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 Fri Aug 14, 2026 00:45:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
24498	99	60	1,4	cyclictest	13	1	rcu_preempt	20:15:13	0
24508	99	59	3,52	cyclictest	10059	-21	ssh	23:15:14	1
24498	99	52	4,43	cyclictest	21028	-21	ssh	00:15:13	0
24508	99	49	2,7	cyclictest	13	1	rcu_preempt	22:50:12	1
24498	99	48	2,42	cyclictest	6651	-21	ssh	00:25:15	0
24519	99	45	25,15	cyclictest	24625	-21	apt-get	19:10:14	2
24498	99	44	1,32	cyclictest	5426	-21	ssh	21:25:16	0
24519	99	43	11,22	cyclictest	27	-21	ksoftirqd/2	23:40:13	2
24519	99	42	2,17	cyclictest	0	-21	swapper/2	20:15:13	2
24508	99	42	13,20	cyclictest	21	-21	ksoftirqd/1	22:55:12	1
24498	99	42	2,33	cyclictest	29687	-21	ssh	22:50:13	0
24519	99	41	11,25	cyclictest	0	-21	swapper/2	20:00:12	2
24519	99	39	2,19	cyclictest	17390	-21	ssh	23:55:11	2
24519	99	39	13,22	cyclictest	7763	-21	ssh	22:20:14	2
24508	99	37	6,22	cyclictest	13005	-21	diskmemload	22:05:14	1
24519	99	36	16,11	cyclictest	27	-21	ksoftirqd/2	00:05:16	2
24519	99	36	1,21	cyclictest	28812	-21	ssh	21:20:14	2
24519	99	35	2,16	cyclictest	4890	-21	mailstats	23:10:27	2
24519	99	34	6,13	cyclictest	0	-21	swapper/2	23:50:12	2
24519	99	34	21,3	cyclictest	4399	-21	apt-get	20:30:14	2
24519	99	34	21,3	cyclictest	4399	-21	apt-get	20:30:14	2
24519	99	34	13,13	cyclictest	930	-21	snmpd	00:10:13	2
24528	99	33	3,16	cyclictest	359	66	irq/58-eth0	19:55:11	3
24528	99	33	3,16	cyclictest	359	66	irq/58-eth0	19:55:11	3
24528	99	33	15,13	cyclictest	359	66	irq/58-eth0	21:25:15	3
24519	99	33	19,9	cyclictest	29058	-21	ssh	21:36:26	2
24498	99	33	2,21	cyclictest	20732	-21	ssh	22:45:15	0
24498	99	33	1,4	cyclictest	13	1	rcu_preempt	22:55:13	0
24519	99	32	23,5	cyclictest	20702	-21	apt-get	22:45:15	2
24519	99	32	21,7	cyclictest	3932	-21	apt-get	22:00:13	2
24519	99	32	19,10	cyclictest	11650	-21	apt-get	22:40:14	2
24508	99	32	4,22	cyclictest	24440	-21	ssh	23:05:12	1
24508	99	32	3,16	cyclictest	13720	-21	ssh	23:35:12	1
24519	99	31	3,17	cyclictest	273	46	irq/40-dwc2_hso	22:50:15	2
24519	99	31	2,22	cyclictest	30363	-21	ssh	00:36:33	2
24519	99	31	2,21	cyclictest	25779	-21	ntp_states	22:10:27	2
24519	99	31	18,8	cyclictest	273	46	irq/40-dwc2_hso	21:45:16	2
24519	99	31	18,8	cyclictest	273	46	irq/40-dwc2_hso	00:15:14	2
24508	99	31	1,24	cyclictest	11662	-21	ssh	22:40:13	1
24519	99	30	9,16	cyclictest	0	-21	swapper/2	21:32:24	2
24519	99	30	4,17	cyclictest	273	46	irq/40-dwc2_hso	19:30:12	2
24498	99	30	2,21	cyclictest	13018	-21	ssh	22:05:14	0
24528	99	29	1,17	cyclictest	359	66	irq/58-eth0	00:00:13	3
24519	99	29	5,12	cyclictest	0	-21	swapper/2	21:25:15	2
24519	99	29	4,20	cyclictest	0	-21	swapper/2	22:25:13	2
24519	99	29	23,3	cyclictest	6329	-21	apt-get	22:55:13	2
24519	99	29	2,20	cyclictest	0	-21	swapper/2	21:00:11	2
24519	99	29	2,17	cyclictest	273	46	irq/40-dwc2_hso	22:30:13	2
24508	99	29	10,14	cyclictest	21926	-1	kworker/u9:0	21:35:26	1
24528	99	28	3,22	cyclictest	359	66	irq/58-eth0	23:35:13	3
24528	99	28	2,17	cyclictest	0	-21	swapper/3	20:30:13	3
24528	99	28	2,17	cyclictest	0	-21	swapper/3	20:30:13	3
24519	99	28	7,17	cyclictest	0	-21	swapper/2	19:45:13	2
24519	99	28	5,18	cyclictest	0	-21	swapper/2	20:45:15	2
24519	99	28	3,21	cyclictest	0	-21	swapper/2	00:03:30	2
24519	99	28	3,20	cyclictest	0	-21	swapper/2	23:09:27	2
24519	99	28	1,11	cyclictest	6621	-21	ssh	00:25:14	2
24508	99	28	12,4	cyclictest	2611	-21	ssh	22:35:12	1
24498	99	28	2,21	cyclictest	32026	-21	ssh	00:38:33	0
24498	99	28	2,16	cyclictest	31083	-21	ssh	22:15:12	0
24498	99	28	1,22	cyclictest	3948	-21	ssh	22:00:13	0
24498	99	28	1,17	cyclictest	3069	-21	ssh	00:05:18	0
24519	99	27	7,12	cyclictest	0	-21	swapper/2	22:15:58	2
24519	99	27	3,15	cyclictest	273	46	irq/40-dwc2_hso	21:55:14	2
24519	99	27	3,13	cyclictest	273	46	irq/40-dwc2_hso	00:30:13	2
24519	99	27	2,19	cyclictest	0	-21	swapper/2	21:40:15	2
24519	99	27	2,10	cyclictest	0	-21	swapper/2	23:39:28	2
24508	99	27	4,18	cyclictest	28111	-21	ssh	23:25:12	1
24519	99	26	5,12	cyclictest	0	-21	swapper/2	22:36:50	2
24519	99	26	4,13	cyclictest	273	46	irq/40-dwc2_hso	20:55:13	2
24519	99	26	2,15	cyclictest	273	46	irq/40-dwc2_hso	20:40:12	2
24519	99	26	1,14	cyclictest	15363	-21	ssh	23:00:13	2
24519	99	26	10,14	cyclictest	273	46	irq/40-dwc2_hso	21:10:14	2
24508	99	26	2,19	cyclictest	18028	-21	ssh	21:30:26	1
24498	99	26	2,18	cyclictest	18023	-21	sh	21:30:26	0
24528	99	25	1,16	cyclictest	359	66	irq/58-eth0	21:45:15	3
24528	99	25	1,12	cyclictest	0	-21	swapper/3	00:20:14	3
24519	99	25	9,10	cyclictest	0	-21	swapper/2	21:15:13	2
24519	99	25	14,8	cyclictest	31860	-21	apt-get	23:45:12	2
24519	99	25	14,8	cyclictest	31860	-21	apt-get	23:45:12	2
24519	99	25	1,21	cyclictest	6146	66	ssh	00:24:55	2
24519	99	25	10,12	cyclictest	0	-21	swapper/2	21:50:15	2
24519	99	25	0,15	cyclictest	2028	-21	grep	19:20:16	2
24508	99	25	13,8	cyclictest	8972	-21	cron	20:35:01	1
24508	99	25	13,8	cyclictest	8972	-21	cron	20:35:01	1
24498	99	25	6,13	cyclictest	10327	-21	diskmemload	23:30:13	0
24498	99	25	2,18	cyclictest	26404	-21	ssh	00:00:14	0
24498	99	25	1,19	cyclictest	9179	-21	ssh	21:45:16	0
24498	99	25	1,17	cyclictest	6618	-21	sshd	19:25:14	0
24528	99	24	5,16	cyclictest	359	66	irq/58-eth0	23:45:12	3
24528	99	24	5,16	cyclictest	359	66	irq/58-eth0	23:45:12	3
24528	99	24	2,11	cyclictest	0	-21	swapper/3	21:24:26	3
24528	99	24	10,5	cyclictest	0	-21	swapper/3	22:00:28	3
24519	99	24	9,11	cyclictest	0	-21	swapper/2	23:20:12	2
24519	99	24	5,14	cyclictest	0	-21	swapper/2	20:10:13	2
24519	99	24	2,17	cyclictest	930	-21	snmpd	20:20:13	2
24519	99	24	2,17	cyclictest	0	-21	swapper/2	20:50:04	2
24519	99	24	1,8	cyclictest	0	-21	swapper/2	22:06:03	2
24508	99	24	5,17	cyclictest	20	1	rcuc/1	21:50:16	1
24498	99	24	18,4	cyclictest	13730	-21	rm	23:35:12	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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