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2026-08-16 - 11:10

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 Sun Aug 16, 2026 00:46:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
189552610,0sleep30-21swapper/321:10:143
111391610,5ptp4l0-21swapper/419:06:584
2711826050,6sleep70-21swapper/719:09:497
2677025645,7sleep10-21swapper/119:05:271
111391560,5ptp4l0-21swapper/019:05:300
2522325433,6sleep60-21swapper/619:05:076
2708524939,6sleep20-21swapper/219:09:282
2702224735,7sleep30-21swapper/319:08:413
2685124730,12sleep50-21swapper/519:06:275
111391370,0ptp4l0-21swapper/420:45:004
111391350,0ptp4l0-21swapper/400:00:144
111391340,0ptp4l0-21swapper/420:35:214
111391340,0ptp4l0-21swapper/022:30:100
111391330,0ptp4l0-21swapper/519:25:115
111391330,0ptp4l0-21swapper/420:30:184
111391330,0ptp4l0-21swapper/023:55:120
111391330,0ptp4l0-21swapper/021:23:440
111391320,0ptp4l0-21swapper/422:10:204
111391310,0ptp4l0-21swapper/422:38:324
111391310,0ptp4l0-21swapper/422:22:554
111391310,0ptp4l0-21swapper/422:22:554
111391300,0ptp4l0-21swapper/521:55:165
111391300,0ptp4l0-21swapper/423:46:194
111391300,0ptp4l0-21swapper/423:32:434
111391300,0ptp4l0-21swapper/422:00:524
111391300,0ptp4l0-21swapper/421:55:164
111391300,0ptp4l0-21swapper/400:35:134
111391300,0ptp4l0-21swapper/023:45:180
111391300,0ptp4l0-21swapper/022:02:280
111391300,0ptp4l0-21swapper/021:28:500
111391290,7ptp4l0-21swapper/400:23:004
111391290,1ptp4l0-21swapper/023:53:000
111391290,0ptp4l0-21swapper/423:35:154
111391290,0ptp4l0-21swapper/400:19:434
111391290,0ptp4l0-21swapper/100:19:231
111391290,0ptp4l0-21swapper/023:40:520
111391290,0ptp4l0-21swapper/023:39:380
111391290,0ptp4l0-21swapper/022:22:100
111391290,0ptp4l0-21swapper/022:22:090
111391290,0ptp4l0-21swapper/021:38:410
111391290,0ptp4l0-21swapper/021:15:570
111391290,0ptp4l0-21swapper/000:26:330
111391290,0ptp4l0-21swapper/000:21:100
43552280,0sleep30-21swapper/300:39:223
111391280,4ptp4l0-21swapper/023:26:360
111391280,0ptp4l0-21swapper/423:57:234
111391280,0ptp4l0-21swapper/422:30:064
111391280,0ptp4l0-21swapper/421:16:504
111391280,0ptp4l0-21swapper/023:22:050
111391280,0ptp4l0-21swapper/021:43:000
111391280,0ptp4l0-21swapper/020:51:580
111391270,3ptp4l0-21swapper/522:25:375
111391270,3ptp4l0-21swapper/522:25:375
111391270,0ptp4l0-21swapper/523:10:065
111391270,0ptp4l0-21swapper/521:47:285
111391270,0ptp4l0-21swapper/423:52:394
111391270,0ptp4l0-21swapper/423:09:374
111391270,0ptp4l0-21swapper/423:02:354
111391270,0ptp4l0-21swapper/422:05:474
111391270,0ptp4l0-21swapper/421:31:264
111391270,0ptp4l0-21swapper/100:24:081
111391270,0ptp4l0-21swapper/021:50:540
111391270,0ptp4l0-21swapper/021:10:070
111391270,0ptp4l0-21swapper/019:50:400
111391260,2ptp4l0-21swapper/422:43:234
111391260,0ptp4l0-21swapper/522:18:025
111391260,0ptp4l0-21swapper/521:40:485
111391260,0ptp4l0-21swapper/500:09:115
111391260,0ptp4l0-21swapper/423:23:134
111391260,0ptp4l0-21swapper/422:28:484
111391260,0ptp4l0-21swapper/422:28:474
111391260,0ptp4l0-21swapper/421:44:584
111391260,0ptp4l0-21swapper/421:22:464
111391260,0ptp4l0-21swapper/023:31:430
111391260,0ptp4l0-21swapper/022:43:570
111391260,0ptp4l0-21swapper/022:29:230
111391260,0ptp4l0-21swapper/022:29:230
111391260,0ptp4l0-21swapper/022:06:520
111391250,1ptp4l7605-21fw_forwarded_lo19:35:156
111391250,1ptp4l29066-21smart_sda20:20:174
111391250,1ptp4l27883-21diskstats19:10:135
111391250,1ptp4l18163-21diskmemload21:30:205
111391250,1ptp4l11667-21df_inode21:45:111
111391250,0ptp4l0-21swapper/523:28:495
111391250,0ptp4l0-21swapper/521:19:445
111391250,0ptp4l0-21swapper/500:38:035
111391250,0ptp4l0-21swapper/500:29:015
111391250,0ptp4l0-21swapper/423:25:204
111391250,0ptp4l0-21swapper/422:55:194
111391250,0ptp4l0-21swapper/421:25:494
111391250,0ptp4l0-21swapper/419:50:204
111391250,0ptp4l0-21swapper/221:14:222
111391250,0ptp4l0-21swapper/123:53:051
111391250,0ptp4l0-21swapper/121:18:331
111391250,0ptp4l0-21swapper/121:10:371
111391250,0ptp4l0-21swapper/119:25:391
111391250,0ptp4l0-21swapper/023:08:300
111391250,0ptp4l0-21swapper/022:58:160
111391250,0ptp4l0-21swapper/022:38:100
111391250,0ptp4l0-21swapper/021:00:200
111391250,0ptp4l0-21swapper/000:07:220
111391240,3ptp4l0-21swapper/023:18:340
111391240,1ptp4l3078-21smartctl23:50:133
111391240,1ptp4l27046-21cat20:15:214
111391240,1ptp4l22350-21latency22:45:174
111391240,1ptp4l18912-21df_inode21:55:120
111391240,1ptp4l14901-21sed21:50:002
111391240,1ptp4l14410-21sensors_fan00:05:224
111391240,1ptp4l13694-21latency_hist20:59:594
111391240,0ptp4l101ktimersoftd/000:18:070
111391240,0ptp4l0-21swapper/620:10:236
111391240,0ptp4l0-21swapper/523:17:015
111391240,0ptp4l0-21swapper/522:44:095
111391240,0ptp4l0-21swapper/522:21:355
111391240,0ptp4l0-21swapper/522:21:355
111391240,0ptp4l0-21swapper/500:30:155
111391240,0ptp4l0-21swapper/423:10:154
111391240,0ptp4l0-21swapper/422:16:564
111391240,0ptp4l0-21swapper/421:38:344
111391240,0ptp4l0-21swapper/421:05:134
111391240,0ptp4l0-21swapper/420:45:204
111391240,0ptp4l0-21swapper/420:00:004
111391240,0ptp4l0-21swapper/419:40:164
111391240,0ptp4l0-21swapper/419:15:124
111391240,0ptp4l0-21swapper/221:21:362
111391240,0ptp4l0-21swapper/123:19:561
111391240,0ptp4l0-21swapper/123:14:071
111391240,0ptp4l0-21swapper/122:31:441
111391240,0ptp4l0-21swapper/121:33:301
111391240,0ptp4l0-21swapper/120:50:171
111391240,0ptp4l0-21swapper/119:20:201
111391240,0ptp4l0-21swapper/119:10:171
111391240,0ptp4l0-21swapper/023:02:190
111391240,0ptp4l0-21swapper/022:53:270
111391240,0ptp4l0-21swapper/022:13:350
111391240,0ptp4l0-21swapper/020:55:120
111391240,0ptp4l0-21swapper/020:30:140
111391230,1ptp4l4226-21ssh00:38:551
111391230,1ptp4l30547-21cpuspeed_turbos00:30:131
111391230,1ptp4l0-21swapper/523:35:025
111391230,0ptp4l0-21swapper/723:50:147
111391230,0ptp4l0-21swapper/723:15:207
111391230,0ptp4l0-21swapper/620:05:116
111391230,0ptp4l0-21swapper/523:40:255
111391230,0ptp4l0-21swapper/523:20:035
111391230,0ptp4l0-21swapper/522:52:005
111391230,0ptp4l0-21swapper/522:14:065
111391230,0ptp4l0-21swapper/522:05:205
111391230,0ptp4l0-21swapper/521:37:445
111391230,0ptp4l0-21swapper/520:50:135
111391230,0ptp4l0-21swapper/520:10:125
111391230,0ptp4l0-21swapper/519:45:155
111391230,0ptp4l0-21swapper/519:45:155
111391230,0ptp4l0-21swapper/519:20:165
111391230,0ptp4l0-21swapper/423:15:054
111391230,0ptp4l0-21swapper/421:50:114
111391230,0ptp4l0-21swapper/421:47:494
111391230,0ptp4l0-21swapper/421:10:134
111391230,0ptp4l0-21swapper/421:00:124
111391230,0ptp4l0-21swapper/420:25:204
111391230,0ptp4l0-21swapper/419:55:134
111391230,0ptp4l0-21swapper/419:50:014
111391230,0ptp4l0-21swapper/419:50:004
111391230,0ptp4l0-21swapper/400:25:114
111391230,0ptp4l0-21swapper/400:10:224
111391230,0ptp4l0-21swapper/323:15:213
111391230,0ptp4l0-21swapper/223:39:152
111391230,0ptp4l0-21swapper/222:57:082
111391230,0ptp4l0-21swapper/222:48:222
111391230,0ptp4l0-21swapper/220:10:212
111391230,0ptp4l0-21swapper/220:05:202
111391230,0ptp4l0-21swapper/219:35:152
111391230,0ptp4l0-21swapper/123:07:121
111391230,0ptp4l0-21swapper/122:54:111
111391230,0ptp4l0-21swapper/122:44:081
111391230,0ptp4l0-21swapper/122:17:251
111391230,0ptp4l0-21swapper/122:14:101
111391230,0ptp4l0-21swapper/122:05:191
111391230,0ptp4l0-21swapper/122:01:511
111391230,0ptp4l0-21swapper/121:55:171
111391230,0ptp4l0-21swapper/121:54:171
111391230,0ptp4l0-21swapper/121:40:371
111391230,0ptp4l0-21swapper/120:30:121
111391230,0ptp4l0-21swapper/100:25:181
111391230,0ptp4l0-21swapper/100:09:131
111391230,0ptp4l0-21swapper/100:04:591
111391230,0ptp4l0-21swapper/023:10:200
111391230,0ptp4l0-21swapper/022:45:080
111391230,0ptp4l0-21swapper/022:15:160
111391230,0ptp4l0-21swapper/021:48:020
111391230,0ptp4l0-21swapper/021:32:360
111391230,0ptp4l0-21swapper/020:40:150
111391230,0ptp4l0-21swapper/020:35:130
111391230,0ptp4l0-21swapper/020:25:190
111391230,0ptp4l0-21swapper/020:20:200
111391230,0ptp4l0-21swapper/020:15:130
111391230,0ptp4l0-21swapper/020:10:150
111391230,0ptp4l0-21swapper/019:55:220
111391230,0ptp4l0-21swapper/019:49:400
111391230,0ptp4l0-21swapper/019:49:400
111391230,0ptp4l0-21swapper/019:40:190
111391230,0ptp4l0-21swapper/019:35:210
111391230,0ptp4l0-21swapper/019:15:010
111391230,0ptp4l0-21swapper/000:35:120
111391230,0ptp4l0-21swapper/000:10:150
111391230,0ptp4l0-21swapper/000:00:160
111391220,1ptp4l5502-21if_virbr019:30:171
111391220,0ptp4l0-21swapper/723:27:237
111391220,0ptp4l0-21swapper/621:43:416
111391220,0ptp4l0-21swapper/523:58:485
111391220,0ptp4l0-21swapper/523:53:295
111391220,0ptp4l0-21swapper/523:48:125
111391220,0ptp4l0-21swapper/523:00:155
111391220,0ptp4l0-21swapper/522:55:425
111391220,0ptp4l0-21swapper/522:35:345
111391220,0ptp4l0-21swapper/522:32:075
111391220,0ptp4l0-21swapper/522:01:295
111391220,0ptp4l0-21swapper/521:54:035
111391220,0ptp4l0-21swapper/521:13:455
111391220,0ptp4l0-21swapper/521:05:115
111391220,0ptp4l0-21swapper/520:46:345
111391220,0ptp4l0-21swapper/520:25:195
111391220,0ptp4l0-21swapper/519:52:115
111391220,0ptp4l0-21swapper/519:40:015
111391220,0ptp4l0-21swapper/500:22:575
111391220,0ptp4l0-21swapper/500:17:065
111391220,0ptp4l0-21swapper/500:04:325
111391220,0ptp4l0-21swapper/423:40:144
111391220,0ptp4l0-21swapper/422:50:214
111391220,0ptp4l0-21swapper/420:53:594
111391220,0ptp4l0-21swapper/420:10:174
111391220,0ptp4l0-21swapper/419:36:564
111391220,0ptp4l0-21swapper/419:30:234
111391220,0ptp4l0-21swapper/400:30:034
111391220,0ptp4l0-21swapper/323:28:013
111391220,0ptp4l0-21swapper/223:40:012
111391220,0ptp4l0-21swapper/219:15:462
111391220,0ptp4l0-21swapper/123:48:281
111391220,0ptp4l0-21swapper/123:40:181
111391220,0ptp4l0-21swapper/123:37:041
111391220,0ptp4l0-21swapper/123:20:131
111391220,0ptp4l0-21swapper/122:36:481
111391220,0ptp4l0-21swapper/122:25:321
111391220,0ptp4l0-21swapper/122:25:311
111391220,0ptp4l0-21swapper/122:21:321
111391220,0ptp4l0-21swapper/122:21:321
111391220,0ptp4l0-21swapper/121:37:301
111391220,0ptp4l0-21swapper/121:20:081
111391220,0ptp4l0-21swapper/120:49:001
111391220,0ptp4l0-21swapper/120:16:311
111391220,0ptp4l0-21swapper/120:10:001
111391220,0ptp4l0-21swapper/119:45:181
111391220,0ptp4l0-21swapper/119:45:171
111391220,0ptp4l0-21swapper/119:19:391
111391220,0ptp4l0-21swapper/100:11:211
111391220,0ptp4l0-21swapper/021:05:180
111391220,0ptp4l0-21swapper/020:45:130
111391220,0ptp4l0-21swapper/020:00:150
111391220,0ptp4l0-21swapper/019:30:170
111391220,0ptp4l0-21swapper/019:30:000
111391220,0ptp4l0-21swapper/000:31:510
111391210,0ptp4l0-21swapper/623:47:156
111391210,0ptp4l0-21swapper/623:40:016
111391210,0ptp4l0-21swapper/623:06:486
111391210,0ptp4l0-21swapper/622:57:036
111391210,0ptp4l0-21swapper/621:59:266
111391210,0ptp4l0-21swapper/523:07:175
111391210,0ptp4l0-21swapper/521:20:055
111391210,0ptp4l0-21swapper/520:36:515
111391210,0ptp4l0-21swapper/520:09:295
111391210,0ptp4l0-21swapper/519:57:045
111391210,0ptp4l0-21swapper/519:30:145
111391210,0ptp4l0-21swapper/500:11:375
111391210,0ptp4l0-21swapper/419:22:104
111391210,0ptp4l0-21swapper/221:35:512
111391210,0ptp4l0-21swapper/200:31:432
111391210,0ptp4l0-21swapper/200:04:242
111391210,0ptp4l0-21swapper/123:34:281
111391210,0ptp4l0-21swapper/123:28:491
111391210,0ptp4l0-21swapper/123:00:151
111391210,0ptp4l0-21swapper/122:56:531
111391210,0ptp4l0-21swapper/121:28:071
111391210,0ptp4l0-21swapper/121:06:581
111391210,0ptp4l0-21swapper/020:05:020
111391200,2ptp4l0-21swapper/419:12:384
111391200,0ptp4l0-21swapper/623:39:576
111391200,0ptp4l0-21swapper/600:04:216
111391200,0ptp4l0-21swapper/522:47:385
111391200,0ptp4l0-21swapper/419:26:454
111391200,0ptp4l0-21swapper/320:19:463
111391200,0ptp4l0-21swapper/223:47:172
111391200,0ptp4l0-21swapper/223:31:402
111391200,0ptp4l0-21swapper/123:57:561
111391200,0ptp4l0-21swapper/122:49:531
111391200,0ptp4l0-21swapper/120:25:161
111391200,0ptp4l0-21swapper/119:56:161
111391190,0ptp4l0-21swapper/621:21:386
111391190,0ptp4l0-21swapper/621:14:236
111391190,0ptp4l0-21swapper/600:31:416
111391190,0ptp4l0-21swapper/521:26:115
111391190,0ptp4l0-21swapper/320:03:453
111391190,0ptp4l0-21swapper/221:43:422
111391190,0ptp4l0-21swapper/120:23:591
111391190,0ptp4l0-21swapper/119:41:241
111391190,0ptp4l0-21swapper/019:14:460
111391180,0ptp4l0-21swapper/622:47:146
111391180,0ptp4l0-21swapper/521:02:575
111391180,0ptp4l0-21swapper/520:02:255
111391180,0ptp4l0-21swapper/219:59:412
111391180,0ptp4l0-21swapper/120:36:461
111391180,0ptp4l0-21swapper/119:52:291
111391170,0ptp4l0-21swapper/623:31:386
111391170,0ptp4l0-21swapper/621:50:016
111391170,0ptp4l0-21swapper/519:20:005
111391170,0ptp4l0-21swapper/120:56:371
111391170,0ptp4l0-21swapper/120:40:041
111391170,0ptp4l0-21swapper/120:00:001
111391160,0ptp4l0-21swapper/720:19:477
111391160,0ptp4l0-21swapper/621:35:496
111391160,0ptp4l0-21swapper/520:56:325
111391160,0ptp4l0-21swapper/520:24:445
111391160,0ptp4l0-21swapper/219:21:182
111391160,0ptp4l0-21swapper/121:02:471
111391160,0ptp4l0-21swapper/120:06:111
111391160,0ptp4l0-21swapper/019:23:520
2743999150,1cyclictest0-21swapper/622:20:126
2743999150,1cyclictest0-21swapper/622:20:126
2743999150,1cyclictest0-21swapper/621:30:166
111391150,0ptp4l0-21swapper/720:52:357
111391150,0ptp4l0-21swapper/720:20:087
111391150,0ptp4l0-21swapper/720:03:337
111391150,0ptp4l0-21swapper/620:53:156
111391150,0ptp4l0-21swapper/620:40:296
111391150,0ptp4l0-21swapper/620:33:376
111391150,0ptp4l0-21swapper/619:21:216
111391150,0ptp4l0-21swapper/619:15:556
111391150,0ptp4l0-21swapper/523:30:105
111391150,0ptp4l0-21swapper/520:30:075
111391150,0ptp4l0-21swapper/520:16:045
111391150,0ptp4l0-21swapper/519:37:175
111391150,0ptp4l0-21swapper/420:05:284
111391150,0ptp4l0-21swapper/320:52:343
111391150,0ptp4l0-21swapper/220:54:392
111391150,0ptp4l0-21swapper/220:43:352
111391150,0ptp4l0-21swapper/219:42:342
111391150,0ptp4l0-21swapper/119:37:181
111391140,0ptp4l0-21swapper/619:59:446
111391140,0ptp4l0-21swapper/619:42:316
111391140,0ptp4l0-21swapper/520:40:055
111391140,0ptp4l0-21swapper/320:20:033
111391140,0ptp4l0-21swapper/223:06:502
111391140,0ptp4l0-21swapper/221:57:382
111391140,0ptp4l0-21swapper/221:50:022
111391140,0ptp4l0-21swapper/220:33:352
111391140,0ptp4l0-21swapper/219:12:242
27445991311,1cyclictest0-21swapper/720:30:147
2743999119,1cyclictest0-21swapper/623:14:296
2743999110,1cyclictest0-21swapper/622:25:186
2743999110,1cyclictest0-21swapper/622:25:176
2741699110,10cyclictest0-21swapper/323:40:163
2743999100,0cyclictest0-21swapper/623:20:006
2743999100,0cyclictest0-21swapper/619:50:216
188191100,0phc2sys0-21swapper/621:25:046
274399990,8cyclictest0-21swapper/621:51:506
274169998,0cyclictest0-21swapper/321:44:083
274169998,0cyclictest0-21swapper/321:19:183
274169990,8cyclictest0-21swapper/322:47:193
274169990,8cyclictest0-21swapper/322:16:133
274169990,8cyclictest0-21swapper/321:29:123
274459986,1cyclictest3360-21missed_timers20:35:187
274459986,1cyclictest18163-21diskmemload22:56:457
274459984,3cyclictest13995-21latency_hist22:35:017
274459980,7cyclictest0-21swapper/722:19:117
274459980,7cyclictest0-21swapper/721:18:037
274459980,2cyclictest0-21swapper/700:10:177
274459980,1cyclictest0-21swapper/722:25:217
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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