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2026-08-21 - 20:53

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 Fri Aug 21, 2026 12:46:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111391630,6ptp4l0-21swapper/007:08:420
111391610,5ptp4l0-21swapper/407:08:414
728825747,6sleep20-21swapper/207:06:472
722025735,17sleep70-21swapper/707:05:547
60552560,0sleep10-21swapper/110:05:131
1881915634,7phc2sys0-21swapper/107:09:051
322132540,0sleep60-21swapper/611:29:556
730924938,7sleep30-21swapper/307:07:043
739324736,7sleep50-21swapper/507:08:105
718124534,6sleep60-21swapper/607:05:226
111391330,4ptp4l0-21swapper/410:45:144
111391330,4ptp4l0-21swapper/410:45:144
111391310,0ptp4l18045-21ps08:40:151
111391310,0ptp4l0-21swapper/111:48:061
111391300,0ptp4l0-21swapper/411:45:524
111391300,0ptp4l0-21swapper/410:07:144
111391290,0ptp4l0-21swapper/712:02:247
111391290,0ptp4l0-21swapper/511:53:195
111391290,0ptp4l0-21swapper/409:52:564
111391290,0ptp4l0-21swapper/111:28:511
111391290,0ptp4l0-21swapper/011:36:300
111391290,0ptp4l0-21swapper/009:50:220
111391280,2ptp4l0-21swapper/411:15:564
111391280,0ptp4l0-21swapper/711:31:537
111391280,0ptp4l0-21swapper/512:29:565
111391280,0ptp4l0-21swapper/512:09:125
111391280,0ptp4l0-21swapper/507:15:005
111391280,0ptp4l0-21swapper/412:33:314
111391280,0ptp4l0-21swapper/411:43:384
111391280,0ptp4l0-21swapper/411:05:164
111391280,0ptp4l0-21swapper/410:18:104
111391280,0ptp4l0-21swapper/109:37:381
111391280,0ptp4l0-21swapper/010:40:140
111391280,0ptp4l0-21swapper/010:08:140
111391280,0ptp4l0-21swapper/008:53:470
111391270,3ptp4l0-21swapper/112:38:431
111391270,0ptp4l0-21swapper/510:49:105
111391270,0ptp4l0-21swapper/510:49:095
111391270,0ptp4l0-21swapper/510:39:395
111391270,0ptp4l0-21swapper/510:30:025
111391270,0ptp4l0-21swapper/509:11:315
111391270,0ptp4l0-21swapper/411:20:174
111391270,0ptp4l0-21swapper/410:43:364
111391270,0ptp4l0-21swapper/410:32:294
111391270,0ptp4l0-21swapper/112:17:271
111391270,0ptp4l0-21swapper/111:53:381
111391270,0ptp4l0-21swapper/012:26:470
111391270,0ptp4l0-21swapper/010:12:500
111391270,0ptp4l0-21swapper/008:10:120
111391270,0ptp4l0-21swapper/008:10:110
111391260,2ptp4l0-21swapper/510:19:445
111391260,0ptp4l0-21swapper/711:22:367
111391260,0ptp4l0-21swapper/512:12:275
111391260,0ptp4l0-21swapper/511:28:495
111391260,0ptp4l0-21swapper/412:38:124
111391260,0ptp4l0-21swapper/412:08:394
111391260,0ptp4l0-21swapper/412:04:064
111391260,0ptp4l0-21swapper/411:35:394
111391260,0ptp4l0-21swapper/410:22:524
111391260,0ptp4l0-21swapper/410:04:414
111391260,0ptp4l0-21swapper/409:48:254
111391260,0ptp4l0-21swapper/409:05:194
111391260,0ptp4l0-21swapper/407:10:114
111391260,0ptp4l0-21swapper/311:31:543
111391260,0ptp4l0-21swapper/109:54:481
111391260,0ptp4l0-21swapper/012:20:480
111391260,0ptp4l0-21swapper/012:08:040
111391260,0ptp4l0-21swapper/011:59:530
111391260,0ptp4l0-21swapper/011:43:400
111391260,0ptp4l0-21swapper/011:17:320
111391260,0ptp4l0-21swapper/010:17:450
111391260,0ptp4l0-21swapper/009:25:460
111391250,2ptp4l31663-21cpuspeed_turbos08:00:120
111391250,1ptp4l28308-21/usr/sbin/munin07:50:190
111391250,1ptp4l0-21swapper/408:43:544
111391250,0ptp4l0-21swapper/709:33:007
111391250,0ptp4l0-21swapper/610:39:156
111391250,0ptp4l0-21swapper/510:56:525
111391250,0ptp4l0-21swapper/507:55:135
111391250,0ptp4l0-21swapper/412:26:144
111391250,0ptp4l0-21swapper/411:59:354
111391250,0ptp4l0-21swapper/411:33:564
111391250,0ptp4l0-21swapper/411:25:124
111391250,0ptp4l0-21swapper/411:00:174
111391250,0ptp4l0-21swapper/410:58:014
111391250,0ptp4l0-21swapper/410:10:114
111391250,0ptp4l0-21swapper/309:30:193
111391250,0ptp4l0-21swapper/111:55:261
111391250,0ptp4l0-21swapper/111:12:591
111391250,0ptp4l0-21swapper/107:15:151
111391250,0ptp4l0-21swapper/012:38:150
111391250,0ptp4l0-21swapper/011:45:120
111391250,0ptp4l0-21swapper/010:33:140
111391250,0ptp4l0-21swapper/010:04:540
111391250,0ptp4l0-21swapper/009:42:460
111391250,0ptp4l0-21swapper/009:13:570
111391240,1ptp4l8292-21diskstats07:10:110
111391240,1ptp4l6026-21latency_hist12:25:001
111391240,1ptp4l20922-21smart_sda08:45:180
111391240,1ptp4l19281-21yum11:55:245
111391240,0ptp4l0-21swapper/609:19:146
111391240,0ptp4l0-21swapper/511:25:015
111391240,0ptp4l0-21swapper/510:26:025
111391240,0ptp4l0-21swapper/509:37:015
111391240,0ptp4l0-21swapper/508:05:015
111391240,0ptp4l0-21swapper/507:15:015
111391240,0ptp4l0-21swapper/411:54:154
111391240,0ptp4l0-21swapper/411:12:194
111391240,0ptp4l0-21swapper/410:25:114
111391240,0ptp4l0-21swapper/409:30:094
111391240,0ptp4l0-21swapper/409:29:044
111391240,0ptp4l0-21swapper/409:23:404
111391240,0ptp4l0-21swapper/408:50:154
111391240,0ptp4l0-21swapper/408:15:154
111391240,0ptp4l0-21swapper/311:22:553
111391240,0ptp4l0-21swapper/110:33:281
111391240,0ptp4l0-21swapper/110:30:001
111391240,0ptp4l0-21swapper/110:19:481
111391240,0ptp4l0-21swapper/012:35:000
111391240,0ptp4l0-21swapper/012:15:190
111391240,0ptp4l0-21swapper/011:00:160
111391240,0ptp4l0-21swapper/010:50:140
111391240,0ptp4l0-21swapper/010:46:010
111391240,0ptp4l0-21swapper/010:46:010
111391240,0ptp4l0-21swapper/010:27:470
111391240,0ptp4l0-21swapper/010:20:200
111391240,0ptp4l0-21swapper/009:48:290
111391240,0ptp4l0-21swapper/008:20:140
111391230,1ptp4l31823-21df_inode12:15:114
111391230,1ptp4l1061-21snmpd10:47:311
111391230,1ptp4l1061-21snmpd10:47:301
111391230,0ptp4l0-21swapper/709:41:557
111391230,0ptp4l0-21swapper/611:14:596
111391230,0ptp4l0-21swapper/512:20:125
111391230,0ptp4l0-21swapper/512:19:555
111391230,0ptp4l0-21swapper/511:19:375
111391230,0ptp4l0-21swapper/509:58:075
111391230,0ptp4l0-21swapper/509:45:125
111391230,0ptp4l0-21swapper/508:40:165
111391230,0ptp4l0-21swapper/508:30:145
111391230,0ptp4l0-21swapper/412:20:194
111391230,0ptp4l0-21swapper/410:50:104
111391230,0ptp4l0-21swapper/410:35:124
111391230,0ptp4l0-21swapper/409:55:124
111391230,0ptp4l0-21swapper/409:40:154
111391230,0ptp4l0-21swapper/409:15:194
111391230,0ptp4l0-21swapper/409:00:134
111391230,0ptp4l0-21swapper/408:45:144
111391230,0ptp4l0-21swapper/408:35:144
111391230,0ptp4l0-21swapper/408:25:144
111391230,0ptp4l0-21swapper/408:10:184
111391230,0ptp4l0-21swapper/408:10:184
111391230,0ptp4l0-21swapper/407:45:124
111391230,0ptp4l0-21swapper/407:40:114
111391230,0ptp4l0-21swapper/407:30:104
111391230,0ptp4l0-21swapper/407:20:154
111391230,0ptp4l0-21swapper/208:10:142
111391230,0ptp4l0-21swapper/208:10:132
111391230,0ptp4l0-21swapper/112:30:121
111391230,0ptp4l0-21swapper/112:25:101
111391230,0ptp4l0-21swapper/112:05:141
111391230,0ptp4l0-21swapper/111:20:121
111391230,0ptp4l0-21swapper/110:55:131
111391230,0ptp4l0-21swapper/109:57:341
111391230,0ptp4l0-21swapper/109:45:121
111391230,0ptp4l0-21swapper/109:29:241
111391230,0ptp4l0-21swapper/109:10:141
111391230,0ptp4l0-21swapper/108:55:131
111391230,0ptp4l0-21swapper/108:30:131
111391230,0ptp4l0-21swapper/108:10:221
111391230,0ptp4l0-21swapper/108:10:221
111391230,0ptp4l0-21swapper/108:00:121
111391230,0ptp4l0-21swapper/107:55:171
111391230,0ptp4l0-21swapper/107:50:161
111391230,0ptp4l0-21swapper/107:50:011
111391230,0ptp4l0-21swapper/012:13:360
111391230,0ptp4l0-21swapper/011:30:330
111391230,0ptp4l0-21swapper/011:20:160
111391230,0ptp4l0-21swapper/011:10:230
111391230,0ptp4l0-21swapper/011:05:580
111391230,0ptp4l0-21swapper/010:35:130
111391230,0ptp4l0-21swapper/009:20:160
111391230,0ptp4l0-21swapper/009:15:140
111391230,0ptp4l0-21swapper/009:05:120
111391230,0ptp4l0-21swapper/009:00:120
111391230,0ptp4l0-21swapper/008:15:150
111391230,0ptp4l0-21swapper/007:45:110
111391230,0ptp4l0-21swapper/007:40:010
111391230,0ptp4l0-21swapper/007:35:190
111391230,0ptp4l0-21swapper/007:30:180
111391230,0ptp4l0-21swapper/007:20:120
111391220,0ptp4l32050-21sh11:29:262
111391220,0ptp4l0-21swapper/611:54:296
111391220,0ptp4l0-21swapper/609:10:436
111391220,0ptp4l0-21swapper/512:30:115
111391220,0ptp4l0-21swapper/511:49:445
111391220,0ptp4l0-21swapper/511:40:585
111391220,0ptp4l0-21swapper/511:12:555
111391220,0ptp4l0-21swapper/510:52:395
111391220,0ptp4l0-21swapper/510:40:325
111391220,0ptp4l0-21swapper/510:12:245
111391220,0ptp4l0-21swapper/510:08:455
111391220,0ptp4l0-21swapper/510:00:375
111391220,0ptp4l0-21swapper/509:51:585
111391220,0ptp4l0-21swapper/509:44:315
111391220,0ptp4l0-21swapper/509:34:535
111391220,0ptp4l0-21swapper/509:29:125
111391220,0ptp4l0-21swapper/508:55:025
111391220,0ptp4l0-21swapper/508:54:225
111391220,0ptp4l0-21swapper/508:27:545
111391220,0ptp4l0-21swapper/508:05:125
111391220,0ptp4l0-21swapper/507:50:135
111391220,0ptp4l0-21swapper/507:33:495
111391220,0ptp4l0-21swapper/412:11:194
111391220,0ptp4l0-21swapper/409:36:144
111391220,0ptp4l0-21swapper/409:10:004
111391220,0ptp4l0-21swapper/408:34:574
111391220,0ptp4l0-21swapper/408:24:564
111391220,0ptp4l0-21swapper/408:10:004
111391220,0ptp4l0-21swapper/407:55:204
111391220,0ptp4l0-21swapper/407:50:194
111391220,0ptp4l0-21swapper/407:37:264
111391220,0ptp4l0-21swapper/407:25:014
111391220,0ptp4l0-21swapper/407:15:184
111391220,0ptp4l0-21swapper/312:02:183
111391220,0ptp4l0-21swapper/211:57:232
111391220,0ptp4l0-21swapper/211:54:352
111391220,0ptp4l0-21swapper/210:03:462
111391220,0ptp4l0-21swapper/207:48:342
111391220,0ptp4l0-21swapper/112:10:561
111391220,0ptp4l0-21swapper/111:44:311
111391220,0ptp4l0-21swapper/111:38:251
111391220,0ptp4l0-21swapper/111:18:471
111391220,0ptp4l0-21swapper/111:05:421
111391220,0ptp4l0-21swapper/111:04:071
111391220,0ptp4l0-21swapper/110:53:241
111391220,0ptp4l0-21swapper/110:37:091
111391220,0ptp4l0-21swapper/110:02:261
111391220,0ptp4l0-21swapper/109:20:441
111391220,0ptp4l0-21swapper/109:16:031
111391220,0ptp4l0-21swapper/109:08:521
111391220,0ptp4l0-21swapper/108:05:151
111391220,0ptp4l0-21swapper/107:43:331
111391220,0ptp4l0-21swapper/012:00:180
111391220,0ptp4l0-21swapper/011:50:000
111391220,0ptp4l0-21swapper/010:55:110
111391220,0ptp4l0-21swapper/009:55:180
111391220,0ptp4l0-21swapper/009:38:140
111391220,0ptp4l0-21swapper/009:30:120
111391220,0ptp4l0-21swapper/008:25:140
111391220,0ptp4l0-21swapper/007:25:110
111391210,3ptp4l721ktimersoftd/710:54:177
111391210,0ptp4l0-21swapper/611:57:266
111391210,0ptp4l0-21swapper/611:16:296
111391210,0ptp4l0-21swapper/610:03:476
111391210,0ptp4l0-21swapper/511:38:025
111391210,0ptp4l0-21swapper/511:34:105
111391210,0ptp4l0-21swapper/511:05:435
111391210,0ptp4l0-21swapper/509:20:585
111391210,0ptp4l0-21swapper/509:16:105
111391210,0ptp4l0-21swapper/508:48:465
111391210,0ptp4l0-21swapper/508:37:005
111391210,0ptp4l0-21swapper/508:20:415
111391210,0ptp4l0-21swapper/507:45:555
111391210,0ptp4l0-21swapper/309:41:573
111391210,0ptp4l0-21swapper/211:13:382
111391210,0ptp4l0-21swapper/209:50:502
111391210,0ptp4l0-21swapper/209:19:242
111391210,0ptp4l0-21swapper/208:50:002
111391210,0ptp4l0-21swapper/112:01:421
111391210,0ptp4l0-21swapper/111:31:171
111391210,0ptp4l0-21swapper/110:40:361
111391210,0ptp4l0-21swapper/110:23:311
111391210,0ptp4l0-21swapper/110:11:491
111391210,0ptp4l0-21swapper/109:44:111
111391210,0ptp4l0-21swapper/108:38:431
111391210,0ptp4l0-21swapper/108:27:201
111391210,0ptp4l0-21swapper/107:33:191
111391210,0ptp4l0-21swapper/011:26:050
111391210,0ptp4l0-21swapper/008:35:170
111391210,0ptp4l0-21swapper/008:34:550
111391200,0ptp4l0-21swapper/512:01:015
111391200,0ptp4l0-21swapper/510:23:285
111391200,0ptp4l0-21swapper/509:09:215
111391200,0ptp4l0-21swapper/509:02:345
111391200,0ptp4l0-21swapper/408:56:554
111391200,0ptp4l0-21swapper/408:01:564
111391200,0ptp4l0-21swapper/310:54:173
111391200,0ptp4l0-21swapper/211:16:302
111391200,0ptp4l0-21swapper/109:34:501
111391200,0ptp4l0-21swapper/108:22:031
111391200,0ptp4l0-21swapper/108:19:161
111391200,0ptp4l0-21swapper/107:11:481
111391200,0ptp4l0-21swapper/008:58:210
111391200,0ptp4l0-21swapper/008:07:330
111391200,0ptp4l0-21swapper/007:56:020
111391200,0ptp4l0-21swapper/007:18:560
111391190,1ptp4l783899cyclictest12:36:335
111391190,1ptp4l65-21ksoftirqd/610:56:386
111391190,0ptp4l0-21swapper/212:23:092
111391190,0ptp4l0-21swapper/209:10:392
111391190,0ptp4l0-21swapper/108:46:181
111391190,0ptp4l0-21swapper/008:42:540
7853991815,2cyclictest21984-21munin-run07:40:007
111391180,0ptp4l0-21swapper/608:10:156
111391180,0ptp4l0-21swapper/608:10:156
111391180,0ptp4l0-21swapper/210:58:572
111391180,0ptp4l0-21swapper/210:36:102
111391170,2ptp4l0-21swapper/107:36:351
111391170,0ptp4l0-21swapper/612:23:096
111391170,0ptp4l0-21swapper/610:43:046
111391170,0ptp4l0-21swapper/607:51:056
111391170,0ptp4l0-21swapper/511:01:455
111391170,0ptp4l0-21swapper/507:21:245
111391170,0ptp4l0-21swapper/209:48:502
111391170,0ptp4l0-21swapper/108:50:221
111391170,0ptp4l0-21swapper/107:27:291
111391160,0ptp4l0-21swapper/609:50:496
111391160,0ptp4l0-21swapper/609:48:496
111391160,0ptp4l0-21swapper/508:16:235
111391160,0ptp4l0-21swapper/508:10:225
111391160,0ptp4l0-21swapper/508:10:215
111391160,0ptp4l0-21swapper/507:42:465
111391160,0ptp4l0-21swapper/211:41:072
111391160,0ptp4l0-21swapper/211:04:282
111391160,0ptp4l0-21swapper/207:12:472
111391160,0ptp4l0-21swapper/109:02:251
111391160,0ptp4l0-21swapper/107:21:211
111391150,0ptp4l0-21swapper/708:37:337
111391150,0ptp4l0-21swapper/707:40:417
111391150,0ptp4l0-21swapper/608:50:006
111391150,0ptp4l0-21swapper/608:41:056
111391150,0ptp4l0-21swapper/608:16:066
111391150,0ptp4l0-21swapper/608:02:286
111391150,0ptp4l0-21swapper/607:48:356
111391150,0ptp4l0-21swapper/607:40:326
111391150,0ptp4l0-21swapper/607:16:326
111391150,0ptp4l0-21swapper/607:12:486
111391150,0ptp4l0-21swapper/507:35:375
111391150,0ptp4l0-21swapper/507:28:425
111391150,0ptp4l0-21swapper/308:37:373
111391150,0ptp4l0-21swapper/307:40:483
111391150,0ptp4l0-21swapper/208:41:092
111391150,0ptp4l0-21swapper/208:16:022
111391150,0ptp4l0-21swapper/208:02:272
782599140,1cyclictest0-21swapper/307:20:123
111391140,0ptp4l0-21swapper/611:41:066
111391140,0ptp4l0-21swapper/608:57:456
111391140,0ptp4l0-21swapper/608:50:026
111391140,0ptp4l0-21swapper/608:34:086
111391140,0ptp4l0-21swapper/210:43:042
111391140,0ptp4l0-21swapper/208:57:462
111391140,0ptp4l0-21swapper/208:51:532
111391140,0ptp4l0-21swapper/208:34:092
111391140,0ptp4l0-21swapper/208:00:002
111391140,0ptp4l0-21swapper/207:51:062
111391140,0ptp4l0-21swapper/207:40:262
111391140,0ptp4l0-21swapper/207:16:312
781799130,12cyclictest0-21swapper/212:10:002
782599127,4cyclictest2246-21turbostat12:20:003
784599110,10cyclictest0-21swapper/611:48:546
784599110,10cyclictest0-21swapper/610:13:596
782599110,10cyclictest0-21swapper/310:15:443
784599109,0cyclictest0-21swapper/612:07:456
784599109,0cyclictest0-21swapper/610:50:456
784599109,0cyclictest0-21swapper/609:55:546
784599103,6cyclictest0-21swapper/611:03:196
784599100,9cyclictest0-21swapper/612:01:286
784599100,9cyclictest0-21swapper/611:31:086
784599100,9cyclictest0-21swapper/610:28:266
782599100,9cyclictest0-21swapper/311:48:073
782599100,9cyclictest0-21swapper/311:35:433
782599100,9cyclictest0-21swapper/310:09:553
78539997,1cyclictest29366-21cpuspeed_turbos07:55:127
78539990,8cyclictest0-21swapper/710:38:307
78459998,0cyclictest0-21swapper/612:28:206
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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