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2024-06-18 - 07:09

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 - Rack #f/#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.osadl.org (updated Tue Jun 18, 2024 00:50:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
127372585571,9sleep70-21swapper/719:07:327
126962570547,15sleep20-21swapper/219:06:562
128962515491,18sleep50-21swapper/519:09:475
126772513493,14sleep30-21swapper/319:06:403
127492476456,14sleep10-21swapper/119:07:431
127832463436,19sleep40-21swapper/419:08:094
128802440425,10sleep00-21swapper/019:09:330
128322423402,14sleep60-21swapper/619:08:526
603121790,1sleep31335199cyclictest21:25:123
45612920,0sleep30-21swapper/322:30:013
247472740,0sleep20-21swapper/222:05:012
247472740,0sleep20-21swapper/222:05:012
13350996663,1cyclictest27384-21tail00:20:402
13352996462,1cyclictest12974-21needreboot20:30:334
13349996159,1cyclictest8684-21grep22:35:481
13350995755,1cyclictest14792-21unixbench_singl21:40:412
1335299552,40cyclictest0-21swapper/420:53:444
13349995351,1cyclictest6211-21cpuspeed_turbos21:25:141
13349995351,1cyclictest21185-21tr00:10:131
13355995250,1cyclictest18207-21tr21:50:137
13352995048,1cyclictest11207-21tr23:50:154
13349995019,1cyclictest25637-21unixbench_multi20:55:451
13355994947,1cyclictest23614-21tr00:15:157
13355994746,0cyclictest7614-21head21:25:417
13353994745,1cyclictest25295-21tail23:10:325
13352994744,1cyclictest32701-21cpuspeed_turbos22:20:144
13351994745,1cyclictest22401-21tr19:30:153
13350994733,13cyclictest18863-21needreboot21:50:292
13349994745,1cyclictest21983-21tr23:05:141
13349994745,1cyclictest12731-21sh21:40:001
13348994745,1cyclictest15440-21sh00:00:000
13355994644,1cyclictest21023-21grep23:00:387
13350994644,1cyclictest6618-21cron20:19:592
13354994544,0cyclictest27956-21grep22:10:176
13350994521,1cyclictest12383-21cpuspeed_turbos22:45:132
13353994442,1cyclictest30467-21unixbench_singl21:05:465
13353994429,14cyclictest24217-21cpuspeed_turbos20:55:145
13352994443,0cyclictest32183-21cat22:20:004
13350994442,1cyclictest7493-21tr20:20:142
13353994341,1cyclictest28640-21cpuspeed_turbos00:25:135
1335199438,24cyclictest0-21swapper/300:32:303
13351994342,0cyclictest14759-21cpuspeed_turbos22:50:153
13350994340,1cyclictest31021-21cpuspeed_turbos00:30:152
13348994315,1cyclictest280-21systemd-journal21:20:010
13354994240,1cyclictest28621-21tr00:25:136
13354994220,1cyclictest13620-21grep19:10:176
1335399420,20cyclictest0-21swapper/523:20:465
13351994239,1cyclictest19827-21strings19:20:333
13354994139,1cyclictest5020-21cpuspeed_turbos22:30:126
13354994126,14cyclictest13848-21unixbench_singl22:45:416
13350994138,2cyclictest29354-21cpuspeed_turbos23:20:132
13350994128,8cyclictest0-21swapper/219:30:482
13349994116,15cyclictest0-21swapper/122:50:411
13354994039,0cyclictest14807-21unixbench_singl21:40:416
13354994037,2cyclictest24293-21grep20:55:156
13353994036,2cyclictest27951-21cpuspeed_turbos22:10:165
13350994034,5cyclictest6846-21grep22:35:002
13350994018,1cyclictest24715-21cpuspeed_turbos19:35:152
1334999409,28cyclictest0-21swapper/122:41:231
13349994038,1cyclictest10592-21head20:25:331
13349994022,11cyclictest0-21swapper/123:04:371
13354993910,20cyclictest0-21swapper/622:00:466
13354993910,20cyclictest0-21swapper/622:00:466
13353993937,1cyclictest5050-21tr22:30:125
13352993938,0cyclictest988-21tr00:35:164
13352993937,1cyclictest19036-21grep19:20:144
1335199390,1cyclictest280-21systemd-journal20:00:003
1335199390,1cyclictest11696-21grep21:35:323
13350993937,1cyclictest30019-21head00:25:452
13350993937,1cyclictest20539-21grep21:55:142
13350993937,1cyclictest20539-21grep21:55:142
13349993937,1cyclictest30287-21cpuspeed_turbos22:15:131
1334899394,1cyclictest280-21systemd-journal19:45:000
1334899390,1cyclictest21961-21grep00:10:280
13355993836,1cyclictest3900-21wc22:25:417
1335599383,13cyclictest0-21swapper/719:30:447
13354993836,1cyclictest29364-21cut19:55:096
13353993836,1cyclictest4081-21tr23:35:175
13352993837,0cyclictest3835-21tr21:20:134
13352993836,1cyclictest4432-21sh22:30:014
13352993836,1cyclictest27849-21tr22:10:164
13352993836,1cyclictest17015-21grep00:00:344
13352993836,1cyclictest10925-21grep21:35:154
13351993836,1cyclictest2288-21proc_pri21:15:393
13350993836,1cyclictest12242-21grep20:30:142
13349993836,1cyclictest19511-21cpuspeed_turbos20:45:131
13348993836,1cyclictest9841-21tr22:40:140
13348993836,1cyclictest1684-21unixbench_singl22:20:430
13348993823,14cyclictest1305-21ls20:05:430
13355993735,1cyclictest26093-21tr00:20:127
13355993735,1cyclictest20559-21cpuspeed_turbos21:55:147
13355993735,1cyclictest20559-21cpuspeed_turbos21:55:137
13355993735,1cyclictest20164-21wc19:20:427
13355993735,1cyclictest17187-21grep21:45:437
13354993735,1cyclictest5178-21unixbench_multi21:20:416
13354993735,1cyclictest31406-21cpuspeed_turbos21:10:136
13354993735,1cyclictest15020-21tail23:55:436
13354993735,1cyclictest0-21swapper/622:55:456
13352993735,1cyclictest32693-21grep21:10:444
13352993735,1cyclictest23839-21head19:30:494
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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