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2026-09-15 - 15:10

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, 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 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 rackbslot8s (updated Tue Sep 15, 2026 00:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23751999126126,0cyclictest0-21swapper/223:24:132
2372372123109,9sleep60-21swapper/619:09:066
23753099119118,1cyclictest553-21snmpd23:45:455
2370372119104,9sleep40-21swapper/419:06:154
237298211788,9sleep00-21swapper/019:09:570
2372342117103,9sleep30-21swapper/319:09:043
2371802117103,9sleep50-21swapper/519:08:165
2370222116102,9sleep70-21swapper/719:06:027
2370262115100,10sleep20-21swapper/219:06:062
236978211197,9sleep10-21swapper/119:05:251
237512991040,100cyclictest0-21swapper/122:05:161
23753099103100,2cyclictest553-21snmpd20:09:155
237512991030,100cyclictest0-21swapper/121:50:531
237530991020,102cyclictest0-21swapper/500:25:145
237526991020,100cyclictest458305-21/usr/sbin/munin23:30:164
23751999102100,1cyclictest31-21ksoftirqd/223:05:072
237519991020,100cyclictest0-21swapper/221:21:572
237538991010,101cyclictest66-21ksoftirqd/700:21:077
237538991010,100cyclictest0-21swapper/723:32:497
237538991010,100cyclictest0-21swapper/700:17:047
2375349910199,2cyclictest0-21swapper/623:18:036
2375349910199,1cyclictest553-21snmpd20:41:346
2375349910198,2cyclictest553-21snmpd22:05:126
23753499101100,1cyclictest553-21snmpd23:47:456
237534991010,100cyclictest0-21swapper/621:01:346
2375309910198,3cyclictest553-21snmpd23:03:245
23753099101100,1cyclictest553-21snmpd00:02:565
237530991010,99cyclictest0-21swapper/519:16:205
237530991010,101cyclictest0-21swapper/520:46:075
237530991010,100cyclictest0-21swapper/523:25:445
237530991010,100cyclictest0-21swapper/521:59:255
2375269910199,2cyclictest553-21snmpd00:38:564
2375249910199,2cyclictest553-21snmpd23:20:233
2375249910199,2cyclictest553-21snmpd22:46:583
23751999101100,1cyclictest553-21snmpd22:22:212
237519991010,100cyclictest0-21swapper/221:26:412
237519991010,100cyclictest0-21swapper/221:26:412
237519991010,100cyclictest0-21swapper/200:20:212
2375129910199,2cyclictest0-21swapper/100:12:531
237512991010,99cyclictest0-21swapper/123:33:031
237512991010,101cyclictest0-21swapper/120:57:051
237512991010,101cyclictest0-21swapper/120:17:361
237512991010,100cyclictest0-21swapper/119:47:441
237512991010,0cyclictest0-21swapper/100:25:171
237506991010,100cyclictest0-21swapper/023:18:450
237506991010,100cyclictest0-21swapper/022:32:560
237538991000,99cyclictest0-21swapper/723:27:307
237538991000,99cyclictest0-21swapper/700:34:487
237538991000,1cyclictest0-21swapper/700:11:527
237538991000,100cyclictest0-21swapper/723:41:137
237538991000,100cyclictest0-21swapper/719:24:237
237538991000,100cyclictest0-21swapper/700:29:097
2375349910099,1cyclictest553-21snmpd22:50:016
2375349910099,1cyclictest553-21snmpd22:35:596
2375349910099,1cyclictest553-21snmpd21:06:476
2375349910099,1cyclictest553-21snmpd19:35:016
2375349910099,1cyclictest553-21snmpd00:32:186
2375349910099,1cyclictest553-21snmpd00:25:216
2375349910099,1cyclictest553-21snmpd00:03:206
2375349910099,1cyclictest530964-21cat00:35:146
2375349910099,1cyclictest458145-21cat23:30:156
2375349910099,1cyclictest0-21swapper/621:37:206
2375349910099,1cyclictest0-21swapper/621:37:206
237534991000,99cyclictest0-21swapper/622:28:306
237534991000,99cyclictest0-21swapper/620:04:026
2375309910099,1cyclictest553-21snmpd23:13:335
2375309910099,1cyclictest553-21snmpd20:16:105
2375309910099,1cyclictest553-21snmpd19:45:485
2375309910099,1cyclictest553-21snmpd19:35:175
2375309910098,2cyclictest553-21snmpd21:51:425
2375309910097,3cyclictest553-21snmpd22:11:075
237530991000,99cyclictest0-21swapper/522:02:455
237530991000,100cyclictest0-21swapper/523:05:485
2375269910099,1cyclictest553-21snmpd21:49:094
2375269910099,1cyclictest553-21snmpd19:17:384
2375269910099,1cyclictest553-21snmpd00:12:194
237526991000,99cyclictest0-21swapper/422:42:534
237526991000,99cyclictest0-21swapper/421:27:034
237526991000,99cyclictest0-21swapper/421:27:024
237526991000,99cyclictest0-21swapper/419:41:534
237526991000,99cyclictest0-21swapper/419:28:494
237526991000,100cyclictest0-21swapper/420:35:194
2375249910099,1cyclictest553-21snmpd22:52:523
2375249910099,1cyclictest553-21snmpd21:58:303
2375249910099,1cyclictest553-21snmpd21:04:143
2375249910099,1cyclictest553-21snmpd20:52:343
2375249910099,1cyclictest553-21snmpd20:27:153
2375249910099,1cyclictest553-21snmpd19:26:553
2375249910099,1cyclictest553-21snmpd19:19:443
2375249910099,1cyclictest553-21snmpd00:16:023
2375199910099,1cyclictest553-21snmpd23:15:412
2375199910099,1cyclictest553-21snmpd20:04:032
237519991000,99cyclictest299542-21diskmemload21:53:042
237519991000,99cyclictest0-21swapper/222:00:382
237519991000,100cyclictest411770-21kworker/2:000:14:032
237519991000,100cyclictest0-21swapper/223:30:152
237519991000,100cyclictest0-21swapper/222:52:402
237519991000,100cyclictest0-21swapper/222:41:282
237519991000,100cyclictest0-21swapper/222:12:492
237519991000,100cyclictest0-21swapper/221:30:592
237519991000,100cyclictest0-21swapper/221:30:592
2375129910099,1cyclictest553-21snmpd23:09:141
2375129910099,1cyclictest553-21snmpd20:40:541
2375129910099,1cyclictest0-21swapper/122:26:401
237512991000,99cyclictest0-21swapper/123:46:431
237512991000,99cyclictest0-21swapper/123:01:571
237512991000,100cyclictest0-21swapper/121:28:241
237512991000,100cyclictest0-21swapper/121:28:241
237512991000,100cyclictest0-21swapper/120:09:271
237512991000,100cyclictest0-21swapper/120:00:541
237512991000,100cyclictest0-21swapper/100:17:591
2375069910099,1cyclictest553-21snmpd23:30:450
2375069910099,1cyclictest553-21snmpd21:53:050
2375069910099,1cyclictest553-21snmpd21:31:420
2375069910099,1cyclictest553-21snmpd21:31:410
2375069910099,1cyclictest553-21snmpd21:07:010
2375069910099,1cyclictest553-21snmpd20:38:360
2375069910099,1cyclictest553-21snmpd19:53:090
2375069910099,1cyclictest553-21snmpd19:35:430
2375069910099,0cyclictest553-21snmpd21:43:060
23750699100100,0cyclictest0-21swapper/021:16:530
237506991000,99cyclictest0-21swapper/023:14:140
237506991000,99cyclictest0-21swapper/020:10:080
23753899990,99cyclictest0-21swapper/723:52:157
23753899990,99cyclictest0-21swapper/722:32:317
23753899990,99cyclictest0-21swapper/720:53:177
23753899990,99cyclictest0-21swapper/720:06:567
23753899990,0cyclictest0-21swapper/722:00:187
23753899990,0cyclictest0-21swapper/721:04:047
23753899990,0cyclictest0-21swapper/719:25:207
237534999999,0cyclictest553-21snmpd22:42:086
237534999999,0cyclictest553-21snmpd20:58:406
237534999999,0cyclictest553-21snmpd19:47:366
237534999998,1cyclictest553-21snmpd20:46:346
23753499990,99cyclictest0-21swapper/621:55:166
23753499990,99cyclictest0-21swapper/619:51:426
23753499990,99cyclictest0-21swapper/600:13:526
23753499990,98cyclictest299542-21diskmemload23:51:126
23753499990,0cyclictest0-21swapper/623:09:546
23753499990,0cyclictest0-21swapper/622:21:346
237530999999,0cyclictest553-21snmpd19:31:045
237530999999,0cyclictest553-21snmpd00:11:315
237530999998,1cyclictest553-21snmpd23:35:555
237530999998,1cyclictest553-21snmpd22:45:085
237530999998,0cyclictest553-21snmpd22:57:165
237530999997,2cyclictest553-21snmpd22:40:085
237530999997,2cyclictest553-21snmpd19:58:115
23753099990,99cyclictest0-21swapper/521:19:385
23753099990,0cyclictest0-21swapper/519:22:175
237526999999,0cyclictest553-21snmpd22:39:294
237526999999,0cyclictest553-21snmpd22:06:074
237526999999,0cyclictest553-21snmpd20:15:134
237526999999,0cyclictest553-21snmpd00:01:494
237526999999,0cyclictest373606-21cat22:15:134
237526999998,1cyclictest553-21snmpd23:40:064
237526999998,1cyclictest553-21snmpd20:26:454
237526999998,1cyclictest553-21snmpd00:32:294
237526999998,1cyclictest306752-21cat21:15:144
23752699990,99cyclictest0-21swapper/423:20:474
23752699990,99cyclictest0-21swapper/423:00:484
23752699990,99cyclictest0-21swapper/419:50:204
23752699990,98cyclictest0-21swapper/420:49:524
23752699990,0cyclictest0-21swapper/420:03:084
23752699990,0cyclictest0-21swapper/400:21:394
23752699990,0cyclictest0-21swapper/400:15:154
237524999999,0cyclictest553-21snmpd23:43:033
237524999999,0cyclictest553-21snmpd23:27:343
237524999999,0cyclictest553-21snmpd00:34:053
237524999998,1cyclictest553-21snmpd23:53:073
237524999998,1cyclictest553-21snmpd23:30:523
237524999998,1cyclictest553-21snmpd20:10:213
237524999998,1cyclictest553-21snmpd20:09:483
237524999998,0cyclictest553-21snmpd21:23:233
237519999998,1cyclictest553-21snmpd23:55:462
237519999998,1cyclictest553-21snmpd21:47:332
237519999998,1cyclictest553-21snmpd20:12:052
237519999997,2cyclictest553-21snmpd21:14:522
23751999990,99cyclictest0-21swapper/222:59:292
23751999990,99cyclictest0-21swapper/221:40:032
23751999990,99cyclictest0-21swapper/221:08:082
23751999990,99cyclictest0-21swapper/220:58:202
23751999990,99cyclictest0-21swapper/220:36:252
23751999990,99cyclictest0-21swapper/219:33:292
23751999990,99cyclictest0-21swapper/200:27:532
23751999990,99cyclictest0-21swapper/200:00:182
23751999990,98cyclictest0-21swapper/222:34:142
23751999990,0cyclictest0-21swapper/223:26:292
23751999990,0cyclictest0-21swapper/222:40:012
23751999990,0cyclictest0-21swapper/221:58:002
237512999999,0cyclictest553-21snmpd22:52:141
237512999999,0cyclictest553-21snmpd19:22:431
237512999999,0cyclictest553-21snmpd19:17:101
237512999998,1cyclictest553-21snmpd23:27:551
237512999998,1cyclictest377282-21ssh22:19:121
237512999997,2cyclictest553-21snmpd21:31:561
237512999997,2cyclictest553-21snmpd21:31:561
23751299990,99cyclictest0-21swapper/121:57:031
23751299990,99cyclictest0-21swapper/121:45:111
23751299990,99cyclictest0-21swapper/120:52:411
23751299990,99cyclictest0-21swapper/119:38:531
23751299990,0cyclictest0-21swapper/122:59:391
23751299990,0cyclictest0-21swapper/122:34:291
237506999999,0cyclictest553-21snmpd23:37:420
237506999998,1cyclictest553-21snmpd23:08:050
237506999998,1cyclictest553-21snmpd19:15:160
237506999997,2cyclictest553-21snmpd21:11:040
23750699990,99cyclictest0-21swapper/022:09:250
23750699990,99cyclictest0-21swapper/022:00:070
23750699990,99cyclictest0-21swapper/021:47:090
23750699990,99cyclictest0-21swapper/000:11:440
23750699990,98cyclictest0-21swapper/022:40:580
23750699990,0cyclictest0-21swapper/000:23:350
237538999898,0cyclictest0-21swapper/723:17:337
23753899980,98cyclictest0-21swapper/723:14:397
23753899980,98cyclictest0-21swapper/700:06:057
237534999898,0cyclictest553-21snmpd21:28:186
237534999898,0cyclictest553-21snmpd21:28:176
237534999897,1cyclictest553-21snmpd21:22:116
237534999896,2cyclictest553-21snmpd23:39:226
23753499980,98cyclictest0-21swapper/621:10:326
237530999898,0cyclictest553-21snmpd19:29:045
237530999897,1cyclictest553-21snmpd23:57:115
237530999895,3cyclictest553-21snmpd19:42:485
23753099980,98cyclictest0-21swapper/521:10:085
23753099980,98cyclictest0-21swapper/519:52:085
237526999898,0cyclictest452559-21cat23:25:154
237526999897,1cyclictest553-21snmpd23:35:094
237526999897,1cyclictest553-21snmpd21:03:234
237526999897,1cyclictest0-21swapper/423:58:534
23752699980,98cyclictest0-21swapper/423:06:244
23752699980,97cyclictest0-21swapper/423:47:574
237524999898,0cyclictest553-21snmpd20:55:403
237524999898,0cyclictest553-21snmpd19:55:443
237524999898,0cyclictest553-21snmpd00:28:503
237524999897,1cyclictest553-21snmpd22:22:453
237524999897,1cyclictest553-21snmpd21:44:453
237524999897,1cyclictest553-21snmpd20:16:003
237519999898,0cyclictest0-21swapper/222:48:262
237519999898,0cyclictest0-21swapper/220:45:162
237519999898,0cyclictest0-21swapper/220:15:182
237519999897,1cyclictest31-21ksoftirqd/222:05:572
237519999896,0cyclictest31-21ksoftirqd/200:35:332
23751999980,98cyclictest0-21swapper/223:10:362
23751999980,98cyclictest0-21swapper/222:28:412
23751999980,98cyclictest0-21swapper/221:39:542
23751999980,98cyclictest0-21swapper/221:39:532
23751999980,98cyclictest0-21swapper/200:30:022
23751999980,98cyclictest0-21swapper/200:17:292
23751999980,97cyclictest0-21swapper/220:20:482
237512999898,0cyclictest553-21snmpd23:55:221
237512999897,1cyclictest553-21snmpd20:20:061
237512999896,2cyclictest553-21snmpd23:54:561
23751299980,98cyclictest0-21swapper/121:04:171
23751299980,98cyclictest0-21swapper/100:38:541
23751299980,98cyclictest0-21swapper/100:04:131
237506999897,1cyclictest553-21snmpd19:59:270
237538999797,0cyclictest0-21swapper/722:52:447
237538999797,0cyclictest0-21swapper/721:58:407
23753899970,97cyclictest0-21swapper/720:29:587
23753899970,97cyclictest0-21swapper/720:16:287
237534999797,0cyclictest553-21snmpd22:34:016
237534999797,0cyclictest553-21snmpd20:34:036
237534999796,1cyclictest553-21snmpd20:22:166
237534999796,1cyclictest553-21snmpd19:32:496
237534999795,2cyclictest0-21swapper/622:56:376
237534999795,2cyclictest0-21swapper/619:11:016
237534999795,1cyclictest0-21swapper/600:08:556
23753499970,97cyclictest0-21swapper/623:59:596
23753499970,97cyclictest0-21swapper/621:15:296
23753499970,96cyclictest0-21swapper/619:25:056
237530999797,0cyclictest553-21snmpd22:25:425
237530999797,0cyclictest553-21snmpd22:17:375
237530999796,1cyclictest553-21snmpd20:32:245
237530999796,1cyclictest553-21snmpd20:04:535
237530999795,2cyclictest553-21snmpd22:33:375
237530999795,2cyclictest553-21snmpd22:07:155
237530999795,2cyclictest553-21snmpd21:05:055
237530999794,3cyclictest553-21snmpd22:37:445
23753099970,97cyclictest0-21swapper/500:08:165
237526999797,0cyclictest553-21snmpd22:30:524
237526999797,0cyclictest0-21swapper/422:55:164
237526999796,1cyclictest553-21snmpd23:53:474
237526999796,1cyclictest553-21snmpd22:53:434
237526999796,1cyclictest553-21snmpd19:58:204
237526999796,1cyclictest244640-21cat19:20:154
23752699970,97cyclictest0-21swapper/421:43:304
23752699970,97cyclictest0-21swapper/419:10:174
237524999797,0cyclictest553-21snmpd19:24:103
237524999796,1cyclictest553-21snmpd23:35:183
237524999796,1cyclictest553-21snmpd22:43:443
237524999796,1cyclictest553-21snmpd22:04:213
237524999796,1cyclictest553-21snmpd00:14:293
237524999794,2cyclictest553-21snmpd00:05:253
237519999797,0cyclictest553-21snmpd23:51:312
237519999797,0cyclictest281226-21users20:30:212
237519999796,1cyclictest553-21snmpd19:54:172
237519999796,1cyclictest553-21snmpd19:23:432
237519999796,0cyclictest553-21snmpd00:09:312
23751999970,97cyclictest0-21swapper/223:47:462
23751999970,97cyclictest0-21swapper/223:35:142
23751999970,97cyclictest0-21swapper/223:03:132
23751999970,97cyclictest0-21swapper/221:17:582
23751999970,97cyclictest0-21swapper/219:45:352
237512999797,0cyclictest553-21snmpd22:04:461
237512999797,0cyclictest553-21snmpd21:08:551
237512999796,1cyclictest553-21snmpd19:59:061
237512999795,2cyclictest0-21swapper/122:36:041
237506999796,1cyclictest553-21snmpd19:49:560
237506999796,1cyclictest553-21snmpd19:29:350
23750699970,97cyclictest0-21swapper/020:40:160
237538999696,0cyclictest0-21swapper/722:20:587
237538999695,1cyclictest0-21swapper/722:29:337
237534999696,0cyclictest553-21snmpd00:20:066
237534999695,1cyclictest553-21snmpd22:13:436
237534999695,1cyclictest553-21snmpd22:00:456
237530999696,0cyclictest0-21swapper/520:40:285
237530999695,1cyclictest553-21snmpd00:39:385
237530999695,1cyclictest553-21snmpd00:31:025
237530999695,1cyclictest0-21swapper/520:50:495
237530999695,1cyclictest0-21swapper/500:20:245
237530999695,1cyclictest0-21swapper/500:15:145
237530999694,2cyclictest553-21snmpd22:23:125
237530999693,3cyclictest553-21snmpd22:53:375
237526999696,0cyclictest553-21snmpd21:55:444
237526999696,0cyclictest553-21snmpd20:14:464
237526999695,1cyclictest553-21snmpd23:19:594
237524999695,1cyclictest553-21snmpd22:31:223
237524999695,1cyclictest553-21snmpd22:25:273
237524999695,1cyclictest553-21snmpd20:24:033
237524999694,2cyclictest553-21snmpd21:25:393
237524999694,2cyclictest553-21snmpd21:25:393
237519999696,0cyclictest553-21snmpd20:50:222
237519999696,0cyclictest238754-21memory19:10:152
237519999696,0cyclictest0-21swapper/223:43:262
237519999695,1cyclictest31-21ksoftirqd/222:17:242
237519999695,1cyclictest0-21swapper/220:42:092
23751999960,96cyclictest0-21swapper/220:05:152
23751999960,95cyclictest276973-21apt-get20:25:112
237512999696,0cyclictest553-21snmpd21:14:311
237512999696,0cyclictest553-21snmpd00:20:261
237512999696,0cyclictest553-21snmpd00:07:051
237512999695,1cyclictest0-21swapper/119:44:111
237512999693,3cyclictest553-21snmpd20:45:271
23751299960,96cyclictest0-21swapper/122:10:301
237506999696,0cyclictest553-21snmpd22:14:300
237506999696,0cyclictest553-21snmpd00:36:480
237506999695,1cyclictest553-21snmpd23:57:400
237506999695,1cyclictest553-21snmpd23:01:170
237506999695,1cyclictest553-21snmpd20:03:030
237506999695,1cyclictest0-21swapper/020:05:150
237506999695,1cyclictest0-21swapper/000:17:370
237538999595,0cyclictest0-21swapper/723:22:297
237538999594,1cyclictest0-21swapper/720:10:147
237538999594,1cyclictest0-21swapper/720:04:327
237534999595,0cyclictest553-21snmpd20:35:486
237534999595,0cyclictest241253-21cat19:15:016
237534999595,0cyclictest0-21swapper/622:46:386
237534999595,0cyclictest0-21swapper/621:47:396
237534999594,1cyclictest553-21snmpd20:10:246
237534999593,1cyclictest0-21swapper/600:18:526
237530999594,1cyclictest553-21snmpd20:55:195
237526999595,0cyclictest0-21swapper/423:11:484
237526999595,0cyclictest0-21swapper/422:20:184
237526999595,0cyclictest0-21swapper/422:14:494
237526999594,0cyclictest0-21swapper/420:34:274
237526999592,2cyclictest0-21swapper/419:49:594
237524999595,0cyclictest553-21snmpd23:16:083
237524999594,1cyclictest553-21snmpd21:36:353
237524999594,1cyclictest553-21snmpd21:36:353
237524999594,1cyclictest553-21snmpd00:20:483
237519999595,0cyclictest0-21swapper/219:35:112
237519999594,0cyclictest141rcu_preempt19:55:152
237512999595,0cyclictest0-21swapper/119:31:591
237512999594,1cyclictest553-21snmpd21:22:061
237512999594,1cyclictest553-21snmpd21:19:411
237512999594,1cyclictest553-21snmpd20:33:431
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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