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2025-12-05 - 18:54

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #9, 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.

Total number of samples: 50 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 100 highest latencies:
System rack9slot8s.osadl.org (updated Fri Dec 05, 2025 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
819501210,0irq/47-4a100000723-21sshd07:05:190
1340999732,0cyclictest0-21swapper11:40:490
1340999532,0cyclictest0-21swapper10:02:240
1340999532,0cyclictest0-21swapper09:31:500
1340999431,0cyclictest0-21swapper12:22:240
1340999332,0cyclictest0-21swapper11:12:340
1340999029,0cyclictest0-21swapper10:42:180
81850830,0irq/46-4a10000026877-21runrttasks09:24:540
81850800,0irq/46-4a10000022034-21ssh09:14:430
81850780,0irq/46-4a1000009591-21sort12:15:040
81850770,0irq/46-4a10000018865-21ssh12:34:500
81850750,0irq/46-4a1000009338-21kworker/u2:309:58:360
81850720,0irq/46-4a10000031037-21ssh11:51:520
81850720,0irq/46-4a10000016136-21kworker/u2:510:21:370
81850700,0irq/46-4a1000004748-21ssh12:05:050
81850700,0irq/46-4a10000015201-21runrttasks07:25:170
81850690,0irq/46-4a100000498-21kworker/u2:110:52:050
81850690,0irq/46-4a1000002189-21kworker/u2:810:06:110
81850690,0irq/46-4a10000018990-21ssh11:26:090
81850690,0irq/46-4a10000010501-21runrttasks11:08:120
81850680,0irq/46-4a10000018964-21ssh10:17:040
81850670,0irq/46-4a1000002189-21kworker/u2:809:48:530
81850660,0irq/46-4a1000008076-21kworker/u2:612:13:100
81850660,0irq/46-4a10000028431-21kworker/u2:012:25:090
81850660,0irq/46-4a10000027898-21kworker/u2:009:27:040
81850660,0irq/46-4a1000002189-21kworker/u2:810:47:380
81850660,0irq/46-4a10000020961-21kworker/u2:410:39:230
81850660,0irq/46-4a10000019297-21kworker/u2:311:30:370
81850660,0irq/46-4a10000014951-21ssh11:17:390
81850650,0irq/46-4a1000009664-21kworker/u2:011:22:220
81850650,0irq/46-4a10000030568-21kworker/u2:611:04:030
81850650,0irq/46-4a10000029828-21kworker/u2:109:35:260
81850650,0irq/46-4a1000001758-21ssh09:40:210
81850650,0irq/46-4a10000014189-21kworker/u2:010:29:180
81850640,0irq/46-4a10000028430-1kworker/u3:311:46:390
81850640,0irq/46-4a10000019312-21kworker/u2:009:19:070
81850640,0irq/46-4a10000010797-21kworker/u2:410:10:480
81850630,0irq/46-4a1000005245-1kworker/u3:312:07:480
81850630,0irq/46-4a10000024589-21ssh11:38:120
1340996149,0cyclictest81850irq/46-4a10000008:02:200
1340996049,0cyclictest81850irq/46-4a10000009:51:110
101600,0ktimersoftd/00-21swapper07:30:230
81850590,0irq/46-4a1000000-21swapper12:39:460
81850590,0irq/46-4a1000000-21swapper11:56:180
1340995947,0cyclictest81850irq/46-4a10000007:14:560
81850560,0irq/46-4a1000000-21swapper10:55:350
1340995545,0cyclictest81850irq/46-4a10000010:32:570
1340995443,0cyclictest81850irq/46-4a10000008:18:220
101540,0ktimersoftd/00-21swapper08:37:560
1340995336,0cyclictest1974-21sshd07:14:150
101530,0ktimersoftd/00-21swapper08:27:430
1340995242,0cyclictest81850irq/46-4a10000008:45:220
1340995237,0cyclictest7236-21latency_hist07:44:530
1340995223,0cyclictest3470-21runrttasks07:20:450
1340995141,0cyclictest101ktimersoftd/009:09:580
1340995134,0cyclictest17587-21latency_hist08:54:550
1340995133,0cyclictest15977-21sshd08:44:220
1340995039,0cyclictest81850irq/46-4a10000008:56:220
1340994939,0cyclictest101ktimersoftd/008:09:390
1340994932,0cyclictest12932-21runrttasks08:23:500
1340994831,0cyclictest15180-21lldpd07:35:310
1340994831,0cyclictest1338-21cyclictest07:54:550
1340994817,0cyclictest1-21systemd07:41:210
1340994636,0cyclictest81850irq/46-4a10000008:32:200
1340994630,0cyclictest15201-21runrttasks07:50:090
1340994630,0cyclictest1338-21cyclictest08:10:190
1340994536,0cyclictest101ktimersoftd/009:03:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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