OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

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 Thu Aug 27, 2026 00:45:11)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
30821	99	70	2,61	cyclictest	359	66	irq/58-eth0	21:30:13	3
30809	99	57	1,4	cyclictest	0	-21	swapper/2	20:55:13	2
30809	99	56	1,5	cyclictest	0	-21	swapper/2	19:55:14	2
30809	99	55	1,5	cyclictest	0	-21	swapper/2	19:25:14	2
30809	99	55	1,5	cyclictest	0	-21	swapper/2	19:25:13	2
30809	99	55	1,45	cyclictest	0	-21	swapper/2	23:15:13	2
30809	99	55	1,3	cyclictest	0	-21	swapper/2	00:30:09	2
30809	99	55	1,3	cyclictest	0	-21	swapper/2	00:30:09	2
30809	99	54	1,47	cyclictest	0	-21	swapper/2	21:10:12	2
30809	99	52	2,2	cyclictest	27977	-21	apt-get	22:10:14	2
30809	99	52	2,2	cyclictest	27977	-21	apt-get	22:10:14	2
30809	99	52	1,37	cyclictest	0	-21	swapper/2	00:25:13	2
30809	99	52	1,2	cyclictest	10996	-21	ssh	23:30:14	2
30809	99	51	1,2	cyclictest	0	-21	swapper/2	20:05:14	2
30801	99	51	2,38	cyclictest	22867	-21	ssh	22:25:11	1
30809	99	50	3,44	cyclictest	273	46	irq/40-dwc2_hso	20:50:13	2
30809	99	49	1,2	cyclictest	0	-21	swapper/2	21:50:14	2
30809	99	49	1,2	cyclictest	0	-21	swapper/2	20:25:12	2
30809	99	48	1,2	cyclictest	0	-21	swapper/2	19:50:14	2
30801	99	48	1,7	cyclictest	21	-21	ksoftirqd/1	00:25:13	1
30801	99	48	1,39	cyclictest	26613	-21	ssh	22:45:10	1
30801	99	48	1,39	cyclictest	26613	-21	ssh	22:45:09	1
30809	99	47	1,2	cyclictest	0	-21	swapper/2	23:50:13	2
30801	99	47	3,7	cyclictest	13	1	rcu_preempt	22:15:12	1
30809	99	46	1,7	cyclictest	0	-21	swapper/2	19:30:14	2
30801	99	46	10,4	cyclictest	13	1	rcu_preempt	21:50:12	1
30821	99	45	33,9	cyclictest	359	66	irq/58-eth0	23:25:12	3
30821	99	45	2,29	cyclictest	359	66	irq/58-eth0	23:45:13	3
30809	99	45	2,2	cyclictest	20218	-21	apt-get	20:40:12	2
30809	99	45	1,38	cyclictest	0	-21	swapper/2	00:35:12	2
30809	99	45	1,2	cyclictest	0	-21	swapper/2	21:30:13	2
30809	99	45	0,3	cyclictest	25294	-21	apt-get	23:20:12	2
30801	99	45	1,32	cyclictest	29450	-21	ssh	21:35:11	1
30793	99	44	1,36	cyclictest	9887	-21	ssh	22:00:12	0
30793	99	44	1,36	cyclictest	9887	-21	ssh	22:00:11	0
30809	99	43	3,34	cyclictest	0	-21	swapper/2	19:35:12	2
30809	99	43	3,2	cyclictest	0	-21	swapper/2	23:40:13	2
30809	99	43	1,3	cyclictest	17587	-21	ntp_states	20:00:24	2
30809	99	43	1,3	cyclictest	0	-21	swapper/2	19:15:12	2
30801	99	43	6,8	cyclictest	21	-21	ksoftirqd/1	00:35:12	1
30809	99	42	2,2	cyclictest	3367	-21	apt-get	22:50:14	2
30809	99	42	1,36	cyclictest	0	-21	swapper/2	22:55:12	2
30793	99	42	2,32	cyclictest	7219	-21	sh	23:10:12	0
30821	99	41	1,23	cyclictest	359	66	irq/58-eth0	00:10:12	3
30809	99	41	2,6	cyclictest	0	-21	swapper/2	20:45:13	2
30809	99	41	1,36	cyclictest	0	-21	swapper/2	21:35:11	2
30809	99	41	1,2	cyclictest	0	-21	swapper/2	21:25:14	2
30809	99	41	0,5	cyclictest	15948	-21	cat	21:05:30	2
30801	99	41	5,10	cyclictest	21	-21	ksoftirqd/1	22:40:11	1
30801	99	41	4,33	cyclictest	16724	-21	ssh	21:10:10	1
30801	99	41	1,35	cyclictest	11396	-21	ssh	21:25:14	1
30801	99	41	1,31	cyclictest	15192	-21	ssh	21:45:12	1
30801	99	40	1,29	cyclictest	20050	-21	ssh	23:35:13	1
30821	99	39	6,20	cyclictest	359	66	irq/58-eth0	21:25:13	3
30821	99	39	3,24	cyclictest	359	66	irq/58-eth0	22:25:14	3
30821	99	39	3,22	cyclictest	359	66	irq/58-eth0	23:10:13	3
30821	99	39	3,22	cyclictest	359	66	irq/58-eth0	22:45:10	3
30821	99	39	3,22	cyclictest	359	66	irq/58-eth0	22:45:10	3
30821	99	39	20,13	cyclictest	359	66	irq/58-eth0	22:05:13	3
30809	99	39	4,32	cyclictest	28677	-21	kthreadcore	21:15:22	2
30809	99	39	2,32	cyclictest	0	-21	swapper/2	22:35:13	2
30809	99	39	1,5	cyclictest	2134	-21	ssh	23:25:16	2
30809	99	39	1,3	cyclictest	7198	-21	apt-get	23:10:11	2
30809	99	38	2,27	cyclictest	22880	-21	ssh	22:25:12	2
30809	99	38	1,7	cyclictest	17904	-21	timerwakeupswit	22:20:31	2
30809	99	38	1,3	cyclictest	13271	-21	ntp_states	00:05:30	2
30809	99	37	2,26	cyclictest	26633	-21	ssh	22:45:11	2
30809	99	37	2,26	cyclictest	26633	-21	ssh	22:45:11	2
30809	99	37	1,9	cyclictest	930	-21	snmpd	00:13:31	2
30809	99	37	1,32	cyclictest	0	-21	swapper/2	00:00:13	2
30809	99	37	1,26	cyclictest	23717	-21	ssh	23:35:25	2
30809	99	37	0,3	cyclictest	32131	-21	apt-get	19:45:13	2
30801	99	37	3,27	cyclictest	9552	-21	ssh	00:05:16	1
30809	99	36	1,6	cyclictest	14810	-21	sh	21:45:01	2
30809	99	36	1,4	cyclictest	0	-21	swapper/2	21:20:14	2
30809	99	36	1,3	cyclictest	0	-21	swapper/2	20:10:13	2
30801	99	36	3,27	cyclictest	18533	-21	ssh	00:10:12	1
30801	99	36	1,3	cyclictest	13	1	rcu_preempt	19:35:12	1
30821	99	35	4,19	cyclictest	359	66	irq/58-eth0	21:40:13	3
30821	99	35	2,22	cyclictest	359	66	irq/58-eth0	22:35:13	3
30809	99	35	1,7	cyclictest	4647	-21	grep	21:55:28	2
30809	99	35	1,7	cyclictest	1920	-21	ntp_192.168.114	19:10:22	2
30809	99	35	1,30	cyclictest	22802	-21	mailstats	22:05:27	2
30809	99	34	3,9	cyclictest	0	-21	swapper/2	22:01:01	2
30809	99	34	3,9	cyclictest	0	-21	swapper/2	22:01:01	2
30809	99	34	3,28	cyclictest	1166	-21	cut	20:20:17	2
30809	99	34	2,27	cyclictest	6612	-21	ssh	00:20:23	2
30809	99	34	1,6	cyclictest	14964	-21	usage_EthcTask	20:30:30	2
30809	99	34	1,3	cyclictest	0	-21	swapper/2	19:20:20	2
30809	99	34	1,30	cyclictest	11353	-21	/usr/sbin/munin	21:00:30	2
30809	99	34	1,2	cyclictest	0	-21	swapper/2	23:45:13	2
30809	99	34	1,29	cyclictest	0	-21	swapper/2	20:15:11	2
30809	99	33	2,28	cyclictest	27533	-21	fschecks_time	19:40:20	2
30809	99	33	1,6	cyclictest	16360	-21	diskmemload	23:56:51	2
30809	99	33	1,4	cyclictest	13	1	rcu_preempt	23:00:12	2
30809	99	32	1,5	cyclictest	8847	-21	timerwakeupswit	22:15:31	2
30809	99	32	1,3	cyclictest	0	-21	swapper/2	22:30:15	2
30809	99	32	1,28	cyclictest	0	-21	swapper/2	22:43:40	2
30809	99	32	12,14	cyclictest	664	-21	ntpd	23:05:12	2
30809	99	32	0,4	cyclictest	31208	-21	netstat	00:15:22	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2019-05-28 - 00:17