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 792 highest latencies:

System rackfslot4s.osadl.org (updated Sun May 31, 2026 00:44:36)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
12225	2	128	0,2	chrt	12226	-21	runrttasks	23:03:02	0
27042	2	124	0,3	chrt	26523	-21	apt-get	23:25:30	0
25671	2	119	0,2	chrt	25665	-21	ntpq	00:11:15	0
25284	2	119	0,2	chrt	25282	-21	ls	20:05:02	0
29658	2	118	0,2	chrt	29659	-21	sleep	22:40:58	0
5375	2	117	0,2	sleep0	5434	-21	cut	21:16:10	0
24704	2	117	0,2	chrt	24700	-21	ntpq	23:21:27	0
2368	2	117	0,1	sleep0	2369	-21	chrt	22:48:21	0
7828	2	116	0,2	chrt	7827	-21	seq	00:32:45	0
463	2	116	0,2	sleep0	462	-21	seq	23:34:06	0
24015	2	115	0,3	chrt	24016	-21	runrttasks	20:54:52	0
17126	2	115	0,2	chrt	15625	-21	/usr/sbin/munin	22:21:50	0
20729	2	114	0,1	sleep0	20730	-21	chrt	00:04:29	0
18755	2	114	0,3	chrt	18758	-21	cut	20:45:44	0
3247	2	113	0,2	chrt	3248	-21	sleep	21:12:36	0
17657	2	112	0,3	chrt	17658	-21	chrt	21:34:43	0
8206	2	111	0,2	chrt	8207	-21	sleep	21:20:29	0
6795	2	111	0,2	chrt	6796	-21	chrt	19:35:15	0
30818	2	111	0,2	chrt	30815	-21	df_inode	21:05:28	0
6543	2	110	0,2	chrt	6544	-21	sleep	22:55:06	0
19606	2	110	0,3	chrt	19607	-21	seq	23:14:50	0
8635	2	109	0,2	chrt	8634	-21	awk	20:30:22	0
763	2	109	0,1	sleep0	764	-21	sh	00:22:46	0
10189	2	109	0,3	chrt	10191	-21	chrt	00:36:45	0
29428	2	103	0,2	chrt	29429	-21	sleep	19:19:50	0
26167	2	102	0,1	sleep0	26170	-21	cut	22:35:51	0
23931	2	101	0,2	chrt	23932	-21	seq	00:09:12	0
3735	2	100	0,2	sleep0	3736	-21	ssh	22:01:57	0
6059	2	99	0,2	sleep0	6060	-21	seq	23:42:09	0
29076	2	98	0,2	sleep0	29077	-21	cut	21:51:09	0
21672	2	93	0,2	sleep0	21673	-21	seq	23:17:14	0
3603	2	89	0,1	sleep0	3604	-21	chrt	23:38:41	0
6376	2	88	0,2	sleep0	6377	-21	seq	22:54:59	0
11903	2	77	0,1	sleep0	11904	-21	chrt	20:35:28	0
5433	2	76	0,2	sleep0	5434	-21	chrt	20:25:17	0
15100	2	76	0,2	sleep0	15101	-21	chrt	20:40:35	0
20149	2	75	10,15	sleep0	20120	-21	apt-get	19:05:18	0
14029	2	74	0,2	sleep0	14031	-21	chrt	21:28:58	0
13774	2	73	0,2	sleep0	13775	-21	seq	23:54:08	0
15508	2	72	0,2	sleep0	15510	-21	ssh	22:20:05	0
2662	2	70	0,2	sleep0	2663	-21	chrt	20:20:31	0
30931	2	68	0,1	sleep0	30935	-21	sendmail	00:19:59	0
6692	2	67	0,2	sleep0	6690	-21	if_err_eth2	22:06:43	0
31591	2	65	0,2	sleep0	31595	-21	cpu	21:55:34	0
25166	2	62	0,1	sleep0	25169	-21	kernelversion	20:55:47	0
3233	2	58	0,2	sleep0	3234	-21	chrt	00:26:30	0
21313	2	56	3,8	sleep0	21321	-21	apt-get	21:40:12	0
9006	2	55	0,1	sleep0	9007	-21	seq	22:10:19	0
337	2	53	3,41	sleep0	341	-21	sleep	19:24:57	0
13701	2	53	3,8	sleep0	13696	-21	diskstats	23:05:46	0
10146	2	53	0,2	sleep0	10147	-21	aten2.4_rfpower	19:40:25	0
576	2	52	4,8	sleep0	564	-21	apt-get	19:25:14	0
4844	2	52	3,40	sleep0	4846	-21	ntpq	19:31:05	0
28720	2	52	3,41	sleep0	28679	-21	ntp_states	21:01:22	0
24605	2	51	3,39	sleep0	24608	-21	ssh	22:33:08	0
18078	2	51	3,8	sleep0	18082	-21	sleep	21:35:28	0
31683	2	50	3,6	sleep0	31627	-21	apt-get	20:15:22	0
8010	2	46	0,2	chrt	8008	-21	/usr/sbin/munin	23:45:36	0
23138	90	46	18,21	cyclictest	0	-21	swapper	23:59:56	0
26526	2	45	0,3	chrt	26510	-21	ntpq	20:06:03	0
20607	2	44	0,3	chrt	20608	-21	runrttasks	22:27:07	0
26395	2	43	0,3	sleep0	26389	-21	pluginstate	21:47:18	0
23138	90	43	5,19	cyclictest	29725	-21	ntpq	20:11:15	0
23138	90	43	5,18	cyclictest	20494	-21	ntp_states	19:56:18	0
23138	90	42	4,19	cyclictest	13971	-21	memory	19:45:49	0
23138	90	41	14,9	cyclictest	412	-21	snmpd	19:52:20	0
23138	90	39	13,19	cyclictest	23465	-21	apt-key	19:10:11	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