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2026-05-28 - 22:36

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #a, slot #5

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.

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 highest latencies:
System rackaslot5s.osadl.org (updated Thu May 28, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811110,0rcu_preempt27877-21ssh11:33:101
811090,0rcu_preempt19-21ksoftirqd/108:05:001
811070,0rcu_preempt3-21ksoftirqd/012:32:550
811070,0rcu_preempt19-21ksoftirqd/109:16:491
811060,0rcu_preempt3-21ksoftirqd/011:05:300
81970,0rcu_preempt3-21ksoftirqd/011:53:220
81810,0rcu_preempt19-21ksoftirqd/110:33:271
81780,0rcu_preempt16647-1kworker/1:1H11:54:481
81780,0rcu_preempt15855-21rm10:47:581
81780,0rcu_preempt15855-21rm10:47:581
81760,0rcu_preempt19-21ksoftirqd/112:05:261
81750,0rcu_preempt12674-21kworker/1:012:32:271
81740,0rcu_preempt19-21ksoftirqd/110:19:441
81720,0rcu_preempt19-21ksoftirqd/110:56:291
81720,0rcu_preempt19-21ksoftirqd/110:24:371
81710,0rcu_preempt19-21ksoftirqd/110:44:501
81700,0rcu_preempt54-21kswapd009:20:021
81690,0rcu_preempt19-21ksoftirqd/110:39:001
81680,0rcu_preempt19-21ksoftirqd/111:58:531
81670,0rcu_preempt19-21ksoftirqd/110:59:371
81670,0rcu_preempt0-21swapper/112:24:481
81670,0rcu_preempt0-21swapper/110:28:411
795399672,0cyclictest10692-21chrt09:36:090
81660,0rcu_preempt19-21ksoftirqd/111:18:041
81660,0rcu_preempt19-21ksoftirqd/111:04:331
81660,0rcu_preempt19-21ksoftirqd/109:41:011
795399662,0cyclictest1926-21apt-get12:12:590
795399662,0cyclictest12687-21ssh12:23:140
795399653,0cyclictest0-21swapper/010:13:090
795399651,0cyclictest11235-21ping07:18:020
81640,0rcu_preempt9812-1kworker/1:2H09:35:541
81640,0rcu_preempt19-21ksoftirqd/111:12:071
81640,0rcu_preempt19-21ksoftirqd/110:11:201
81640,0rcu_preempt19-21ksoftirqd/110:11:201
795399642,0cyclictest0-21swapper/010:11:150
795399642,0cyclictest0-21swapper/010:11:150
795399641,0cyclictest30337-21ssh10:28:520
81630,0rcu_preempt3-21ksoftirqd/010:57:590
795399632,0cyclictest0-21swapper/009:25:380
795399631,0cyclictest26986-21grep11:32:490
81620,0rcu_preempt19-21ksoftirqd/111:50:191
81620,0rcu_preempt0-21swapper/109:31:491
795399623,0cyclictest0-21swapper/010:42:180
795399623,0cyclictest0-21swapper/010:33:110
795399622,0cyclictest8353-21munin-node0
795399622,0cyclictest32041-21df09:58:030
795399622,0cyclictest18822-21ls07:38:240
795399622,0cyclictest1201-21ssh11:38:350
795399621,0cyclictest22011-1kworker/0:0H10:20:470
795399621,0cyclictest16645-1kworker/0:1H10:26:450
81610,0rcu_preempt19-21ksoftirqd/107:48:031
81610,0rcu_preempt19-21ksoftirqd/107:48:031
795399618,0cyclictest0-21swapper/007:23:220
7953996127,0cyclictest23120-21munin-node0
795399612,0cyclictest16952-1kworker/0:3H09:11:450
7953996120,0cyclictest17971-21munin-node0
81600,0rcu_preempt19-21ksoftirqd/112:13:141
795399604,0cyclictest0-21swapper/011:51:100
795399603,0cyclictest0-21swapper/011:20:390
795399602,0cyclictest18197-21ssh12:28:280
81590,0rcu_preempt19-21ksoftirqd/108:19:251
795399598,0cyclictest0-21swapper/012:04:360
795399592,0cyclictest4909-1kworker/0:1H09:31:300
795399592,0cyclictest4456-21seq10:03:000
795399592,0cyclictest16058-21dropbear10:48:010
795399592,0cyclictest16058-21dropbear10:48:010
795399591,0cyclictest22676-1kworker/0:0H09:16:500
81580,0rcu_preempt19-21ksoftirqd/109:23:521
795399587,0cyclictest24238-1kworker/0:2H11:34:030
795399582,0cyclictest21818-21cat10:53:160
795399582,0cyclictest0-21swapper/012:09:500
795399582,0cyclictest0-21swapper/009:19:440
795399581,0cyclictest6717-1kworker/0:0H11:44:490
795399581,0cyclictest19907-21ssh09:45:220
81570,0rcu_preempt19-21ksoftirqd/112:18:411
81570,0rcu_preempt19-21ksoftirqd/110:01:241
795399572,0cyclictest79732chrt08:43:350
795399572,0cyclictest0-21swapper/009:38:140
795399567,0cyclictest13599-1kworker/0:1H10:45:560
795399564,0cyclictest14668-21apt-get07:28:000
795399563,0cyclictest0-21swapper/012:18:110
795399562,0cyclictest27028-21ssh09:53:010
795399562,0cyclictest0-21swapper/011:58:090
795399562,0cyclictest0-21swapper/011:10:050
795399561,0cyclictest11235-21ping07:43:000
81550,0rcu_preempt19-21ksoftirqd/109:48:001
81550,0rcu_preempt19-21ksoftirqd/107:58:001
795399552,0cyclictest0-21swapper/008:03:200
795399551,0cyclictest32721-21munin-node0
81540,0rcu_preempt24044-21kworker/0:208:48:110
81540,0rcu_preempt19-21ksoftirqd/111:13:211
81540,0rcu_preempt12674-21kworker/1:008:33:011
795399546,0cyclictest17138-21sed07:33:190
81530,0rcu_preempt30798-21kworker/0:108:21:130
795399532,0cyclictest0-21swapper/008:12:590
795399531,0cyclictest10189-21aten_rapower_cu08:52:590
81520,0rcu_preempt3-21ksoftirqd/007:58:100
795399526,0cyclictest27638-1kworker/0:0H08:08:060
795399522,0cyclictest24132-21seq07:55:360
795399521,0cyclictest13936-21if_eth309:03:070
81510,0rcu_preempt19-21ksoftirqd/110:03:151
81510,0rcu_preempt19-21ksoftirqd/108:58:131
795399512,0cyclictest10465-21processes07:13:130
795399511,0cyclictest5248-21apt-get08:37:590
795399511,0cyclictest4788-21sshd08:34:500
795399511,0cyclictest2121-21df08:28:010
81500,0rcu_preempt19-21ksoftirqd/109:45:431
81500,0rcu_preempt19-21ksoftirqd/108:13:021
81500,0rcu_preempt19-21ksoftirqd/107:24:111
7953995014,0cyclictest11822-21munin-node0
81490,0rcu_preempt19-21ksoftirqd/112:32:491
81490,0rcu_preempt19-21ksoftirqd/108:22:591
81490,0rcu_preempt19-21ksoftirqd/108:08:061
795399492,0cyclictest0-21swapper/007:08:050
81480,0rcu_preempt19-21ksoftirqd/112:12:371
81480,0rcu_preempt19-21ksoftirqd/111:23:031
81480,0rcu_preempt19-21ksoftirqd/110:17:491
81480,0rcu_preempt12674-21kworker/1:011:38:171
795399481,0cyclictest22391-21runrttasks07:49:290
795399481,0cyclictest22391-21runrttasks07:49:290
81470,0rcu_preempt19-21ksoftirqd/109:08:161
81470,0rcu_preempt19-21ksoftirqd/108:28:051
81470,0rcu_preempt19-21ksoftirqd/107:57:491
81460,0rcu_preempt19-21ksoftirqd/111:32:161
81460,0rcu_preempt19-21ksoftirqd/109:52:591
81460,0rcu_preempt19-21ksoftirqd/107:39:001
81450,0rcu_preempt19-21ksoftirqd/111:43:071
81450,0rcu_preempt19-21ksoftirqd/108:52:581
81450,0rcu_preempt19-21ksoftirqd/107:43:301
81450,0rcu_preempt19-21ksoftirqd/107:27:571
81450,0rcu_preempt19-21ksoftirqd/107:20:021
81440,0rcu_preempt19-21ksoftirqd/107:36:421
81440,0rcu_preempt19-21ksoftirqd/107:12:491
81440,0rcu_preempt10451-21ps07:13:131
81430,0rcu_preempt19-21ksoftirqd/108:43:091
795399432,0cyclictest0-21swapper/007:07:480
81400,0rcu_preempt19-21ksoftirqd/108:38:001
81390,0rcu_preempt19-21ksoftirqd/107:03:071
81360,0rcu_preempt19-21ksoftirqd/109:03:041
81350,0rcu_preempt19-21ksoftirqd/108:48:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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