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2022-06-30 - 21:02

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

Latency plot of system in rack #d, slot #1
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, Linux 4.9.20-rt16, x86_64 highest latencies:
System rackdslot1.osadl.org (updated Mon Mar 07, 2022 12:46:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
847421810,8sleep2443899cyclictest09:15:002
847421810,8sleep2443899cyclictest09:15:002
219121660,8sleep0443699cyclictest11:45:090
118791143120,10phc2sys0-21swapper/107:07:371
4437999984,8cyclictest25-21ksoftirqd/108:10:141
389629572,10sleep30-21swapper/307:07:083
4437998269,8cyclictest25-21ksoftirqd/110:10:151
39282799,18sleep20-21swapper/207:07:322
4439997664,6cyclictest41-21ksoftirqd/310:40:153
4439997564,6cyclictest41-21ksoftirqd/310:00:153
4439997361,6cyclictest41-21ksoftirqd/310:55:163
4439997261,6cyclictest41-21ksoftirqd/311:20:203
443699698,14cyclictest25813-21sed12:15:050
4438996755,9cyclictest33-21ksoftirqd/209:55:152
4437996754,8cyclictest25-21ksoftirqd/109:15:151
443699679,13cyclictest11821-21ls09:15:350
4439996555,5cyclictest41-21ksoftirqd/311:25:163
4439996427,10cyclictest41-21ksoftirqd/310:05:063
4439996330,8cyclictest41-21ksoftirqd/312:15:053
443699635,13cyclictest13939-21cat08:00:120
4439996225,12cyclictest41-21ksoftirqd/308:45:323
4437996252,6cyclictest25-21ksoftirqd/111:00:151
4437996252,4cyclictest25-21ksoftirqd/107:15:151
443699625,18cyclictest11265-21irqrtprio09:55:240
4439996131,4cyclictest41-21ksoftirqd/307:55:023
4439996126,9cyclictest41-21ksoftirqd/312:00:103
443699619,11cyclictest7070-21cut10:30:180
443699615,13cyclictest2987-21awk09:05:190
443699615,13cyclictest2987-21awk09:05:190
4439996030,8cyclictest41-21ksoftirqd/311:55:093
4439996027,5cyclictest41-21ksoftirqd/312:20:143
4439996026,9cyclictest41-21ksoftirqd/309:35:273
443699605,12cyclictest30871-21df_abs08:20:190
443699604,14cyclictest31630-21cat09:40:240
443699604,13cyclictest13470-21/usr/sbin/munin12:00:030
4439995947,7cyclictest41-21ksoftirqd/311:15:193
4439995928,5cyclictest41-21ksoftirqd/308:38:263
4439995926,9cyclictest41-21ksoftirqd/309:10:173
4439995926,9cyclictest41-21ksoftirqd/309:10:173
4439995926,9cyclictest41-21ksoftirqd/308:40:143
443999591,47cyclictest12696-21sh10:40:003
4437995951,4cyclictest25-21ksoftirqd/110:15:181
443699594,13cyclictest5759-21acpi09:10:100
443699594,13cyclictest5759-21acpi09:10:100
443699593,11cyclictest3292-21fschecks_time11:05:190
4439995828,4cyclictest41-21ksoftirqd/312:30:243
4439995828,4cyclictest41-21ksoftirqd/312:25:123
4439995825,5cyclictest41-21ksoftirqd/307:15:123
4439995822,8cyclictest41-21ksoftirqd/309:20:013
4437995846,7cyclictest25-21ksoftirqd/108:25:141
4437995844,8cyclictest25-21ksoftirqd/111:10:141
443699588,9cyclictest26475-21python08:55:130
443699587,11cyclictest25323-21sh07:35:070
443699584,13cyclictest24603-21sed11:30:440
443699583,13cyclictest18496-21df_abs11:25:120
4439995735,4cyclictest41-21ksoftirqd/312:05:133
4439995728,4cyclictest41-21ksoftirqd/309:40:063
4439995727,5cyclictest41-21ksoftirqd/307:25:203
4439995727,4cyclictest41-21ksoftirqd/307:50:383
4439995727,4cyclictest41-21ksoftirqd/307:50:373
4439995726,8cyclictest41-21ksoftirqd/311:30:383
4439995724,5cyclictest41-21ksoftirqd/307:10:133
4439995723,5cyclictest41-21ksoftirqd/310:20:013
4439995722,5cyclictest41-21ksoftirqd/309:45:053
443699575,10cyclictest18623-21apt-get10:05:130
443699574,13cyclictest10226-21ls08:35:140
443699573,13cyclictest8890-21latency_hist12:35:000
443699572,12cyclictest0-21swapper/010:55:030
4439995626,4cyclictest41-21ksoftirqd/311:45:133
4439995626,4cyclictest41-21ksoftirqd/308:00:023
4439995623,9cyclictest41-21ksoftirqd/309:25:143
4439995623,5cyclictest41-21ksoftirqd/309:50:213
4439995622,5cyclictest41-21ksoftirqd/307:35:333
4439995619,10cyclictest41-21ksoftirqd/311:00:023
4439995618,11cyclictest41-21ksoftirqd/307:30:023
443999560,10cyclictest41-21ksoftirqd/308:25:083
443899563,14cyclictest18295-21switchtime07:25:132
443699568,9cyclictest7761-21sensors_temp09:50:320
443699562,12cyclictest0-21swapper/008:40:100
443699561,12cyclictest1628-21grep08:25:110
443999558,10cyclictest41-21ksoftirqd/307:40:333
4439995526,4cyclictest41-21ksoftirqd/311:10:203
4439995526,4cyclictest41-21ksoftirqd/310:10:003
4439995524,8cyclictest41-21ksoftirqd/308:05:323
4439995523,8cyclictest41-21ksoftirqd/310:25:083
4439995521,5cyclictest41-21ksoftirqd/311:40:223
4439995521,5cyclictest41-21ksoftirqd/311:40:223
4439995521,5cyclictest41-21ksoftirqd/307:45:103
4439995521,4cyclictest41-21ksoftirqd/311:35:033
4439995521,4cyclictest41-21ksoftirqd/311:35:033
443699556,13cyclictest13594-21cstates07:20:110
443699555,10cyclictest10319-21df_abs12:35:120
443699553,13cyclictest25824-21cat08:15:100
443999546,4cyclictest14269-21apt-get07:20:163
443999545,8cyclictest41-21ksoftirqd/308:15:053
443999545,3cyclictest41-21ksoftirqd/311:05:223
4439995441,4cyclictest41-21ksoftirqd/309:30:163
4439995427,4cyclictest41-21ksoftirqd/310:51:133
4439995425,4cyclictest41-21ksoftirqd/310:30:233
4439995425,4cyclictest41-21ksoftirqd/309:00:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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