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2023-10-05 - 00:41

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #c, 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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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rackcslot3s (updated Wed Oct 04, 2023 12:50:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3982513485,20sleep40-21swapper/407:09:384
326542505488,11sleep30-21swapper/307:06:403
326202505484,15sleep70-21swapper/707:06:127
325922496474,15sleep60-21swapper/607:05:466
317402492465,19sleep50-21swapper/507:05:305
326622487466,15sleep20-21swapper/207:06:472
4252470450,14sleep10-21swapper/107:09:591
309022414393,15sleep00-21swapper/007:05:170
59682900,0sleep60-21swapper/609:35:016
896996260,1cyclictest22528-21unixbench_singl12:20:484
897995653,2cyclictest17480-21grep12:10:475
892995654,1cyclictest7374-21tr10:45:230
892995654,1cyclictest19562-21grep11:10:230
893995411,30cyclictest0-21swapper/112:00:461
899995140,8cyclictest121rcu_sched11:40:017
893995048,1cyclictest23553-21tr12:25:251
899994939,4cyclictest121rcu_sched11:55:207
897994947,1cyclictest13768-21cpuspeed_turbos12:05:245
893994945,3cyclictest2155-21latency_hist08:19:591
892994947,1cyclictest13623-21tr09:50:220
897994846,1cyclictest24348-21tr11:20:215
894994644,1cyclictest5995-21sh07:19:592
897994543,1cyclictest23679-21cron11:20:005
896994430,13cyclictest27220-21unixbench_multi12:30:424
894994443,0cyclictest22015-21tr09:00:232
892994442,1cyclictest27630-21sh12:35:000
892994441,1cyclictest11885-21sh08:39:590
89399436,26cyclictest0-21swapper/110:25:371
899994240,1cyclictest19959-21unixbench_singl07:45:587
898994240,1cyclictest5168-21grep11:45:456
897994239,2cyclictest9712-21find11:55:375
893994240,1cyclictest5083-21cpuspeed_turbos10:40:231
892994240,1cyclictest8745-21cpuspeed_turbos11:55:200
899994134,6cyclictest0-21swapper/709:30:247
895994140,0cyclictest30384-21cpuspeed_turbos10:25:243
895994139,1cyclictest31424-21cpuspeed_turbos11:35:233
894994139,1cyclictest21908-21grep11:15:222
892994139,1cyclictest6048-21cat07:20:000
897994038,1cyclictest13755-21grep07:35:205
898993937,1cyclictest18510-21grep07:45:266
897993937,1cyclictest24626-21tr09:05:235
896993937,1cyclictest10194-21timerandwakeup07:25:444
894993937,1cyclictest24861-21unixbench_multi12:25:452
894993937,1cyclictest23987-21needreboot07:55:382
893993936,1cyclictest15513-21sh07:39:591
899993837,0cyclictest1736-21tr09:25:247
899993836,1cyclictest4882-21wc11:45:427
898993836,1cyclictest11447-21cut07:30:236
897993836,1cyclictest29991-21cat09:15:355
897993836,1cyclictest2669-21cpuspeed_turbos10:35:245
897993835,1cyclictest24679-21unixbench_singl07:55:475
896993836,1cyclictest18671-21cpuspeed_turbos12:15:244
895993836,1cyclictest6730-21latency11:50:293
895993836,1cyclictest29431-21sed08:05:513
895993836,1cyclictest20968-21tr07:50:213
89399389,20cyclictest0-21swapper/110:03:521
89399384,19cyclictest0-21swapper/111:50:401
893993836,1cyclictest32513-21wc11:35:411
893993836,1cyclictest21881-21cpuspeed_turbos11:15:231
893993815,10cyclictest0-21swapper/110:59:291
899993735,1cyclictest24086-21cat09:05:017
89899374,18cyclictest0-21swapper/607:15:006
898993735,1cyclictest6216-21cpuspeed_turbos11:50:226
898993735,1cyclictest28454-21sh11:30:016
898993735,1cyclictest18336-21tail11:05:426
898993735,1cyclictest12839-21grep10:55:326
89899372,16cyclictest0-21swapper/610:10:426
89899372,16cyclictest0-21swapper/610:10:416
89899370,36cyclictest0-21swapper/611:40:436
89899370,1cyclictest0-21swapper/607:50:316
896993735,1cyclictest1670-21grep10:30:484
896993735,1cyclictest10132-21grep09:40:484
896993735,1cyclictest0-21swapper/408:35:264
896993735,1cyclictest0-21swapper/408:10:474
895993736,0cyclictest0-21swapper/307:10:223
895993735,1cyclictest14422-21cat12:05:353
894993735,1cyclictest1143-21ps10:30:412
89499370,1cyclictest0-21swapper/208:30:242
893993735,1cyclictest25703-21unixbench_multi11:20:421
893993735,1cyclictest15447-21grep11:00:401
892993735,1cyclictest355-21cpuspeed_turbos08:15:250
892993735,1cyclictest25020-21sh08:00:000
892993735,1cyclictest0-21swapper/011:40:250
899993635,0cyclictest1409-21cat10:30:477
898993634,1cyclictest6698-21tr07:20:206
898993634,1cyclictest31500-21grep11:35:236
898993634,1cyclictest28076-21cpuspeed_turbos08:05:246
897993634,1cyclictest17892-21grep10:00:015
89799360,0cyclictest0-21swapper/510:05:225
89799360,0cyclictest0-21swapper/510:05:225
895993634,1cyclictest31721-21tr09:20:223
89599360,0cyclictest0-21swapper/308:50:523
894993634,1cyclictest15700-21wc09:55:012
894993633,1cyclictest4534-21latency_hist10:40:002
894993621,1cyclictest6041-21ls08:25:372
89499360,1cyclictest0-21swapper/212:35:352
893993635,1cyclictest0-21swapper/112:30:421
893993635,0cyclictest6742-21grep08:25:471
893993634,1cyclictest28597-21grep10:20:351
893993634,1cyclictest27413-21cat10:20:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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