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2024-07-27 - 14:20

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #c, slot #8

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 rackcslot8s.osadl.org (updated Sat Jul 27, 2024 00:46:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
125391640,5ptp4l0-21swapper/519:05:295
125391630,30ptp4l0-21swapper/119:08:341
1558926050,6sleep30-21swapper/319:08:573
1540425635,6sleep20-21swapper/219:06:302
1547925533,6sleep40-21swapper/419:07:284
125391550,18ptp4l0-21swapper/019:08:130
1551925342,6sleep60-21swapper/619:08:036
1543825038,7sleep70-21swapper/719:06:597
15988993225,4cyclictest1-21systemd19:44:554
125391320,0ptp4l0-21swapper/521:30:405
125391310,0ptp4l0-21swapper/523:08:255
125391310,0ptp4l0-21swapper/120:00:181
125391310,0ptp4l0-21swapper/119:35:151
125391300,3ptp4l0-21swapper/519:20:185
125391300,0ptp4l0-21swapper/521:53:185
125391300,0ptp4l0-21swapper/122:37:201
125391300,0ptp4l0-21swapper/121:13:001
125391300,0ptp4l0-21swapper/100:00:131
125391290,7ptp4l0-21swapper/123:51:551
125391290,0ptp4l0-21swapper/523:48:315
125391290,0ptp4l0-21swapper/522:35:545
125391290,0ptp4l0-21swapper/522:26:445
125391290,0ptp4l0-21swapper/521:55:205
125391290,0ptp4l0-21swapper/521:21:435
125391290,0ptp4l0-21swapper/521:21:425
125391290,0ptp4l0-21swapper/521:11:395
125391290,0ptp4l0-21swapper/500:37:335
125391290,0ptp4l0-21swapper/123:39:341
125391290,0ptp4l0-21swapper/123:17:331
125391290,0ptp4l0-21swapper/122:26:351
125391290,0ptp4l0-21swapper/121:23:141
125391290,0ptp4l0-21swapper/121:23:141
125391290,0ptp4l0-21swapper/100:36:251
125391280,0ptp4l0-21swapper/622:21:186
125391280,0ptp4l0-21swapper/523:27:285
125391280,0ptp4l0-21swapper/523:20:215
125391280,0ptp4l0-21swapper/522:09:465
125391280,0ptp4l0-21swapper/423:50:084
125391280,0ptp4l0-21swapper/123:49:451
125391280,0ptp4l0-21swapper/123:04:001
125391280,0ptp4l0-21swapper/122:11:431
125391280,0ptp4l0-21swapper/122:08:091
125391280,0ptp4l0-21swapper/121:44:391
125391270,1ptp4l15101-21ssh22:49:081
125391270,1ptp4l0-21swapper/523:50:185
125391270,0ptp4l0-21swapper/622:17:166
125391270,0ptp4l0-21swapper/523:39:265
125391270,0ptp4l0-21swapper/521:49:025
125391270,0ptp4l0-21swapper/520:04:545
125391270,0ptp4l0-21swapper/519:25:125
125391270,0ptp4l0-21swapper/123:42:251
125391270,0ptp4l0-21swapper/121:16:581
125391270,0ptp4l0-21swapper/100:32:011
125391270,0ptp4l0-21swapper/022:55:120
125391270,0ptp4l0-21swapper/021:59:480
125391260,4ptp4l0-21swapper/021:16:380
125391260,0ptp4l0-21swapper/523:34:145
125391260,0ptp4l0-21swapper/521:35:325
125391260,0ptp4l0-21swapper/400:26:374
125391260,0ptp4l0-21swapper/400:06:394
125391260,0ptp4l0-21swapper/222:21:332
125391260,0ptp4l0-21swapper/222:18:052
125391260,0ptp4l0-21swapper/100:20:141
125391260,0ptp4l0-21swapper/100:06:551
125391250,1ptp4l30624-21df20:50:111
125391250,1ptp4l27724-21memory00:35:172
125391250,0ptp4l561ktimersoftd/500:01:075
125391250,0ptp4l0-21swapper/523:59:435
125391250,0ptp4l0-21swapper/522:56:205
125391250,0ptp4l0-21swapper/522:49:575
125391250,0ptp4l0-21swapper/522:31:215
125391250,0ptp4l0-21swapper/522:03:175
125391250,0ptp4l0-21swapper/421:10:104
125391250,0ptp4l0-21swapper/420:50:194
125391250,0ptp4l0-21swapper/420:45:104
125391250,0ptp4l0-21swapper/400:12:074
125391250,0ptp4l0-21swapper/123:55:031
125391250,0ptp4l0-21swapper/122:56:371
125391250,0ptp4l0-21swapper/122:51:071
125391250,0ptp4l0-21swapper/122:16:041
125391250,0ptp4l0-21swapper/121:57:471
125391250,0ptp4l0-21swapper/121:47:531
125391250,0ptp4l0-21swapper/121:00:251
125391250,0ptp4l0-21swapper/120:25:221
125391250,0ptp4l0-21swapper/100:27:081
125391250,0ptp4l0-21swapper/021:10:130
125391250,0ptp4l0-21swapper/019:55:170
125391240,1ptp4l31772-21sed19:40:225
125391240,1ptp4l29957-21smartctl21:40:135
125391240,1ptp4l26740-21latency_hist23:05:014
125391240,1ptp4l23900-21df_inode19:25:111
125391240,1ptp4l18131-21/usr/sbin/munin20:20:225
125391240,0ptp4l0-21swapper/523:16:505
125391240,0ptp4l0-21swapper/523:12:155
125391240,0ptp4l0-21swapper/521:15:105
125391240,0ptp4l0-21swapper/520:00:005
125391240,0ptp4l0-21swapper/519:45:215
125391240,0ptp4l0-21swapper/500:23:095
125391240,0ptp4l0-21swapper/500:15:075
125391240,0ptp4l0-21swapper/500:13:395
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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