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2023-01-29 - 16:17

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, slot #6

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 i7-M620 @2667 MHz, Linux 4.19.106-rt45+ (Profile)

Latency plot of shadow in rack #3, slot #6
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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot6s.osadl.org (updated Sun Jan 29, 2023 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7899211796,15sleep30-21swapper/307:07:053
7597211293,12sleep10-21swapper/107:05:261
8030210695,6sleep00-21swapper/007:08:460
7908210695,6sleep20-21swapper/207:07:122
815799372,33cyclictest0-21swapper/310:35:153
815499269,16cyclictest0-21swapper/012:10:140
815799210,19cyclictest0-21swapper/312:35:173
815699211,18cyclictest0-21swapper/211:40:172
815499211,6cyclictest0-21swapper/009:00:590
815499210,19cyclictest0-21swapper/009:15:130
53152210,0sleep30-21swapper/311:05:163
815699201,17cyclictest0-21swapper/207:25:192
815699190,18cyclictest0-21swapper/212:10:142
815499192,5cyclictest0-21swapper/009:56:010
815499190,7cyclictest4675-21gdm-simple-gree08:27:580
815499190,17cyclictest0-21swapper/009:40:150
815799180,16cyclictest39-21ksoftirqd/308:30:173
815799180,16cyclictest0-21swapper/309:00:163
815699183,8cyclictest20423-21http10:24:592
8156991714,2cyclictest0-21swapper/211:15:172
8156991713,2cyclictest27311-21ssh09:25:222
8156991712,3cyclictest0-21swapper/209:00:012
815499170,15cyclictest0-21swapper/010:55:220
815799161,13cyclictest8366-21hddtemp_smartct09:55:223
8157991611,3cyclictest25547-21tr09:20:183
8157991611,3cyclictest21192-21munin-node3
8156991611,3cyclictest0-21swapper/211:55:222
8156991611,3cyclictest0-21swapper/211:55:212
815699161,13cyclictest0-21swapper/209:05:192
815599161,13cyclictest0-21swapper/110:35:141
815499162,5cyclictest0-21swapper/009:10:020
815799154,4cyclictest0-21swapper/308:59:053
815799151,12cyclictest0-21swapper/308:25:203
815699152,8cyclictest0-21swapper/208:20:012
815599151,12cyclictest6826-21taskset12:23:331
815499150,14cyclictest0-21swapper/011:40:160
815799140,2cyclictest0-21swapper/312:25:363
815799140,12cyclictest10876-21pzem_current10:00:223
815699149,3cyclictest0-21swapper/208:10:292
815699142,6cyclictest0-21swapper/211:15:002
815699141,7cyclictest0-21swapper/211:30:002
815699140,12cyclictest20327-21missed_timers07:40:242
815699140,12cyclictest0-21swapper/212:00:182
815699140,12cyclictest0-21swapper/212:00:172
815699140,12cyclictest0-21swapper/209:15:252
815599149,3cyclictest31002-21munin-run10:49:591
815599142,6cyclictest0-21swapper/112:05:011
815599142,6cyclictest0-21swapper/112:05:011
815599142,6cyclictest0-21swapper/110:04:591
815599142,6cyclictest0-21swapper/109:10:011
815599140,12cyclictest0-21swapper/111:17:561
815599140,12cyclictest0-21swapper/109:25:361
815499142,9cyclictest4675-21gdm-simple-gree10:54:590
815499142,5cyclictest0-21swapper/008:46:590
8154991411,2cyclictest0-21swapper/012:20:300
815499140,7cyclictest0-21swapper/009:32:580
815499140,12cyclictest0-21swapper/012:25:230
815799139,2cyclictest3923-21runrttasks09:35:233
815799138,3cyclictest0-21swapper/312:32:523
815799138,3cyclictest0-21swapper/310:19:593
8157991310,2cyclictest0-21swapper/311:35:223
8157991310,2cyclictest0-21swapper/310:40:323
8157991310,2cyclictest0-21swapper/310:09:593
8157991310,2cyclictest0-21swapper/309:05:213
8157991310,2cyclictest0-21swapper/308:50:213
8157991310,2cyclictest0-21swapper/308:10:143
815799130,2cyclictest0-21swapper/309:50:303
815799130,2cyclictest0-21swapper/308:35:163
815699132,8cyclictest0-21swapper/210:02:022
815699132,6cyclictest0-21swapper/211:00:002
815699131,7cyclictest0-21swapper/210:09:592
815699131,7cyclictest0-21swapper/208:20:012
815699131,6cyclictest0-21swapper/210:55:012
8156991310,2cyclictest0-21swapper/208:35:262
8156991310,2cyclictest0-21swapper/208:30:222
815699130,2cyclictest0-21swapper/209:40:152
815699130,12cyclictest0-21swapper/211:34:342
815699130,11cyclictest0-21swapper/212:30:262
815599132,6cyclictest0-21swapper/112:30:011
815599132,6cyclictest0-21swapper/109:44:591
815599132,5cyclictest0-21swapper/111:25:011
815599131,6cyclictest0-21swapper/109:34:591
815599131,3cyclictest2758-21sendmail11:00:001
815599130,2cyclictest23217-21http_loadtime10:30:191
815599130,12cyclictest0-21swapper/112:05:191
815599130,12cyclictest0-21swapper/109:50:061
815499138,3cyclictest32161-21latency09:35:200
8154991310,2cyclictest0-21swapper/011:24:000
8154991310,2cyclictest0-21swapper/008:20:200
815499130,11cyclictest19879-21ssh11:38:570
92072120,2sleep10-21swapper/107:10:241
815799129,2cyclictest0-21swapper/312:05:013
815799129,2cyclictest0-21swapper/311:20:323
815799129,2cyclictest0-21swapper/311:15:293
815799129,2cyclictest0-21swapper/310:46:153
815799129,2cyclictest0-21swapper/310:32:483
815799129,2cyclictest0-21swapper/309:45:233
815799129,2cyclictest0-21swapper/309:33:323
815799129,2cyclictest0-21swapper/309:28:233
815799129,2cyclictest0-21swapper/307:45:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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