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2024-11-04 - 08:03
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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 50 highest latencies:
System rack0slot6.osadl.org (updated Mon Nov 04, 2024 00:46:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20511159956626,540cyclictest17-21ksoftirqd/000:32:430
20511389955621,44cyclictest0-21swapper/723:21:4513
2051148995538,45cyclictest0-21swapper/1023:25:462
20511699954125,515cyclictest0-21swapper/1522:52:197
20511699954125,515cyclictest0-21swapper/1522:52:197
2051143995380,40cyclictest0-21swapper/821:22:5814
20511289953839,498cyclictest0-21swapper/421:46:4310
20511289953234,498cyclictest0-21swapper/421:38:4210
20511389952628,1cyclictest0-21swapper/723:02:4213
20511629952528,497cyclictest0-21swapper/1322:12:335
20511629952526,499cyclictest0-21swapper/1320:12:545
2051135995256,514cyclictest0-21swapper/621:39:4412
20511159952411,15cyclictest221rcuc/019:10:220
20511159952411,15cyclictest221rcuc/019:10:220
20511489951544,469cyclictest0-21swapper/1023:12:432
20511699951416,498cyclictest0-21swapper/1520:23:437
20511489951415,498cyclictest0-21swapper/1022:51:202
20511489951415,498cyclictest0-21swapper/1022:51:202
20511489951414,498cyclictest0-21swapper/1020:40:592
20511699950941,468cyclictest0-21swapper/1520:59:207
20511629950822,485cyclictest0-21swapper/1320:08:205
205115199508506,2cyclictest0-21swapper/1121:57:583
20511699950550,454cyclictest0-21swapper/1520:00:237
2051169995049,29cyclictest0-21swapper/1522:15:447
20511629950439,465cyclictest0-21swapper/1322:31:435
20511359950369,422cyclictest2133284-21kworker/6:2+events20:54:4412
20511359950279,0cyclictest2094547-21kworker/6:1+events20:48:1912
20511359950180,421cyclictest2094547-21kworker/6:1+i915-unordered20:17:4412
2051125995012,0cyclictest0-21swapper/321:39:449
20511629949831,467cyclictest0-21swapper/1320:42:425
20511699949527,468cyclictest0-21swapper/1519:59:447
20511159949427,0cyclictest0-21swapper/021:16:430
20511159949224,468cyclictest0-21swapper/019:26:590
2051115994920,491cyclictest0-21swapper/023:21:440
205115899490489,1cyclictest2015812-21kworker/12:0+i915-unordered19:11:594
205115899490489,1cyclictest2015812-21kworker/12:0+i915-unordered19:11:594
20511489949022,467cyclictest0-21swapper/1019:22:452
205114399489488,1cyclictest2141044-21kworker/8:0+events21:08:4114
20511159948726,461cyclictest0-21swapper/021:01:590
20511629948646,439cyclictest0-21swapper/1323:28:445
20511359948620,28cyclictest0-21swapper/620:44:4412
205116999485485,0cyclictest2226085-21kworker/15:2+i915-unordered23:04:237
20511589948530,455cyclictest0-21swapper/1223:41:424
20511489948516,0cyclictest0-21swapper/1019:38:592
205116999484484,0cyclictest2276796-21kworker/15:2+events00:01:217
205116999484483,1cyclictest2117834-21kworker/15:1+i915-unordered21:00:207
205116299484454,30cyclictest0-21swapper/1322:08:425
20511489948315,468cyclictest0-21swapper/1019:40:202
205112299481480,1cyclictest2117576-21kworker/2:2+events20:33:438
20511629948045,424cyclictest2226254-21kworker/13:1+i915-unordered00:12:435
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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