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 Tue Jul 21, 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
13604	2	185	0,3	chrt	13602	-21	irqstats	19:05:35	0
24117	2	126	0,4	chrt	24116	-21	ssh	23:32:00	0
15905	2	125	0,3	chrt	14572	-21	apt-get	22:31:41	0
24220	2	122	0,2	chrt	24219	-21	basename	21:55:49	0
608	2	119	0,2	chrt	607	-21	/usr/sbin/munin	21:20:53	0
22988	2	118	0,2	chrt	22984	-21	ntpq	22:41:39	0
4334	2	117	0,3	chrt	4335	-21	aten2.4_rfpower	23:50:51	0
28693	2	117	0,3	chrt	28689	-21	aten2.4-expect	22:50:49	0
26365	2	114	0,3	chrt	26362	-21	ntpq	22:46:46	0
21380	2	113	0,2	sleep0	21385	-21	rm	21:51:37	0
10932	2	113	0,2	chrt	10931	-21	seq	00:00:34	0
32234	2	112	0,2	chrt	32235	-21	runrttasks	00:32:02	0
22494	2	110	0,2	chrt	22495	-21	sleep	00:17:19	0
25178	2	108	0,2	chrt	25179	-21	sleep	21:08:49	0
24422	2	108	0,3	chrt	24423	-21	sleep	19:23:14	0
17414	2	108	0,2	chrt	17415	-21	chrt	23:21:52	0
14457	2	108	0,2	sleep0	14492	-21	cat	23:17:22	0
12051	2	108	0,2	chrt	12050	-21	ssh	23:14:22	0
4463	2	106	0,3	chrt	4464	-21	sh	22:14:46	0
18018	2	106	0,2	chrt	18017	-21	/usr/sbin/munin	00:11:02	0
17823	2	105	0,3	chrt	17824	-21	sleep	19:12:14	0
12662	2	103	0,4	chrt	12663	-21	modprobe	22:26:19	0
16451	2	101	0,2	chrt	16452	-21	sleep	20:55:09	0
9992	2	96	0,1	sleep0	9993	-21	seq	22:22:19	0
1144	2	93	0,3	sleep0	1142	-21	df_inode	23:46:06	0
27192	2	89	0,2	sleep0	27193	-21	irqrtprio	23:36:50	0
955	2	88	0,2	sleep0	958	-21	awk	19:37:16	0
27071	2	86	0,2	sleep0	27072	-21	chrt	00:25:01	0
1355	2	82	0,1	sleep0	1356	-21	seq	22:57:37	0
21978	2	81	0,1	sleep0	21981	-21	grep	19:20:01	0
13749	2	81	0,2	sleep0	13750	-21	cat	21:40:21	0
8716	2	80	0,2	sleep0	8717	-21	chrt	23:09:19	0
31316	2	80	0,2	chrt	31276	-21	/usr/sbin/munin	19:35:05	0
27337	2	77	0,2	sleep0	27317	-21	ntpq	21:11:52	0
4060	2	75	0,2	sleep0	4063	-21	chrt	00:38:46	0
19815	2	74	0,2	sleep0	19816	-21	seq	21:49:21	0
5212	2	73	0,2	sleep0	5213	-21	seq	22:15:44	0
29572	2	73	0,2	sleep0	29575	-21	sort	21:15:39	0
20018	2	73	0,2	sleep0	20020	-21	uniq	21:00:35	0
17914	2	73	0,3	sleep0	17915	-21	chrt	20:05:20	0
4118	2	72	0,2	sleep0	4119	-21	seq	20:35:24	0
27294	2	72	0,2	sleep0	27295	-21	chrt	22:00:14	0
31868	2	71	0,2	sleep0	31869	-21	sh	23:43:14	0
2359	2	71	0,1	sleep0	2357	-21	ps	20:31:23	0
10729	2	71	0,1	sleep0	10733	-21	ssh	21:35:54	0
22092	2	66	0,2	sleep0	22093	-21	ld	20:11:00	0
16861	2	65	0,1	sleep0	16862	-21	seq	00:09:28	0
17757	2	63	0,2	sleep0	17758	-21	cat	20:05:02	0
15776	90	62	29,23	cyclictest	12241	-21	if_err_eth2	19:55:40	0
15776	90	61	41,13	cyclictest	28238	-21	ssh	00:26:06	0
15776	90	60	29,12	cyclictest	5083	-21	chrt	21:27:07	0
15776	90	60	27,13	cyclictest	2584	-21	/usr/sbin/munin	23:00:37	0
15776	90	60	26,16	cyclictest	27720	-21	/usr/sbin/munin	20:20:37	0
15776	90	60	26,15	cyclictest	30603	-21	ssh	22:05:17	0
15776	90	59	32,18	cyclictest	8584	-21	ssh	23:56:28	0
15776	90	59	28,23	cyclictest	20861	-21	ssh	23:27:08	0
15776	90	59	27,22	cyclictest	7926	-21	/usr/sbin/munin	21:31:14	0
15776	90	58	31,17	cyclictest	10265	-21	apt-get	20:45:21	0
15776	90	58	27,21	cyclictest	7160	-21	/usr/sbin/munin	20:40:47	0
15776	90	57	33,16	cyclictest	24313	-21	head	20:15:27	0
15776	90	57	32,14	cyclictest	2341	-21	apt-get	19:40:15	0
15776	90	57	26,22	cyclictest	9089	-21	idleruntime	19:50:42	0
15776	90	57	25,13	cyclictest	30815	-21	hddtemp_smartct	20:25:37	0
15776	90	56	26,22	cyclictest	21377	-21	apt	22:40:00	0
15776	90	56	25,13	cyclictest	26512	-21	ntp_states	19:26:15	0
15776	90	56	22,14	cyclictest	14547	-21	ntpq	20:51:07	0
15776	90	54	32,13	cyclictest	5790	-21	df_inode	19:45:31	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