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2026-05-20 - 00:59

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 376 highest latencies:
System rackcslot8s.osadl.org (updated Tue May 19, 2026 12:46:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111391780,34ptp4l0-21swapper/107:08:021
111391590,5ptp4l0-21swapper/407:09:454
111391590,4ptp4l0-21swapper/007:07:580
144122580,0sleep70-21swapper/712:26:407
29922560,0sleep50-21swapper/511:28:145
146612540,0sleep70-21swapper/709:32:017
385025332,6sleep20-21swapper/207:05:072
561925242,6sleep70-21swapper/707:08:167
542125232,6sleep60-21swapper/607:05:436
108602510,0sleep40-21swapper/412:22:124
548224736,7sleep30-21swapper/307:06:283
542024534,7sleep50-21swapper/507:05:425
111391430,0ptp4l0-21swapper/108:05:111
111391380,0ptp4l0-21swapper/109:42:041
111391350,4ptp4l0-21swapper/111:46:491
111391350,0ptp4l0-21swapper/209:35:232
111391340,0ptp4l0-21swapper/410:10:154
111391340,0ptp4l0-21swapper/110:25:381
111391330,0ptp4l0-21swapper/112:02:301
111391330,0ptp4l0-21swapper/109:50:231
111391330,0ptp4l0-21swapper/109:38:451
111391330,0ptp4l0-21swapper/109:33:021
111391330,0ptp4l0-21swapper/010:58:550
111391330,0ptp4l0-21swapper/010:14:060
111391330,0ptp4l0-21swapper/009:23:250
111391320,0ptp4l0-21swapper/411:37:304
111391320,0ptp4l0-21swapper/410:58:204
111391320,0ptp4l0-21swapper/110:30:281
111391320,0ptp4l0-21swapper/110:30:281
111391320,0ptp4l0-21swapper/108:20:181
111391320,0ptp4l0-21swapper/011:06:530
111391320,0ptp4l0-21swapper/010:04:310
111391310,2ptp4l0-21swapper/111:55:461
111391310,0ptp4l0-21swapper/411:27:054
111391310,0ptp4l0-21swapper/111:09:551
111391310,0ptp4l0-21swapper/110:49:061
111391300,1ptp4l231rcuc/111:16:161
111391300,0ptp4l0-21swapper/311:34:403
111391300,0ptp4l0-21swapper/010:54:260
111391300,0ptp4l0-21swapper/009:30:110
111391290,0ptp4l0-21swapper/209:15:192
111391290,0ptp4l0-21swapper/111:42:381
111391290,0ptp4l0-21swapper/111:32:551
111391290,0ptp4l0-21swapper/110:24:021
111391290,0ptp4l0-21swapper/109:55:341
111391290,0ptp4l0-21swapper/011:42:070
111391290,0ptp4l0-21swapper/010:28:440
111391280,1ptp4l17040-21latency_hist10:20:004
111391280,0ptp4l0-21swapper/409:58:264
111391280,0ptp4l0-21swapper/409:20:584
111391280,0ptp4l0-21swapper/108:25:181
111391280,0ptp4l0-21swapper/012:22:090
111391280,0ptp4l0-21swapper/012:19:400
111391280,0ptp4l0-21swapper/009:59:210
111391280,0ptp4l0-21swapper/009:14:310
111391270,2ptp4l0-21swapper/110:06:241
111391270,0ptp4l0-21swapper/511:14:465
111391270,0ptp4l0-21swapper/511:06:585
111391270,0ptp4l0-21swapper/409:42:474
111391270,0ptp4l0-21swapper/110:18:121
111391270,0ptp4l0-21swapper/109:00:451
111391270,0ptp4l0-21swapper/011:50:400
111391270,0ptp4l0-21swapper/011:18:480
111391270,0ptp4l0-21swapper/009:46:340
111391270,0ptp4l0-21swapper/007:50:560
111391270,0ptp4l0-21swapper/007:13:130
111391260,0ptp4l401ktimersoftd/311:22:223
111391260,0ptp4l0-21swapper/510:55:125
111391260,0ptp4l0-21swapper/510:50:195
111391260,0ptp4l0-21swapper/509:45:145
111391260,0ptp4l0-21swapper/508:10:175
111391260,0ptp4l0-21swapper/410:08:464
111391260,0ptp4l0-21swapper/209:25:112
111391260,0ptp4l0-21swapper/112:25:421
111391260,0ptp4l0-21swapper/111:13:481
111391260,0ptp4l0-21swapper/109:21:031
111391260,0ptp4l0-21swapper/108:47:181
111391260,0ptp4l0-21swapper/108:13:561
111391260,0ptp4l0-21swapper/107:59:171
111391260,0ptp4l0-21swapper/107:59:171
111391260,0ptp4l0-21swapper/011:35:360
111391260,0ptp4l0-21swapper/009:40:110
111391260,0ptp4l0-21swapper/008:15:140
111391250,2ptp4l26571-21timerwakeupswit07:50:204
111391250,1ptp4l4575-21fw_forwarded_lo08:15:121
111391250,1ptp4l30039-21fw_forwarded_lo08:00:121
111391250,1ptp4l1675-21sed09:15:165
111391250,0ptp4l0-21swapper/509:50:205
111391250,0ptp4l0-21swapper/509:31:445
111391250,0ptp4l0-21swapper/509:27:235
111391250,0ptp4l0-21swapper/411:44:564
111391250,0ptp4l0-21swapper/411:23:024
111391250,0ptp4l0-21swapper/408:45:204
111391250,0ptp4l0-21swapper/407:25:134
111391250,0ptp4l0-21swapper/112:35:221
111391250,0ptp4l0-21swapper/111:01:181
111391250,0ptp4l0-21swapper/110:04:041
111391250,0ptp4l0-21swapper/109:15:171
111391250,0ptp4l0-21swapper/107:40:081
111391250,0ptp4l0-21swapper/107:15:201
111391250,0ptp4l0-21swapper/012:39:210
111391250,0ptp4l0-21swapper/011:13:300
111391250,0ptp4l0-21swapper/010:36:060
111391250,0ptp4l0-21swapper/010:30:060
111391250,0ptp4l0-21swapper/010:30:050
111391250,0ptp4l0-21swapper/009:18:520
111391250,0ptp4l0-21swapper/007:15:010
111391240,1ptp4l32016-21/usr/sbin/munin10:40:137
111391240,1ptp4l22891-21df08:55:140
111391240,1ptp4l17594-21cat10:20:134
111391240,0ptp4l25-21ksoftirqd/112:18:211
111391240,0ptp4l16269-21irqrtprio08:40:145
111391240,0ptp4l0-21swapper/610:12:326
111391240,0ptp4l0-21swapper/512:23:015
111391240,0ptp4l0-21swapper/511:01:185
111391240,0ptp4l0-21swapper/510:30:165
111391240,0ptp4l0-21swapper/510:30:165
111391240,0ptp4l0-21swapper/510:15:205
111391240,0ptp4l0-21swapper/508:20:185
111391240,0ptp4l0-21swapper/507:35:125
111391240,0ptp4l0-21swapper/507:15:215
111391240,0ptp4l0-21swapper/412:31:424
111391240,0ptp4l0-21swapper/411:55:164
111391240,0ptp4l0-21swapper/410:45:004
111391240,0ptp4l0-21swapper/409:49:424
111391240,0ptp4l0-21swapper/409:14:014
111391240,0ptp4l0-21swapper/407:56:304
111391240,0ptp4l0-21swapper/407:56:304
111391240,0ptp4l0-21swapper/407:30:194
111391240,0ptp4l0-21swapper/407:10:164
111391240,0ptp4l0-21swapper/311:03:203
111391240,0ptp4l0-21swapper/211:15:482
111391240,0ptp4l0-21swapper/210:12:252
111391240,0ptp4l0-21swapper/109:45:211
111391240,0ptp4l0-21swapper/109:05:131
111391240,0ptp4l0-21swapper/108:50:151
111391240,0ptp4l0-21swapper/108:30:191
111391240,0ptp4l0-21swapper/107:40:001
111391240,0ptp4l0-21swapper/107:20:161
111391240,0ptp4l0-21swapper/012:10:560
111391240,0ptp4l0-21swapper/012:06:280
111391240,0ptp4l0-21swapper/011:45:540
111391240,0ptp4l0-21swapper/009:29:000
111391240,0ptp4l0-21swapper/007:45:370
111391240,0ptp4l0-21swapper/007:42:340
111391230,1ptp4l5110-21missed_timers08:15:174
111391230,1ptp4l29137-21diskmemload10:48:545
111391230,0ptp4l21727-21strings10:25:165
111391230,0ptp4l0-21swapper/711:22:187
111391230,0ptp4l0-21swapper/611:40:166
111391230,0ptp4l0-21swapper/609:35:136
111391230,0ptp4l0-21swapper/512:35:205
111391230,0ptp4l0-21swapper/512:30:135
111391230,0ptp4l0-21swapper/512:25:125
111391230,0ptp4l0-21swapper/512:16:365
111391230,0ptp4l0-21swapper/512:05:185
111391230,0ptp4l0-21swapper/512:00:135
111391230,0ptp4l0-21swapper/511:52:445
111391230,0ptp4l0-21swapper/511:47:405
111391230,0ptp4l0-21swapper/511:38:465
111391230,0ptp4l0-21swapper/511:30:125
111391230,0ptp4l0-21swapper/511:20:155
111391230,0ptp4l0-21swapper/510:10:155
111391230,0ptp4l0-21swapper/510:05:125
111391230,0ptp4l0-21swapper/510:02:365
111391230,0ptp4l0-21swapper/509:20:135
111391230,0ptp4l0-21swapper/509:10:155
111391230,0ptp4l0-21swapper/509:05:135
111391230,0ptp4l0-21swapper/508:55:205
111391230,0ptp4l0-21swapper/508:25:185
111391230,0ptp4l0-21swapper/508:15:205
111391230,0ptp4l0-21swapper/508:00:145
111391230,0ptp4l0-21swapper/507:55:125
111391230,0ptp4l0-21swapper/507:55:125
111391230,0ptp4l0-21swapper/507:40:115
111391230,0ptp4l0-21swapper/507:20:135
111391230,0ptp4l0-21swapper/412:37:304
111391230,0ptp4l0-21swapper/412:15:014
111391230,0ptp4l0-21swapper/412:07:274
111391230,0ptp4l0-21swapper/411:45:204
111391230,0ptp4l0-21swapper/411:17:144
111391230,0ptp4l0-21swapper/411:11:264
111391230,0ptp4l0-21swapper/410:45:164
111391230,0ptp4l0-21swapper/410:35:544
111391230,0ptp4l0-21swapper/410:00:204
111391230,0ptp4l0-21swapper/409:50:144
111391230,0ptp4l0-21swapper/409:26:334
111391230,0ptp4l0-21swapper/409:15:004
111391230,0ptp4l0-21swapper/409:05:004
111391230,0ptp4l0-21swapper/408:55:154
111391230,0ptp4l0-21swapper/408:39:564
111391230,0ptp4l0-21swapper/408:10:224
111391230,0ptp4l0-21swapper/407:45:134
111391230,0ptp4l0-21swapper/407:43:304
111391230,0ptp4l0-21swapper/407:15:104
111391230,0ptp4l0-21swapper/310:40:433
111391230,0ptp4l0-21swapper/211:58:562
111391230,0ptp4l0-21swapper/211:40:162
111391230,0ptp4l0-21swapper/112:30:141
111391230,0ptp4l0-21swapper/112:20:001
111391230,0ptp4l0-21swapper/112:14:091
111391230,0ptp4l0-21swapper/112:05:171
111391230,0ptp4l0-21swapper/111:38:031
111391230,0ptp4l0-21swapper/111:27:401
111391230,0ptp4l0-21swapper/111:20:121
111391230,0ptp4l0-21swapper/110:56:401
111391230,0ptp4l0-21swapper/110:50:161
111391230,0ptp4l0-21swapper/110:14:561
111391230,0ptp4l0-21swapper/109:27:161
111391230,0ptp4l0-21swapper/109:10:171
111391230,0ptp4l0-21swapper/108:40:161
111391230,0ptp4l0-21swapper/107:54:161
111391230,0ptp4l0-21swapper/107:25:221
111391230,0ptp4l0-21swapper/012:27:210
111391230,0ptp4l0-21swapper/011:55:180
111391230,0ptp4l0-21swapper/011:00:540
111391230,0ptp4l0-21swapper/010:20:120
111391230,0ptp4l0-21swapper/010:17:220
111391230,0ptp4l0-21swapper/009:52:240
111391230,0ptp4l0-21swapper/009:00:190
111391230,0ptp4l0-21swapper/008:45:110
111391230,0ptp4l0-21swapper/008:30:120
111391230,0ptp4l0-21swapper/008:25:220
111391230,0ptp4l0-21swapper/007:35:010
111391230,0ptp4l0-21swapper/007:34:340
235852220,0sleep20-21swapper/208:55:192
111391220,2ptp4l0-21swapper/008:42:160
111391220,2ptp4l0-21swapper/008:22:530
111391220,0ptp4l0-21swapper/711:34:167
111391220,0ptp4l0-21swapper/710:46:297
111391220,0ptp4l0-21swapper/710:39:557
111391220,0ptp4l0-21swapper/710:34:547
111391220,0ptp4l0-21swapper/710:34:547
111391220,0ptp4l0-21swapper/709:21:267
111391220,0ptp4l0-21swapper/612:33:026
111391220,0ptp4l0-21swapper/612:13:136
111391220,0ptp4l0-21swapper/611:29:246
111391220,0ptp4l0-21swapper/610:45:186
111391220,0ptp4l0-21swapper/610:44:046
111391220,0ptp4l0-21swapper/609:46:186
111391220,0ptp4l0-21swapper/609:40:046
111391220,0ptp4l0-21swapper/609:25:116
111391220,0ptp4l0-21swapper/609:17:016
111391220,0ptp4l0-21swapper/607:10:226
111391220,0ptp4l0-21swapper/511:55:425
111391220,0ptp4l0-21swapper/511:43:385
111391220,0ptp4l0-21swapper/511:15:205
111391220,0ptp4l0-21swapper/510:43:365
111391220,0ptp4l0-21swapper/510:24:065
111391220,0ptp4l0-21swapper/509:55:195
111391220,0ptp4l0-21swapper/509:41:335
111391220,0ptp4l0-21swapper/509:39:275
111391220,0ptp4l0-21swapper/509:00:225
111391220,0ptp4l0-21swapper/508:50:125
111391220,0ptp4l0-21swapper/508:35:175
111391220,0ptp4l0-21swapper/508:05:165
111391220,0ptp4l0-21swapper/507:25:205
111391220,0ptp4l0-21swapper/412:26:014
111391220,0ptp4l0-21swapper/412:10:164
111391220,0ptp4l0-21swapper/411:50:144
111391220,0ptp4l0-21swapper/411:30:044
111391220,0ptp4l0-21swapper/411:08:564
111391220,0ptp4l0-21swapper/411:01:564
111391220,0ptp4l0-21swapper/410:50:034
111391220,0ptp4l0-21swapper/410:31:254
111391220,0ptp4l0-21swapper/410:31:254
111391220,0ptp4l0-21swapper/409:35:104
111391220,0ptp4l0-21swapper/409:30:154
111391220,0ptp4l0-21swapper/409:05:234
111391220,0ptp4l0-21swapper/407:35:204
111391220,0ptp4l0-21swapper/310:47:103
111391220,0ptp4l0-21swapper/211:04:242
111391220,0ptp4l0-21swapper/209:13:162
111391220,0ptp4l0-21swapper/111:51:301
111391220,0ptp4l0-21swapper/110:44:241
111391220,0ptp4l0-21swapper/110:36:391
111391220,0ptp4l0-21swapper/108:55:201
111391220,0ptp4l0-21swapper/108:35:151
111391220,0ptp4l0-21swapper/107:34:171
111391220,0ptp4l0-21swapper/012:32:200
111391220,0ptp4l0-21swapper/012:03:440
111391220,0ptp4l0-21swapper/011:33:340
111391220,0ptp4l0-21swapper/011:25:150
111391220,0ptp4l0-21swapper/011:23:240
111391220,0ptp4l0-21swapper/010:45:150
111391220,0ptp4l0-21swapper/010:06:120
111391220,0ptp4l0-21swapper/009:35:280
111391220,0ptp4l0-21swapper/009:05:170
111391220,0ptp4l0-21swapper/007:25:140
111391210,0ptp4l24271-21cat07:45:211
111391210,0ptp4l0-21swapper/711:03:027
111391210,0ptp4l0-21swapper/612:18:386
111391210,0ptp4l0-21swapper/611:57:096
111391210,0ptp4l0-21swapper/611:16:286
111391210,0ptp4l0-21swapper/610:22:486
111391210,0ptp4l0-21swapper/512:11:075
111391210,0ptp4l0-21swapper/510:35:155
111391210,0ptp4l0-21swapper/508:30:195
111391210,0ptp4l0-21swapper/412:00:324
111391210,0ptp4l0-21swapper/410:25:464
111391210,0ptp4l0-21swapper/408:30:144
111391210,0ptp4l0-21swapper/408:28:474
111391210,0ptp4l0-21swapper/310:34:483
111391210,0ptp4l0-21swapper/310:34:483
111391210,0ptp4l0-21swapper/309:21:313
111391210,0ptp4l0-21swapper/212:31:522
111391210,0ptp4l0-21swapper/212:18:482
111391210,0ptp4l0-21swapper/210:23:472
111391210,0ptp4l0-21swapper/209:46:252
111391210,0ptp4l0-21swapper/209:34:052
111391210,0ptp4l0-21swapper/208:48:552
111391210,0ptp4l0-21swapper/010:43:280
111391210,0ptp4l0-21swapper/007:55:190
111391210,0ptp4l0-21swapper/007:55:180
111391200,0ptp4l31416-21ssh10:39:312
111391200,0ptp4l0-21swapper/612:39:006
111391200,0ptp4l0-21swapper/611:39:076
111391200,0ptp4l0-21swapper/609:34:066
111391200,0ptp4l0-21swapper/508:46:305
111391200,0ptp4l0-21swapper/507:45:235
111391200,0ptp4l0-21swapper/408:44:374
111391200,0ptp4l0-21swapper/310:39:583
111391200,0ptp4l0-21swapper/211:39:092
111391200,0ptp4l0-21swapper/211:29:302
111391200,0ptp4l0-21swapper/210:55:442
111391200,0ptp4l0-21swapper/210:45:162
111391200,0ptp4l0-21swapper/210:44:022
111391200,0ptp4l0-21swapper/209:40:062
111391200,0ptp4l0-21swapper/208:22:312
111391200,0ptp4l0-21swapper/107:12:561
111391200,0ptp4l0-21swapper/008:38:550
111391190,0ptp4l0-21swapper/611:04:236
111391190,0ptp4l0-21swapper/610:58:586
111391190,0ptp4l0-21swapper/610:39:286
111391190,0ptp4l0-21swapper/407:21:554
111391190,0ptp4l0-21swapper/212:38:492
111391190,0ptp4l0-21swapper/211:24:182
111391190,0ptp4l0-21swapper/211:08:422
111391190,0ptp4l0-21swapper/209:54:002
111391180,0ptp4l0-21swapper/311:36:103
111391180,0ptp4l0-21swapper/310:13:533
111391180,0ptp4l0-21swapper/212:26:152
111391170,2ptp4l0-21swapper/007:22:560
111391170,0ptp4l0-21swapper/609:50:076
111391170,0ptp4l0-21swapper/408:07:024
111391170,0ptp4l0-21swapper/212:13:112
111391170,0ptp4l0-21swapper/207:18:152
607099161,2cyclictest0-21swapper/608:40:146
111391160,0ptp4l0-21swapper/611:24:196
111391160,0ptp4l0-21swapper/507:50:455
111391160,0ptp4l0-21swapper/408:52:274
111391160,0ptp4l0-21swapper/408:00:524
111391160,0ptp4l0-21swapper/208:35:222
111391160,0ptp4l0-21swapper/008:10:590
111391160,0ptp4l0-21swapper/008:06:540
111391150,0ptp4l0-21swapper/711:35:027
111391150,0ptp4l0-21swapper/709:07:557
111391150,0ptp4l0-21swapper/709:03:587
111391150,0ptp4l0-21swapper/708:41:407
111391150,0ptp4l0-21swapper/609:13:176
111391150,0ptp4l0-21swapper/609:02:556
111391150,0ptp4l0-21swapper/608:55:516
111391150,0ptp4l0-21swapper/608:35:236
111391150,0ptp4l0-21swapper/608:33:126
111391150,0ptp4l0-21swapper/608:20:496
111391150,0ptp4l0-21swapper/607:35:446
111391150,0ptp4l0-21swapper/607:16:366
111391150,0ptp4l0-21swapper/507:30:585
111391150,0ptp4l0-21swapper/507:12:015
111391150,0ptp4l0-21swapper/408:20:374
111391150,0ptp4l0-21swapper/309:07:533
111391150,0ptp4l0-21swapper/309:03:563
111391150,0ptp4l0-21swapper/307:29:323
111391150,0ptp4l0-21swapper/209:05:312
111391150,0ptp4l0-21swapper/209:02:572
111391150,0ptp4l0-21swapper/208:33:572
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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