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2026-04-08 - 11:05

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 Wed Apr 08, 2026 00:46:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111391660,5ptp4l0-21swapper/419:06:084
111391660,5ptp4l0-21swapper/419:06:074
111391650,0ptp4l6922-21cat21:40:121
111391620,30ptp4l0-21swapper/319:07:313
111391620,30ptp4l0-21swapper/319:07:303
111391610,4ptp4l0-21swapper/019:09:040
111391610,4ptp4l0-21swapper/019:09:040
327572580,0sleep30-21swapper/321:30:183
221082580,0sleep20-21swapper/223:32:012
34212570,0sleep50-21swapper/500:37:405
1881915734,6phc2sys0-21swapper/119:06:321
1881915734,6phc2sys0-21swapper/119:06:311
2535125543,7sleep70-21swapper/719:06:067
2535125543,7sleep70-21swapper/719:06:067
2546425140,7sleep20-21swapper/219:07:372
2546425140,7sleep20-21swapper/219:07:362
2536825140,6sleep60-21swapper/619:06:216
2536825140,6sleep60-21swapper/619:06:206
2536724635,7sleep50-21swapper/519:06:205
2536724635,7sleep50-21swapper/519:06:195
118142450,0sleep20-21swapper/200:04:302
111391350,0ptp4l0-21swapper/419:40:164
111391340,0ptp4l0-21swapper/519:45:115
111391310,0ptp4l0-21swapper/500:15:175
111391310,0ptp4l0-21swapper/500:15:175
111391310,0ptp4l0-21swapper/422:38:544
111391310,0ptp4l0-21swapper/421:53:414
111391300,0ptp4l0-21swapper/022:17:380
111391290,0ptp4l0-21swapper/722:39:407
111391290,0ptp4l0-21swapper/423:28:264
111391290,0ptp4l0-21swapper/421:49:204
111391290,0ptp4l0-21swapper/421:27:244
111391290,0ptp4l0-21swapper/122:34:341
111391290,0ptp4l0-21swapper/022:21:560
111391280,2ptp4l0-21swapper/421:15:174
111391280,0ptp4l0-21swapper/523:13:185
111391280,0ptp4l0-21swapper/523:06:275
111391280,0ptp4l0-21swapper/522:56:395
111391280,0ptp4l0-21swapper/500:25:335
111391280,0ptp4l0-21swapper/423:35:114
111391280,0ptp4l0-21swapper/423:32:384
111391280,0ptp4l0-21swapper/423:01:014
111391280,0ptp4l0-21swapper/400:32:564
111391280,0ptp4l0-21swapper/123:20:161
111391280,0ptp4l0-21swapper/123:05:591
111391270,3ptp4l0-21swapper/300:04:303
111391270,0ptp4l0-21swapper/523:58:335
111391270,0ptp4l0-21swapper/519:25:145
111391270,0ptp4l0-21swapper/423:50:024
111391270,0ptp4l0-21swapper/422:20:044
111391270,0ptp4l0-21swapper/421:38:364
111391270,0ptp4l0-21swapper/421:38:364
111391270,0ptp4l0-21swapper/421:10:214
111391270,0ptp4l0-21swapper/121:29:381
111391270,0ptp4l0-21swapper/023:24:090
111391270,0ptp4l0-21swapper/023:16:080
111391270,0ptp4l0-21swapper/019:55:170
111391260,3ptp4l0-21swapper/423:14:314
111391260,1ptp4l7252-21grep22:25:180
111391260,0ptp4l0-21swapper/522:20:125
111391260,0ptp4l0-21swapper/423:45:464
111391260,0ptp4l0-21swapper/422:43:534
111391260,0ptp4l0-21swapper/400:16:314
111391260,0ptp4l0-21swapper/400:16:314
111391260,0ptp4l0-21swapper/222:50:522
111391260,0ptp4l0-21swapper/123:03:221
111391260,0ptp4l0-21swapper/122:49:101
111391260,0ptp4l0-21swapper/122:06:541
111391260,0ptp4l0-21swapper/121:30:471
111391260,0ptp4l0-21swapper/100:23:331
111391260,0ptp4l0-21swapper/100:01:501
111391260,0ptp4l0-21swapper/021:34:290
111391260,0ptp4l0-21swapper/021:12:000
111391260,0ptp4l0-21swapper/000:02:270
111391250,1ptp4l6573-21memory23:10:160
111391250,1ptp4l26699-21rm21:21:551
111391250,1ptp4l11287-21smartctl20:55:204
111391250,1ptp4l0-21swapper/522:46:575
111391250,0ptp4l0-21swapper/523:23:075
111391250,0ptp4l0-21swapper/522:09:395
111391250,0ptp4l0-21swapper/521:27:515
111391250,0ptp4l0-21swapper/519:35:205
111391250,0ptp4l0-21swapper/500:11:565
111391250,0ptp4l0-21swapper/500:11:565
111391250,0ptp4l0-21swapper/422:55:164
111391250,0ptp4l0-21swapper/422:51:114
111391250,0ptp4l0-21swapper/420:20:004
111391250,0ptp4l0-21swapper/400:23:234
111391250,0ptp4l0-21swapper/123:55:171
111391250,0ptp4l0-21swapper/123:51:031
111391250,0ptp4l0-21swapper/123:19:141
111391250,0ptp4l0-21swapper/123:10:021
111391250,0ptp4l0-21swapper/023:51:520
111391250,0ptp4l0-21swapper/023:00:150
111391250,0ptp4l0-21swapper/000:09:570
111391240,1ptp4l9193-21if_enp0s2500:00:144
111391240,1ptp4l6152-21munin-run21:40:001
111391240,1ptp4l6152-21munin-run21:40:001
111391240,1ptp4l5858-21df20:45:124
111391240,1ptp4l32542-21unixbench_singl20:30:194
111391240,1ptp4l321ktimersoftd/200:09:352
111391240,1ptp4l29285-21df_inode19:15:121
111391240,1ptp4l24211-21fw_conntrack22:50:120
111391240,1ptp4l20835-21cpuspeed_turbos22:00:110
111391240,1ptp4l12715-21fw_conntrack00:05:137
111391240,0ptp4l7223-21ssh23:56:224
111391240,0ptp4l0-21swapper/700:04:207
111391240,0ptp4l0-21swapper/622:04:356
111391240,0ptp4l0-21swapper/523:03:235
111391240,0ptp4l0-21swapper/522:33:125
111391240,0ptp4l0-21swapper/521:33:475
111391240,0ptp4l0-21swapper/520:45:215
111391240,0ptp4l0-21swapper/519:30:175
111391240,0ptp4l0-21swapper/519:15:115
111391240,0ptp4l0-21swapper/423:43:124
111391240,0ptp4l0-21swapper/422:26:044
111391240,0ptp4l0-21swapper/421:30:194
111391240,0ptp4l0-21swapper/420:00:204
111391240,0ptp4l0-21swapper/400:10:174
111391240,0ptp4l0-21swapper/400:10:174
111391240,0ptp4l0-21swapper/300:05:173
111391240,0ptp4l0-21swapper/122:56:201
111391240,0ptp4l0-21swapper/122:15:121
111391240,0ptp4l0-21swapper/121:57:521
111391240,0ptp4l0-21swapper/120:09:591
111391240,0ptp4l0-21swapper/119:25:141
111391240,0ptp4l0-21swapper/100:25:171
111391240,0ptp4l0-21swapper/100:17:441
111391240,0ptp4l0-21swapper/100:17:441
111391240,0ptp4l0-21swapper/023:35:110
111391240,0ptp4l0-21swapper/023:30:180
111391240,0ptp4l0-21swapper/022:35:180
111391240,0ptp4l0-21swapper/021:45:330
111391240,0ptp4l0-21swapper/021:15:150
111391240,0ptp4l0-21swapper/021:00:100
111391240,0ptp4l0-21swapper/019:20:130
111391240,0ptp4l0-21swapper/019:15:140
111391240,0ptp4l0-21swapper/000:25:200
111391230,1ptp4l57-21ksoftirqd/523:26:025
111391230,1ptp4l25113-21nfs4_client20:15:171
111391230,1ptp4l15124-21sh22:36:055
111391230,0ptp4l26961-21cpu23:40:115
111391230,0ptp4l16685-21diskmemload22:30:134
111391230,0ptp4l0-21swapper/723:45:117
111391230,0ptp4l0-21swapper/723:44:327
111391230,0ptp4l0-21swapper/523:51:145
111391230,0ptp4l0-21swapper/523:46:265
111391230,0ptp4l0-21swapper/522:15:135
111391230,0ptp4l0-21swapper/522:10:195
111391230,0ptp4l0-21swapper/521:46:265
111391230,0ptp4l0-21swapper/521:40:155
111391230,0ptp4l0-21swapper/521:21:295
111391230,0ptp4l0-21swapper/521:05:135
111391230,0ptp4l0-21swapper/520:15:125
111391230,0ptp4l0-21swapper/520:15:005
111391230,0ptp4l0-21swapper/519:40:115
111391230,0ptp4l0-21swapper/519:10:125
111391230,0ptp4l0-21swapper/423:20:124
111391230,0ptp4l0-21swapper/423:15:164
111391230,0ptp4l0-21swapper/422:45:184
111391230,0ptp4l0-21swapper/422:05:564
111391230,0ptp4l0-21swapper/422:00:134
111391230,0ptp4l0-21swapper/421:59:174
111391230,0ptp4l0-21swapper/421:20:144
111391230,0ptp4l0-21swapper/421:00:184
111391230,0ptp4l0-21swapper/420:50:174
111391230,0ptp4l0-21swapper/420:10:204
111391230,0ptp4l0-21swapper/419:50:124
111391230,0ptp4l0-21swapper/400:35:174
111391230,0ptp4l0-21swapper/400:25:144
111391230,0ptp4l0-21swapper/323:15:123
111391230,0ptp4l0-21swapper/123:29:481
111391230,0ptp4l0-21swapper/122:25:011
111391230,0ptp4l0-21swapper/122:24:551
111391230,0ptp4l0-21swapper/122:10:181
111391230,0ptp4l0-21swapper/122:02:341
111391230,0ptp4l0-21swapper/119:55:111
111391230,0ptp4l0-21swapper/119:45:131
111391230,0ptp4l0-21swapper/119:10:141
111391230,0ptp4l0-21swapper/100:31:181
111391230,0ptp4l0-21swapper/100:10:511
111391230,0ptp4l0-21swapper/100:10:511
111391230,0ptp4l0-21swapper/023:56:450
111391230,0ptp4l0-21swapper/023:42:100
111391230,0ptp4l0-21swapper/023:25:200
111391230,0ptp4l0-21swapper/022:55:160
111391230,0ptp4l0-21swapper/022:45:150
111391230,0ptp4l0-21swapper/022:40:180
111391230,0ptp4l0-21swapper/022:30:150
111391230,0ptp4l0-21swapper/021:55:120
111391230,0ptp4l0-21swapper/021:50:160
111391230,0ptp4l0-21swapper/021:44:040
111391230,0ptp4l0-21swapper/021:35:120
111391230,0ptp4l0-21swapper/021:35:110
111391230,0ptp4l0-21swapper/021:25:010
111391230,0ptp4l0-21swapper/021:20:150
111391230,0ptp4l0-21swapper/020:35:130
111391230,0ptp4l0-21swapper/020:30:200
111391230,0ptp4l0-21swapper/020:20:190
111391230,0ptp4l0-21swapper/019:40:160
111391230,0ptp4l0-21swapper/019:30:140
111391230,0ptp4l0-21swapper/000:30:130
111391230,0ptp4l0-21swapper/000:19:500
111391230,0ptp4l0-21swapper/000:19:500
111391220,1ptp4l15036-21df21:05:121
111391220,0ptp4l0-21swapper/723:15:127
111391220,0ptp4l0-21swapper/622:21:206
111391220,0ptp4l0-21swapper/523:19:355
111391220,0ptp4l0-21swapper/522:42:295
111391220,0ptp4l0-21swapper/522:25:025
111391220,0ptp4l0-21swapper/522:02:485
111391220,0ptp4l0-21swapper/521:57:145
111391220,0ptp4l0-21swapper/521:19:445
111391220,0ptp4l0-21swapper/521:13:125
111391220,0ptp4l0-21swapper/520:25:145
111391220,0ptp4l0-21swapper/520:00:525
111391220,0ptp4l0-21swapper/519:55:135
111391220,0ptp4l0-21swapper/500:24:045
111391220,0ptp4l0-21swapper/500:01:445
111391220,0ptp4l0-21swapper/423:05:004
111391220,0ptp4l0-21swapper/422:18:064
111391220,0ptp4l0-21swapper/422:13:404
111391220,0ptp4l0-21swapper/421:42:514
111391220,0ptp4l0-21swapper/421:10:004
111391220,0ptp4l0-21swapper/420:40:184
111391220,0ptp4l0-21swapper/420:35:184
111391220,0ptp4l0-21swapper/420:20:154
111391220,0ptp4l0-21swapper/420:05:104
111391220,0ptp4l0-21swapper/419:55:184
111391220,0ptp4l0-21swapper/419:30:294
111391220,0ptp4l0-21swapper/419:20:114
111391220,0ptp4l0-21swapper/400:06:444
111391220,0ptp4l0-21swapper/323:45:103
111391220,0ptp4l0-21swapper/323:44:283
111391220,0ptp4l0-21swapper/322:39:443
111391220,0ptp4l0-21swapper/222:57:422
111391220,0ptp4l0-21swapper/123:46:441
111391220,0ptp4l0-21swapper/123:41:101
111391220,0ptp4l0-21swapper/122:51:191
111391220,0ptp4l0-21swapper/122:42:121
111391220,0ptp4l0-21swapper/122:36:071
111391220,0ptp4l0-21swapper/121:19:421
111391220,0ptp4l0-21swapper/121:13:331
111391220,0ptp4l0-21swapper/120:45:191
111391220,0ptp4l0-21swapper/120:32:551
111391220,0ptp4l0-21swapper/120:10:121
111391220,0ptp4l0-21swapper/119:35:161
111391220,0ptp4l0-21swapper/119:31:111
111391220,0ptp4l0-21swapper/100:07:481
111391220,0ptp4l0-21swapper/023:07:180
111391220,0ptp4l0-21swapper/022:13:550
111391220,0ptp4l0-21swapper/022:08:010
111391220,0ptp4l0-21swapper/020:55:130
111391220,0ptp4l0-21swapper/020:50:140
111391220,0ptp4l0-21swapper/020:45:120
111391220,0ptp4l0-21swapper/020:40:150
111391220,0ptp4l0-21swapper/020:25:200
111391220,0ptp4l0-21swapper/020:19:500
111391220,0ptp4l0-21swapper/020:05:110
111391220,0ptp4l0-21swapper/020:00:130
111391220,0ptp4l0-21swapper/019:50:110
111391220,0ptp4l0-21swapper/019:45:170
111391220,0ptp4l0-21swapper/000:35:160
111391220,0ptp4l0-21swapper/000:20:120
111391220,0ptp4l0-21swapper/000:10:100
111391220,0ptp4l0-21swapper/000:10:100
172012210,0sleep70-21swapper/723:25:177
111391210,0ptp4l0-21swapper/700:30:257
111391210,0ptp4l0-21swapper/622:05:526
111391210,0ptp4l0-21swapper/523:37:445
111391210,0ptp4l0-21swapper/522:51:205
111391210,0ptp4l0-21swapper/500:31:495
111391210,0ptp4l0-21swapper/500:07:565
111391210,0ptp4l0-21swapper/420:25:204
111391210,0ptp4l0-21swapper/419:45:204
111391210,0ptp4l0-21swapper/419:38:164
111391210,0ptp4l0-21swapper/419:15:594
111391210,0ptp4l0-21swapper/419:12:054
111391210,0ptp4l0-21swapper/300:34:203
111391210,0ptp4l0-21swapper/223:53:442
111391210,0ptp4l0-21swapper/123:37:511
111391210,0ptp4l0-21swapper/121:54:321
111391210,0ptp4l0-21swapper/121:46:331
111391210,0ptp4l0-21swapper/120:25:151
111391210,0ptp4l0-21swapper/120:20:361
111391210,0ptp4l0-21swapper/100:39:551
111391210,0ptp4l0-21swapper/023:48:340
111391210,0ptp4l0-21swapper/019:35:300
111391200,0ptp4l0-21swapper/623:53:396
111391200,0ptp4l0-21swapper/622:57:296
111391200,0ptp4l0-21swapper/622:50:506
111391200,0ptp4l0-21swapper/620:55:436
111391200,0ptp4l0-21swapper/521:35:425
111391200,0ptp4l0-21swapper/521:35:415
111391200,0ptp4l0-21swapper/419:27:424
111391200,0ptp4l0-21swapper/222:21:142
111391200,0ptp4l0-21swapper/222:04:352
111391200,0ptp4l0-21swapper/221:14:492
111391200,0ptp4l0-21swapper/121:03:431
111391200,0ptp4l0-21swapper/120:43:411
111391200,0ptp4l0-21swapper/120:02:421
111391200,0ptp4l0-21swapper/119:53:251
111391200,0ptp4l0-21swapper/119:41:431
111391200,0ptp4l0-21swapper/021:08:300
111391190,0ptp4l0-21swapper/520:20:435
111391190,0ptp4l0-21swapper/519:51:585
111391190,0ptp4l0-21swapper/222:16:202
111391190,0ptp4l0-21swapper/120:57:171
111391180,0ptp4l0-21swapper/622:16:216
111391180,0ptp4l0-21swapper/523:30:455
111391180,0ptp4l0-21swapper/300:35:033
111391180,0ptp4l0-21swapper/221:45:052
111391180,0ptp4l0-21swapper/200:28:542
111391180,0ptp4l0-21swapper/123:30:421
111391180,0ptp4l0-21swapper/020:11:590
111391180,0ptp4l0-21swapper/019:27:460
111391180,0ptp4l0-21swapper/019:13:440
111391170,0ptp4l0-21swapper/700:35:047
111391170,0ptp4l0-21swapper/119:24:371
273922160,1sleep7711rcuc/700:25:177
111391160,0ptp4l0-21swapper/521:01:085
111391160,0ptp4l0-21swapper/520:56:575
111391160,0ptp4l0-21swapper/520:52:165
111391160,0ptp4l0-21swapper/223:20:472
111391160,0ptp4l0-21swapper/222:05:522
111391160,0ptp4l0-21swapper/120:51:061
111391160,0ptp4l0-21swapper/120:39:011
25975991511,3cyclictest30706-21turbostat23:00:007
25968991511,3cyclictest22449-21munin-run00:20:006
25968991511,3cyclictest22449-21munin-run00:20:006
25947991512,2cyclictest30937-21munin-run19:20:013
111391150,0ptp4l33-21ksoftirqd/220:24:012
111391150,0ptp4l0-21swapper/720:04:497
111391150,0ptp4l0-21swapper/719:10:407
111391150,0ptp4l0-21swapper/621:14:516
111391150,0ptp4l0-21swapper/621:03:026
111391150,0ptp4l0-21swapper/620:49:486
111391150,0ptp4l0-21swapper/620:24:166
111391150,0ptp4l0-21swapper/620:16:086
111391150,0ptp4l0-21swapper/600:28:576
111391150,0ptp4l0-21swapper/520:41:225
111391150,0ptp4l0-21swapper/520:39:075
111391150,0ptp4l0-21swapper/520:31:335
111391150,0ptp4l0-21swapper/520:05:215
111391150,0ptp4l0-21swapper/519:21:165
111391150,0ptp4l0-21swapper/319:10:293
111391150,0ptp4l0-21swapper/221:02:592
111391150,0ptp4l0-21swapper/220:31:002
111391150,0ptp4l0-21swapper/220:19:232
111391140,0ptp4l0-21swapper/622:39:066
111391140,0ptp4l0-21swapper/620:30:596
111391140,0ptp4l0-21swapper/619:51:236
111391140,0ptp4l0-21swapper/619:40:416
111391140,0ptp4l0-21swapper/600:09:346
111391140,0ptp4l0-21swapper/521:54:325
111391140,0ptp4l0-21swapper/320:04:393
111391140,0ptp4l0-21swapper/222:38:232
111391140,0ptp4l0-21swapper/220:55:412
111391140,0ptp4l0-21swapper/220:49:422
111391140,0ptp4l0-21swapper/219:51:232
111391140,0ptp4l0-21swapper/219:40:382
25947991310,1cyclictest12101-21turbostat21:00:003
2597599110,10cyclictest0-21swapper/721:13:107
2594099110,10cyclictest0-21swapper/200:13:402
2594099110,10cyclictest0-21swapper/200:13:402
2597599109,0cyclictest0-21swapper/722:45:067
2597599100,9cyclictest0-21swapper/722:28:557
2597599100,0cyclictest0-21swapper/721:56:427
2596899100,1cyclictest16685-21diskmemload21:19:436
2596899100,1cyclictest0-21swapper/621:20:026
2594099109,0cyclictest0-21swapper/222:12:392
2594099109,0cyclictest0-21swapper/221:51:172
2594099108,1cyclictest8336-21ssh22:26:482
2594099100,9cyclictest0-21swapper/222:43:372
259759998,0cyclictest0-21swapper/721:41:197
259759998,0cyclictest0-21swapper/719:25:327
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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