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 #f, 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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system

Characteristics of the 100 highest latencies:

System rackfslot4s.osadl.org (updated Thu Jul 23, 2026 00:44:34)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
19102	2	133	0,3	chrt	19103	-21	runrttasks	23:36:07	0
24264	2	119	0,2	chrt	24265	-21	sh	21:15:33	0
5457	2	118	0,4	chrt	5458	-21	cat	23:16:00	0
25900	2	115	0,2	chrt	25903	-21	missed_timers	23:46:16	0
19661	2	115	0,3	chrt	19662	-21	seq	22:48:13	0
10845	2	115	0,2	chrt	10848	-21	switchtime	21:43:09	0
27657	2	111	0,4	chrt	27654	-21	sshd	22:08:24	0
8244	2	110	0,2	sleep0	8247	-21	tr	21:40:01	0
29070	2	110	0,3	chrt	29069	-21	seq	19:40:08	0
2748	2	109	0,3	chrt	2750	-21	cut	00:00:49	0
4320	2	108	0,2	chrt	4321	-21	sleep	23:14:25	0
28119	2	108	0,3	chrt	28120	-21	sh	21:20:55	0
6328	2	107	0,2	chrt	6324	-21	telnet	22:25:33	0
21512	2	107	0,3	chrt	21513	-21	sleep	19:27:22	0
6902	2	106	0,2	chrt	6903	-21	runrttasks	00:07:57	0
745	2	104	0,2	chrt	746	-21	sleep	21:28:11	0
21122	2	104	0,2	sleep0	21123	-21	fschecks_count	22:50:52	0
28691	2	100	0,2	chrt	28694	-21	tail	20:31:18	0
8927	2	98	0,2	sleep0	8925	-21	if_eth0	23:21:07	0
17818	2	97	0,2	sleep0	17819	-21	seq	21:53:45	0
26373	2	96	0,2	sleep0	26374	-21	chrt	20:26:28	0
21752	2	96	0,1	sleep0	21756	-21	irqrtprio	00:31:49	0
19244	2	94	0,2	sleep0	19246	-21	threads	21:06:34	0
32452	2	92	0,2	sleep0	32453	-21	chrt	23:07:18	0
2834	2	92	0,2	sleep0	2835	-21	seq	22:20:25	0
12607	2	92	0,2	sleep0	12608	-21	seq	00:18:22	0
22876	2	91	0,2	sleep0	22877	-21	chrt	19:30:11	0
21870	2	91	0,2	sleep0	21872	-21	chrt	22:00:09	0
32435	2	90	0,2	sleep0	32436	-21	chrt	19:45:14	0
25338	2	89	0,3	sleep0	25339	-21	chrt	00:36:54	0
27857	2	88	0,2	sleep0	27859	-21	cut	23:00:53	0
25984	2	88	0,2	sleep0	25985	-21	seq	19:35:15	0
19750	2	88	0,2	sleep0	19751	-21	seq	20:16:03	0
16071	2	85	0,2	sleep0	16072	-21	sh	23:31:30	0
14597	2	84	0,1	sleep0	14598	-21	chrt	23:30:03	0
13845	2	82	0,1	sleep0	13846	-21	chrt	19:15:39	0
21654	2	81	0,2	sleep0	21655	-21	chrt	21:59:59	0
16931	2	81	0,2	sleep0	16932	-21	find	20:11:26	0
10923	2	79	0,2	sleep0	10924	-21	seq	22:33:28	0
4437	2	76	0,2	sleep0	4438	-21	chrt	21:34:00	0
31796	2	72	0,1	sleep0	31797	-21	seq	22:15:06	0
17105	2	71	0,2	sleep0	17106	-21	awk	00:25:22	0
9285	2	70	8,52	sleep0	9289	-21	sleep	19:08:01	0
24572	2	64	0,2	sleep0	24585	-21	wc	23:45:04	0
13901	2	64	0,1	sleep0	13902	-21	cat	21:47:21	0
15291	2	59	0,2	sleep0	15292	-21	chrt	22:41:28	0
11012	2	54	4,8	sleep0	11017	-21	sshd	20:54:25	0
31627	2	50	0,3	sleep0	31618	-21	ssh	23:55:35	0
11549	2	50	3,8	sleep0	11508	-21	ntp_states	19:11:22	0
10077	90	50	20,23	cyclictest	0	-21	swapper	22:57:32	0
29641	2	48	0,2	chrt	29642	-21	runrttasks	23:51:59	0
10077	90	47	18,22	cyclictest	0	-21	swapper	21:13:54	0
10077	90	46	18,21	cyclictest	0	-21	swapper	00:12:12	0
10077	90	46	15,24	cyclictest	0	-21	swapper	00:21:14	0
11925	2	45	0,3	sleep0	11920	-21	ssh	22:35:36	0
17742	2	43	0,3	chrt	17741	-21	seq	19:21:15	0
10077	90	43	5,9	cyclictest	13691	-21	ntp_states	20:06:18	0
10077	90	42	6,17	cyclictest	12317	-21	irqstats	20:55:47	0
6554	2	41	0,1	sleep0	6553	-21	grep	19:55:35	0
10077	90	41	5,28	cyclictest	22221	-21	perl	20:20:34	0
10077	90	41	13,10	cyclictest	10524	-21	ntp_states	20:01:10	0
10077	90	41	10,23	cyclictest	0	-21	swapper	20:36:08	0
10077	90	40	4,11	cyclictest	5983	-21	munin-run	19:55:02	0
10077	90	40	15,19	cyclictest	30862	-21	ssh	22:13:09	0
10077	90	40	15,17	cyclictest	2255	-21	aten2.4_rfpower	20:40:24	0
10077	90	39	5,25	cyclictest	14552	-21	apt-get	21:00:13	0
10077	90	38	11,10	cyclictest	0	-21	swapper	20:47:21	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2024-02-27 - 12:39