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2023-03-31 - 01:35

x86 Intel Atom E3845 @1910 MHz, Linux 4.19.37-rt19 (Profile)

Latency plot of system in rack #d, slot #4
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Up99 -i200 -h400 --smi -q
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 rackdslot4.osadl.org (updated Thu Mar 30, 2023 12:46:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
129891128106,10phc2sys0-21swapper/307:09:393
21321211189,10sleep10-21swapper/107:08:111
2114428968,9sleep20-21swapper/207:05:532
21756997742,5cyclictest33-21ksoftirqd/211:20:212
56498700,40rtkit-daemon9-21ksoftirqd/007:09:150
21756996731,9cyclictest33-21ksoftirqd/208:45:202
21756996731,9cyclictest33-21ksoftirqd/208:45:192
129991670,1ptp4l401ktimersoftd/310:25:443
2175499665,14cyclictest3958-21acpi08:50:160
2175699621,7cyclictest26193-21latency_hist07:20:002
2175699621,7cyclictest26193-21latency_hist07:20:002
134622620,2sleep10-21swapper/111:40:331
221342610,2sleep10-21swapper/110:45:321
2175699617,6cyclictest33-21ksoftirqd/210:49:222
2175699612,7cyclictest33-21ksoftirqd/207:45:002
2175699604,7cyclictest33-21ksoftirqd/210:55:372
2175699597,5cyclictest33-21ksoftirqd/207:48:212
2175699590,8cyclictest321ktimersoftd/210:05:192
129991590,1ptp4l401ktimersoftd/307:58:423
231292580,7sleep02175499cyclictest07:10:270
2175699584,6cyclictest33-21ksoftirqd/210:15:202
2175699584,6cyclictest33-21ksoftirqd/210:15:202
21755995851,4cyclictest19536-21sh08:15:001
129991580,2ptp4l401ktimersoftd/307:35:243
21756995751,4cyclictest33-21ksoftirqd/212:05:272
2175699574,7cyclictest33-21ksoftirqd/212:20:242
2175699574,7cyclictest33-21ksoftirqd/209:10:342
2175699574,6cyclictest33-21ksoftirqd/208:05:322
2175699573,7cyclictest33-21ksoftirqd/207:53:262
2175699573,6cyclictest321ktimersoftd/207:10:122
2175699566,9cyclictest33-21ksoftirqd/212:30:152
21756995649,4cyclictest33-21ksoftirqd/210:00:282
21756995648,4cyclictest33-21ksoftirqd/209:45:182
2175699564,6cyclictest33-21ksoftirqd/210:50:232
21756995630,5cyclictest33-21ksoftirqd/208:37:142
2175699562,6cyclictest33-21ksoftirqd/207:30:282
2175699560,6cyclictest33-21ksoftirqd/209:55:312
250732550,2sleep20-21swapper/208:25:242
21756995549,4cyclictest33-21ksoftirqd/211:55:272
21756995549,4cyclictest33-21ksoftirqd/207:25:332
21756995548,4cyclictest33-21ksoftirqd/211:00:282
2175699554,6cyclictest33-21ksoftirqd/211:20:002
21756995540,5cyclictest33-21ksoftirqd/209:20:252
2175699552,6cyclictest33-21ksoftirqd/210:35:012
2175699550,6cyclictest33-21ksoftirqd/212:40:002
21757995447,4cyclictest41-21ksoftirqd/311:19:593
2175699546,6cyclictest33-21ksoftirqd/207:35:202
21756995448,4cyclictest33-21ksoftirqd/212:00:362
21756995448,4cyclictest33-21ksoftirqd/209:00:352
21757995347,3cyclictest41-21ksoftirqd/312:00:003
21756995347,4cyclictest33-21ksoftirqd/211:50:342
21756995347,4cyclictest33-21ksoftirqd/211:50:342
21756995347,4cyclictest33-21ksoftirqd/210:25:212
21756995347,4cyclictest33-21ksoftirqd/210:20:312
21756995347,4cyclictest33-21ksoftirqd/208:30:242
21756995345,5cyclictest8336-21cron09:00:002
21756995340,4cyclictest33-21ksoftirqd/212:20:002
2175699533,6cyclictest31329-21strings09:50:322
2175699530,6cyclictest33-21ksoftirqd/208:20:312
21756995247,3cyclictest33-21ksoftirqd/208:00:222
21756995246,4cyclictest33-21ksoftirqd/211:10:262
21756995246,4cyclictest33-21ksoftirqd/211:05:302
21756995245,4cyclictest33-21ksoftirqd/211:40:352
21756995245,4cyclictest33-21ksoftirqd/211:35:322
21756995245,4cyclictest33-21ksoftirqd/209:30:002
21756995245,4cyclictest33-21ksoftirqd/208:40:242
21756995245,4cyclictest33-21ksoftirqd/208:40:232
21756995241,4cyclictest33-21ksoftirqd/208:10:372
21755995234,15cyclictest25-21ksoftirqd/111:05:041
2175699515,5cyclictest33-21ksoftirqd/209:05:292
2175699514,7cyclictest0-21swapper/207:20:222
21756995146,3cyclictest33-21ksoftirqd/210:40:382
21756995145,4cyclictest33-21ksoftirqd/212:25:322
21756995144,4cyclictest33-21ksoftirqd/208:15:352
2175699513,6cyclictest33-21ksoftirqd/209:35:002
2175699512,5cyclictest33-21ksoftirqd/212:10:382
21756995043,4cyclictest33-21ksoftirqd/211:30:232
21757994944,3cyclictest41-21ksoftirqd/309:15:013
21757994944,3cyclictest41-21ksoftirqd/308:25:003
21757994943,4cyclictest41-21ksoftirqd/309:34:593
21757994942,4cyclictest41-21ksoftirqd/309:59:593
21756994943,4cyclictest33-21ksoftirqd/211:45:382
21756994943,4cyclictest33-21ksoftirqd/211:45:382
21755994932,14cyclictest25-21ksoftirqd/107:36:291
21757994842,4cyclictest41-21ksoftirqd/310:55:013
21757994842,4cyclictest41-21ksoftirqd/310:25:003
21757994842,3cyclictest41-21ksoftirqd/310:50:003
21756994842,4cyclictest33-21ksoftirqd/209:15:262
21755994831,14cyclictest25-21ksoftirqd/108:22:171
21755994830,15cyclictest25-21ksoftirqd/112:01:151
21755994830,15cyclictest25-21ksoftirqd/109:13:151
21755994830,15cyclictest25-21ksoftirqd/108:47:061
21755994830,15cyclictest25-21ksoftirqd/108:47:061
21757994742,3cyclictest41-21ksoftirqd/311:34:593
21757994741,3cyclictest41-21ksoftirqd/307:30:213
21757994740,4cyclictest41-21ksoftirqd/308:10:183
21756994640,4cyclictest33-21ksoftirqd/209:40:222
21756994640,4cyclictest33-21ksoftirqd/209:35:212
21756994640,3cyclictest33-21ksoftirqd/211:29:592
2175699463,7cyclictest33-21ksoftirqd/207:55:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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