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
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 100 highest latencies:

System rack7slot4s.osadl.org (updated Sat Jul 19, 2025 00:45:16)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
10549	99	64	4,46	cyclictest	24031	-21	ssh	23:15:14	1
10540	99	58	3,44	cyclictest	31289	-21	ssh	00:35:15	0
10540	99	58	33,21	cyclictest	328	-21	ssh	22:25:11	0
10540	99	54	4,38	cyclictest	9288	-21	ssh	23:25:13	0
10540	99	54	4,38	cyclictest	9288	-21	ssh	23:25:13	0
10540	99	51	1,38	cyclictest	32231	-21	ssh	21:30:13	0
10540	99	50	3,35	cyclictest	23392	-21	ssh	21:25:12	0
10540	99	49	33,10	cyclictest	29835	-21	apt-get	23:55:14	0
10540	99	48	17,20	cyclictest	0	-21	swapper/0	19:40:16	0
10560	99	47	4,35	cyclictest	233	46	irq/40-dwc2_hso	23:05:14	2
10540	99	47	2,33	cyclictest	6402	-21	ssh	23:05:14	0
10568	99	45	32,11	cyclictest	0	-21	swapper/3	23:10:11	3
10540	99	45	34,7	cyclictest	24023	-21	apt-get	23:15:15	0
10540	99	44	30,9	cyclictest	21037	-21	apt-get	23:50:17	0
10540	99	43	1,34	cyclictest	419	-21	rm	23:20:13	0
10540	99	42	35,3	cyclictest	21670	-21	apt-get	19:55:13	0
10560	99	41	12,17	cyclictest	27	-21	ksoftirqd/2	20:10:12	2
10540	99	41	16,8	cyclictest	20025	-21	ssh	22:15:48	0
10540	99	40	12,11	cyclictest	13076	-21	ssh	00:23:05	0
10568	99	39	8,20	cyclictest	0	-21	swapper/3	00:10:16	3
10560	99	39	2,21	cyclictest	32078	-21	ssh	23:35:54	2
10540	99	39	13,10	cyclictest	6452	-21	diskstats	00:00:16	0
10540	99	39	12,20	cyclictest	0	-21	swapper/0	23:40:14	0
10540	99	38	31,3	cyclictest	14449	-21	apt-get	20:55:14	0
10540	99	38	30,4	cyclictest	30041	-21	apt-get	19:30:14	0
10540	99	38	30,4	cyclictest	30041	-21	apt-get	19:30:14	0
10540	99	38	16,8	cyclictest	17803	-21	users	20:20:31	0
10540	99	38	16,8	cyclictest	17803	-21	users	20:20:31	0
10540	99	38	13,10	cyclictest	32539	-21	ssh	22:41:26	0
10540	99	38	13,10	cyclictest	14438	-21	ssh	21:36:42	0
10540	99	38	12,8	cyclictest	3889	-21	ssh	00:16:31	0
10540	99	37	15,11	cyclictest	27587	-21	ntp_192.168.114	21:05:24	0
10540	99	37	13,10	cyclictest	3009	-21	ssh	21:12:18	0
10540	99	37	13,10	cyclictest	17944	-21	ssh	22:35:04	0
10540	99	37	12,10	cyclictest	16300	-21	sh	22:33:17	0
10540	99	37	12,10	cyclictest	16300	-21	sh	22:33:17	0
10568	99	36	3,17	cyclictest	324	66	irq/58-eth0	23:00:12	3
10540	99	36	29,4	cyclictest	3669	-21	apt-get	20:10:12	0
10540	99	36	15,7	cyclictest	28748	-21	diskmemload	00:31:33	0
10540	99	36	14,9	cyclictest	28495	-21	ssh	22:58:41	0
10540	99	36	14,9	cyclictest	28495	-21	ssh	22:58:41	0
10540	99	36	14,13	cyclictest	22468	-21	rm	21:40:41	0
10540	99	36	13,5	cyclictest	12216	-21	apt-get	22:50:13	0
10540	99	36	13,10	cyclictest	20895	-21	ssh	00:07:52	0
10540	99	36	12,8	cyclictest	1659	-21	ssh	21:49:00	0
10540	99	36	10,9	cyclictest	17480	-21	ssh	21:56:28	0
10568	99	35	3,20	cyclictest	324	66	irq/58-eth0	21:10:14	3
10560	99	35	2,28	cyclictest	25667	-21	ssh	23:33:54	2
10560	99	35	2,23	cyclictest	29981	-21	ssh	23:00:13	2
10540	99	35	30,3	cyclictest	22876	-21	apt-get	20:30:14	0
10540	99	35	19,11	cyclictest	3416	-21	apt-get	22:45:15	0
10540	99	35	15,9	cyclictest	25775	-21	sh	23:34:03	0
10540	99	35	14,7	cyclictest	20368	-21	ssh	23:10:57	0
10540	99	35	12,7	cyclictest	0	-21	swapper/0	22:10:54	0
10540	99	35	12,20	cyclictest	27831	-21	grep	20:35:20	0
10540	99	35	12,10	cyclictest	10744	-21	ssh	21:54:13	0
10540	99	35	11,9	cyclictest	28748	-21	diskmemload	22:21:58	0
10540	99	35	11,10	cyclictest	19697	-21	ssh	21:20:52	0
10540	99	35	10,10	cyclictest	13834	-21	ssh	21:19:39	0
10568	99	34	8,15	cyclictest	324	66	irq/58-eth0	00:25:14	3
10568	99	34	2,27	cyclictest	324	66	irq/58-eth0	21:15:13	3
10560	99	34	1,17	cyclictest	14571	-21	ssh	21:20:15	2
10540	99	34	25,7	cyclictest	22792	-21	apt-get	00:10:16	0
10540	99	34	21,10	cyclictest	29971	-21	apt-get	23:00:12	0
10540	99	34	13,8	cyclictest	28748	-21	diskmemload	00:27:05	0
10540	99	34	13,7	cyclictest	18965	-21	sed	19:15:25	0
10540	99	34	12,9	cyclictest	17238	-21	sh	23:45:48	0
10568	99	33	14,13	cyclictest	0	-21	swapper/3	23:20:14	3
10560	99	33	2,25	cyclictest	0	-21	swapper/2	22:39:54	2
10560	99	33	2,17	cyclictest	9340	-21	ssh	22:30:17	2
10560	99	33	2,17	cyclictest	9340	-21	ssh	22:30:17	2
10560	99	33	1,28	cyclictest	6194	-21	rm	00:00:05	2
10540	99	33	17,12	cyclictest	866	-21	ntp_states	22:05:25	0
10540	99	33	13,7	cyclictest	28748	-21	diskmemload	22:02:15	0
10540	99	33	13,7	cyclictest	28748	-21	diskmemload	22:02:15	0
10540	99	33	10,9	cyclictest	14654	-21	usage_Anybus	19:10:30	0
10568	99	32	22,7	cyclictest	324	66	irq/58-eth0	22:40:16	3
10568	99	32	2,20	cyclictest	324	66	irq/58-eth0	23:55:14	3
10560	99	32	2,21	cyclictest	27	-21	ksoftirqd/2	19:30:13	2
10560	99	32	2,21	cyclictest	27	-21	ksoftirqd/2	19:30:13	2
10540	99	32	8,8	cyclictest	23836	-21	ntp_states	19:20:29	0
10540	99	32	8,8	cyclictest	23836	-21	ntp_states	19:20:29	0
10540	99	32	14,3	cyclictest	28748	-21	diskmemload	23:37:19	0
10540	99	32	11,9	cyclictest	12169	-21	df_inode	19:45:14	0
10540	99	32	10,8	cyclictest	3234	-21	cut	19:35:21	0
10568	99	31	5,19	cyclictest	324	66	irq/58-eth0	21:20:15	3
10560	99	31	3,19	cyclictest	233	46	irq/40-dwc2_hso	22:50:13	2
10549	99	31	15,13	cyclictest	21	-21	ksoftirqd/1	22:05:14	1
10540	99	31	1,22	cyclictest	0	-21	swapper/0	20:05:16	0
10540	99	31	10,9	cyclictest	5937	-21	kthreadcore	20:45:20	0
10540	99	31	10,9	cyclictest	5937	-21	kthreadcore	20:45:20	0
10560	99	30	3,20	cyclictest	233	46	irq/40-dwc2_hso	00:10:16	2
10560	99	30	2,21	cyclictest	0	-21	swapper/2	20:30:15	2
10549	99	30	2,23	cyclictest	14577	-21	ssh	21:20:16	1
10549	99	30	13,11	cyclictest	10536	-21	cyclictest	19:55:12	1
10540	99	30	18,9	cyclictest	21384	-21	memory	20:25:25	0
10560	99	29	2,20	cyclictest	0	-21	swapper/2	20:20:14	2
10560	99	29	2,20	cyclictest	0	-21	swapper/2	20:20:14	2
10560	99	29	2,18	cyclictest	233	46	irq/40-dwc2_hso	22:15:14	2
10549	99	29	4,15	cyclictest	32215	-21	ssh	21:30:12	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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