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2026-07-27 - 09:03

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 Mon Jul 27, 2026 00:46:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111391610,5ptp4l0-21swapper/419:09:284
111391600,29ptp4l0-21swapper/019:06:040
1881915937,6phc2sys0-21swapper/119:08:531
48772570,1sleep41068-21runrttasks23:20:154
1351325746,7sleep70-21swapper/719:05:467
111391570,5ptp4l0-21swapper/519:05:205
84412560,0sleep30-21swapper/300:09:313
1349925241,7sleep20-21swapper/219:05:322
1357624736,6sleep60-21swapper/619:06:336
1192524735,7sleep30-21swapper/319:05:013
111391330,4ptp4l0-21swapper/122:05:141
111391330,0ptp4l0-21swapper/423:09:364
111391330,0ptp4l0-21swapper/322:20:153
111391330,0ptp4l0-21swapper/121:29:021
111391320,0ptp4l0-21swapper/123:06:221
111391320,0ptp4l0-21swapper/120:55:161
111391320,0ptp4l0-21swapper/100:16:571
111391320,0ptp4l0-21swapper/019:30:180
111391310,0ptp4l4872-21diskmemload22:50:214
111391310,0ptp4l4872-21diskmemload22:50:204
111391310,0ptp4l0-21swapper/523:26:005
111391310,0ptp4l0-21swapper/123:49:521
111391310,0ptp4l0-21swapper/123:01:191
111391310,0ptp4l0-21swapper/122:55:111
111391310,0ptp4l0-21swapper/122:16:191
111391310,0ptp4l0-21swapper/121:39:391
111391310,0ptp4l0-21swapper/121:31:341
111391310,0ptp4l0-21swapper/120:15:201
111391310,0ptp4l0-21swapper/100:36:161
111391300,2ptp4l0-21swapper/121:42:321
111391300,0ptp4l0-21swapper/523:59:585
111391300,0ptp4l0-21swapper/500:34:415
111391300,0ptp4l0-21swapper/420:50:204
111391300,0ptp4l0-21swapper/400:14:534
111391300,0ptp4l0-21swapper/123:43:271
111391300,0ptp4l0-21swapper/123:36:031
111391300,0ptp4l0-21swapper/123:22:451
111391300,0ptp4l0-21swapper/122:22:061
111391300,0ptp4l0-21swapper/122:14:021
111391300,0ptp4l0-21swapper/100:30:341
111391300,0ptp4l0-21swapper/100:13:151
111391300,0ptp4l0-21swapper/100:02:451
111391290,2ptp4l0-21swapper/123:55:551
111391290,0ptp4l0-21swapper/123:26:111
111391290,0ptp4l0-21swapper/119:55:281
111391290,0ptp4l0-21swapper/023:06:160
111391280,2ptp4l0-21swapper/123:14:061
111391280,1ptp4l20245-21ssh00:25:145
111391280,0ptp4l0-21swapper/123:19:381
111391280,0ptp4l0-21swapper/122:31:571
111391280,0ptp4l0-21swapper/121:50:181
111391280,0ptp4l0-21swapper/121:23:211
111391270,0ptp4l0-21swapper/523:46:535
111391270,0ptp4l0-21swapper/523:37:285
111391270,0ptp4l0-21swapper/522:53:095
111391270,0ptp4l0-21swapper/522:53:095
111391270,0ptp4l0-21swapper/520:35:135
111391270,0ptp4l0-21swapper/520:04:245
111391270,0ptp4l0-21swapper/500:11:075
111391270,0ptp4l0-21swapper/323:05:503
111391270,0ptp4l0-21swapper/123:51:251
111391270,0ptp4l0-21swapper/123:32:261
111391270,0ptp4l0-21swapper/122:47:421
111391270,0ptp4l0-21swapper/122:35:151
111391260,1ptp4l9297-21cut21:15:131
111391260,1ptp4l0-21swapper/022:25:160
111391260,0ptp4l0-21swapper/523:52:415
111391260,0ptp4l0-21swapper/523:21:365
111391260,0ptp4l0-21swapper/522:59:105
111391260,0ptp4l0-21swapper/521:30:405
111391260,0ptp4l0-21swapper/422:44:074
111391260,0ptp4l0-21swapper/421:18:264
111391260,0ptp4l0-21swapper/122:26:091
111391260,0ptp4l0-21swapper/121:08:261
111391260,0ptp4l0-21swapper/120:05:011
111391260,0ptp4l0-21swapper/119:46:251
111391260,0ptp4l0-21swapper/100:08:181
111391250,3ptp4l101ktimersoftd/022:55:320
111391250,1ptp4l22729-21latency_hist23:45:015
111391250,0ptp4l0-21swapper/523:01:405
111391250,0ptp4l0-21swapper/521:55:205
111391250,0ptp4l0-21swapper/521:45:175
111391250,0ptp4l0-21swapper/521:10:315
111391250,0ptp4l0-21swapper/520:30:175
111391250,0ptp4l0-21swapper/419:35:004
111391250,0ptp4l0-21swapper/400:07:544
111391250,0ptp4l0-21swapper/121:55:141
111391250,0ptp4l0-21swapper/120:21:441
111391250,0ptp4l0-21swapper/119:36:011
111391250,0ptp4l0-21swapper/119:30:131
111391250,0ptp4l0-21swapper/119:17:581
111391250,0ptp4l0-21swapper/000:16:550
111391240,3ptp4l241ktimersoftd/120:10:241
111391240,3ptp4l241ktimersoftd/120:10:241
111391240,2ptp4l0-21swapper/021:15:230
111391240,1ptp4l6739-21smart_sda00:05:215
111391240,1ptp4l41-21ksoftirqd/322:20:003
111391240,1ptp4l32035-21munin-run22:30:015
111391240,1ptp4l27592-21unixbench_singl20:45:185
111391240,0ptp4l0-21swapper/621:19:046
111391240,0ptp4l0-21swapper/523:17:575
111391240,0ptp4l0-21swapper/523:13:095
111391240,0ptp4l0-21swapper/523:06:345
111391240,0ptp4l0-21swapper/522:48:065
111391240,0ptp4l0-21swapper/522:24:385
111391240,0ptp4l0-21swapper/522:08:365
111391240,0ptp4l0-21swapper/521:38:155
111391240,0ptp4l0-21swapper/521:20:565
111391240,0ptp4l0-21swapper/521:00:175
111391240,0ptp4l0-21swapper/520:45:005
111391240,0ptp4l0-21swapper/500:20:145
111391240,0ptp4l0-21swapper/422:22:174
111391240,0ptp4l0-21swapper/422:09:184
111391240,0ptp4l0-21swapper/421:14:424
111391240,0ptp4l0-21swapper/420:07:364
111391240,0ptp4l0-21swapper/122:50:471
111391240,0ptp4l0-21swapper/122:50:471
111391240,0ptp4l0-21swapper/122:40:171
111391240,0ptp4l0-21swapper/120:47:121
111391240,0ptp4l0-21swapper/120:06:531
111391240,0ptp4l0-21swapper/100:25:231
111391240,0ptp4l0-21swapper/100:20:171
111391240,0ptp4l0-21swapper/019:15:190
111391230,2ptp4l0-21swapper/020:09:090
111391230,1ptp4l31826-21sh23:12:314
111391230,1ptp4l29064-21ssh22:25:122
111391230,1ptp4l26638-21diskstats19:35:135
111391230,1ptp4l17943-21kworker/u16:123:44:454
111391230,1ptp4l14969-21smartctl20:20:135
111391230,1ptp4l1484-21rm21:47:261
111391230,1ptp4l14284-21latency_hist20:20:000
111391230,0ptp4l0-21swapper/723:05:187
111391230,0ptp4l0-21swapper/722:20:157
111391230,0ptp4l0-21swapper/622:25:136
111391230,0ptp4l0-21swapper/523:30:145
111391230,0ptp4l0-21swapper/522:40:135
111391230,0ptp4l0-21swapper/522:35:225
111391230,0ptp4l0-21swapper/522:15:125
111391230,0ptp4l0-21swapper/522:10:145
111391230,0ptp4l0-21swapper/522:01:435
111391230,0ptp4l0-21swapper/521:50:105
111391230,0ptp4l0-21swapper/521:43:465
111391230,0ptp4l0-21swapper/521:25:185
111391230,0ptp4l0-21swapper/521:15:165
111391230,0ptp4l0-21swapper/521:05:145
111391230,0ptp4l0-21swapper/520:25:205
111391230,0ptp4l0-21swapper/520:10:115
111391230,0ptp4l0-21swapper/520:10:105
111391230,0ptp4l0-21swapper/520:05:215
111391230,0ptp4l0-21swapper/519:55:115
111391230,0ptp4l0-21swapper/519:45:195
111391230,0ptp4l0-21swapper/519:27:205
111391230,0ptp4l0-21swapper/519:15:135
111391230,0ptp4l0-21swapper/519:10:125
111391230,0ptp4l0-21swapper/500:37:535
111391230,0ptp4l0-21swapper/500:15:135
111391230,0ptp4l0-21swapper/500:00:235
111391230,0ptp4l0-21swapper/423:27:184
111391230,0ptp4l0-21swapper/422:10:154
111391230,0ptp4l0-21swapper/421:50:454
111391230,0ptp4l0-21swapper/419:19:434
111391230,0ptp4l0-21swapper/221:10:212
111391230,0ptp4l0-21swapper/122:00:161
111391230,0ptp4l0-21swapper/121:12:351
111391230,0ptp4l0-21swapper/121:00:111
111391230,0ptp4l0-21swapper/120:41:101
111391230,0ptp4l0-21swapper/120:37:591
111391230,0ptp4l0-21swapper/120:25:161
111391230,0ptp4l0-21swapper/119:10:111
111391230,0ptp4l0-21swapper/023:19:520
111391230,0ptp4l0-21swapper/022:41:470
111391230,0ptp4l0-21swapper/022:35:170
111391230,0ptp4l0-21swapper/021:10:170
111391230,0ptp4l0-21swapper/020:30:160
111391230,0ptp4l0-21swapper/019:40:200
111391230,0ptp4l0-21swapper/019:25:170
111391230,0ptp4l0-21swapper/000:00:190
111391220,0ptp4l0-21swapper/522:30:175
111391220,0ptp4l0-21swapper/520:55:145
111391220,0ptp4l0-21swapper/520:15:175
111391220,0ptp4l0-21swapper/519:50:135
111391220,0ptp4l0-21swapper/519:40:125
111391220,0ptp4l0-21swapper/519:20:125
111391220,0ptp4l0-21swapper/423:56:454
111391220,0ptp4l0-21swapper/423:47:274
111391220,0ptp4l0-21swapper/423:18:144
111391220,0ptp4l0-21swapper/421:45:184
111391220,0ptp4l0-21swapper/421:43:444
111391220,0ptp4l0-21swapper/421:37:564
111391220,0ptp4l0-21swapper/420:35:154
111391220,0ptp4l0-21swapper/420:14:584
111391220,0ptp4l0-21swapper/420:14:574
111391220,0ptp4l0-21swapper/419:40:194
111391220,0ptp4l0-21swapper/419:25:184
111391220,0ptp4l0-21swapper/400:38:304
111391220,0ptp4l0-21swapper/400:16:404
111391220,0ptp4l0-21swapper/400:00:174
111391220,0ptp4l0-21swapper/120:30:141
111391220,0ptp4l0-21swapper/119:53:531
111391220,0ptp4l0-21swapper/119:20:131
111391220,0ptp4l0-21swapper/023:40:120
111391220,0ptp4l0-21swapper/023:30:190
111391220,0ptp4l0-21swapper/023:20:220
111391220,0ptp4l0-21swapper/022:49:560
111391220,0ptp4l0-21swapper/022:30:150
111391220,0ptp4l0-21swapper/022:10:140
111391220,0ptp4l0-21swapper/022:06:280
111391220,0ptp4l0-21swapper/021:45:170
111391220,0ptp4l0-21swapper/020:50:160
111391220,0ptp4l0-21swapper/020:10:150
111391220,0ptp4l0-21swapper/020:10:140
111391220,0ptp4l0-21swapper/000:39:150
111391220,0ptp4l0-21swapper/000:29:120
111391220,0ptp4l0-21swapper/000:21:280
6692210,1sleep233-21ksoftirqd/221:00:092
111391210,0ptp4l0-21swapper/519:31:355
111391210,0ptp4l0-21swapper/423:53:244
111391210,0ptp4l0-21swapper/423:37:474
111391210,0ptp4l0-21swapper/422:57:564
111391210,0ptp4l0-21swapper/422:46:394
111391210,0ptp4l0-21swapper/422:35:184
111391210,0ptp4l0-21swapper/422:33:234
111391210,0ptp4l0-21swapper/422:02:454
111391210,0ptp4l0-21swapper/421:32:264
111391210,0ptp4l0-21swapper/421:22:414
111391210,0ptp4l0-21swapper/400:32:324
111391210,0ptp4l0-21swapper/400:28:044
111391210,0ptp4l0-21swapper/400:21:134
111391210,0ptp4l0-21swapper/222:42:282
111391210,0ptp4l0-21swapper/222:00:192
111391210,0ptp4l0-21swapper/120:50:011
111391210,0ptp4l0-21swapper/023:45:100
111391210,0ptp4l0-21swapper/023:39:010
111391210,0ptp4l0-21swapper/023:27:030
111391210,0ptp4l0-21swapper/023:11:590
111391210,0ptp4l0-21swapper/022:53:070
111391210,0ptp4l0-21swapper/022:53:060
111391210,0ptp4l0-21swapper/022:20:520
111391210,0ptp4l0-21swapper/021:57:320
111391210,0ptp4l0-21swapper/021:50:410
111391210,0ptp4l0-21swapper/021:43:050
111391210,0ptp4l0-21swapper/021:35:420
111391210,0ptp4l0-21swapper/021:32:270
111391210,0ptp4l0-21swapper/021:26:340
111391210,0ptp4l0-21swapper/020:35:160
111391210,0ptp4l0-21swapper/000:07:070
111391200,0ptp4l23892-21ssh23:01:000
111391200,0ptp4l0-21swapper/621:14:256
111391200,0ptp4l0-21swapper/520:52:255
111391200,0ptp4l0-21swapper/423:32:384
111391200,0ptp4l0-21swapper/423:02:184
111391200,0ptp4l0-21swapper/422:29:484
111391200,0ptp4l0-21swapper/421:29:584
111391200,0ptp4l0-21swapper/223:53:322
111391200,0ptp4l0-21swapper/223:09:452
111391200,0ptp4l0-21swapper/221:16:322
111391200,0ptp4l0-21swapper/119:41:281
111391200,0ptp4l0-21swapper/119:29:271
111391200,0ptp4l0-21swapper/023:54:020
111391200,0ptp4l0-21swapper/022:18:510
111391200,0ptp4l0-21swapper/020:00:150
111391200,0ptp4l0-21swapper/000:34:510
153312190,1sleep61068-21runrttasks21:22:256
111391190,0ptp4l0-21swapper/422:16:454
111391190,0ptp4l0-21swapper/221:43:182
111391190,0ptp4l0-21swapper/023:55:520
111391190,0ptp4l0-21swapper/022:00:370
111391190,0ptp4l0-21swapper/021:20:370
111391190,0ptp4l0-21swapper/019:14:290
111391180,0ptp4l0-21swapper/623:53:306
111391180,0ptp4l0-21swapper/421:55:514
111391180,0ptp4l0-21swapper/420:43:184
111391180,0ptp4l0-21swapper/000:13:590
111391170,2ptp4l0-21swapper/020:21:290
111391170,2ptp4l0-21swapper/019:38:480
111391170,0ptp4l0-21swapper/420:30:174
111391170,0ptp4l0-21swapper/420:25:014
164592160,0sleep30-21swapper/323:35:203
111391160,0ptp4l0-21swapper/420:55:544
111391160,0ptp4l0-21swapper/419:38:404
111391160,0ptp4l0-21swapper/200:27:492
111391160,0ptp4l0-21swapper/020:40:530
111391160,0ptp4l0-21swapper/020:29:250
111391160,0ptp4l0-21swapper/019:49:140
1414599150,14cyclictest0-21swapper/700:14:497
111391150,0ptp4l0-21swapper/623:09:446
111391150,0ptp4l0-21swapper/622:00:206
111391150,0ptp4l0-21swapper/620:48:046
111391150,0ptp4l0-21swapper/620:32:306
111391150,0ptp4l0-21swapper/421:02:084
111391150,0ptp4l0-21swapper/420:47:594
111391150,0ptp4l0-21swapper/420:28:044
111391150,0ptp4l0-21swapper/420:16:354
111391150,0ptp4l0-21swapper/420:00:374
111391150,0ptp4l0-21swapper/419:56:074
111391150,0ptp4l0-21swapper/419:45:274
111391150,0ptp4l0-21swapper/419:20:564
111391150,0ptp4l0-21swapper/419:10:014
111391150,0ptp4l0-21swapper/220:28:032
111391150,0ptp4l0-21swapper/021:09:300
111391150,0ptp4l0-21swapper/021:00:450
111391150,0ptp4l0-21swapper/020:56:310
111391150,0ptp4l0-21swapper/020:46:250
111391150,0ptp4l0-21swapper/019:56:020
111391150,0ptp4l0-21swapper/019:51:550
111391150,0ptp4l0-21swapper/019:21:020
273702140,0sleep227373-21proc_pri19:35:192
1414599140,4cyclictest0-21swapper/700:33:457
1414599140,4cyclictest0-21swapper/700:22:557
1414599140,13cyclictest0-21swapper/723:45:227
1414599140,13cyclictest0-21swapper/723:11:147
1414599140,13cyclictest0-21swapper/721:44:317
1414599140,13cyclictest0-21swapper/721:11:057
111391140,0ptp4l0-21swapper/421:07:394
111391140,0ptp4l0-21swapper/419:51:554
111391140,0ptp4l0-21swapper/220:48:042
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1414099110,10cyclictest0-21swapper/623:39:576
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1414599100,3cyclictest0-21swapper/720:27:297
1414599100,0cyclictest0-21swapper/721:20:467
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1414099109,0cyclictest0-21swapper/622:44:576
1414099109,0cyclictest0-21swapper/622:39:286
1414099109,0cyclictest0-21swapper/600:23:106
1414099100,9cyclictest0-21swapper/623:18:366
1414099100,9cyclictest0-21swapper/623:12:566
1414099100,9cyclictest0-21swapper/621:26:046
1414099100,0cyclictest0-21swapper/621:55:566
1414099100,0cyclictest0-21swapper/600:34:026
1411799109,0cyclictest0-21swapper/322:30:443
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1411799100,9cyclictest0-21swapper/323:04:593
1411799100,9cyclictest0-21swapper/322:36:223
1411799100,9cyclictest0-21swapper/321:51:263
1411199109,0cyclictest0-21swapper/223:12:472
1411199100,9cyclictest0-21swapper/222:37:262
1411199100,9cyclictest0-21swapper/222:31:372
1411199100,9cyclictest0-21swapper/222:08:212
1411199100,9cyclictest0-21swapper/221:25:002
1411199100,9cyclictest0-21swapper/200:38:452
1411199100,9cyclictest0-21swapper/200:15:492
1411199100,9cyclictest0-21swapper/200:04:102
1411199100,0cyclictest0-21swapper/223:00:512
141459998,0cyclictest0-21swapper/700:06:347
141459996,2cyclictest0-21swapper/722:39:307
141459996,2cyclictest0-21swapper/722:28:397
141459996,2cyclictest0-21swapper/700:38:487
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