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2023-01-29 - 17:08

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, slot #3

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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ARM Broadcom BCM2835 @1400 MHz, Linux 4.18.16-rt9 (Profile)

Latency plot of shadow in rack #7, slot #3
Data to construct the above plot have been generated using the RT test utility cyclictest.
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 rack7slot3s.osadl.org (updated Sun Jan 29, 2023 12:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
84222950,2sleep00-21swapper/009:37:180
291082950,2sleep10-21swapper/112:05:511
7882997735,20cyclictest6853-21latency08:36:161
5482760,3sleep1547-21ssh10:49:301
146642760,2sleep30-21swapper/309:46:113
265672740,6sleep1788299cyclictest11:21:221
319212730,2sleep30-21swapper/309:26:263
7882997237,15cyclictest10542-21ls08:46:171
7881997239,6cyclictest6262-21latency_hist08:35:530
7881997239,6cyclictest6262-21latency_hist08:35:530
788199723,55cyclictest0-21swapper/008:10:530
788199723,55cyclictest0-21swapper/008:10:530
7881997231,20cyclictest0-21swapper/011:10:520
7882997033,18cyclictest23414-21/usr/sbin/munin07:51:241
7882997029,21cyclictest22993-21latency_hist09:15:541
7881997043,15cyclictest12943-21unixbench_singl08:51:270
7882996931,17cyclictest23699-21sed09:16:161
788199693,41cyclictest0-21swapper/010:56:140
788199692,56cyclictest0-21swapper/010:35:530
788199691,57cyclictest13407-21fschecks_count12:26:180
7882996832,20cyclictest11785-21ssh10:22:051
788299682,4cyclictest0-21swapper/111:36:111
7882996738,22cyclictest31141-21ssh10:06:161
7882996733,20cyclictest14855-21/usr/sbin/munin11:46:271
7882996732,20cyclictest25590-21ssh10:40:381
7882996732,11cyclictest1736-21ssh10:51:101
7882996727,12cyclictest27302-21ssh09:21:111
7882996725,13cyclictest32327-21switchtime08:16:231
788199678,36cyclictest0-21swapper/008:16:250
788199677,44cyclictest9121-21acpi12:21:080
788199677,44cyclictest9121-21acpi12:21:080
788199671,52cyclictest0-21swapper/010:30:040
7882996626,24cyclictest31933-21ssh09:26:271
7882996625,14cyclictest20585-21ssh09:11:331
788199661,54cyclictest0-21swapper/011:36:160
262932660,2sleep30-21swapper/310:00:523
189652660,5sleep1788299cyclictest11:51:421
99632650,2sleep30-21swapper/311:41:173
7882996530,13cyclictest26963-21sed08:01:261
7881996537,16cyclictest0-21swapper/009:46:190
7881996535,13cyclictest7474-21unixbench_multi08:36:240
7881996534,16cyclictest24049-21systemd-journal10:25:520
788199651,50cyclictest10892-21head07:16:240
7882996435,20cyclictest9068-21rm12:21:031
7882996435,20cyclictest9068-21rm12:21:031
7882996429,18cyclictest4989-21ssh10:14:261
7882996427,13cyclictest4688-21ssh11:35:111
7882996426,15cyclictest11845-21aten_rbpower_en08:51:121
7882996424,17cyclictest10862-21unixbench_singl11:41:291
788199647,38cyclictest18530-21sh07:40:520
788199642,49cyclictest0-21swapper/009:56:170
788199642,47cyclictest0-21swapper/010:10:290
788199642,46cyclictest0-21swapper/012:01:160
92192630,2sleep39223-21sed11:40:533
7882996327,14cyclictest11175-21sh11:01:461
7882996327,14cyclictest11175-21sh11:01:461
7882996327,12cyclictest13260-21cut12:26:151
7882996324,12cyclictest5617-21grep08:31:281
7882996324,12cyclictest5617-21grep08:31:281
7881996333,15cyclictest21774-21missed_timers12:36:200
788199631,50cyclictest10274-21fschecks_time08:46:140
788199631,50cyclictest0-21swapper/007:50:150
788199631,49cyclictest0-21swapper/011:20:530
788199631,49cyclictest0-21swapper/011:20:530
7882996231,12cyclictest13905-21ssh09:45:131
7882996229,15cyclictest15124-21ssh11:06:431
7882996228,14cyclictest17142-21/usr/sbin/munin12:31:111
7882996227,13cyclictest22169-21wc12:36:261
7882996223,22cyclictest4419-21ssh12:15:261
7881996242,9cyclictest23367-21unixbench_singl10:36:270
7881996233,15cyclictest1133-21runrttasks11:24:380
788199621,48cyclictest0-21swapper/011:30:590
788299616,26cyclictest0-21swapper/108:11:081
7882996132,18cyclictest25130-21ssh09:58:411
7882996132,15cyclictest7300-21ssh12:18:061
7882996132,12cyclictest17316-21ssh10:30:011
7882996129,20cyclictest25347-21unixbench_singl07:56:281
7882996129,11cyclictest28354-21ssh10:43:151
7882996127,20cyclictest8393-21rm10:59:081
7881996137,10cyclictest0-21swapper/008:11:250
788199611,46cyclictest1952-21fschecks_count10:51:140
7882996032,17cyclictest17261-21dpkg09:05:561
7882996030,14cyclictest5609-21ssh09:34:371
7882996030,14cyclictest437-21ssh12:10:291
7882996028,23cyclictest18892-21diskmemload11:57:201
7882996020,24cyclictest20802-21sh09:53:051
7881996037,12cyclictest7850irq/56-dwc_otg07:56:170
788199601,49cyclictest3989-21unixbench_singl09:31:340
7882995927,15cyclictest1131-21gpgv11:30:531
7882995926,12cyclictest8810-21ssh10:19:041
7882995926,11cyclictest8220-21chrt09:36:551
7882995919,22cyclictest7850irq/56-dwc_otg08:26:201
788199591,48cyclictest31322-21aten_rbpower_vo09:26:170
788199591,43cyclictest26169-21grep10:41:110
788199591,43cyclictest1133-21runrttasks11:01:190
788199591,43cyclictest1133-21runrttasks11:01:190
788199591,39cyclictest5852-21/usr/sbin/munin12:16:200
7882995832,11cyclictest25116-21ssh11:20:191
7882995832,11cyclictest25116-21ssh11:20:191
7882995827,11cyclictest11190-21taskset07:19:451
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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