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 Wed Jul 01, 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
28991	2	124	0,2	chrt	28992	-21	ssh	21:37:08	0
5860	2	120	0,5	chrt	5861	-21	chrt	22:40:02	0
4534	2	120	0,3	chrt	4535	-21	runrttasks	21:49:13	0
19589	2	120	0,2	chrt	19591	-21	sh	21:22:59	0
1351	2	119	0,3	chrt	1352	-21	ssh	23:21:08	0
7760	2	118	0,3	chrt	7757	-21	ntpq	19:20:55	0
15435	2	118	0,2	chrt	15431	-21	ntpq	21:16:50	0
32009	2	117	0,2	sleep0	32010	-21	chrt	22:30:33	0
1608	2	117	0,3	chrt	1609	-21	chrt	00:12:03	0
6803	2	113	0,2	chrt	6804	-21	if_eth1	22:41:02	0
11521	2	113	0,3	chrt	11517	-21	ntpq	23:36:23	0
10353	2	113	0,3	chrt	10352	-21	/usr/sbin/munin	00:25:37	0
16967	2	112	0,2	chrt	16968	-21	seq	23:45:16	0
16029	2	112	0,2	chrt	16030	-21	sleep	19:35:17	0
15183	2	112	0,3	chrt	15178	-21	python3	00:32:22	0
5421	2	111	0,3	chrt	5422	-21	date	20:10:04	0
24134	2	111	0,3	chrt	24133	-21	seq	22:18:25	0
22581	2	109	0,2	chrt	22582	-21	sleep	19:45:32	0
3576	2	106	0,3	chrt	3577	-21	sleep	20:58:24	0
29676	2	105	0,2	sleep0	29680	-21	chrt	00:04:12	0
13519	2	104	0,2	chrt	13520	-21	sleep	20:21:49	0
20154	2	103	0,2	chrt	20155	-21	sleep	22:12:15	0
461	2	102	0,3	chrt	462	-21	sh	20:53:21	0
30805	2	102	0,2	chrt	30806	-21	sh	19:57:58	0
6565	2	98	0,2	sleep0	6566	-21	cut	00:20:05	0
5598	2	96	0,2	sleep0	5600	-21	fschecks_count	21:50:52	0
17982	2	96	0,2	sleep0	17983	-21	chrt	20:30:16	0
9355	2	95	0,1	sleep0	9356	-21	apt-get	22:45:15	0
5400	2	92	0,2	sleep0	5401	-21	chrt	21:00:51	0
13988	2	92	0,2	sleep0	13989	-21	cpuspeed	23:40:36	0
4530	2	88	0,1	sleep0	4531	-21	chrt	19:15:49	0
12503	2	82	0,2	sleep0	12504	-21	seq	21:12:29	0
22909	2	81	0,3	sleep0	22910	-21	seq	23:05:31	0
21044	2	80	0,2	sleep0	21045	-21	readlink	20:35:06	0
25877	2	73	0,1	sleep0	25878	-21	if_eth0	22:21:14	0
12046	2	73	0,2	sleep0	12048	-21	awk	22:00:36	0
30148	2	72	8,52	sleep0	30225	-21	fschecks_time	19:05:27	0
4749	2	69	0,1	sleep0	4750	-21	cat	23:26:10	0
25566	2	67	0,2	sleep0	25567	-21	chrt	23:57:22	0
31429	2	66	0,2	sleep0	31430	-21	chrt	21:41:06	0
17141	2	66	0,2	sleep0	17144	-21	wc	22:56:15	0
31716	2	64	0,2	sleep0	31717	-21	seq	00:08:46	0
21528	2	62	0,2	sleep0	21531	-21	cut	21:26:07	0
19365	2	61	0,2	sleep0	19366	-21	cat	23:00:11	0
29976	2	60	3,10	sleep0	29967	-21	ntp_states	22:27:06	0
9986	2	57	0,1	sleep0	9987	-21	chrt	20:16:24	0
10673	2	57	0,2	sleep0	10674	-21	chrt	19:25:45	0
3494	2	55	0,2	sleep0	3496	-21	chrt	19:15:03	0
27542	2	55	3,41	sleep0	27499	-21	apt-get	20:45:20	0
19049	2	55	3,8	sleep0	439	-21	sh	00:38:25	0
16452	2	55	3,7	sleep0	16461	-21	ld	22:06:43	0
12981	2	55	4,43	sleep0	13038	-21	ls	22:50:38	0
32516	2	54	0,2	sleep0	32517	-21	seq	23:19:57	0
27423	2	52	0,1	sleep0	27424	-21	ssh	23:11:29	0
10035	2	52	4,40	sleep0	10027	-21	ntpq	21:57:09	0
6747	2	50	4,37	sleep0	6655	-21	apt-get	00:20:29	0
25830	2	50	0,1	sleep0	25832	-21	sh	21:32:23	0
20515	2	50	5,37	sleep0	20551	-21	aten2.4-expect	23:50:35	0
311	90	44	15,23	cyclictest	0	-21	swapper	23:32:44	0
311	90	43	15,10	cyclictest	16002	-21	ntpq	20:26:03	0
24426	2	43	0,3	chrt	24427	-21	runrttasks	20:40:16	0
9038	2	42	0,2	sleep0	9037	-21	awk	21:06:30	0
311	90	41	4,19	cyclictest	25142	-21	apt-get	19:50:29	0
311	90	40	13,10	cyclictest	436	-21	runrttasks	19:30:43	0
311	90	39	4,9	cyclictest	32253	-21	sort	20:00:35	0
311	90	39	4,18	cyclictest	6763	-21	ntp_states	20:11:13	0
311	90	39	18,13	cyclictest	19356	-21	aten2.4_rfpower	19:40:26	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