OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #7, slot #2

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 100 highest latencies:

System rack7slot2.osadl.org (updated Sun Apr 05, 2026 00:44:12)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1084866	99	112	103,6	cyclictest	1221560	-21	kworker/u4:2+events_unbound	23:18:11	0
1084866	99	112	103,6	cyclictest	1221560	-21	kworker/u4:2+events_unbound	23:18:11	0
1084866	99	82	73,6	cyclictest	1256276	-21	kworker/u4:5+events_unbound	23:58:19	0
1084866	99	70	61,6	cyclictest	1152980	-21	kworker/u4:14+events_unbound	21:52:50	0
1084866	99	69	61,6	cyclictest	1166223	-21	kworker/u4:1+events_unbound	22:07:56	0
1084867	99	68	61,5	cyclictest	1187427	-21	kworker/u4:13+events_unbound	22:35:00	1
1084866	99	67	59,6	cyclictest	1108176	-21	kworker/u4:3+events_unbound	21:27:50	0
1084867	99	65	50,8	cyclictest	1096321	-21	kworker/u4:5-xprtiod	19:55:23	1
1084867	99	63	56,5	cyclictest	1095047	-21	kworker/u4:21+events_unbound	20:05:00	1
1084866	99	62	54,6	cyclictest	1170612	-21	kworker/u4:5+events_unbound	22:17:58	0
1084867	99	61	56,3	cyclictest	1096321	-21	kworker/u4:5+events_unbound	19:52:39	1
1084867	99	61	56,3	cyclictest	1089936	-21	kworker/u4:12+events_unbound	19:27:34	1
1084867	99	61	52,7	cyclictest	1095047	-21	kworker/u4:21+events_unbound	20:37:43	1
1084867	99	61	52,6	cyclictest	1170613	-21	kworker/u4:7+events_unbound	22:38:01	1
1084867	99	61	50,8	cyclictest	1084865	-21	cyclictest	23:25:15	1
1084867	99	61	42,13	cyclictest	1104317	-21	apt-get	20:25:12	1
1084866	99	61	52,6	cyclictest	1234541	-21	kworker/u4:3+events_unbound	23:48:00	0
1084866	99	60	51,7	cyclictest	1096320	-21	kworker/u4:4+events_unbound	20:12:40	0
1084867	99	59	50,6	cyclictest	1222174	-21	kworker/u4:3+events_unbound	23:13:10	1
1084867	99	59	49,8	cyclictest	1105636	-21	kworker/u4:19+events_unbound	21:07:47	1
1084866	99	59	52,5	cyclictest	1144803	-21	kworker/u4:1+events_unbound	21:57:54	0
1084867	99	58	49,6	cyclictest	1243264	-21	kworker/u4:8+events_unbound	23:40:01	1
1084866	99	58	50,6	cyclictest	1097683	-21	kworker/u4:0+events_unbound	20:32:44	0
1084866	99	58	50,5	cyclictest	1143341	-21	cat	21:40:36	0
1084866	99	58	49,6	cyclictest	1074889	-21	kworker/u4:3+events_unbound	19:32:35	0
1084866	99	58	49,6	cyclictest	1074889	-21	kworker/u4:3+events_unbound	19:32:34	0
1084867	99	57	46,7	cyclictest	0	-21	swapper/1	21:15:28	1
1084867	99	57	46,7	cyclictest	0	-21	swapper/1	21:15:27	1
1084866	99	57	50,5	cyclictest	1204820	-21	kworker/u4:7+events_unbound	23:03:09	0
1084866	99	57	49,5	cyclictest	1108614	-21	df_abs	20:40:15	0
1084867	99	56	48,6	cyclictest	1162414	-21	sd-accept	22:02:53	1
1084866	99	56	48,6	cyclictest	1094908	-21	unixbench-2d	19:45:45	0
1084866	99	56	47,7	cyclictest	1204820	-21	kworker/u4:7+events_unbound	22:53:07	0
1084866	99	56	47,7	cyclictest	1198998	-21	kernelversion	22:45:24	0
1084866	99	55	48,5	cyclictest	1209138	-21	kworker/u4:10+events_unbound	22:58:21	0
1084866	99	55	32,20	cyclictest	1099221	-21	latency_hist	20:05:02	0
1084867	99	54	44,7	cyclictest	1281935	-21	kworker/u4:7+events_unbound	00:25:04	1
1084866	99	54	48,4	cyclictest	0	-21	swapper/0	21:30:39	0
1084866	99	54	47,5	cyclictest	1182439	-21	/usr/sbin/munin	22:25:41	0
1084867	99	53	45,6	cyclictest	1170611	-21	kworker/u4:4+events_unbound	22:12:57	1
1084867	99	53	43,8	cyclictest	1255110	-21	timerwakeupswit	23:50:41	1
1084867	99	53	43,8	cyclictest	1142458	-21	aten_r7power_po	21:40:14	1
1084866	99	53	39,9	cyclictest	1110774	-21	modprobe	20:49:59	0
1084867	99	52	45,5	cyclictest	1275562	-21	aten_r7power_en	00:15:21	1
1084867	99	52	45,5	cyclictest	1176937	-21	apt-key	22:20:02	1
1084866	99	52	46,4	cyclictest	1109475	-21	kworker/u4:6+events_unbound	22:10:19	0
1084866	99	52	44,6	cyclictest	1271175	-21	aten_r7power_cu	00:10:14	0
1084866	99	52	44,5	cyclictest	0	-21	swapper/0	21:10:40	0
1084867	99	51	44,5	cyclictest	1149431	-21	sshd	21:47:57	1
1084867	99	51	43,6	cyclictest	1280111	-21	fschecks_count	00:20:21	1
1084867	99	51	43,5	cyclictest	1134019	-21	fschecks_time	21:30:21	1
1084867	99	51	41,7	cyclictest	1097686	-21	kworker/u4:3+events_unbound	20:20:00	1
1084866	99	51	44,5	cyclictest	1125434	-21	gltestperf	21:20:19	0
1084866	99	51	42,6	cyclictest	53	-21	kswapd0	23:45:00	0
1084866	99	51	41,8	cyclictest	1288755	-21	fschecks_time	00:30:21	0
1084867	99	50	43,5	cyclictest	1215263	-21	date	23:05:00	1
1084867	99	50	43,5	cyclictest	1099603	-21	fschecks_count	20:05:23	1
1084867	99	50	42,5	cyclictest	1296800	-21	latency_hist	00:40:01	1
1084867	99	50	40,7	cyclictest	1113067	-21	timerandwakeup	20:55:37	1
1084866	99	50	44,4	cyclictest	1177528	-21	fschecks_time	22:20:30	0
1084866	99	50	40,7	cyclictest	1016868	-21	kworker/u4:8+events_unbound	19:12:33	0
1084866	99	50	29,18	cyclictest	0	-21	swapper/0	00:30:01	0
1084867	99	49	42,5	cyclictest	1258890	-21	ldconfig	23:55:26	1
1084867	99	49	42,5	cyclictest	0	-21	swapper/1	21:50:30	1
1084867	99	49	39,8	cyclictest	1111020	-21	aten_r7power_en	20:50:15	1
1084866	99	49	42,5	cyclictest	1186728	-21	cat	22:30:38	0
1084866	99	49	41,6	cyclictest	1096320	-21	kworker/u4:4+events_unbound	20:07:40	0
1084866	99	49	30,17	cyclictest	1220793	-21	mailstats	23:10:38	0
1084866	99	49	28,18	cyclictest	0	-21	swapper/0	00:35:25	0
1084867	99	48	43,4	cyclictest	1138520	-21	uname	21:35:22	1
1084867	99	48	41,5	cyclictest	1164354	-21	fschecks_count	22:05:20	1
1084867	99	48	39,6	cyclictest	1091517	-21	aten_r7power_po	19:35:16	1
1084867	99	48	38,7	cyclictest	1091368	-21	latency_hist	19:35:02	1
1084867	99	48	38,7	cyclictest	1091368	-21	latency_hist	19:35:01	1
1084866	99	48	41,5	cyclictest	1262606	-21	aten_r7power_cu	00:00:16	0
1084866	99	48	41,5	cyclictest	1229315	-21	cut	23:20:37	0
1084866	99	48	40,6	cyclictest	1149217	-21	kworker/u4:13+events_unbound	21:47:52	0
1084866	99	48	34,9	cyclictest	1096348	-21	modprobe	19:55:00	0
1084867	99	47	41,4	cyclictest	1198918	-21	gltestperf	22:45:21	1
1084867	99	47	38,7	cyclictest	1245800	-21	fschecks_time	23:40:21	1
1084867	99	47	38,6	cyclictest	1125259	-21	fschecks_count	21:20:19	1
1084867	99	47	37,8	cyclictest	1215822	-21	sort	23:05:21	1
1084866	99	47	41,4	cyclictest	1241061	-21	acpi	23:35:11	0
1084866	99	47	40,5	cyclictest	1195149	-21	mailstats	22:40:36	0
1084866	99	47	39,6	cyclictest	1097685	-21	kworker/u4:2+events_unbound	21:17:48	0
1084866	99	47	39,6	cyclictest	1097685	-21	kworker/u4:2+events_unbound	21:17:48	0
1084866	99	47	39,5	cyclictest	1236600	-21	latency_hist	23:30:00	0
1084866	99	47	37,8	cyclictest	1251970	-21	kworker/u4:2+events_unbound	23:50:37	0
1084866	99	47	35,9	cyclictest	1276744	-21	unixbench_singl	00:15:45	0
1084867	99	46	39,5	cyclictest	1084865	-21	cyclictest	22:40:33	1
1084867	99	46	38,6	cyclictest	1204673	-21	sshd	22:51:46	1
1084867	99	46	38,6	cyclictest	0	-21	swapper/1	23:30:27	1
1084867	99	46	37,7	cyclictest	1155704	-21	fschecks_time	21:55:18	1
1084867	99	46	37,7	cyclictest	1116378	-21	aten_r7power_vo	21:10:17	1
1084867	99	46	37,7	cyclictest	1095208	-21	latency_hist	19:50:01	1
1084866	99	46	39,5	cyclictest	1266800	-21	apt-get	00:05:13	0
1084866	99	46	37,6	cyclictest	1237340	-21	/usr/sbin/munin	23:30:21	0
1084866	99	46	34,9	cyclictest	53	-21	kswapd0	23:05:35	0
1084867	99	45	38,5	cyclictest	1288457	-21	aten_r7power_en	00:30:17	1
1084867	99	45	38,5	cyclictest	1129347	-21	/usr/sbin/munin	21:25:16	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2019-05-28 - 00:17