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 Mar 19, 2026 00:45:14)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
11519	99	63	5,20	cyclictest	12	-21	ksoftirqd/0	22:45:13	0
11524	99	57	4,10	cyclictest	13	1	rcu_preempt	23:05:12	1
11541	99	54	48,4	cyclictest	283	66	irq/58-eth0	22:00:13	3
11524	99	54	34,7	cyclictest	21	-21	ksoftirqd/1	21:00:12	1
11519	99	53	6,7	cyclictest	13	1	rcu_preempt	21:45:13	0
11532	99	51	1,3	cyclictest	13	1	rcu_preempt	20:30:11	2
11524	99	51	1,39	cyclictest	30227	-21	ssh	21:10:13	1
11532	99	50	23,23	cyclictest	0	-21	swapper/2	23:15:12	2
11532	99	48	1,30	cyclictest	6788	-21	ssh	21:15:11	2
11519	99	48	35,8	cyclictest	12	-21	ksoftirqd/0	00:35:13	0
11541	99	44	25,11	cyclictest	32	1	rcuc/3	23:50:13	3
11524	99	44	3,30	cyclictest	20963	-21	ssh	00:05:12	1
11519	99	42	3,30	cyclictest	19123	-21	ssh	23:10:13	0
11524	99	41	15,19	cyclictest	3030	-21	ssh	23:35:26	1
11532	99	40	1,29	cyclictest	9947	-21	ssh	00:35:13	2
11524	99	40	11,17	cyclictest	1224	-21	ssh	23:00:13	1
11524	99	39	3,5	cyclictest	13	1	rcu_preempt	22:55:13	1
11519	99	39	3,33	cyclictest	6798	-21	ssh	21:15:13	0
11519	99	39	17,17	cyclictest	12	-21	ksoftirqd/0	19:20:12	0
11541	99	38	24,10	cyclictest	283	66	irq/58-eth0	20:30:10	3
11519	99	38	15,17	cyclictest	12	-21	ksoftirqd/0	23:25:12	0
11519	99	37	14,17	cyclictest	12	-21	ksoftirqd/0	00:25:13	0
11541	99	35	3,20	cyclictest	283	66	irq/58-eth0	21:55:12	3
11532	99	35	3,25	cyclictest	0	-21	swapper/2	19:10:11	2
11519	99	35	2,24	cyclictest	12	-21	ksoftirqd/0	19:30:12	0
11532	99	34	2,25	cyclictest	3326	-21	mailstats	22:05:27	2
11532	99	34	2,25	cyclictest	3326	-21	mailstats	22:05:26	2
11524	99	34	2,4	cyclictest	13	1	rcu_preempt	21:35:11	1
11519	99	34	2,23	cyclictest	4840	-21	rm	21:50:13	0
11519	99	34	2,23	cyclictest	4840	-21	rm	21:50:12	0
11519	99	34	2,22	cyclictest	2880	-21	ssh	23:55:13	0
11541	99	33	20,10	cyclictest	0	-21	swapper/3	23:30:14	3
11541	99	33	1,25	cyclictest	283	66	irq/58-eth0	23:10:14	3
11524	99	33	2,24	cyclictest	21	-21	ksoftirqd/1	22:50:11	1
11524	99	33	2,23	cyclictest	20840	-21	cat	19:15:28	1
11524	99	33	1,23	cyclictest	0	-21	swapper/1	22:15:11	1
11519	99	33	1,23	cyclictest	29946	-21	ssh	22:40:11	0
11541	99	32	3,18	cyclictest	283	66	irq/58-eth0	21:50:12	3
11541	99	32	3,18	cyclictest	283	66	irq/58-eth0	21:50:11	3
11532	99	32	1,6	cyclictest	0	-21	swapper/2	22:45:13	2
11519	99	32	5,23	cyclictest	31937	-21	sh	22:05:12	0
11519	99	32	5,23	cyclictest	31937	-21	sh	22:05:12	0
11519	99	32	4,21	cyclictest	13877	-21	ssh	21:55:11	0
11519	99	32	1,23	cyclictest	12	-21	ksoftirqd/0	20:10:12	0
11532	99	31	9,14	cyclictest	0	-21	swapper/2	21:55:14	2
11532	99	31	2,11	cyclictest	2158	-21	ssh	22:24:27	2
11524	99	31	2,21	cyclictest	1327	-21	ssh	21:30:13	1
11524	99	31	17,10	cyclictest	0	-21	swapper/1	22:20:13	1
11519	99	31	2,23	cyclictest	22759	-21	ssh	23:30:13	0
11519	99	31	11,6	cyclictest	0	-21	swapper/0	20:30:11	0
11541	99	30	17,8	cyclictest	0	-21	swapper/3	22:05:13	3
11541	99	30	17,8	cyclictest	0	-21	swapper/3	22:05:13	3
11532	99	30	9,7	cyclictest	0	-21	swapper/2	19:45:13	2
11532	99	30	9,7	cyclictest	0	-21	swapper/2	19:45:12	2
11532	99	30	3,5	cyclictest	13	1	rcu_preempt	00:25:12	2
11524	99	30	1,22	cyclictest	1009	-21	ssh	00:30:13	1
11519	99	30	2,22	cyclictest	28164	-21	ssh	23:15:12	0
11519	99	30	14,10	cyclictest	12	-21	ksoftirqd/0	19:45:12	0
11519	99	30	14,10	cyclictest	12	-21	ksoftirqd/0	19:45:12	0
11532	99	29	2,16	cyclictest	4839	-21	diskmemload	21:50:12	2
11532	99	29	2,16	cyclictest	4839	-21	diskmemload	21:50:12	2
11532	99	29	12,7	cyclictest	0	-21	swapper/2	20:05:02	2
11524	99	29	2,20	cyclictest	20961	-21	ssh	22:35:12	1
11519	99	29	2,21	cyclictest	19265	-21	ssh	22:33:28	0
11519	99	29	2,21	cyclictest	19265	-21	ssh	22:33:27	0
11519	99	29	1,22	cyclictest	8498	-21	ssh	22:10:12	0
11541	99	28	13,11	cyclictest	0	-21	swapper/3	22:10:11	3
11532	99	28	4,18	cyclictest	223	46	irq/40-dwc2_hso	19:20:12	2
11532	99	28	2,19	cyclictest	0	-21	swapper/2	22:40:12	2
11532	99	28	2,18	cyclictest	17291	-21	ssh	23:45:11	2
11532	99	28	2,14	cyclictest	223	46	irq/40-dwc2_hso	21:45:13	2
11524	99	28	2,18	cyclictest	26286	-21	ssh	23:50:12	1
11519	99	28	16,3	cyclictest	12	-21	ksoftirqd/0	22:29:21	0
11519	99	28	1,19	cyclictest	26518	-21	ssh	22:20:14	0
11532	99	27	4,16	cyclictest	223	46	irq/40-dwc2_hso	22:25:14	2
11532	99	27	2,9	cyclictest	26387	-21	ssh	23:13:27	2
11532	99	27	2,6	cyclictest	32417	-21	sshd	20:05:12	2
11524	99	27	2,19	cyclictest	5669	-21	ssh	00:14:27	1
11524	99	27	2,19	cyclictest	5669	-21	ssh	00:14:27	1
11524	99	27	2,19	cyclictest	30071	-21	ssh	23:33:26	1
11519	99	27	2,18	cyclictest	22840	-21	ssh	22:00:13	0
11519	99	27	14,4	cyclictest	12	-21	ksoftirqd/0	21:35:31	0
11519	99	27	14,3	cyclictest	12	-21	ksoftirqd/0	23:46:45	0
11541	99	26	2,11	cyclictest	0	-21	swapper/3	21:15:12	3
11541	99	26	1,15	cyclictest	283	66	irq/58-eth0	23:45:11	3
11532	99	26	2,8	cyclictest	15607	-21	ssh	23:43:27	2
11532	99	26	1,9	cyclictest	26540	66	ssh	22:00:24	2
11532	99	26	13,10	cyclictest	5667	-21	sshd	00:14:28	2
11532	99	26	13,10	cyclictest	5667	-21	sshd	00:14:27	2
11532	99	26	10,13	cyclictest	0	-21	swapper/2	22:32:11	2
11532	99	26	10,13	cyclictest	0	-21	swapper/2	22:32:10	2
11519	99	26	0,11	cyclictest	26100	-21	sendmail	22:20:01	0
11541	99	25	2,17	cyclictest	0	-21	swapper/3	22:20:26	3
11541	99	25	2,11	cyclictest	0	-21	swapper/3	20:05:13	3
11541	99	25	15,7	cyclictest	283	66	irq/58-eth0	22:50:16	3
11541	99	25	10,10	cyclictest	0	-21	swapper/3	23:35:26	3
11532	99	25	9,13	cyclictest	14007	-21	swap	23:05:27	2
11532	99	25	3,9	cyclictest	27	-21	ksoftirqd/2	22:55:13	2
11532	99	25	2,17	cyclictest	223	46	irq/40-dwc2_hso	20:10:13	2
11532	99	25	1,12	cyclictest	31789	-21	ssh	23:35:15	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