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2023-01-30 - 19:35

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, slot #7

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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x86 Intel Core i3-6100U @2300 MHz, Linux 5.15.79-rt54 (Profile)

Latency plot of shadow in rack #7, slot #7
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 rack7slot7s.osadl.org (updated Mon Jan 30, 2023 12:44:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15306210287,10sleep10-21swapper/107:07:061
15386210186,10sleep30-21swapper/307:08:093
1527829064,8sleep00-21swapper/007:06:450
1546227464,6sleep20-21swapper/207:09:092
130802520,0sleep10-21swapper/111:12:241
15618992624,2cyclictest0-21swapper/209:38:192
15618992624,2cyclictest0-21swapper/209:38:182
1561899240,24cyclictest0-21swapper/209:18:502
1561599240,24cyclictest0-21swapper/112:13:031
1561899230,21cyclictest0-21swapper/209:23:042
1561899220,18cyclictest0-21swapper/211:13:382
12462220,1sleep20-21swapper/212:25:082
1561899210,19cyclictest0-21swapper/210:03:212
1561599210,21cyclictest0-21swapper/112:04:181
1561899200,18cyclictest0-21swapper/212:15:052
1561599209,3cyclictest224-21systemd-journal09:19:061
15618991913,4cyclictest0-21swapper/212:10:172
1561899190,19cyclictest0-21swapper/212:33:112
1561899190,19cyclictest0-21swapper/209:54:122
1561199192,16cyclictest0-21swapper/007:40:220
1561199192,16cyclictest0-21swapper/007:40:210
15622991818,0cyclictest0-21swapper/310:53:023
15618991816,1cyclictest14719-21kworker/2:211:20:382
15618991816,1cyclictest0-21swapper/211:04:542
1561899180,1cyclictest0-21swapper/210:32:452
1561899180,18cyclictest0-21swapper/212:36:332
1561899180,18cyclictest0-21swapper/210:26:362
1561899180,16cyclictest0-21swapper/211:18:062
1561899180,14cyclictest0-21swapper/209:49:042
15622991716,1cyclictest0-21swapper/312:35:303
1562299170,2cyclictest0-21swapper/310:39:033
1561899170,1cyclictest0-21swapper/210:47:282
1561899170,17cyclictest0-21swapper/211:07:542
1561899170,16cyclictest0-21swapper/210:37:142
1561599170,16cyclictest0-21swapper/111:30:111
15622991615,1cyclictest0-21swapper/310:32:193
1561899160,1cyclictest0-21swapper/210:53:372
1561899160,16cyclictest0-21swapper/212:04:592
1561899160,16cyclictest0-21swapper/210:23:452
1561899160,16cyclictest0-21swapper/210:06:592
1561899160,16cyclictest0-21swapper/209:10:052
1561599163,2cyclictest141rcu_preempt10:50:161
15615991611,3cyclictest8224-21diskmemload10:45:071
15615991610,5cyclictest6131-21apache210:18:441
1561199162,7cyclictest17984-21cp07:15:000
188202150,1sleep30-21swapper/311:55:273
1562299151,3cyclictest0-21swapper/308:50:173
15622991513,1cyclictest62050irq/128-enp2s0-11:19:143
1561899156,8cyclictest4456-21ssh12:06:362
15618991514,1cyclictest0-21swapper/211:43:222
1561899150,7cyclictest0-21swapper/210:18:502
1561599153,10cyclictest21613-21kworker/u8:309:33:281
15615991511,3cyclictest652-21ssh09:25:171
1561599150,4cyclictest0-21swapper/109:48:381
1561599150,15cyclictest0-21swapper/109:42:591
1561199153,0cyclictest141rcu_preempt09:19:370
15611991513,1cyclictest0-21swapper/010:10:240
1561199150,11cyclictest0-21swapper/009:10:200
1562299143,0cyclictest0-21swapper/312:08:373
15622991413,1cyclictest0-21swapper/311:37:223
15622991410,3cyclictest1486-21grep09:45:243
15622991410,2cyclictest6857-21tr09:05:233
1561899144,1cyclictest8224-21diskmemload10:55:202
15618991411,2cyclictest1584-21wc07:45:282
15618991410,3cyclictest18531-21taskset11:55:232
1561899140,13cyclictest2388-21uname08:55:272
1561899140,12cyclictest0-21swapper/210:12:242
1561599143,4cyclictest224-21systemd-journal12:19:591
15615991410,3cyclictest19349-21uname07:15:291
1561599140,2cyclictest0-21swapper/109:38:171
1561599140,2cyclictest0-21swapper/109:38:171
1561199142,7cyclictest5800-21awk09:04:590
15611991414,0cyclictest0-21swapper/007:15:210
15611991411,3cyclictest6147-21apache212:28:540
15611991410,3cyclictest9063-21tr09:30:180
15611991410,2cyclictest864-21http08:54:590
1561199140,1cyclictest0-21swapper/010:30:110
1561199140,1cyclictest0-21swapper/010:08:400
1561199140,12cyclictest0-21swapper/011:30:180
1562299137,4cyclictest25111-21apt-get09:20:193
1562299137,2cyclictest32446-21perf11:04:593
1562299135,5cyclictest0-21swapper/309:40:263
1562299133,8cyclictest0-21swapper/308:00:173
15622991310,2cyclictest9150-21cut11:50:193
15622991310,2cyclictest8711-21tr10:10:253
15622991310,2cyclictest8396-21cat11:30:013
15622991310,2cyclictest8396-21cat11:30:003
15622991310,2cyclictest8175-21apt09:30:003
15622991310,2cyclictest30349-21grep08:45:313
15622991310,2cyclictest27597-21grep08:40:313
15622991310,2cyclictest18317-21awk09:15:283
15622991310,2cyclictest1447-21head11:05:223
15622991310,2cyclictest12304-21grep08:10:213
1561899139,3cyclictest3896-21wc07:50:302
1561899130,12cyclictest790-21grep09:25:202
1561899130,12cyclictest19022-21grep07:15:262
1561899130,10cyclictest0-21swapper/211:34:122
1561599139,3cyclictest7007-21cron08:00:001
1561599139,3cyclictest25263-21wget11:40:251
1561599139,3cyclictest25113-21basename07:30:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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