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 #4, slot #1

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, lowest P state: performance
Compare latency of primary with shadow system

Characteristics of the 100 highest latencies:

System rack4slot1s.osadl.org (updated Fri Dec 12, 2025 06:45:41)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
6332	2	140	0,1	sleep3	0	-21	swapper/3	06:14:51	3
6332	2	140	0,1	sleep3	0	-21	swapper/3	06:14:51	3
6332	2	140	0,1	sleep3	0	-21	swapper/3	06:14:51	3
13047	2	139	0,5	sleep0	13050	-21	wc	05:41:00	0
13047	2	139	0,5	sleep0	13050	-21	wc	05:41:00	0
13047	2	139	0,5	sleep0	13050	-21	wc	05:41:00	0
10931	2	139	0,4	chrt	10913	-21	sh	06:13:24	0
10931	2	139	0,4	chrt	10913	-21	sh	06:13:24	0
10931	2	139	0,4	chrt	10913	-21	sh	06:13:24	0
28695	2	133	0,3	sleep2	0	-21	swapper/2	06:16:02	2
28695	2	133	0,3	sleep2	0	-21	swapper/2	06:16:02	2
28695	2	133	0,3	sleep2	0	-21	swapper/2	06:16:02	2
10720	2	130	0,2	sleep2	0	-21	swapper/2	05:30:16	2
10720	2	130	0,2	sleep2	0	-21	swapper/2	05:30:16	2
10720	2	130	0,2	sleep2	0	-21	swapper/2	05:30:16	2
11033	2	119	0,3	chrt	0	-21	swapper/3	06:01:21	3
11033	2	119	0,3	chrt	0	-21	swapper/3	06:01:21	3
28789	2	116	0,2	sleep1	28825	-21	sh	06:14:17	1
28789	2	116	0,2	sleep1	28825	-21	sh	06:14:17	1
28789	2	116	0,2	sleep1	28825	-21	sh	06:14:17	1
14512	2	114	0,2	sleep3	0	-21	swapper/3	05:45:45	3
9108	2	112	0,3	chrt	0	-21	swapper/3	05:28:48	3
9108	2	112	0,3	chrt	0	-21	swapper/3	05:28:48	3
9154	2	110	0,2	chrt	0	-21	swapper/1	05:28:54	1
9154	2	110	0,2	chrt	0	-21	swapper/1	05:28:54	1
12987	2	107	0,2	sleep3	0	-21	swapper/3	06:04:31	3
12987	2	107	0,2	sleep3	0	-21	swapper/3	06:04:31	3
13369	2	105	0,2	chrt	13371	-21	expr	05:45:42	0
11373	2	105	0,2	chrt	11372	-21	pipe	06:03:45	1
11373	2	105	0,2	chrt	11372	-21	pipe	06:03:45	1
8872	2	103	0,3	chrt	0	-21	swapper/3	05:54:36	3
8872	2	103	0,3	chrt	0	-21	swapper/3	05:54:36	3
419	2	102	0,2	sleep0	445	-21	sh	06:14:30	0
419	2	102	0,2	sleep0	445	-21	sh	06:14:30	0
419	2	102	0,2	sleep0	445	-21	sh	06:14:30	0
20632	2	102	0,2	sleep3	0	-21	swapper/3	06:13:53	3
20632	2	102	0,2	sleep3	0	-21	swapper/3	06:13:53	3
20632	2	102	0,2	sleep3	0	-21	swapper/3	06:13:53	3
32236	2	101	0,2	chrt	32237	-21	expr	06:12:57	1
32236	2	101	0,2	chrt	32237	-21	expr	06:12:57	1
32236	2	101	0,2	chrt	32237	-21	expr	06:12:57	1
10985	2	100	0,14	sleep3	0	-21	swapper/3	05:32:59	3
10985	2	100	0,14	sleep3	0	-21	swapper/3	05:32:59	3
10985	2	100	0,14	sleep3	0	-21	swapper/3	05:32:59	3
10679	2	100	0,3	sleep1	0	-21	swapper/1	05:29:51	1
10679	2	100	0,3	sleep1	0	-21	swapper/1	05:29:51	1
10679	2	100	0,3	sleep1	0	-21	swapper/1	05:29:51	1
11231	2	94	0,2	chrt	0	-21	swapper/2	06:02:53	2
11231	2	94	0,2	chrt	0	-21	swapper/2	06:02:53	2
8495	2	92	0,2	chrt	7421	-21	execl	05:54:22	1
8495	2	92	0,2	chrt	7421	-21	execl	05:54:22	1
12687	2	91	0,2	chrt	0	-21	swapper/1	06:04:25	1
12687	2	91	0,2	chrt	0	-21	swapper/1	06:04:25	1
13018	2	89	0,1	sleep2	0	-21	swapper/2	06:04:39	2
13018	2	89	0,1	sleep2	0	-21	swapper/2	06:04:39	2
5005	2	82	0,3	sleep1	5009	-21	rm	05:43:47	1
5005	2	82	0,3	sleep1	5009	-21	rm	05:43:47	1
5005	2	82	0,3	sleep1	5009	-21	rm	05:43:47	1
7268	2	81	0,2	sleep0	7263	-21	execl	05:53:28	0
7268	2	81	0,2	sleep0	7263	-21	execl	05:53:28	0
18044	2	79	0,2	sleep0	18055	-21	spawn	06:07:02	0
18044	2	79	0,2	sleep0	18055	-21	spawn	06:07:02	0
6585	2	77	0,4	sleep1	6486	-21	dhry2reg	05:48:58	1
3316	2	74	0,1	sleep2	0	-21	swapper/2	05:45:15	2
7286	2	71	0,3	sleep3	0	-21	swapper/3	05:53:43	3
7286	2	71	0,3	sleep3	0	-21	swapper/3	05:53:43	3
8830	2	70	0,2	sleep3	0	-21	swapper/3	05:43:58	3
8830	2	70	0,2	sleep3	0	-21	swapper/3	05:43:58	3
8830	2	70	0,2	sleep3	0	-21	swapper/3	05:43:58	3
20249	2	65	0,1	sleep2	0	-21	swapper/2	06:13:51	2
20249	2	65	0,1	sleep2	0	-21	swapper/2	06:13:51	2
20249	2	65	0,1	sleep2	0	-21	swapper/2	06:13:51	2
11214	2	62	0,1	sleep0	11227	-21	pipe	06:02:52	0
11214	2	62	0,1	sleep0	11227	-21	pipe	06:02:52	0
10263	2	60	0,2	sleep1	0	-21	swapper/1	05:38:08	1
12782	2	59	0,2	chrt	0	-21	swapper/2	05:35:35	2
8758	2	57	0,4	chrt	20	1	rcuc/0	05:24:59	0
8758	2	57	0,4	chrt	20	1	rcuc/0	05:24:59	0
12274	2	55	0,3	sleep2	0	-21	swapper/2	05:42:32	2
12274	2	55	0,3	sleep2	0	-21	swapper/2	05:42:32	2
12274	2	55	0,3	sleep2	0	-21	swapper/2	05:42:32	2
9142	2	52	0,2	sleep2	0	-21	swapper/2	05:57:21	2
9142	2	52	0,2	sleep2	0	-21	swapper/2	05:57:21	2
8896	2	52	0,3	sleep2	0	-21	swapper/2	05:26:30	2
8896	2	52	0,3	sleep2	0	-21	swapper/2	05:26:30	2
12720	2	52	0,3	chrt	0	-21	swapper/3	05:35:04	3
7285	2	50	0,2	chrt	0	-21	swapper/2	05:53:42	2
7285	2	50	0,2	chrt	0	-21	swapper/2	05:53:42	2
2857	99	44	16,3	cyclictest	0	-21	swapper/0	05:54:21	0
2857	99	44	16,3	cyclictest	0	-21	swapper/0	05:54:21	0
8525	2	43	0,3	sleep2	0	-21	swapper/2	05:23:57	2
2857	99	41	17,4	cyclictest	146	-21	systemd-journal	06:22:54	0
2857	99	41	17,4	cyclictest	146	-21	systemd-journal	06:22:54	0
2857	99	39	33,4	cyclictest	8421	-21	cron	05:23:54	0
18276	2	38	0,2	sleep1	27	1	rcuc/1	06:29:13	1
18276	2	38	0,2	sleep1	27	1	rcuc/1	06:29:13	1
10683	2	37	0,2	sleep0	10255	-21	fstime	05:29:55	0
10683	2	37	0,2	sleep0	10255	-21	fstime	05:29:55	0
10683	2	37	0,2	sleep0	10255	-21	fstime	05:29:55	0
1659	2	35	0,1	sleep0	3380	-21	spawn	05:38:04	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