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 all highest latencies:

System rackfslot4s.osadl.org (updated Mon May 04, 2026 00:44:35)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
9031	2	122	0,2	chrt	9030	-21	ssh	21:43:52	0
12195	2	120	0,2	chrt	12193	-21	cat	20:06:32	0
16320	2	118	0,2	chrt	16316	-21	python3	19:21:24	0
1050	2	117	0,3	chrt	1038	-21	ntpq	23:57:26	0
29143	2	116	0,2	chrt	29072	-21	munin-run	00:40:05	0
27025	2	116	0,3	chrt	27023	-21	threads	23:47:20	0
30461	2	115	0,3	chrt	30462	-21	seq	23:52:26	0
13938	2	115	0,3	chrt	13930	-21	ntpq	00:16:33	0
32317	2	113	0,3	chrt	32313	-21	telnet	21:30:34	0
20080	2	113	0,2	chrt	20081	-21	seq	21:12:00	0
11596	2	113	0,2	chrt	11597	-21	sleep	20:58:38	0
18966	2	112	0,2	chrt	18964	-21	grep	23:35:51	0
827	2	111	0,2	chrt	828	-21	seq	19:49:26	0
4039	2	111	0,2	sleep0	4041	-21	latency_hist	22:25:04	0
12164	2	110	0,2	chrt	12165	-21	seq	21:48:21	0
5474	2	109	0,3	chrt	5475	-21	sleep	22:26:28	0
3913	2	109	0,2	chrt	3911	-21	latency	20:45:47	0
9719	2	107	0,2	chrt	9720	-21	sleep	22:32:54	0
6034	2	107	0,3	chrt	6035	-21	sleep	21:39:45	0
24825	2	107	0,4	chrt	24826	-21	sleep	00:32:51	0
17770	2	107	0,3	chrt	17769	-21	hostname	22:45:35	0
14587	2	107	0,3	chrt	14588	-21	sh	19:19:57	0
7980	2	106	0,3	chrt	7981	-21	sleep	19:08:55	0
24373	2	106	0,2	sleep0	24374	-21	runrttasks	23:43:45	0
5016	2	105	0,2	chrt	5017	-21	sh	00:03:16	0
23521	2	103	0,2	chrt	23522	-21	sleep	19:33:52	0
28933	2	102	0,2	sleep0	28934	-21	seq	22:13:06	0
11244	2	101	0,3	chrt	11245	-21	sh	19:14:19	0
31680	2	100	0,3	chrt	31681	-21	sleep	20:38:50	0
9449	2	95	0,2	sleep0	9450	-21	chrt	23:21:41	0
12256	2	95	0,2	sleep0	12257	-21	seq	00:14:43	0
18638	2	94	0,2	sleep0	18639	-21	seq	00:23:59	0
14367	2	94	0,2	sleep0	14366	-21	ld	21:51:28	0
19523	2	91	0,2	sleep0	19524	-21	hostname	00:25:34	0
14699	2	91	0,2	sleep0	14700	-21	seq	23:29:29	0
6156	2	83	0,3	sleep0	6144	-21	ssh	00:05:34	0
2709	2	83	0,3	sleep0	2710	-21	uname	23:11:10	0
24261	2	83	0,1	sleep0	24262	-21	aten2.4_rfpower	22:55:31	0
18367	2	81	0,1	sleep0	18368	-21	runrttasks	21:10:02	0
1533	2	78	0,2	sleep0	1534	-21	chrt	23:10:05	0
32177	2	76	0,2	sleep0	32178	-21	chrt	22:17:53	0
19323	2	70	0,2	sleep0	19324	-21	seq	21:59:28	0
15210	2	69	0,1	sleep0	15211	-21	chrt	21:05:00	0
14204	2	59	3,6	sleep0	14157	-21	apt-get	22:40:21	0
9019	2	57	5,7	sleep0	9005	-21	munin-run	20:55:01	0
17955	2	56	3,6	sleep0	17926	-21	apt-get	19:25:17	0
17156	2	56	0,2	sleep0	17158	-21	cut	20:15:35	0
28469	2	53	3,7	sleep0	28480	-21	ntpq	19:41:08	0
23693	2	53	0,3	chrt	23695	-21	sh	21:17:07	0
16482	2	53	3,42	sleep0	16479	-21	ntpq	23:31:34	0
13119	2	52	4,7	sleep0	13123	-21	runrttasks	22:38:07	0
8762	2	50	3,37	sleep0	8760	-21	ntpq	20:01:20	0
25330	2	50	2,6	sleep0	25348	-21	/usr/sbin/munin	19:36:08	0
24201	2	49	0,2	chrt	24197	-21	/usr/sbin/munin	22:06:32	0
32366	2	48	3,36	sleep0	32324	-21	apt-get	20:40:19	0
8449	90	47	17,21	cyclictest	0	-21	swapper	21:29:21	0
25439	2	47	0,1	sleep0	25440	-21	chrt	21:20:15	0
28481	2	45	3,35	sleep0	28475	-21	irqstats	23:01:06	0
8449	90	44	18,19	cyclictest	0	-21	swapper	23:19:58	0
8449	90	44	15,14	cyclictest	0	-21	swapper	22:02:48	0
8449	90	43	4,11	cyclictest	22795	-21	users	22:52:23	0
8449	90	41	4,10	cyclictest	4834	-21	hddtemp_smartct	19:55:37	0
14962	2	41	0,2	chrt	14961	-21	seq	20:11:18	0
28422	2	39	2,7	sleep0	0	-21	swapper	20:33:24	0
8449	90	38	7,12	cyclictest	20857	-21	memory	20:20:48	0
8449	90	38	12,9	cyclictest	1204	-21	seq	19:50:10	0
8449	90	38	12,19	cyclictest	0	-21	swapper	20:25:34	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