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2022-07-06 - 10:11

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, 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 i9-9900K @3600 MHz, Linux 5.15.49-rt47 (Profile)

Latency plot of shadow in rack #0, 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 rack0slot7s.osadl.org (updated Wed Jul 06, 2022 00:45:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8390922363357,3sleep40-21swapper/419:05:0910
8425142357350,4sleep30-21swapper/319:09:099
8424642354317,10sleep120-21swapper/1219:08:294
8425432352332,11sleep150-21swapper/1519:09:377
8424992345326,10sleep50-21swapper/519:08:5511
8423212343323,11sleep60-21swapper/619:06:3012
8425112339321,10sleep00-21swapper/019:09:060
8423412338318,11sleep70-21swapper/719:06:4713
8422952338319,10sleep140-21swapper/1419:06:066
8424012336318,10sleep80-21swapper/819:07:3714
8423072336316,11sleep90-21swapper/919:06:1815
8424632335317,10sleep110-21swapper/1119:08:283
8422832334316,10sleep20-21swapper/219:05:558
8425072333313,11sleep130-21swapper/1319:09:025
8424052333313,11sleep100-21swapper/1019:07:402
8422992331313,10sleep10-21swapper/119:06:101
842992994229,13cyclictest0-21swapper/1000:30:242
84299299294,25cyclictest0-21swapper/1019:44:502
84299299284,0cyclictest0-21swapper/1021:34:402
84299299220,22cyclictest0-21swapper/1000:08:262
842992992110,11cyclictest0-21swapper/1023:57:272
842992992110,11cyclictest0-21swapper/1023:13:312
842992992110,11cyclictest0-21swapper/1022:29:342
842992992110,11cyclictest0-21swapper/1021:45:392
842992992110,11cyclictest0-21swapper/1020:39:442
842992992110,11cyclictest0-21swapper/1020:28:462
842992992110,11cyclictest0-21swapper/1019:22:522
84299299210,21cyclictest0-21swapper/1019:33:502
84299299210,10cyclictest0-21swapper/1023:46:282
84299299210,10cyclictest0-21swapper/1022:40:342
842978992115,0cyclictest1614-21snmpd21:51:5012
84299299209,11cyclictest0-21swapper/1020:06:482
84299299209,11cyclictest0-21swapper/1020:06:472
842992992010,10cyclictest0-21swapper/1022:18:352
842992992010,10cyclictest0-21swapper/1019:11:532
84299299200,10cyclictest0-21swapper/1019:55:492
842992991919,0cyclictest1010684-21nodedev-init22:00:182
84298999190,16cyclictest0-21swapper/919:18:0915
842986991919,0cyclictest909537-21nodedev-init20:25:1714
84297899190,0cyclictest0-21swapper/619:48:5012
84296899190,16cyclictest0-21swapper/300:10:149
84301099180,0cyclictest0-21swapper/1522:26:487
84299699184,7cyclictest0-21swapper/1119:16:593
84298999180,18cyclictest0-21swapper/920:25:1515
84295799180,15cyclictest0-21swapper/023:55:240
84295799180,15cyclictest0-21swapper/021:03:270
843010991717,0cyclictest1105432-21nodedev-init23:15:187
84301099170,0cyclictest0-21swapper/1500:29:337
84300799172,15cyclictest0-21swapper/1420:23:276
84300799170,14cyclictest0-21swapper/1400:23:246
84300099170,0cyclictest0-21swapper/1221:50:164
84300099170,0cyclictest0-21swapper/1221:35:084
84299699170,14cyclictest0-21swapper/1123:30:133
84299299174,13cyclictest0-21swapper/1023:02:322
84299299174,13cyclictest0-21swapper/1021:23:402
84299299170,14cyclictest0-21swapper/1019:36:062
84298999170,14cyclictest0-21swapper/923:26:1115
84298999170,14cyclictest0-21swapper/919:31:5515
84298999170,0cyclictest0-21swapper/920:41:0615
842986991711,3cyclictest0-21swapper/822:25:1614
84298699170,14cyclictest0-21swapper/822:46:2414
84298699170,14cyclictest0-21swapper/819:45:2414
84298699170,0cyclictest0-21swapper/822:16:0914
84298199170,14cyclictest0-21swapper/722:17:3913
84298199170,0cyclictest0-21swapper/723:43:2613
84298199170,0cyclictest0-21swapper/721:10:4813
84297899170,17cyclictest0-21swapper/600:38:3712
84297899170,15cyclictest0-21swapper/619:54:3512
84297899170,14cyclictest0-21swapper/619:41:0112
84297199170,14cyclictest0-21swapper/400:25:2310
84297199170,0cyclictest0-21swapper/421:41:3810
842968991712,3cyclictest0-21swapper/323:15:159
84296899170,14cyclictest0-21swapper/321:13:229
842963991711,3cyclictest1178487-21ssh00:14:568
84296199170,14cyclictest0-21swapper/122:46:261
84296199170,14cyclictest0-21swapper/122:40:121
842957991716,1cyclictest1614-21snmpd19:14:040
84295799170,15cyclictest944690-21diskmemload21:22:230
84295799170,15cyclictest172246-1kworker/u33:000:36:020
84295799170,15cyclictest0-21swapper/023:24:060
84295799170,15cyclictest0-21swapper/021:38:360
84295799170,15cyclictest0-21swapper/019:57:110
84295799170,15cyclictest0-21swapper/000:33:360
843010991615,1cyclictest1614-21snmpd22:16:397
84301099160,16cyclictest0-21swapper/1521:11:257
843007991615,1cyclictest1614-21snmpd22:15:036
84300799160,13cyclictest0-21swapper/1422:26:066
843002991616,0cyclictest1614-21snmpd23:42:145
843002991616,0cyclictest1614-21snmpd21:00:285
843002991616,0cyclictest1614-21snmpd19:43:375
843002991615,1cyclictest1614-21snmpd21:05:075
843002991615,1cyclictest1004021-21mii-tool21:55:155
843002991614,2cyclictest1614-21snmpd22:06:115
843000991616,0cyclictest1614-21snmpd22:54:434
843000991616,0cyclictest1614-21snmpd20:36:184
843000991616,0cyclictest1614-21snmpd20:21:264
84300099160,16cyclictest0-21swapper/1222:25:474
84300099160,13cyclictest0-21swapper/1223:20:014
842996991616,0cyclictest1614-21snmpd20:54:073
84299699160,0cyclictest0-21swapper/1122:20:233
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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