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2026-08-18 - 11:08

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #1, slot #6

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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  Intel
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
Compare latency of primary with shadow system
Characteristics of the 792 highest latencies:
System rack1slot6s.osadl.org (updated Tue Aug 18, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
940999943,12cyclictest0-21swapper/022:02:010
9409999329,11cyclictest1227-21runrttasks20:59:150
940999923,50cyclictest17700-21unixbench-2d20:14:190
940999904,43cyclictest0-21swapper/022:14:000
940999894,45cyclictest0-21swapper/022:58:540
940999864,21cyclictest0-21swapper/017:59:140
940999864,21cyclictest0-21swapper/017:59:140
297242720,6sleep20-21swapper/222:59:132
941199684,55cyclictest0-21swapper/218:54:082
941199665,52cyclictest0-21swapper/223:09:142
9410996537,9cyclictest5856-21cat18:53:501
941199643,46cyclictest0-21swapper/219:59:112
941199643,46cyclictest0-21swapper/219:59:112
59012644,13sleep30-21swapper/319:59:023
59012644,13sleep30-21swapper/319:59:023
941299634,43cyclictest0-21swapper/322:06:103
941299634,43cyclictest0-21swapper/322:06:103
9412996323,26cyclictest8827-21fschecks_count22:28:583
941199634,51cyclictest0-21swapper/221:06:582
940999633,54cyclictest0-21swapper/021:24:050
940999633,54cyclictest0-21swapper/021:24:050
940999633,53cyclictest0-21swapper/021:48:190
9410996226,13cyclictest0-21swapper/120:29:051
9410996219,23cyclictest0-21swapper/120:19:061
219499620,4rtkit-daemon0-21swapper/222:27:443
941299615,48cyclictest0-21swapper/322:19:153
941199614,49cyclictest0-21swapper/222:49:032
941199614,12cyclictest0-21swapper/222:03:592
941199614,12cyclictest0-21swapper/222:03:592
941199613,8cyclictest1227-21runrttasks23:21:402
941199613,50cyclictest28993-21timerwakeupswit22:09:152
941199613,12cyclictest0-21swapper/221:44:142
941099616,14cyclictest0-21swapper/120:09:151
941199604,11cyclictest0-21swapper/220:48:572
9410996024,16cyclictest0-21swapper/122:43:401
941299593,11cyclictest21618-21gltestperf21:59:003
9412995918,25cyclictest1227-21runrttasks22:55:553
9412995912,12cyclictest0-21swapper/320:23:433
941199594,11cyclictest0-21swapper/222:23:562
941199594,11cyclictest0-21swapper/222:19:162
941199594,11cyclictest0-21swapper/219:53:572
9411995910,43cyclictest0-21swapper/221:29:482
941099596,15cyclictest0-21swapper/118:44:011
9410995939,14cyclictest0-21swapper/123:07:081
940999594,49cyclictest0-21swapper/020:31:250
940999594,46cyclictest0-21swapper/022:49:160
9409995921,31cyclictest15295-21df_abs22:38:570
227932593,49sleep10-21swapper/119:29:011
941299587,14cyclictest0-21swapper/320:39:163
941299587,14cyclictest0-21swapper/320:39:163
941299586,13cyclictest15036-21python20:59:143
941299585,34cyclictest0-21swapper/321:58:123
941299585,14cyclictest0-21swapper/322:16:223
941299585,13cyclictest0-21swapper/318:39:223
941299585,13cyclictest0-21swapper/318:39:223
941199583,7cyclictest1818-21ssh20:39:202
941199583,7cyclictest1818-21ssh20:39:202
941199583,49cyclictest0-21swapper/220:16:102
941199583,29cyclictest30266-21tr21:23:582
941199583,29cyclictest30266-21tr21:23:582
9411995812,26cyclictest0-21swapper/220:27:072
9410995840,12cyclictest0-21swapper/120:48:451
9410995840,12cyclictest0-21swapper/120:48:451
941099584,39cyclictest0-21swapper/122:16:581
9410995820,13cyclictest16823-21munin-node21:04:201
138482583,9sleep22207-21metacity17:59:492
138482583,9sleep22207-21metacity17:59:492
941299574,23cyclictest0-21swapper/320:10:283
941299574,14cyclictest0-21swapper/323:13:533
941299574,13cyclictest0-21swapper/322:58:573
941199573,47cyclictest0-21swapper/223:06:252
9411995729,11cyclictest1124-21snmpd19:35:222
9411995723,13cyclictest0-21swapper/221:58:412
9410995740,12cyclictest0-21swapper/122:04:201
9410995740,12cyclictest0-21swapper/122:04:201
9410995739,12cyclictest0-21swapper/121:33:441
9410995739,11cyclictest0-21swapper/121:59:021
9410995738,13cyclictest2436-21head22:19:011
64052573,46sleep10-21swapper/123:14:001
231312574,13sleep20-21swapper/222:01:252
146232573,12sleep20-21swapper/220:09:582
941299565,31cyclictest0-21swapper/319:32:263
941299564,13cyclictest0-21swapper/322:12:393
941299563,37cyclictest0-21swapper/320:44:563
941299563,37cyclictest0-21swapper/320:44:563
9412995621,14cyclictest0-21swapper/321:28:253
9412995621,14cyclictest0-21swapper/321:28:253
941199564,46cyclictest1227-21runrttasks21:00:222
941199564,46cyclictest0-21swapper/221:12:022
941199564,44cyclictest0-21swapper/220:03:592
941199563,11cyclictest0-21swapper/222:15:402
9410995640,10cyclictest0-21swapper/121:47:271
9410995629,12cyclictest2163-21aten2.4-expect23:08:531
9410995625,13cyclictest0-21swapper/120:08:311
9410995625,13cyclictest0-21swapper/119:59:021
9410995625,13cyclictest0-21swapper/119:59:021
9410995624,12cyclictest20984-21gltestperf21:09:051
9410995623,14cyclictest0-21swapper/123:21:201
9410995619,13cyclictest0-21swapper/122:44:511
9410995619,13cyclictest0-21swapper/122:44:511
9410995618,23cyclictest0-21swapper/120:36:151
940999563,46cyclictest0-21swapper/022:53:520
941299555,30cyclictest0-21swapper/323:20:053
9412995522,15cyclictest0-21swapper/321:49:183
9412995513,25cyclictest0-21swapper/321:36:203
941199554,44cyclictest0-21swapper/222:54:032
941199553,45cyclictest0-21swapper/222:45:572
941199553,45cyclictest0-21swapper/222:45:572
9411995516,23cyclictest28786-21ssh21:20:172
9411995512,26cyclictest28714-21munin-node18:34:212
941099555,31cyclictest0-21swapper/122:09:121
9410995538,12cyclictest0-21swapper/120:25:161
9410995538,10cyclictest6002-21munin-node18:54:071
941099553,38cyclictest0-21swapper/117:59:121
941099553,38cyclictest0-21swapper/117:59:121
9410995525,11cyclictest11138-21head20:54:041
940999553,46cyclictest3969-21ssh22:21:180
72032553,10sleep10-21swapper/121:38:261
38812553,44sleep20-21swapper/218:49:032
941299547,28cyclictest0-21swapper/322:41:103
941299544,30cyclictest0-21swapper/319:24:213
941299544,30cyclictest0-21swapper/319:24:213
941299544,28cyclictest0-21swapper/322:44:103
941299544,28cyclictest0-21swapper/322:44:103
9412995438,9cyclictest20955-21head21:09:043
9412995422,12cyclictest0-21swapper/323:08:273
9412995421,14cyclictest0-21swapper/319:14:193
9412995414,34cyclictest0-21swapper/319:23:483
9412995412,22cyclictest0-21swapper/322:34:113
9411995423,11cyclictest1124-21snmpd20:35:332
941099545,30cyclictest0-21swapper/121:38:591
941099545,28cyclictest0-21swapper/118:41:291
941099545,28cyclictest0-21swapper/118:41:291
941099544,29cyclictest0-21swapper/122:55:241
9410995438,11cyclictest0-21swapper/121:16:551
941099543,44cyclictest0-21swapper/120:40:301
941099543,44cyclictest0-21swapper/120:40:301
9410995427,13cyclictest0-21swapper/119:23:481
9410995424,10cyclictest27164-21df_abs21:18:591
9410995423,14cyclictest0-21swapper/121:52:151
9410995422,14cyclictest0-21swapper/122:58:561
9410995422,14cyclictest0-21swapper/122:26:411
9410995422,14cyclictest0-21swapper/119:14:071
9410995421,13cyclictest0-21swapper/122:35:171
9410995420,16cyclictest0-21swapper/122:31:351
9410995413,14cyclictest0-21swapper/120:49:211
940999545,43cyclictest0-21swapper/020:58:150
9409995434,13cyclictest0-21swapper/022:29:100
941299538,27cyclictest0-21swapper/321:29:033
941299536,28cyclictest0-21swapper/321:20:463
941299536,27cyclictest0-21swapper/320:25:443
941299535,31cyclictest0-21swapper/321:17:533
941299535,26cyclictest11278-21df21:43:583
941299534,8cyclictest7984-21iostat_ios20:49:083
941299534,29cyclictest0-21swapper/321:40:433
941299534,28cyclictest0-21swapper/318:30:113
941299534,27cyclictest0-21swapper/320:30:083
941299534,27cyclictest0-21swapper/320:05:273
9412995321,14cyclictest0-21swapper/320:35:253
9412995321,13cyclictest0-21swapper/318:34:163
9412995321,11cyclictest26965-21yum-updatesd-he19:35:223
941199533,43cyclictest0-21swapper/222:38:582
941199533,32cyclictest0-21swapper/219:18:482
9411995320,13cyclictest0-21swapper/219:48:472
941099536,29cyclictest0-21swapper/121:56:291
941099535,29cyclictest0-21swapper/119:54:001
941099535,29cyclictest0-21swapper/118:29:181
941099534,29cyclictest0-21swapper/118:20:091
9410995336,9cyclictest13163-21munin-node19:09:201
9410995323,14cyclictest0-21swapper/120:59:241
940999533,12cyclictest0-21swapper/021:35:270
940999533,12cyclictest0-21swapper/020:09:240
214002533,43sleep10-21swapper/119:24:131
214002533,43sleep10-21swapper/119:24:131
941299525,28cyclictest0-21swapper/318:15:083
941299525,25cyclictest17990-21memory21:04:103
941299524,33cyclictest0-21swapper/319:58:383
941299524,28cyclictest0-21swapper/322:49:113
941299524,28cyclictest0-21swapper/319:39:003
941299524,28cyclictest0-21swapper/318:04:263
941299524,26cyclictest0-21swapper/319:50:253
9412995220,13cyclictest0-21swapper/320:15:453
9412995220,12cyclictest0-21swapper/318:25:243
9412995219,14cyclictest0-21swapper/320:54:183
9412995218,14cyclictest0-21swapper/323:08:573
9412995218,13cyclictest0-21swapper/318:09:243
941199524,40cyclictest0-21swapper/217:54:212
9411995224,8cyclictest5245-21ssh21:34:052
9411995223,13cyclictest0-21swapper/220:54:062
9411995220,12cyclictest0-21swapper/220:33:402
941099527,27cyclictest0-21swapper/122:52:141
941099525,40cyclictest0-21swapper/118:04:191
941099525,28cyclictest0-21swapper/121:23:571
941099525,28cyclictest0-21swapper/121:23:571
941099525,28cyclictest0-21swapper/120:14:391
9410995223,13cyclictest0-21swapper/118:37:271
9410995218,13cyclictest0-21swapper/118:09:131
940999524,36cyclictest0-21swapper/020:52:290
940999524,12cyclictest0-21swapper/019:54:030
5012522,9sleep00-21swapper/018:40:110
5012522,9sleep00-21swapper/018:40:110
941299514,28cyclictest0-21swapper/318:45:133
941299514,27cyclictest0-21swapper/319:13:493
941199515,33cyclictest0-21swapper/221:49:382
941199514,10cyclictest0-21swapper/223:13:592
941199513,31cyclictest0-21swapper/220:43:542
941199513,31cyclictest0-21swapper/220:43:542
941199513,10cyclictest0-21swapper/222:34:152
941099515,27cyclictest0-21swapper/118:15:081
9410995120,11cyclictest0-21swapper/119:34:171
9410995118,12cyclictest30483-21cut19:44:071
940999515,29cyclictest0-21swapper/023:09:150
940999514,42cyclictest0-21swapper/018:19:030
940999514,40cyclictest0-21swapper/022:09:010
9409995132,13cyclictest0-21swapper/021:32:250
940999513,42cyclictest31111-21sed20:34:180
9409995123,23cyclictest0-21swapper/023:21:380
289282515,40sleep00-21swapper/021:20:510
222952512,9sleep20-21swapper/220:23:082
198622512,42sleep00-21swapper/019:21:020
193872513,39sleep219538-21tr18:14:042
941299505,25cyclictest0-21swapper/317:59:023
941299505,25cyclictest0-21swapper/317:59:023
941299504,27cyclictest0-21swapper/319:45:243
941299504,27cyclictest0-21swapper/318:53:503
941299504,27cyclictest0-21swapper/318:20:093
941299504,27cyclictest0-21swapper/317:53:523
9412995036,8cyclictest6439-21df_abs18:54:063
941299503,30cyclictest0-21swapper/317:54:043
941199506,38cyclictest10128-21ssh21:41:582
941199503,27cyclictest0-21swapper/218:04:152
9411995023,9cyclictest27478-21munin-node19:39:022
941099504,28cyclictest0-21swapper/118:24:021
941099504,27cyclictest0-21swapper/117:58:521
9410995030,14cyclictest0-21swapper/119:04:031
940999509,25cyclictest0-21swapper/021:11:560
940999505,28cyclictest0-21swapper/019:29:150
940999504,40cyclictest0-21swapper/022:34:150
940999504,39cyclictest0-21swapper/021:54:140
940999504,30cyclictest7150irq/45-ahci21:53:420
940999504,12cyclictest0-21swapper/020:24:060
9409995034,10cyclictest27171-21cut18:29:090
9409995023,12cyclictest0-21swapper/018:04:070
9409995021,23cyclictest0-21swapper/021:14:140
186182502,42sleep00-21swapper/018:09:470
174062502,42sleep00-21swapper/019:15:050
941299494,27cyclictest0-21swapper/319:04:273
941199494,38cyclictest0-21swapper/221:17:062
9411994919,22cyclictest12044-21ntpdc19:04:172
9411994910,34cyclictest0-21swapper/222:29:162
941099494,27cyclictest0-21swapper/119:50:251
940999496,38cyclictest0-21swapper/021:39:090
940999496,12cyclictest0-21swapper/020:03:500
940999495,38cyclictest0-21swapper/022:48:260
940999495,38cyclictest0-21swapper/022:48:260
940999495,38cyclictest0-21swapper/020:20:450
940999495,36cyclictest0-21swapper/022:03:540
940999495,36cyclictest0-21swapper/022:03:540
940999494,40cyclictest0-21swapper/023:17:570
9409994921,13cyclictest0-21swapper/019:49:040
9409994921,11cyclictest7501-21head19:59:220
9409994921,11cyclictest7501-21head19:59:220
74982493,39sleep00-21swapper/022:27:150
63522495,9sleep00-21swapper/020:47:330
63522495,9sleep00-21swapper/020:47:330
9412994831,10cyclictest8724-21cpuspeed_turbos18:59:043
941199483,41cyclictest0-21swapper/218:10:272
941199483,26cyclictest0-21swapper/218:19:062
9411994828,13cyclictest23025-21cpuspeed_turbos19:29:022
941099483,23cyclictest29262-21users19:39:231
940999485,38cyclictest0-21swapper/023:04:070
940999485,12cyclictest0-21swapper/021:04:050
9409994820,13cyclictest0-21swapper/020:38:490
9409994820,13cyclictest0-21swapper/020:38:490
211222484,9sleep00-21swapper/018:16:200
149952482,39sleep00-21swapper/019:09:450
128322482,39sleep00-21swapper/019:07:400
117382482,9sleep00-21swapper/017:58:260
941199473,28cyclictest0-21swapper/218:48:492
941199473,27cyclictest0-21swapper/219:49:042
941199473,26cyclictest0-21swapper/219:03:492
9411994723,8cyclictest1124-21snmpd19:10:182
941099475,25cyclictest0-21swapper/119:03:481
940999473,37cyclictest0-21swapper/019:39:030
941199453,9cyclictest0-21swapper/219:24:102
941199453,9cyclictest0-21swapper/219:24:102
9411994522,8cyclictest1124-21snmpd18:40:132
9411994522,8cyclictest1124-21snmpd18:40:132
941099454,24cyclictest0-21swapper/117:53:521
940999455,33cyclictest0-21swapper/019:24:110
940999455,33cyclictest0-21swapper/019:24:110
940999455,33cyclictest0-21swapper/018:49:000
940999453,11cyclictest29991-21taskset19:44:020
940999444,32cyclictest0-21swapper/018:33:590
105282442,35sleep00-21swapper/019:03:450
941199433,26cyclictest26352-21telnet18:29:002
9411994328,9cyclictest25148-21strings18:24:162
9411994316,12cyclictest0-21swapper/219:19:192
940999434,12cyclictest0-21swapper/018:55:500
940999433,36cyclictest0-21swapper/018:25:340
940999433,35cyclictest0-21swapper/019:34:250
940999433,35cyclictest0-21swapper/018:48:280
90882424,31sleep20-21swapper/217:50:112
940999393,30cyclictest0-21swapper/017:53:510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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