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2023-01-29 - 17:34

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #8, 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 Pentium G4400 @3300 MHz, Linux 4.19.37-rt19 (Profile)

Latency plot of shadow in rack #8, 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 rack8slot7s.osadl.org (updated Sun Jan 29, 2023 12:43:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
209652330,0sleep10-21swapper/111:25:001
23961992121,0cyclictest0-21swapper/112:18:401
3832200,0sleep03848-21diskmemload10:26:380
227092191,4sleep022772-21needreboot07:05:180
2396199180,15cyclictest0-21swapper/112:39:111
2396199167,8cyclictest0-21swapper/109:32:401
2396199160,1cyclictest0-21swapper/111:05:251
2396199160,13cyclictest0-21swapper/107:44:441
2396099162,8cyclictest10139-21apt-get10:55:230
2396099160,15cyclictest1534-21meminfo10:30:220
2396099160,10cyclictest21132-21apt-get11:25:220
52702150,0sleep03848-21diskmemload09:10:410
300142150,0sleep00-21swapper/011:49:030
2396199153,10cyclictest0-21swapper/108:05:441
2396199150,14cyclictest0-21swapper/107:15:011
2396099155,5cyclictest7074-21apt-get07:50:150
2396099153,7cyclictest27847-21apt-get10:15:160
2396099153,6cyclictest24183-21apt-get10:05:160
2396099152,7cyclictest24798-21apt-get11:35:180
2396099152,6cyclictest14408-21apt-get12:35:180
2396099152,11cyclictest31916-21apt-get07:30:180
2396099151,9cyclictest30906-21apt-get08:55:200
2396099151,8cyclictest2794-21apt-get10:35:150
2396099150,8cyclictest32126-21apt-get11:55:190
2396099150,5cyclictest15624-21apt-get11:10:160
2396199142,6cyclictest0-21swapper/109:40:151
2396199142,5cyclictest0-21swapper/107:10:181
2396199142,4cyclictest0-21swapper/110:25:201
2396199141,8cyclictest0-21swapper/109:35:161
2396199141,7cyclictest0-21swapper/107:35:171
2396199141,4cyclictest0-21swapper/110:10:151
2396199141,4cyclictest0-21swapper/107:20:141
23961991414,0cyclictest0-21swapper/111:53:071
2396199141,2cyclictest0-21swapper/109:20:001
2396199140,6cyclictest0-21swapper/111:25:221
2396199140,5cyclictest0-21swapper/111:00:181
2396199140,4cyclictest0-21swapper/110:35:151
2396199140,4cyclictest0-21swapper/108:00:171
2396199140,13cyclictest0-21swapper/112:33:031
2396199140,13cyclictest0-21swapper/110:21:281
2396199140,13cyclictest0-21swapper/108:36:401
2396199140,11cyclictest0-21swapper/112:10:431
2396099147,3cyclictest27237-21apt-get08:45:160
2396099146,5cyclictest9527-21/usr/sbin/munin09:25:280
2396099145,8cyclictest22344-21apt-get10:00:160
2396099145,7cyclictest2182-21apt-get09:05:170
2396099145,5cyclictest0-21swapper/010:41:140
2396099144,5cyclictest19910-21apt-get08:25:210
2396099143,9cyclictest13186-21apt-get09:35:160
2396099142,8cyclictest3235-21apt-get07:40:170
2396099142,7cyclictest1553-21apt-get12:00:170
2396099142,6cyclictest14403-21apt-get08:10:160
2396099140,13cyclictest13002-21if_err_ecat012:30:200
2396199133,3cyclictest0-21swapper/108:15:161
2396199132,6cyclictest0-21swapper/110:07:211
2396199132,5cyclictest0-21swapper/108:55:201
2396199131,6cyclictest0-21swapper/112:20:171
2396199130,6cyclictest0-21swapper/111:40:171
2396199130,4cyclictest0-21swapper/109:00:201
2396199130,4cyclictest0-21swapper/108:50:161
2396199130,13cyclictest0-21swapper/107:52:321
2396099135,6cyclictest29681-21apt-get10:20:160
2396099133,7cyclictest8912-21apt-get07:55:190
2396099133,5cyclictest7692-21apt-get09:20:150
2396099133,5cyclictest19296-21apt-get11:20:180
2396099132,7cyclictest3409-21apt-get12:05:190
2396099132,5cyclictest6467-21apt-get10:45:170
2396099132,3cyclictest16235-21apt-get08:15:160
2396099131,8cyclictest28241-21apt-get07:20:140
2396099131,5cyclictest30080-21apt-get07:25:200
2396099131,5cyclictest26406-21apt-get07:15:140
2396099131,10cyclictest22958-21apt-get11:30:170
2396099130,9cyclictest82780irq/129-ecat0-r07:10:170
2396099130,8cyclictest29071-21apt-get08:50:160
2396099130,6cyclictest10748-21apt-get12:25:210
2396099130,4cyclictest12572-21apt-get08:05:150
2396099130,12cyclictest15604-21meminfo09:40:200
84042120,0sleep00-21swapper/012:16:340
2396199124,3cyclictest0-21swapper/110:15:181
2396199123,2cyclictest0-21swapper/109:10:261
2396199122,3cyclictest0-21swapper/107:25:191
2396199121,4cyclictest0-21swapper/108:20:151
2396199121,3cyclictest0-21swapper/107:55:181
2396199121,1cyclictest0-21swapper/109:55:201
23961991210,1cyclictest0-21swapper/108:10:251
2396199120,0cyclictest0-21swapper/109:52:241
2396099125,1cyclictest13796-21apt-get11:05:170
2396099123,8cyclictest25404-21apt-get08:40:160
2396099123,6cyclictest8913-21apt-get12:20:170
2396099122,9cyclictest17461-21apt-get11:15:180
2396099122,8cyclictest5239-21apt-get07:45:130
2396099121,9cyclictest5852-21apt-get09:15:150
2396099121,7cyclictest26628-21apt-get11:40:170
2396099121,5cyclictest11966-21apt-get11:00:180
2396099120,10cyclictest5241-21apt-get12:10:150
2396099120,10cyclictest11357-21apt-get09:30:180
234492121,2sleep10-21swapper/107:06:321
8732110,0sleep1241ktimersoftd/111:55:301
269962110,1sleep10-21swapper/108:44:251
2396199112,4cyclictest0-21swapper/109:05:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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