OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #2

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
Special All - All RT - Optimization - Ethernet - Thumbnails - Next

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 50 highest latencies:

System rack0slot2s.osadl.org (updated Sat Aug 31, 2024 12:44:11)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2791041	99	444	442,2	cyclictest	2804544	-21	kworker/4:0+i915-unordered	08:39:59	4
2791056	99	443	441,2	cyclictest	15268	-21	gnome-shell	07:18:00	9
2791041	99	443	442,1	cyclictest	2921062	-21	kworker/4:2+i915-unordered	11:55:59	4
2791041	99	442	441,1	cyclictest	2793603	-21	kworker/4:1+i915-unordered	07:27:00	4
2791051	99	439	438,1	cyclictest	2899948	-21	kworker/7:2+i915-unordered	10:42:59	7
2791053	99	436	435,1	cyclictest	1365	-21	snmpd	07:17:11	8
2791041	99	436	434,2	cyclictest	2921062	-21	kworker/4:2+i915-unordered	11:47:58	4
2791043	99	435	435,0	cyclictest	2892207	-21	kworker/5:2+events	10:25:22	5
2791046	99	434	432,2	cyclictest	2860433	-21	kworker/6:2+i915-unordered	10:29:59	6
2791056	99	420	419,1	cyclictest	2886575	-21	kworker/9:0+i915-unordered	10:46:59	9
2791043	99	420	419,1	cyclictest	2908079	-21	kworker/5:2+i915-unordered	12:39:59	5
2791033	99	420	419,1	cyclictest	3384670	-21	kworker/2:1+i915-unordered	07:20:59	2
2791033	99	420	419,1	cyclictest	2876311	-21	kworker/2:2+i915-unordered	10:16:59	2
2791033	99	420	419,1	cyclictest	2876311	-21	kworker/2:2+i915-unordered	10:10:58	2
2791031	99	418	418,0	cyclictest	2816421	-21	kworker/1:2+i915-unordered	08:00:59	1
2791033	99	414	413,1	cyclictest	2876311	-21	kworker/2:2+i915-unordered	11:04:59	2
2791033	99	414	413,1	cyclictest	2876311	-21	kworker/2:2+i915-unordered	11:04:58	2
2791053	99	404	403,1	cyclictest	2881344	-21	kworker/8:1+i915-unordered	10:49:59	8
2791031	99	399	398,1	cyclictest	2958147	-21	kworker/1:2+pm	12:23:32	1
2791031	99	399	398,1	cyclictest	2816421	-21	kworker/1:2+i915-unordered	08:16:59	1
2791043	99	398	398,0	cyclictest	2825899	-21	kworker/5:0+i915-unordered	08:50:58	5
2791033	99	398	397,1	cyclictest	2876311	-21	kworker/2:2+i915-unordered	11:20:59	2
2791043	99	397	397,0	cyclictest	2857462	-21	kworker/5:2+i915-unordered	09:18:59	5
2791031	99	396	395,1	cyclictest	2881592	-21	kworker/1:0+i915-unordered	11:07:58	1
2791043	99	395	395,0	cyclictest	2895844	-21	kworker/5:1+i915-unordered	10:33:58	5
2791056	99	393	392,1	cyclictest	2907819	-21	kworker/9:1+i915-unordered	10:54:58	9
2791036	99	392	390,2	cyclictest	587	50	irq/143-i915	10:25:21	3
2791033	99	392	391,1	cyclictest	3384670	-21	kworker/2:1+i915-unordered	08:33:58	2
2791053	99	391	390,1	cyclictest	2881344	-21	kworker/8:1+i915-unordered	10:41:59	8
2791033	99	391	390,1	cyclictest	2876311	-21	kworker/2:2+i915-unordered	11:16:59	2
2791041	99	390	389,1	cyclictest	2804544	-21	kworker/4:0+i915-unordered	09:09:58	4
2791031	99	390	390,0	cyclictest	2868374	-21	kworker/1:1+i915-unordered	09:42:59	1
2791031	99	389	389,0	cyclictest	2854765	-21	kworker/1:0+i915-unordered	09:34:58	1
2791053	99	388	388,0	cyclictest	2907747	-21	kworker/8:2+i915-unordered	10:53:58	8
2791043	99	388	388,0	cyclictest	2852500	-21	kworker/5:0+i915-unordered	09:14:59	5
2791056	99	386	386,0	cyclictest	2870688	-21	kworker/9:0+i915-unordered	09:46:58	9
2791043	99	386	386,0	cyclictest	2908079	-21	kworker/5:2+i915-unordered	11:56:59	5
2791036	99	383	382,1	cyclictest	587	50	irq/143-i915	11:58:22	3
2791033	99	383	383,0	cyclictest	3384670	-21	kworker/2:1+i915-unordered	08:29:58	2
2791036	99	382	382,0	cyclictest	587	50	irq/143-i915	11:16:58	3
2791036	99	382	382,0	cyclictest	587	50	irq/143-i915	08:01:44	3
2791051	99	381	380,1	cyclictest	2793311	-21	kworker/7:1+pm	07:17:11	7
2791043	99	381	380,1	cyclictest	2846867	-21	kworker/5:1+i915-unordered	08:58:59	5
2791036	99	381	381,0	cyclictest	587	50	irq/143-i915	12:29:20	3
2791036	99	381	381,0	cyclictest	587	50	irq/143-i915	12:02:20	3
2791036	99	381	381,0	cyclictest	587	50	irq/143-i915	11:22:59	3
2791036	99	381	381,0	cyclictest	587	50	irq/143-i915	10:47:20	3
2791036	99	381	381,0	cyclictest	587	50	irq/143-i915	09:45:20	3
2791036	99	381	381,0	cyclictest	587	50	irq/143-i915	09:10:22	3
2791036	99	381	381,0	cyclictest	587	50	irq/143-i915	09:08:42	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2019-05-28 - 00:17