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2025-07-12 - 12:44
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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 50 highest latencies:
System rackcslot0.osadl.org (updated Sat Jul 12, 2025 00:43:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
348421470,0sleep20-21swapper/223:29:358
2596421360,5sleep21941499cyclictest23:39:298
188642125102,18sleep40-21swapper/419:09:4210
18862212295,22sleep20-21swapper/219:09:408
2185121210,5sleep61941999cyclictest23:49:2712
2185121210,5sleep61941999cyclictest23:49:2712
825321140,1sleep00-21swapper/022:53:110
18776210992,12sleep80-21swapper/819:08:2614
18781210892,12sleep130-21swapper/1319:08:315
1255021070,0sleep10-21swapper/122:50:151
3223821060,0sleep120-21swapper/1221:11:294
3223821060,0sleep120-21swapper/1221:11:294
1495421050,2sleep00-21swapper/000:34:010
1154021050,3sleep131942999cyclictest21:37:105
975921040,0sleep140-21swapper/1400:36:556
55721040,1sleep40-21swapper/423:14:2310
1000721020,1sleep00-21swapper/021:19:340
1000721020,1sleep00-21swapper/021:19:340
2080221010,5sleep81942199cyclictest23:42:1614
256432990,1sleep1241ktimersoftd/121:31:531
176172990,0sleep150-21swapper/1521:55:567
255282980,1sleep10-21swapper/121:14:141
255282980,1sleep10-21swapper/121:14:141
102132980,0sleep00-21swapper/021:58:370
23342960,1sleep20-21swapper/223:03:558
36522940,2sleep990-21ksoftirqd/922:01:2715
300192940,1sleep10-21swapper/123:17:481
120052940,1sleep50-21swapper/523:44:5311
62492930,1sleep60-21swapper/622:27:3612
325742920,2sleep9891ktimersoftd/920:05:3915
1894329284,4sleep110-21swapper/1119:10:053
163852920,1sleep90-21swapper/922:21:1415
65432910,1sleep111051ktimersoftd/1122:24:133
1865929072,4sleep30-21swapper/319:07:009
1861329078,8sleep90-21swapper/919:06:1815
30662890,1sleep60-21swapper/623:14:4112
226352890,1sleep40-21swapper/423:42:2810
324862880,1sleep90-21swapper/922:12:0815
1863928872,12sleep00-21swapper/019:06:410
16822880,2sleep111686-21sshd21:15:123
16822880,2sleep111686-21sshd21:15:123
29402870,1sleep20-21swapper/200:18:008
1874428775,8sleep150-21swapper/1519:08:017
176512870,1sleep140-21swapper/1422:50:446
306832860,1sleep00-21swapper/022:33:550
204442860,0sleep20-21swapper/223:35:128
1881928672,9sleep140-21swapper/1419:09:046
159242860,0sleep00-21swapper/023:34:380
320772850,3sleep932076-21sshd21:25:3615
320772850,3sleep932076-21sshd21:25:3615
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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