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2025-04-24 - 15:41

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #9, slot #4

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 all highest latencies:
System rack9slot4s (updated Thu Apr 24, 2025 12:59:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
64919912381224,11cyclictest0-21swapper/107:25:081
64012706609,81sleep10-21swapper/107:24:401
47712499451,31sleep00-21swapper/007:20:130
649099224200,6cyclictest0-21swapper/007:40:240
649099189180,6cyclictest0-21swapper/007:25:080
141402950,9sleep1649199cyclictest07:40:291
43122620,20sleep0649099cyclictest12:00:140
649199441,6cyclictest18638-21awk07:55:011
6491994121,5cyclictest22-21ksoftirqd/110:30:201
6491994117,6cyclictest22-21ksoftirqd/107:30:251
649199401,7cyclictest22-21ksoftirqd/111:20:141
6491993919,9cyclictest22-21ksoftirqd/112:10:081
649199391,7cyclictest22-21ksoftirqd/111:55:321
649199391,7cyclictest22-21ksoftirqd/109:20:241
649199391,7cyclictest22-21ksoftirqd/108:40:361
649199391,6cyclictest22-21ksoftirqd/110:50:141
6490993917,6cyclictest11912-21ntp_states07:35:250
649199381,7cyclictest22-21ksoftirqd/108:30:251
649199381,6cyclictest22-21ksoftirqd/110:20:271
235812381,5sleep16204-21gdbus11:19:161
649199371,6cyclictest22-21ksoftirqd/111:00:271
649199371,6cyclictest22-21ksoftirqd/108:15:281
6491993715,6cyclictest22-21ksoftirqd/112:30:121
649199371,4cyclictest81rcu_preempt12:20:001
70722361,5sleep16203-21packagekitd10:26:531
649199366,5cyclictest81rcu_preempt09:35:211
649199361,6cyclictest22-21ksoftirqd/111:50:131
649199361,5cyclictest22-21ksoftirqd/112:50:161
649199361,4cyclictest81rcu_preempt11:40:121
6491993613,4cyclictest81rcu_preempt12:20:231
649199361,11cyclictest3020-21runrttasks10:40:321
6490993611,4cyclictest27183-21munin-run09:50:000
649199358,6cyclictest22-21ksoftirqd/109:55:121
649199353,4cyclictest81rcu_preempt08:45:141
649199353,4cyclictest81rcu_preempt08:25:131
649199351,4cyclictest81rcu_preempt12:35:121
6491993514,9cyclictest22-21ksoftirqd/108:01:351
6491993511,4cyclictest81rcu_preempt10:00:241
649099351,10cyclictest81rcu_preempt10:48:420
649199348,4cyclictest81rcu_preempt09:07:501
649199344,4cyclictest81rcu_preempt10:10:221
649199343,21cyclictest0-21swapper/111:46:501
649199341,6cyclictest22-21ksoftirqd/108:50:301
6491993413,6cyclictest22-21ksoftirqd/112:40:241
6491993411,4cyclictest81rcu_preempt09:15:351
649099346,5cyclictest81rcu_preempt12:30:230
649099345,13cyclictest2220-21dbus-daemon10:57:120
649099341,13cyclictest14213-21fschecks_time10:50:120
281142341,28sleep128155-21ntp_states09:50:201
649199337,4cyclictest81rcu_preempt07:45:131
649199334,9cyclictest22-21ksoftirqd/109:12:551
649099331,20cyclictest12468-21timerwakeupswit10:40:320
649099331,19cyclictest22531-21iostat11:15:170
649099331,11cyclictest81rcu_preempt08:59:460
649099331,11cyclictest81rcu_preempt08:59:450
36992333,6sleep00-21swapper/011:58:340
97632321,4sleep19766-21irqstats08:55:291
97632321,4sleep19766-21irqstats08:55:291
649199323,5cyclictest81rcu_preempt10:35:261
6491993217,11cyclictest22-21ksoftirqd/107:40:001
6491993215,6cyclictest22-21ksoftirqd/108:06:271
6491993214,4cyclictest40950irq/93-i91510:48:461
6491993212,7cyclictest22-21ksoftirqd/111:35:321
649099329,7cyclictest8286-21cut10:30:190
649099323,17cyclictest0-21swapper/009:03:450
6490993213,6cyclictest8748-21df07:30:020
323282321,5sleep00-21swapper/011:48:540
649199312,4cyclictest81rcu_preempt11:09:301
6491993110,4cyclictest81rcu_preempt12:00:261
649099313,15cyclictest0-21swapper/007:55:080
649099311,4cyclictest81rcu_preempt10:07:590
6490993112,6cyclictest25541-21python08:10:330
6490993110,4cyclictest0-21swapper/008:20:240
6490993110,4cyclictest0-21swapper/008:20:240
649099310,4cyclictest81rcu_preempt09:51:140
649199305,4cyclictest81rcu_preempt09:25:151
649199305,4cyclictest81rcu_preempt08:13:251
649199304,4cyclictest81rcu_preempt10:58:101
649199304,3cyclictest81rcu_preempt12:28:141
649199304,10cyclictest22-21ksoftirqd/110:17:551
649199303,4cyclictest81rcu_preempt08:20:271
649199303,4cyclictest81rcu_preempt08:20:261
6491993017,10cyclictest22-21ksoftirqd/112:47:011
649199301,5cyclictest81rcu_preempt09:40:431
649099305,21cyclictest0-21swapper/011:41:590
649099302,13cyclictest2220-21dbus-daemon11:09:330
649099301,4cyclictest81rcu_preempt12:10:440
649099301,4cyclictest81rcu_preempt11:28:400
6490993011,6cyclictest28069-21awk11:35:000
649099301,15cyclictest16652-21wget12:40:150
649099300,4cyclictest81rcu_preempt08:27:410
277002301,5sleep00-21swapper/008:15:320
649199293,4cyclictest81rcu_preempt07:56:221
649199292,5cyclictest81rcu_preempt08:35:241
649199291,4cyclictest81rcu_preempt10:07:321
649199291,4cyclictest81rcu_preempt09:30:201
649199291,4cyclictest81rcu_preempt09:00:121
6491992911,5cyclictest40950irq/93-i91509:50:001
649099298,5cyclictest81rcu_preempt09:35:200
649099298,19cyclictest0-21swapper/008:54:270
649099297,6cyclictest0-21swapper/012:17:400
649099293,13cyclictest1818-21diskstats08:35:160
649099292,4cyclictest81rcu_preempt09:05:280
649099292,14cyclictest6416-21python08:45:290
649099292,14cyclictest20746-21runrttasks12:54:230
6490992912,6cyclictest3997-21taskset10:15:270
6490992912,5cyclictest988-21/usr/sbin/munin11:50:250
25292291,5sleep00-21swapper/010:11:160
161342291,5sleep00-21swapper/009:11:050
124972291,5sleep00-21swapper/012:28:330
649199289,4cyclictest22-21ksoftirqd/111:10:081
649199281,4cyclictest81rcu_preempt11:30:071
649099282,13cyclictest5515-21perl10:20:160
649099282,12cyclictest17280-21iostat_ios09:15:240
649099281,9cyclictest0-21swapper/009:30:160
649099281,4cyclictest81rcu_preempt09:27:410
649099281,23cyclictest21792-21munin-run11:15:000
63302281,5sleep00-21swapper/012:09:440
61502281,5sleep10-21swapper/112:07:521
295742281,5sleep00-21swapper/011:36:260
264142281,5sleep00-21swapper/009:43:420
253612281,5sleep00-21swapper/011:23:050
241022281,5sleep00-21swapper/008:07:280
219652281,5sleep00-21swapper/008:00:370
188622281,5sleep00-21swapper/011:00:410
649099279,7cyclictest32131-21aten_r4power_cu08:30:160
649099271,4cyclictest81rcu_preempt10:37:560
649099271,16cyclictest0-21swapper/010:00:240
6490992710,5cyclictest4710-21sed08:40:390
6490992710,4cyclictest0-21swapper/007:45:170
260312271,5sleep10-21swapper/111:28:351
202002271,5sleep00-21swapper/009:24:120
186292271,5sleep00-21swapper/012:46:510
161312271,5sleep00-21swapper/012:37:220
649099261,13cyclictest29263-21grep09:55:120
182532261,5sleep00-21swapper/007:51:090
649099259,5cyclictest3-21ksoftirqd/010:25:160
649099251,16cyclictest0-21swapper/012:20:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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