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2026-01-23 - 11:25
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OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, slot #4

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 highest latencies:
System rack7slot4s.osadl.org (updated Fri Jan 23, 2026 00:45:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27955996915,13cyclictest131rcu_preempt21:05:122
27955996135,15cyclictest27-21ksoftirqd/223:50:112
27963995737,17cyclictest28366irq/58-eth022:30:133
2795599522,38cyclictest17664-21ssh21:30:142
27955995222,14cyclictest131rcu_preempt23:20:132
27963994730,11cyclictest28366irq/58-eth023:55:123
27963994730,11cyclictest28366irq/58-eth023:55:123
2794799452,36cyclictest6684-21ssh22:00:141
2793999451,34cyclictest24723-21ssh22:10:120
2794799441,35cyclictest21487-21ssh00:15:141
2793999443,33cyclictest19220-21ssh22:25:120
2793999441,32cyclictest10350-21ssh22:20:140
2796399433,24cyclictest28366irq/58-eth021:20:163
2795599437,16cyclictest27-21ksoftirqd/220:35:132
2796399427,20cyclictest28366irq/58-eth019:25:123
27955994213,18cyclictest131rcu_preempt21:55:142
2796399402,23cyclictest28366irq/58-eth022:20:143
2795599383,26cyclictest2715-21ssh23:10:122
2796399376,16cyclictest28366irq/58-eth023:50:133
2795599377,23cyclictest27-21ksoftirqd/223:40:112
2795599372,18cyclictest7892-21sh22:17:392
27939993522,9cyclictest31899-21apt-get20:55:110
2795599342,21cyclictest13671-21diskmemload21:50:132
2794799346,19cyclictest3196-21ssh21:40:131
2794799344,19cyclictest8252-21ssh22:55:121
2793999341,27cyclictest14687-21ssh23:35:110
2796399335,15cyclictest0-21swapper/323:35:123
27955993311,7cyclictest7606-21kworker/2:123:15:132
2796399324,17cyclictest28366irq/58-eth023:15:123
2796399321,18cyclictest28366irq/58-eth022:55:123
2794799323,18cyclictest17224-21ssh23:00:151
2795599313,21cyclictest0-21swapper/219:20:042
27947993116,6cyclictest0-21swapper/119:30:111
2793999310,11cyclictest6686-21kthreadcore22:35:190
2796399303,17cyclictest0-21swapper/321:55:133
2795599303,21cyclictest0-21swapper/200:36:382
2795599302,21cyclictest0-21swapper/219:55:142
2795599301,20cyclictest924-21snmpd00:30:142
2794799305,11cyclictest21-21ksoftirqd/100:01:321
27947993015,8cyclictest21-21ksoftirqd/123:40:261
2793999301,23cyclictest8653-21ssh21:25:160
2793999301,23cyclictest8653-21ssh21:25:160
2796399295,12cyclictest0-21swapper/321:40:133
2795599292,11cyclictest19943-21ssh00:13:382
2794799293,5cyclictest21-21ksoftirqd/123:25:161
2794799291,4cyclictest21-21ksoftirqd/123:15:031
2794799291,4cyclictest21-21ksoftirqd/122:10:151
2793999292,4cyclictest12-21ksoftirqd/023:40:250
2793999292,22cyclictest22980-21sh23:01:380
2796399282,16cyclictest28366irq/58-eth021:10:133
2795599283,17cyclictest22346irq/40-dwc2_hso20:55:112
2795599283,15cyclictest22346irq/40-dwc2_hso19:50:112
2795599282,21cyclictest1201-21ssh23:08:372
2794799284,7cyclictest21-21ksoftirqd/122:50:191
2794799284,3cyclictest131rcu_preempt20:20:021
2794799283,5cyclictest21-21ksoftirqd/122:08:091
2794799282,16cyclictest32590-21ssh23:45:111
27947992812,6cyclictest21-21ksoftirqd/121:55:191
27947992811,8cyclictest21-21ksoftirqd/122:30:301
2793999289,13cyclictest24717-21ssh00:35:160
2793999285,8cyclictest11301-21date23:15:020
2793999285,6cyclictest5170-21date19:20:010
2793999283,8cyclictest21642-21ssh21:13:460
2793999282,22cyclictest13671-21diskmemload22:40:120
2793999282,21cyclictest6934-21ssh00:25:150
2793999282,20cyclictest26710-21ssh21:35:150
27939992817,8cyclictest12474-21apt-get00:10:120
2796399273,16cyclictest0-21swapper/322:17:383
2796399273,15cyclictest28366irq/58-eth023:00:163
2796399273,15cyclictest0-21swapper/322:02:383
2796399272,14cyclictest28366irq/58-eth000:30:143
2796399271,18cyclictest0-21swapper/322:50:123
2795599275,11cyclictest22346irq/40-dwc2_hso19:25:122
2795599272,19cyclictest22346irq/40-dwc2_hso20:20:142
2795599272,10cyclictest0-21swapper/222:07:382
2795599271,19cyclictest14027-21ls22:40:162
2794799278,15cyclictest21-21ksoftirqd/122:25:111
2794799273,4cyclictest21-21ksoftirqd/120:45:231
27947992721,4cyclictest201rcuc/121:25:261
27947992721,4cyclictest201rcuc/121:25:251
27947992716,3cyclictest21-21ksoftirqd/119:45:291
27947992715,4cyclictest21-21ksoftirqd/123:30:171
27947992715,4cyclictest21-21ksoftirqd/100:35:241
2794799271,19cyclictest22783-21ssh22:45:141
27947992710,5cyclictest21-21ksoftirqd/123:09:291
2793999277,5cyclictest12-21ksoftirqd/021:20:240
27939992719,6cyclictest12-21ksoftirqd/000:30:160
2796399262,15cyclictest28366irq/58-eth019:40:113
2795599269,11cyclictest3601-21sh00:05:152
2795599265,6cyclictest0-21swapper/223:55:132
2795599265,6cyclictest0-21swapper/223:55:122
2795599264,16cyclictest22346irq/40-dwc2_hso20:00:152
2795599264,13cyclictest22346irq/40-dwc2_hso20:45:142
2795599264,13cyclictest22346irq/40-dwc2_hso00:20:162
2795599263,18cyclictest0-21swapper/222:02:382
2795599263,17cyclictest22346irq/40-dwc2_hso20:30:122
2795599262,9cyclictest11422-21ssh22:37:432
2795599262,17cyclictest22643-21ssh22:45:042
27955992618,4cyclictest26990-21ssh00:00:132
2794799268,8cyclictest21-21ksoftirqd/119:40:021
2794799267,10cyclictest21-21ksoftirqd/123:55:301
2794799267,10cyclictest21-21ksoftirqd/123:55:291
2794799266,4cyclictest131rcu_preempt20:40:291
2794799263,8cyclictest131rcu_preempt21:10:261
2794799263,18cyclictest23120-21ssh21:15:151
27947992615,4cyclictest21-21ksoftirqd/100:08:061
27947992612,4cyclictest21-21ksoftirqd/100:20:181
2794799261,18cyclictest7914-21ssh22:17:391
27947992610,7cyclictest0-21swapper/121:24:551
2793999267,6cyclictest12-21ksoftirqd/022:30:150
2793999263,7cyclictest20733-21ssh21:30:230
2793999263,7cyclictest12-21ksoftirqd/022:55:120
2793999263,6cyclictest12-21ksoftirqd/022:00:150
2793999262,6cyclictest32022-21ssh23:06:390
2793999262,18cyclictest27606-21ssh21:52:320
2793999260,5cyclictest24333-21munin-run22:10:020
2793999260,12cyclictest19582-21latency_hist19:35:020
2796399253,15cyclictest28366irq/58-eth019:20:133
2795599255,11cyclictest32120-21ssh21:20:152
2795599253,13cyclictest22346irq/40-dwc2_hso19:35:122
2795599252,3cyclictest131rcu_preempt22:20:132
2795599252,18cyclictest31361-21ssh22:12:372
2795599252,14cyclictest22346irq/40-dwc2_hso19:45:112
2795599251,13cyclictest13671-21diskmemload22:50:142
2794799259,9cyclictest21-21ksoftirqd/121:33:541
2794799257,8cyclictest21-21ksoftirqd/120:50:111
2794799257,3cyclictest131rcu_preempt21:45:271
2794799257,11cyclictest21-21ksoftirqd/120:10:321
2794799255,6cyclictest21-21ksoftirqd/123:50:221
2794799255,3cyclictest131rcu_preempt22:35:171
2794799254,6cyclictest21-21ksoftirqd/119:40:271
2794799253,7cyclictest21-21ksoftirqd/119:20:151
27947992514,5cyclictest21-21ksoftirqd/123:22:241
27947992514,5cyclictest21-21ksoftirqd/121:38:281
27947992512,4cyclictest21-21ksoftirqd/121:05:171
2793999257,6cyclictest12-21ksoftirqd/020:25:210
2793999256,5cyclictest12-21ksoftirqd/023:48:160
2793999255,7cyclictest562-21kthreadcore20:20:230
2793999254,5cyclictest151rcuc/023:26:120
2793999254,5cyclictest12-21ksoftirqd/023:55:300
2793999254,5cyclictest12-21ksoftirqd/023:55:290
2793999254,5cyclictest12-21ksoftirqd/021:45:300
2793999254,5cyclictest12-21ksoftirqd/000:15:150
2793999254,4cyclictest12-21ksoftirqd/022:45:150
2793999253,7cyclictest3720-21ssh00:05:160
2793999252,9cyclictest14912-21ssh23:51:340
2793999252,6cyclictest12-21ksoftirqd/020:40:310
2793999252,5cyclictest12-21ksoftirqd/023:33:280
2793999252,5cyclictest12-21ksoftirqd/021:40:450
2793999252,5cyclictest12-21ksoftirqd/019:25:260
27939992520,2cyclictest16206-21apt-get20:05:130
27939992519,3cyclictest12661-21apt-get20:35:130
2793999251,6cyclictest12-21ksoftirqd/023:15:160
2793999251,4cyclictest31839-21grep21:55:210
2796399241,14cyclictest0-21swapper/322:25:133
27963992410,9cyclictest28366irq/58-eth021:50:133
2795599242,16cyclictest0-21swapper/221:40:132
2794799249,4cyclictest21-21ksoftirqd/122:40:151
2794799248,8cyclictest21-21ksoftirqd/119:55:251
2794799247,8cyclictest21-21ksoftirqd/100:13:531
2794799246,8cyclictest21-21ksoftirqd/123:18:271
2794799246,7cyclictest21-21ksoftirqd/100:25:231
2794799245,9cyclictest21-21ksoftirqd/119:20:011
2794799244,3cyclictest131rcu_preempt20:00:281
2794799243,3cyclictest131rcu_preempt20:55:271
2794799242,4cyclictest131rcu_preempt20:05:281
27947992411,7cyclictest0-21swapper/123:35:381
2793999244,6cyclictest12-21ksoftirqd/000:20:150
2793999244,4cyclictest12-21ksoftirqd/022:50:260
2793999243,6cyclictest28360-21if_err_eth019:10:160
2793999243,5cyclictest27210-21fschecks_time00:00:170
2793999243,4cyclictest12-21ksoftirqd/020:10:310
2793999243,14cyclictest633-21Async12:11:530
2793999242,7cyclictest9990-21ntp_192.168.11419:55:240
2793999242,4cyclictest12-21ksoftirqd/022:15:100
2793999241,7cyclictest12-21ksoftirqd/023:20:300
2796399235,9cyclictest0-21swapper/300:00:143
2796399234,13cyclictest0-21swapper/322:35:123
27963992319,2cyclictest0-21swapper/320:40:143
2795599239,11cyclictest0-21swapper/223:35:012
2795599232,6cyclictest0-21swapper/222:57:382
2795599232,6cyclictest0-21swapper/222:34:372
2795599232,6cyclictest0-21swapper/200:27:372
2795599232,16cyclictest0-21swapper/223:29:382
2794799237,7cyclictest21-21ksoftirqd/120:20:271
2794799235,5cyclictest21-21ksoftirqd/119:50:151
2794799235,4cyclictest131rcu_preempt22:20:341
2794799235,3cyclictest131rcu_preempt20:35:141
2794799234,4cyclictest21-21ksoftirqd/121:50:141
2794799232,5cyclictest21-21ksoftirqd/100:30:161
27947992312,3cyclictest21-21ksoftirqd/119:25:181
2794799231,18cyclictest3229-21cut20:25:161
2793999235,4cyclictest12-21ksoftirqd/020:00:270
2793999233,6cyclictest4695-21sed21:00:180
2793999233,6cyclictest23998-21kthreadcore20:45:210
2793999233,5cyclictest12-21ksoftirqd/019:40:110
2793999233,4cyclictest1994-21fw_packets19:50:160
2793999231,5cyclictest12-21ksoftirqd/019:45:280
2796399223,13cyclictest0-21swapper/300:13:393
27963992214,5cyclictest0-21swapper/323:20:133
27963992211,7cyclictest0-21swapper/322:40:173
2796399221,13cyclictest28366irq/58-eth000:15:143
2795599228,11cyclictest19714-21kthreadcore23:00:242
2795599226,7cyclictest131rcu_preempt23:45:292
2795599222,16cyclictest28929-21ssh21:35:212
2795599222,10cyclictest361-21latency_hist19:15:012
27955992214,6cyclictest0-21swapper/222:29:252
27955992211,8cyclictest15836-21sh21:45:262
2795599221,11cyclictest31829-21latency_hist21:20:012
27955992210,9cyclictest0-21swapper/220:10:192
2794799223,4cyclictest21-21ksoftirqd/120:30:221
2793999223,8cyclictest12-21ksoftirqd/019:35:290
2793999223,5cyclictest12-21ksoftirqd/020:50:120
2793999222,5cyclictest9445-21usage_Anybus19:20:300
27939992214,4cyclictest25813-21apt-get20:15:130
2796399219,9cyclictest0-21swapper/300:25:323
2796399216,7cyclictest28366irq/58-eth022:10:123
2796399214,13cyclictest0-21swapper/319:55:133
2796399213,12cyclictest0-21swapper/323:10:123
27963992111,7cyclictest28366irq/58-eth023:05:143
27963992111,5cyclictest28366irq/58-eth023:45:133
2795599219,10cyclictest16864-21sshd21:29:392
2795599219,10cyclictest16864-21sshd21:29:382
2795599212,16cyclictest6142-21kthreadcore20:25:222
2795599212,15cyclictest22346irq/40-dwc2_hso21:00:142
2795599211,9cyclictest17998-21kthreadcore19:30:212
2795599211,10cyclictest561-21fschecks_count19:15:162
27955992110,9cyclictest28129-21ssh00:17:432
27955992110,7cyclictest17305-21kthreadcore23:35:232
2794799213,7cyclictest21-21ksoftirqd/121:00:181
2794799213,4cyclictest21-21ksoftirqd/119:10:141
2793999216,3cyclictest0-21swapper/020:30:170
2793999211,10cyclictest0-21swapper/021:05:130
2796399209,8cyclictest0-21swapper/321:49:353
2795599201,8cyclictest14048-21/usr/sbin/munin21:10:292
2795599201,6cyclictest0-21swapper/220:05:142
2795599201,15cyclictest17870-21irqcore20:40:202
2795599201,10cyclictest30970-21grep20:50:272
2795599201,10cyclictest24667-21cpu19:40:142
2796399198,8cyclictest0-21swapper/300:20:263
2796399198,7cyclictest0-21swapper/322:45:133
2796399193,11cyclictest0-21swapper/323:29:373
2796399193,11cyclictest0-21swapper/300:37:393
2796399192,6cyclictest0-21swapper/323:44:393
2796399192,11cyclictest0-21swapper/320:00:143
27963991911,5cyclictest0-21swapper/322:05:213
2796399191,13cyclictest0-21swapper/320:30:013
2796399191,12cyclictest28366irq/58-eth000:05:163
2796399191,11cyclictest0-21swapper/319:15:153
27963991910,7cyclictest0-21swapper/321:26:283
27963991910,7cyclictest0-21swapper/321:26:273
27963991910,6cyclictest0-21swapper/323:33:053
2795599191,9cyclictest25820-21cpu20:15:142
2796399182,10cyclictest0-21swapper/321:30:053
2796399182,10cyclictest0-21swapper/321:00:143
2796399182,10cyclictest0-21swapper/320:35:153
2796399182,10cyclictest0-21swapper/320:10:163
27963991811,4cyclictest0-21swapper/321:15:153
2796399181,12cyclictest0-21swapper/320:15:293
2796399181,12cyclictest0-21swapper/319:50:273
27963991810,5cyclictest28366irq/58-eth021:35:313
2795599181,8cyclictest27975-21latency_hist19:10:012
2796399175,6cyclictest0-21swapper/321:05:133
2796399172,10cyclictest0-21swapper/319:10:133
2796399171,8cyclictest0-21swapper/320:30:133
2796399171,13cyclictest0-21swapper/321:00:023
2796399168,6cyclictest0-21swapper/320:05:383
2796399162,10cyclictest0-21swapper/320:20:163
2796399162,10cyclictest0-21swapper/319:30:133
2796399152,11cyclictest0-21swapper/320:45:153
2796399149,3cyclictest0-21swapper/319:35:153
2796399147,3cyclictest28466irq/59-eth019:45:233
2794799141,11cyclictest28055-21grep19:10:031
2796399138,3cyclictest0-21swapper/320:50:223
2793999131,9cyclictest27866-21latency_hist19:10:010
2796399111,7cyclictest0-21swapper/319:10:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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