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2026-07-30 - 09:32

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 Thu Jul 30, 2026 00:46:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111391860,17ptp4l0-21swapper/119:05:201
86222730,0sleep7721ktimersoftd/720:10:127
176242680,0sleep10-21swapper/119:20:001
111391640,30ptp4l0-21swapper/019:08:310
123692620,0sleep557-21ksoftirqd/522:05:125
153152600,0sleep50-21swapper/500:21:555
1881915746,7phc2sys0-21swapper/219:07:352
111391570,5ptp4l0-21swapper/419:08:374
97902560,0sleep30-21swapper/322:45:163
111391530,3ptp4l0-21swapper/519:05:215
1186525241,6sleep70-21swapper/719:06:537
1019924736,6sleep60-21swapper/619:05:086
1175924635,7sleep30-21swapper/319:05:383
111391330,0ptp4l0-21swapper/123:45:191
111391320,0ptp4l0-21swapper/521:16:395
111391320,0ptp4l0-21swapper/500:02:565
111391310,0ptp4l0-21swapper/423:39:344
111391310,0ptp4l0-21swapper/423:01:244
111391300,0ptp4l0-21swapper/421:32:014
111391300,0ptp4l0-21swapper/419:50:354
111391300,0ptp4l0-21swapper/123:11:081
111391300,0ptp4l0-21swapper/121:25:181
1240799290,19cyclictest0-21swapper/523:50:175
111391290,4ptp4l0-21swapper/521:43:315
111391290,1ptp4l29304-21ssh22:28:154
111391290,1ptp4l29304-21ssh22:28:154
111391290,0ptp4l0-21swapper/522:25:415
111391290,0ptp4l0-21swapper/522:25:405
111391290,0ptp4l0-21swapper/423:11:474
111391290,0ptp4l0-21swapper/422:39:224
111391290,0ptp4l0-21swapper/400:26:294
111391290,0ptp4l0-21swapper/121:35:211
111391290,0ptp4l0-21swapper/021:43:090
111391280,0ptp4l0-21swapper/722:59:397
111391280,0ptp4l0-21swapper/621:41:526
111391280,0ptp4l0-21swapper/521:53:445
111391280,0ptp4l0-21swapper/521:12:015
111391280,0ptp4l0-21swapper/500:34:465
111391280,0ptp4l0-21swapper/423:17:094
111391280,0ptp4l0-21swapper/423:06:204
111391280,0ptp4l0-21swapper/421:11:044
111391280,0ptp4l0-21swapper/121:22:551
111391280,0ptp4l0-21swapper/100:34:021
111391270,0ptp4l0-21swapper/722:13:317
111391270,0ptp4l0-21swapper/523:13:275
111391270,0ptp4l0-21swapper/522:44:525
111391270,0ptp4l0-21swapper/423:43:014
111391270,0ptp4l0-21swapper/422:41:314
111391270,0ptp4l0-21swapper/422:31:114
111391270,0ptp4l0-21swapper/421:50:564
111391270,0ptp4l0-21swapper/400:16:294
111391270,0ptp4l0-21swapper/123:37:251
111391270,0ptp4l0-21swapper/122:35:211
111391270,0ptp4l0-21swapper/021:32:410
1240799264,0cyclictest0-21swapper/523:06:415
111391260,5ptp4l3168-21kworker/0:121:11:290
111391260,1ptp4l29995-21memory19:45:154
111391260,1ptp4l29995-21memory19:45:144
111391260,1ptp4l16704-21diskstats22:55:154
111391260,0ptp4l0-21swapper/623:55:456
111391260,0ptp4l0-21swapper/621:39:176
111391260,0ptp4l0-21swapper/522:48:385
111391260,0ptp4l0-21swapper/521:58:005
111391260,0ptp4l0-21swapper/423:56:544
111391260,0ptp4l0-21swapper/422:51:344
111391260,0ptp4l0-21swapper/421:45:064
111391260,0ptp4l0-21swapper/400:39:094
111391260,0ptp4l0-21swapper/400:10:124
111391260,0ptp4l0-21swapper/322:59:183
111391260,0ptp4l0-21swapper/122:41:461
111391260,0ptp4l0-21swapper/122:08:331
111391260,0ptp4l0-21swapper/121:48:151
111391260,0ptp4l0-21swapper/120:27:491
111391260,0ptp4l0-21swapper/120:10:121
111391250,0ptp4l0-21swapper/721:55:117
111391250,0ptp4l0-21swapper/523:34:285
111391250,0ptp4l0-21swapper/522:36:115
111391250,0ptp4l0-21swapper/522:33:305
111391250,0ptp4l0-21swapper/520:45:175
111391250,0ptp4l0-21swapper/519:42:225
111391250,0ptp4l0-21swapper/519:20:125
111391250,0ptp4l0-21swapper/500:25:455
111391250,0ptp4l0-21swapper/423:21:174
111391250,0ptp4l0-21swapper/422:04:054
111391250,0ptp4l0-21swapper/421:55:444
111391250,0ptp4l0-21swapper/420:38:564
111391250,0ptp4l0-21swapper/419:31:224
111391250,0ptp4l0-21swapper/123:51:101
111391250,0ptp4l0-21swapper/123:00:151
111391250,0ptp4l0-21swapper/122:14:081
111391250,0ptp4l0-21swapper/121:58:011
111391250,0ptp4l0-21swapper/121:53:201
111391250,0ptp4l0-21swapper/119:56:351
111391250,0ptp4l0-21swapper/119:12:481
111391250,0ptp4l0-21swapper/100:05:241
111391250,0ptp4l0-21swapper/023:16:470
111391250,0ptp4l0-21swapper/020:05:010
111391240,7ptp4l0-21swapper/120:23:171
111391240,4ptp4l0-21swapper/523:20:465
111391240,2ptp4l0-21swapper/019:45:190
111391240,2ptp4l0-21swapper/019:45:180
111391240,1ptp4l4047-21grep00:05:205
111391240,1ptp4l29474-21df19:45:111
111391240,1ptp4l29474-21df19:45:111
111391240,1ptp4l26951-21sh22:25:120
111391240,1ptp4l26951-21sh22:25:120
111391240,1ptp4l24515-21if_err_enp1s000:35:151
111391240,1ptp4l24344-21sed20:45:003
111391240,1ptp4l23450-21swap19:30:181
111391240,1ptp4l21332-21users20:35:220
111391240,1ptp4l16424-21sed20:25:185
111391240,1ptp4l15495-21latency_hist22:10:003
111391240,1ptp4l13208-21ssh22:50:135
111391240,0ptp4l10553-21users22:45:207
111391240,0ptp4l0-21swapper/723:25:157
111391240,0ptp4l0-21swapper/622:45:136
111391240,0ptp4l0-21swapper/520:23:225
111391240,0ptp4l0-21swapper/519:50:165
111391240,0ptp4l0-21swapper/519:30:555
111391240,0ptp4l0-21swapper/500:35:135
111391240,0ptp4l0-21swapper/423:48:434
111391240,0ptp4l0-21swapper/423:33:344
111391240,0ptp4l0-21swapper/422:16:084
111391240,0ptp4l0-21swapper/421:40:144
111391240,0ptp4l0-21swapper/420:15:164
111391240,0ptp4l0-21swapper/419:35:144
111391240,0ptp4l0-21swapper/400:07:264
111391240,0ptp4l0-21swapper/321:55:113
111391240,0ptp4l0-21swapper/319:39:543
111391240,0ptp4l0-21swapper/319:28:113
111391240,0ptp4l0-21swapper/300:20:093
111391240,0ptp4l0-21swapper/122:33:121
111391240,0ptp4l0-21swapper/122:25:531
111391240,0ptp4l0-21swapper/122:25:531
111391240,0ptp4l0-21swapper/120:45:461
111391240,0ptp4l0-21swapper/120:00:051
111391240,0ptp4l0-21swapper/100:00:241
111391240,0ptp4l0-21swapper/023:50:140
111391240,0ptp4l0-21swapper/023:40:130
111391240,0ptp4l0-21swapper/023:35:120
111391240,0ptp4l0-21swapper/023:24:030
111391240,0ptp4l0-21swapper/022:55:170
111391240,0ptp4l0-21swapper/021:51:390
111391240,0ptp4l0-21swapper/021:45:190
111391240,0ptp4l0-21swapper/021:20:120
111391240,0ptp4l0-21swapper/000:39:250
111391240,0ptp4l0-21swapper/000:25:590
111391230,3ptp4l13381-21kworker/0:023:46:330
111391230,1ptp4l9206-21ssh23:29:184
111391230,1ptp4l5816-21ksmtuned00:09:530
111391230,1ptp4l14767-21ssh00:20:237
111391230,1ptp4l13354-21expr19:10:154
111391230,0ptp4l3138-21diskmemload00:25:111
111391230,0ptp4l3138-21diskmemload00:19:413
111391230,0ptp4l18061-21fw_packets19:20:131
111391230,0ptp4l0-21swapper/722:00:127
111391230,0ptp4l0-21swapper/719:40:157
111391230,0ptp4l0-21swapper/700:36:057
111391230,0ptp4l0-21swapper/523:46:015
111391230,0ptp4l0-21swapper/523:00:225
111391230,0ptp4l0-21swapper/522:15:495
111391230,0ptp4l0-21swapper/521:35:115
111391230,0ptp4l0-21swapper/521:28:085
111391230,0ptp4l0-21swapper/521:23:505
111391230,0ptp4l0-21swapper/521:05:205
111391230,0ptp4l0-21swapper/520:50:205
111391230,0ptp4l0-21swapper/520:34:325
111391230,0ptp4l0-21swapper/520:05:165
111391230,0ptp4l0-21swapper/520:00:115
111391230,0ptp4l0-21swapper/519:45:475
111391230,0ptp4l0-21swapper/519:45:475
111391230,0ptp4l0-21swapper/519:15:015
111391230,0ptp4l0-21swapper/500:15:225
111391230,0ptp4l0-21swapper/422:20:154
111391230,0ptp4l0-21swapper/422:20:144
111391230,0ptp4l0-21swapper/422:05:114
111391230,0ptp4l0-21swapper/421:07:284
111391230,0ptp4l0-21swapper/420:55:004
111391230,0ptp4l0-21swapper/420:40:144
111391230,0ptp4l0-21swapper/419:22:404
111391230,0ptp4l0-21swapper/400:00:144
111391230,0ptp4l0-21swapper/322:10:113
111391230,0ptp4l0-21swapper/320:06:153
111391230,0ptp4l0-21swapper/300:11:053
111391230,0ptp4l0-21swapper/223:55:142
111391230,0ptp4l0-21swapper/222:45:152
111391230,0ptp4l0-21swapper/123:57:391
111391230,0ptp4l0-21swapper/123:42:341
111391230,0ptp4l0-21swapper/123:34:131
111391230,0ptp4l0-21swapper/123:20:521
111391230,0ptp4l0-21swapper/122:50:381
111391230,0ptp4l0-21swapper/122:01:251
111391230,0ptp4l0-21swapper/121:05:131
111391230,0ptp4l0-21swapper/121:00:131
111391230,0ptp4l0-21swapper/120:50:121
111391230,0ptp4l0-21swapper/120:40:141
111391230,0ptp4l0-21swapper/120:35:141
111391230,0ptp4l0-21swapper/120:34:271
111391230,0ptp4l0-21swapper/120:08:171
111391230,0ptp4l0-21swapper/100:15:141
111391230,0ptp4l0-21swapper/023:30:110
111391230,0ptp4l0-21swapper/023:10:230
111391230,0ptp4l0-21swapper/023:05:140
111391230,0ptp4l0-21swapper/023:01:130
111391230,0ptp4l0-21swapper/022:20:180
111391230,0ptp4l0-21swapper/022:20:170
111391230,0ptp4l0-21swapper/022:15:190
111391230,0ptp4l0-21swapper/021:55:190
111391230,0ptp4l0-21swapper/021:15:150
111391230,0ptp4l0-21swapper/020:55:100
111391230,0ptp4l0-21swapper/020:45:130
111391230,0ptp4l0-21swapper/020:15:130
111391230,0ptp4l0-21swapper/019:35:200
111391230,0ptp4l0-21swapper/019:10:170
111391230,0ptp4l0-21swapper/000:30:140
111391230,0ptp4l0-21swapper/000:18:270
111391230,0ptp4l0-21swapper/000:10:160
1240799225,0cyclictest0-21swapper/521:45:315
111391220,3ptp4l0-21swapper/520:44:395
111391220,1ptp4l15387-21ssh22:53:140
111391220,0ptp4l7309-21sh21:15:071
111391220,0ptp4l3138-21diskmemload21:15:234
111391220,0ptp4l0-21swapper/720:30:107
111391220,0ptp4l0-21swapper/720:05:197
111391220,0ptp4l0-21swapper/719:39:497
111391220,0ptp4l0-21swapper/700:11:557
111391220,0ptp4l0-21swapper/622:13:036
111391220,0ptp4l0-21swapper/622:05:196
111391220,0ptp4l0-21swapper/621:51:226
111391220,0ptp4l0-21swapper/621:20:416
111391220,0ptp4l0-21swapper/523:57:315
111391220,0ptp4l0-21swapper/523:41:375
111391220,0ptp4l0-21swapper/523:35:215
111391220,0ptp4l0-21swapper/522:12:295
111391220,0ptp4l0-21swapper/522:03:055
111391220,0ptp4l0-21swapper/521:03:415
111391220,0ptp4l0-21swapper/520:35:185
111391220,0ptp4l0-21swapper/520:10:215
111391220,0ptp4l0-21swapper/519:59:495
111391220,0ptp4l0-21swapper/519:25:005
111391220,0ptp4l0-21swapper/519:12:165
111391220,0ptp4l0-21swapper/423:50:164
111391220,0ptp4l0-21swapper/422:45:104
111391220,0ptp4l0-21swapper/422:10:194
111391220,0ptp4l0-21swapper/421:35:034
111391220,0ptp4l0-21swapper/421:25:144
111391220,0ptp4l0-21swapper/421:20:144
111391220,0ptp4l0-21swapper/421:00:204
111391220,0ptp4l0-21swapper/420:55:194
111391220,0ptp4l0-21swapper/420:45:144
111391220,0ptp4l0-21swapper/420:05:114
111391220,0ptp4l0-21swapper/400:30:214
111391220,0ptp4l0-21swapper/400:24:354
111391220,0ptp4l0-21swapper/323:25:123
111391220,0ptp4l0-21swapper/322:00:203
111391220,0ptp4l0-21swapper/320:30:213
111391220,0ptp4l0-21swapper/319:40:123
111391220,0ptp4l0-21swapper/300:37:123
111391220,0ptp4l0-21swapper/223:17:072
111391220,0ptp4l0-21swapper/222:32:212
111391220,0ptp4l0-21swapper/222:12:412
111391220,0ptp4l0-21swapper/222:05:172
111391220,0ptp4l0-21swapper/221:51:252
111391220,0ptp4l0-21swapper/221:20:402
111391220,0ptp4l0-21swapper/220:15:182
111391220,0ptp4l0-21swapper/122:58:211
111391220,0ptp4l0-21swapper/122:46:001
111391220,0ptp4l0-21swapper/122:23:171
111391220,0ptp4l0-21swapper/122:23:171
111391220,0ptp4l0-21swapper/121:41:231
111391220,0ptp4l0-21swapper/121:10:131
111391220,0ptp4l0-21swapper/119:25:121
111391220,0ptp4l0-21swapper/100:22:241
111391220,0ptp4l0-21swapper/023:56:090
111391220,0ptp4l0-21swapper/023:29:130
111391220,0ptp4l0-21swapper/022:45:170
111391220,0ptp4l0-21swapper/022:42:090
111391220,0ptp4l0-21swapper/022:30:140
111391220,0ptp4l0-21swapper/022:10:180
111391220,0ptp4l0-21swapper/022:05:150
111391220,0ptp4l0-21swapper/022:01:370
111391220,0ptp4l0-21swapper/021:35:010
111391220,0ptp4l0-21swapper/021:29:570
111391220,0ptp4l0-21swapper/021:05:120
111391220,0ptp4l0-21swapper/021:00:160
111391220,0ptp4l0-21swapper/020:40:140
111391220,0ptp4l0-21swapper/020:20:150
111391220,0ptp4l0-21swapper/000:00:140
111391210,0ptp4l3138-21diskmemload22:16:096
111391210,0ptp4l0-21swapper/723:00:087
111391210,0ptp4l0-21swapper/719:28:487
111391210,0ptp4l0-21swapper/623:50:416
111391210,0ptp4l0-21swapper/623:47:576
111391210,0ptp4l0-21swapper/623:17:056
111391210,0ptp4l0-21swapper/621:47:136
111391210,0ptp4l0-21swapper/621:17:056
111391210,0ptp4l0-21swapper/522:58:255
111391210,0ptp4l0-21swapper/522:23:015
111391210,0ptp4l0-21swapper/522:23:015
111391210,0ptp4l0-21swapper/420:20:174
111391210,0ptp4l0-21swapper/419:27:334
111391210,0ptp4l0-21swapper/419:19:474
111391210,0ptp4l0-21swapper/323:00:073
111391210,0ptp4l0-21swapper/320:29:493
111391210,0ptp4l0-21swapper/223:48:072
111391210,0ptp4l0-21swapper/223:24:302
111391210,0ptp4l0-21swapper/222:18:012
111391210,0ptp4l0-21swapper/221:45:212
111391210,0ptp4l0-21swapper/221:41:442
111391210,0ptp4l0-21swapper/221:39:052
111391210,0ptp4l0-21swapper/221:30:472
111391210,0ptp4l0-21swapper/221:17:082
111391210,0ptp4l0-21swapper/200:08:182
111391210,0ptp4l0-21swapper/119:50:161
111391210,0ptp4l0-21swapper/019:30:010
111391210,0ptp4l0-21swapper/000:22:170
315242200,0sleep30-21swapper/323:15:123
111391200,2ptp4l321ktimersoftd/221:09:512
111391200,0ptp4l0-21swapper/722:19:437
111391200,0ptp4l0-21swapper/721:54:427
111391200,0ptp4l0-21swapper/700:19:487
111391200,0ptp4l0-21swapper/523:17:275
111391200,0ptp4l0-21swapper/420:14:494
111391200,0ptp4l0-21swapper/322:19:453
111391200,0ptp4l0-21swapper/321:54:463
111391200,0ptp4l0-21swapper/123:07:321
111391200,0ptp4l0-21swapper/122:15:401
111391200,0ptp4l0-21swapper/022:36:430
111391190,4ptp4l14927-21kworker/0:019:40:370
111391190,0ptp4l0-21swapper/722:09:517
111391190,0ptp4l0-21swapper/623:24:276
111391190,0ptp4l0-21swapper/621:30:496
111391190,0ptp4l0-21swapper/600:08:136
111391190,0ptp4l0-21swapper/420:33:484
111391190,0ptp4l0-21swapper/419:40:204
111391190,0ptp4l0-21swapper/223:07:402
111391190,0ptp4l0-21swapper/222:41:012
111391190,0ptp4l0-21swapper/220:59:492
111391190,0ptp4l0-21swapper/200:25:402
111391190,0ptp4l0-21swapper/123:16:191
111391190,0ptp4l0-21swapper/119:42:491
111391190,0ptp4l0-21swapper/020:10:480
12379991817,0cyclictest241ktimersoftd/120:16:391
111391180,1ptp4l121rcu_preempt00:15:372
111391180,0ptp4l0-21swapper/622:41:016
111391180,0ptp4l0-21swapper/600:17:556
111391180,0ptp4l0-21swapper/520:55:485
111391180,0ptp4l0-21swapper/420:02:504
111391180,0ptp4l0-21swapper/321:04:053
111391180,0ptp4l0-21swapper/020:32:500
111391180,0ptp4l0-21swapper/019:20:220
111391170,0ptp4l0-21swapper/623:07:406
111391170,0ptp4l0-21swapper/622:32:196
111391170,0ptp4l0-21swapper/600:25:356
111391170,0ptp4l0-21swapper/223:50:412
111391170,0ptp4l0-21swapper/119:37:261
111391160,1ptp4l799-21NetworkManager19:46:427
111391160,1ptp4l799-21NetworkManager19:46:417
111391160,0ptp4l0-21swapper/420:28:454
111391160,0ptp4l0-21swapper/319:46:493
111391160,0ptp4l0-21swapper/319:46:483
111391160,0ptp4l0-21swapper/223:43:312
111391160,0ptp4l0-21swapper/222:53:452
111391160,0ptp4l0-21swapper/100:14:191
111391160,0ptp4l0-21swapper/019:57:070
111391160,0ptp4l0-21swapper/019:50:230
111391160,0ptp4l0-21swapper/019:15:430
111391150,0ptp4l0-21swapper/721:03:567
111391150,0ptp4l0-21swapper/720:45:037
111391150,0ptp4l0-21swapper/720:28:487
111391150,0ptp4l0-21swapper/622:53:456
111391150,0ptp4l0-21swapper/621:03:166
111391150,0ptp4l0-21swapper/620:56:436
111391150,0ptp4l0-21swapper/620:47:376
111391150,0ptp4l0-21swapper/620:43:426
111391150,0ptp4l0-21swapper/620:37:266
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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