464999119,1cyclictest0-21swapper/309:15:143
2464999119,1cyclictest0-21swapper/308:35:093
2464999118,0cyclictest0-21swapper/309:50:013
24649991111,0cyclictest0-21swapper/309:55:133
24649991111,0cyclictest0-21swapper/307:50:133
24649991110,1cyclictest0-21swapper/309:55:013
24649991110,0cyclictest0-21swapper/312:20:133
24649991110,0cyclictest0-21swapper/308:10:003
2464999110,9cyclictest0-21swapper/308:25:123
2464999110,10cyclictest69450irq/121-eno111:31:203
2464999110,10cyclictest0-21swapper/311:00:023
2464999110,10cyclictest0-21swapper/309:05:193
2464999110,0cyclictest0-21swapper/312:00:003
2464999110,0cyclictest0-21swapper/311:10:163
2464999110,0cyclictest0-21swapper/310:10:133
2464999110,0cyclictest0-21swapper/308:00:123
2464999109,1cyclictest69450irq/121-eno112:15:123
2464999109,1cyclictest69450irq/121-eno107:25:113
2464999109,0cyclictest0-21swapper/311:05:123
2464999101,8cyclictest69450irq/121-eno112:32:373
24649991010,0cyclictest69450irq/121-eno112:08:073
24649991010,0cyclictest69450irq/121-eno112:00:193
24649991010,0cyclictest69450irq/121-eno111:50:173
24649991010,0cyclictest69450irq/121-eno111:21:283
24649991010,0cyclictest69450irq/121-eno110:16:253
24649991010,0cyclictest0-21swapper/310:20:183
2464999100,9cyclictest69450irq/121-eno112:10:153
2464999100,9cyclictest69450irq/121-eno110:05:353
2464999100,8cyclictest0-21swapper/311:25:193
2464999100,0cyclictest0-21swapper/310:45:133
2464999100,0cyclictest0-21swapper/309:24:563
2464999100,0cyclictest0-21swapper/307:39:093
2464999100,0cyclictest0-21swapper/307:10:123
246499999,0cyclictest69450irq/121-eno109:39:263
246499999,0cyclictest0-21swapper/310:40:193
246499999,0cyclictest0-21swapper/309:30:193
246499999,0cyclictest0-21swapper/308:15:183
246499998,0cyclictest0-21swapper/310:00:133
246499990,8cyclictest69450irq/121-eno112:25:203
246499990,8cyclictest69450irq/121-eno109:00:233
246499990,8cyclictest0-21swapper/308:50:183
246499988,0cyclictest69450irq/121-eno110:36:453
246499988,0cyclictest69450irq/121-eno108:20:143
246499988,0cyclictest0-21swapper/309:40:123
246499988,0cyclictest0-21swapper/308:45:173
246499987,0cyclictest0-21swapper/307:40:143
246499977,0cyclictest69450irq/121-eno111:41:073
246499977,0cyclictest0-21swapper/309:25:113
246499970,6cyclictest69450irq/121-eno108:30:153
246499960,5cyclictest69450irq/121-eno107:30:223
246499960,3cyclictest0-21swapper/308:40:133
24480261,2sleep30-21swapper/307:09:573
246499955,0cyclictest69450irq/121-eno107:45:203
59913243,1sleep052234-21kworker/0:2+events08:39:220
31012240,1sleep131038-21apt-get07:25:111
246499940,2cyclictest0-21swapper/308:55:123
24388242,1sleep20-21swapper/207:08:472
23719241,1sleep10-21swapper/107:05:211
23061241,1sleep00-21swapper/007:05:160
60237230,1sleep160263-21apt-get08:40:121
42944230,1sleep242970-21apt-get07:55:102
145458230,2sleep2145685-21expr12:05:172
104754230,1sleep0104782-21apt-get10:30:140
98136220,1sleep098137-21sshd10:14:240
96109220,1sleep00-21swapper/010:09:570
90236220,1sleep190523-21df09:55:161
88710220,0sleep00-21swapper/009:50:200
84855220,1sleep10-21swapper/109:40:191
81557220,0sleep00-21swapper/009:33:060
78724220,1sleep278955-21unixbench_multi09:25:192
72778220,1sleep173028-21users09:10:181
70862220,1sleep171112-21users09:05:211
69853220,1sleep269927-21/usr/sbin/munin09:05:142
65727220,1sleep165887-21grep08:55:001
65719220,0sleep00-21swapper/008:54:550
61140220,0sleep00-21swapper/008:40:190
52655220,1sleep152742-21aten_r1power_vo08:20:141
35098220,1sleep035283-21/usr/sbin/munin07:35:160
26412220,0sleep20-21swapper/207:14:312
25763220,1sleep126015-21awk07:10:231
25255220,1sleep025407-21memory07:10:180
157831220,0sleep10-21swapper/112:35:141
157215220,0sleep00-21swapper/012:31:490
152376220,1sleep0152548-21python312:20:210
145769220,1sleep0145922-21memory12:05:200
145042220,1sleep10-21swapper/112:05:001
140754220,0sleep00-21swapper/011:54:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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