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2025-11-10 - 02:59

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 all highest latencies:
System rack9slot8s.osadl.org (updated Mon Nov 10, 2025 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
819503330,0irq/47-4a1000009-21ksoftirqd/019:05:100
119259911930,0cyclictest19935-21ssh00:12:270
119259911826,0cyclictest3615-21ssh21:20:550
119259911730,0cyclictest15184-21lldpd00:30:120
119259911631,0cyclictest30723-21diskmemload00:04:390
119259911611,0cyclictest16637-21ssh00:05:220
119259911532,0cyclictest525-21sendmail-msp00:40:030
119259911526,0cyclictest30000-21ssh23:25:030
119259911525,0cyclictest360-21ssh22:22:400
119259911510,0cyclictest27761-21munin-run20:49:540
119259911428,0cyclictest25092-21ssh23:14:560
119259911410,0cyclictest25493-21ssh22:07:070
119259911329,0cyclictest29989-21munin-run21:04:540
119259911313,0cyclictest20217-21ssh21:55:470
119259911229,0cyclictest18934-21ssh21:53:200
119259911227,0cyclictest22914-21sendmail20:19:520
119259911221,0cyclictest27312-21ssh22:10:590
119259911128,0cyclictest18599-21runrttasks23:00:580
119259911126,0cyclictest25604-21dpkg20:35:020
119259911110,0cyclictest15300-21ssh22:54:110
119259911029,0cyclictest21958-21sshd20:13:210
119259911027,0cyclictest16131-21ssh21:47:220
119259911027,0cyclictest14430-21sshd19:22:190
119259911027,0cyclictest14145-21ssh21:43:130
119259911026,0cyclictest5577-21ssh23:42:030
119259911026,0cyclictest3076-21ssh23:36:480
119259911026,0cyclictest11425-21ssh22:45:500
119259911025,0cyclictest428-21ssh23:31:120
119259911024,0cyclictest14947-21kworker/u2:700:25:010
119259911024,0cyclictest12661-21service19:14:520
119259911010,0cyclictest29847-21ssh23:24:570
119259911010,0cyclictest11530-21ssh21:37:430
119259910928,0cyclictest28273-21apt-config00:30:060
119259910927,0cyclictest81950irq/47-4a10000020:34:540
119259910927,0cyclictest30153-21ssh22:17:070
119259910925,0cyclictest30304-21kworker/u2:021:09:540
119259910911,0cyclictest16272-21ssh22:56:070
119259910911,0cyclictest10225-21ssh22:43:260
119259910910,0cyclictest31548-21ssh21:11:300
119259910827,0cyclictest23869-21munin-run20:24:540
119259910827,0cyclictest18797-21kworker/u2:623:09:590
119259910826,0cyclictest2084-21ssh22:26:040
119259910822,0cyclictest15580-21latency_hist19:29:520
119259910725,0cyclictest81950irq/47-4a10000019:39:500
119259910722,0cyclictest22349-21ssh00:17:330
119259910720,0cyclictest9574-21sshd23:50:290
119259910625,0cyclictest8728-21ssh21:31:450
119259910612,0cyclictest5021-21ssh22:32:220
119259910611,0cyclictest15511-21munin-run19:29:520
119259910610,0cyclictest5583-21ssh21:25:030
119259910610,0cyclictest26060-21ssh23:16:500
119259910610,0cyclictest13636-21ssh23:59:150
119259910528,0cyclictest23717-21sh22:03:230
119259910527,0cyclictest8464-21sh23:48:150
119259910511,0cyclictest27920-21sshd20:50:220
119259910511,0cyclictest12146-21kworker/u2:319:15:040
119259910424,0cyclictest81950irq/47-4a10000020:58:470
119259910424,0cyclictest6513-21sshd22:35:260
119259910424,0cyclictest15201-21runrttasks21:17:260
119259910125,0cyclictest20929-21runrttasks20:05:540
119259910024,0cyclictest81950irq/47-4a10000019:47:200
11925999925,0cyclictest24195-21kworker/u2:220:29:530
11925999915,0cyclictest19948-21munin-run19:59:520
11925999825,0cyclictest26766-21seq20:42:560
11925999819,0cyclictest15044-21kworker/u2:019:41:200
11925999813,0cyclictest20249-21sshd20:01:190
11925999716,0cyclictest81950irq/47-4a10000019:54:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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