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2023-06-01 - 11:51

x86 Intel Core i5-6440EQ @2700 MHz, Linux 4.9.47-rt37 (Profile)

Latency plot of system in rack #5, slot #2
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 -Sp99 -i200 -h400 -q
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 rack5slot2.osadl.org (updated Thu Jun 01, 2023 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
159442204168,12sleep00-21swapper/019:05:090
181482202186,11sleep10-21swapper/119:09:521
159472196181,11sleep30-21swapper/319:05:123
159412185168,12sleep20-21swapper/219:05:072
143892490,0sleep10-21swapper/123:23:281
8632470,0sleep30-21swapper/323:15:263
96732100,0sleep10-21swapper/122:23:241
160152100,0sleep20-21swapper/200:21:462
183399980,4cyclictest21940-21perf22:50:000
183399973,4cyclictest20309-21munin-run22:30:010
183399971,5cyclictest0-21swapper/023:55:180
2205260,0sleep20-21swapper/219:40:192
183529950,5cyclictest0-21swapper/322:30:073
183529950,5cyclictest0-21swapper/321:52:343
183529950,5cyclictest0-21swapper/321:11:593
183499951,2cyclictest0-21swapper/219:55:192
183499950,5cyclictest1249-21perf20:44:592
183499950,5cyclictest0-21swapper/222:43:172
183499950,4cyclictest17971-21apt-get23:45:012
183499950,0cyclictest0-21swapper/223:03:042
183499950,0cyclictest0-21swapper/221:41:442
183439951,2cyclictest0-21swapper/123:55:181
183439951,2cyclictest0-21swapper/123:50:191
183439951,2cyclictest0-21swapper/122:25:181
183439951,2cyclictest0-21swapper/120:50:181
183439951,2cyclictest0-21swapper/119:40:161
183439950,5cyclictest0-21swapper/123:09:461
183439950,5cyclictest0-21swapper/122:44:101
183439950,5cyclictest0-21swapper/122:00:051
183399951,3cyclictest759-21snmpd21:06:200
183399951,3cyclictest759-21snmpd19:14:310
183399950,4cyclictest0-21swapper/023:05:150
183399950,4cyclictest0-21swapper/022:05:190
183399950,4cyclictest0-21swapper/022:00:200
183399950,4cyclictest0-21swapper/019:40:160
183399950,4cyclictest0-21swapper/000:10:130
183529944,0cyclictest20524-21kworker/3:123:33:013
183529944,0cyclictest20524-21kworker/3:120:00:193
183529944,0cyclictest0-21swapper/322:55:093
183529944,0cyclictest0-21swapper/322:00:433
183529943,1cyclictest20068-21ssh21:32:033
183529942,2cyclictest21256-21cron20:20:013
183529941,3cyclictest759-21snmpd23:12:203
183529941,2cyclictest0-21swapper/320:35:183
183529941,1cyclictest0-21swapper/320:45:203
183529940,4cyclictest19256-21apt-get22:10:193
183529940,4cyclictest10102-21ssh21:25:563
183529940,4cyclictest0-21swapper/323:55:073
183529940,4cyclictest0-21swapper/323:47:343
183529940,4cyclictest0-21swapper/323:22:543
183529940,4cyclictest0-21swapper/322:50:163
183529940,4cyclictest0-21swapper/322:45:343
183529940,4cyclictest0-21swapper/322:40:143
183529940,4cyclictest0-21swapper/322:35:053
183529940,4cyclictest0-21swapper/322:25:063
183529940,4cyclictest0-21swapper/322:18:353
183529940,4cyclictest0-21swapper/321:41:063
183529940,4cyclictest0-21swapper/321:15:233
183529940,4cyclictest0-21swapper/321:00:193
183529940,4cyclictest0-21swapper/320:55:173
183529940,4cyclictest0-21swapper/319:20:193
183529940,4cyclictest0-21swapper/319:16:253
183529940,4cyclictest0-21swapper/300:38:253
183529940,4cyclictest0-21swapper/300:16:303
183529940,4cyclictest0-21swapper/300:00:173
183529940,3cyclictest6638-21chrt19:50:043
183529940,3cyclictest3559-21ssh22:20:043
183529940,3cyclictest31032-21ssh21:20:033
183529940,3cyclictest29876-21perl19:30:193
183529940,3cyclictest28987-21users00:10:243
183529940,3cyclictest20628-21sh00:25:023
183529940,3cyclictest20138-21rm23:07:283
183529940,3cyclictest17643-21memory20:10:223
183529940,3cyclictest12060-21perl21:05:253
183529940,3cyclictest0-21swapper/320:10:003
183529940,3cyclictest0-21swapper/320:10:003
183499944,0cyclictest0-21swapper/223:41:372
183499944,0cyclictest0-21swapper/223:15:082
183499944,0cyclictest0-21swapper/222:13:022
183499943,1cyclictest9794-21cut23:20:222
183499942,2cyclictest0-21swapper/222:47:492
183499942,1cyclictest29697-21ssh22:15:372
183499940,4cyclictest2891-21ssh22:38:302
183499940,4cyclictest16554-21/usr/sbin/munin20:10:252
183499940,4cyclictest0-21swapper/223:55:192
183499940,4cyclictest0-21swapper/223:53:122
183499940,4cyclictest0-21swapper/223:35:192
183499940,4cyclictest0-21swapper/223:33:372
183499940,4cyclictest0-21swapper/222:30:192
183499940,4cyclictest0-21swapper/222:05:182
183499940,4cyclictest0-21swapper/222:00:192
183499940,4cyclictest0-21swapper/221:35:162
183499940,4cyclictest0-21swapper/221:20:232
183499940,4cyclictest0-21swapper/221:10:202
183499940,4cyclictest0-21swapper/220:55:012
183499940,4cyclictest0-21swapper/220:50:302
183499940,4cyclictest0-21swapper/219:20:192
183499940,4cyclictest0-21swapper/219:15:202
183499940,4cyclictest0-21swapper/200:37:032
183499940,4cyclictest0-21swapper/200:33:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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