OSADL QA Farm on Real-time of Mainline Linux

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

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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 rack7slot2.osadl.org (updated Wed Apr 08, 2026 00:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
989029	99	95	89,4	cyclictest	992843	-21	kworker/u4:12+events_unbound	19:51:25	0
989029	99	95	89,4	cyclictest	992843	-21	kworker/u4:12+events_unbound	19:51:24	0
989029	99	95	88,5	cyclictest	1014647	-21	kworker/u4:3+events_unbound	20:51:33	0
989029	99	92	86,4	cyclictest	1000577	-21	kworker/u4:9+events_unbound	20:11:26	0
989031	99	88	76,9	cyclictest	1035110	-21	kworker/u4:8+events_unbound	21:26:39	1
989029	99	75	58,13	cyclictest	53	-21	kswapd0	23:15:11	0
989029	99	74	6,44	cyclictest	1147165	-21	ssh	23:35:16	0
989031	99	70	61,6	cyclictest	996740	-21	kworker/u4:20+events_unbound	19:45:01	1
989029	99	70	58,7	cyclictest	0	-21	swapper/0	22:40:37	0
989029	99	70	58,7	cyclictest	0	-21	swapper/0	22:40:36	0
989029	99	68	62,4	cyclictest	991532	-21	kworker/u4:7+events_unbound	19:17:01	0
989031	99	67	59,6	cyclictest	996740	-21	kworker/u4:20+events_unbound	20:05:00	1
989031	99	66	52,8	cyclictest	0	-21	swapper/1	22:25:37	1
989029	99	65	55,7	cyclictest	1084200	-21	kworker/u4:0+events_unbound	22:36:53	0
989031	99	64	57,5	cyclictest	1175204	-21	kworker/u4:8+events_unbound	00:07:14	1
989029	99	63	44,17	cyclictest	1046568	-21	ssh	21:40:00	0
989031	99	62	39,17	cyclictest	1024541	-21	apt-get	21:15:11	1
989031	99	61	41,9	cyclictest	1081523	-21	latency_hist	22:20:01	1
989029	99	59	47,6	cyclictest	985239	-21	kworker/u4:3+events_unbound	19:30:41	0
989029	99	59	41,16	cyclictest	989028	-21	cyclictest	23:10:24	0
989029	99	58	50,6	cyclictest	1055876	-21	fschecks_count	21:50:16	0
989031	99	57	40,13	cyclictest	1010283	-21	ntpq	20:30:24	1
989029	99	57	50,5	cyclictest	1192820	-21	kworker/u4:10+events_unbound	00:36:42	0
989031	99	56	49,5	cyclictest	991530	-21	kworker/u4:4+events_unbound	19:30:01	1
989031	99	56	49,5	cyclictest	1152458	-21	sh	23:40:38	1
989031	99	56	45,8	cyclictest	1029272	-21	df	21:20:16	1
989031	99	56	33,18	cyclictest	1182668	-21	ssh	00:15:31	1
989031	99	56	32,19	cyclictest	1138470	-21	apt-get	23:25:14	1
989029	99	56	16,35	cyclictest	256	50	irq/23-42890000.ethernet	21:40:10	0
989031	99	55	32,11	cyclictest	1100255	-21	ssh	22:40:37	1
989031	99	55	32,11	cyclictest	1100255	-21	ssh	22:40:37	1
989029	99	55	48,5	cyclictest	1004466	-21	idleruntime-cro	20:10:01	0
989031	99	54	43,7	cyclictest	1099055	-21	sort	22:40:02	1
989031	99	54	42,8	cyclictest	991151	-21	ps	19:15:34	1
989031	99	54	33,17	cyclictest	1082573	-21	ssh	22:20:28	1
989031	99	54	33,15	cyclictest	1051186	-21	apt-get	21:45:14	1
989031	99	54	16,13	cyclictest	1165736	-21	ssh	23:55:41	1
989029	99	54	45,4	cyclictest	0	-21	swapper/0	22:52:45	0
989031	99	53	46,5	cyclictest	1073785	-21	diskmemload	22:10:28	1
989031	99	53	34,14	cyclictest	1121040	-21	apt-get	23:05:13	1
989031	99	53	33,13	cyclictest	1056412	-21	ntpq	21:50:33	1
989031	99	53	17,15	cyclictest	1187966	-21	ssh	00:21:22	1
989031	99	53	17,10	cyclictest	1070827	-21	ssh	22:06:57	1
989031	99	53	17,10	cyclictest	1019962	-21	ssh	21:10:02	1
989031	99	53	16,12	cyclictest	1118929	-21	ssh	23:02:06	1
989031	99	53	15,14	cyclictest	1158246	-21	ssh	23:47:23	1
989031	99	53	15,13	cyclictest	1062151	-21	ssh	21:57:04	1
989031	99	53	13,14	cyclictest	1049787	-21	ssh	21:43:13	1
989029	99	53	46,5	cyclictest	1119016	-21	kworker/u4:0+events_unbound	23:03:01	0
989031	99	52	45,5	cyclictest	995720	-21	aten_r7power_cu	19:35:19	1
989031	99	52	32,16	cyclictest	1064302	-21	ssh	22:00:11	1
989031	99	52	18,10	cyclictest	1044271	-21	ssh	21:36:31	1
989031	99	52	17,11	cyclictest	1191258	-21	ntpq	00:25:29	1
989031	99	52	17,11	cyclictest	1148962	-21	ssh	23:36:27	1
989031	99	52	17,11	cyclictest	1111276	-21	ssh	22:53:47	1
989031	99	52	15,13	cyclictest	1180009	-21	ssh	00:12:31	1
989031	99	52	15,13	cyclictest	1180009	-21	ssh	00:12:30	1
989031	99	52	15,13	cyclictest	1146777	-21	ssh	23:34:55	1
989031	99	52	13,15	cyclictest	1001422	-21	ld	19:55:32	1
989029	99	52	7,31	cyclictest	1038680	-21	ssh	21:30:27	0
989029	99	52	46,4	cyclictest	1190236	-21	latency_hist	00:25:00	0
989029	99	52	45,5	cyclictest	1008273	-21	kworker/u4:14+events_unbound	20:56:03	0
989029	99	52	40,8	cyclictest	999338	-21	sh	19:50:00	0
989029	99	52	13,36	cyclictest	1121789	-21	ssh	23:05:28	0
989031	99	51	37,11	cyclictest	0	-21	swapper/1	23:15:20	1
989031	99	51	26,11	cyclictest	995376	-21	systemd	19:31:19	1
989031	99	51	18,9	cyclictest	1163178	-21	ssh	23:53:20	1
989031	99	51	17,10	cyclictest	1041739	-21	ssh	21:34:30	1
989031	99	51	14,16	cyclictest	1126167	-21	ntpq	23:10:30	1
989031	99	51	14,15	cyclictest	1114014	-21	ssh	22:56:13	1
989031	99	51	14,15	cyclictest	1104431	-21	ld	22:45:30	1
989031	99	51	14,12	cyclictest	1171904	-21	ssh	00:03:27	1
989031	99	51	13,14	cyclictest	1197094	-21	ssh	00:32:06	1
989031	99	51	13,14	cyclictest	1137657	-21	ssh	23:24:11	1
989029	99	51	44,5	cyclictest	995383	-21	kworker/u4:18+events_unbound	20:20:00	0
989029	99	51	44,4	cyclictest	0	-21	swapper/0	23:34:47	0
989029	99	51	43,6	cyclictest	1139375	-21	ld	23:25:37	0
989031	99	50	13,11	cyclictest	1092303	-21	ssh	22:31:19	1
989031	99	50	12,14	cyclictest	1201855	-21	ssh	00:37:49	1
989029	99	50	43,5	cyclictest	1153793	-21	kworker/u4:4+events_unbound	23:47:00	0
989029	99	50	43,5	cyclictest	1008273	-21	kworker/u4:14+events_unbound	20:40:02	0
989029	99	50	38,5	cyclictest	985239	-21	kworker/u4:3+events_unbound	20:21:00	0
989031	99	49	39,7	cyclictest	990294	-21	idleruntime-cro	19:15:00	1
989029	99	49	42,5	cyclictest	1008273	-21	kworker/u4:14+events_unbound	20:45:01	0
989029	99	49	40,7	cyclictest	378	-21	dbus-daemon	23:22:01	0
989029	99	49	40,5	cyclictest	989028	-21	cyclictest	22:25:34	0
989029	99	49	39,7	cyclictest	1051359	-21	aten_r7power_vo	21:45:16	0
989029	99	49	38,9	cyclictest	0	-21	swapper/0	21:20:29	0
989031	99	48	39,6	cyclictest	1004193	-21	timerandwakeup	20:05:36	1
989031	99	48	30,15	cyclictest	1019290	-21	ntpq	21:05:29	1
989031	99	48	11,13	cyclictest	1007775	-21	ntpq	20:20:28	1
989029	99	48	43,4	cyclictest	1018485	-21	kworker/u4:16+events_unbound	21:08:59	0
989029	99	48	42,4	cyclictest	1006965	-21	kworker/u4:13+events_unbound	20:35:02	0
989029	99	48	41,5	cyclictest	992843	-21	kworker/u4:12+events_unbound	19:55:01	0
989029	99	48	40,6	cyclictest	1078411	-21	mailstats	22:15:35	0
989029	99	48	39,7	cyclictest	1068454	-21	diskmemload	22:05:02	0
989029	99	48	36,10	cyclictest	1173133	-21	apt-key	00:05:04	0
989029	99	48	31,15	cyclictest	1175204	-21	kworker/u4:8-xprtiod	00:15:01	0
989029	99	48	31,15	cyclictest	1175204	-21	kworker/u4:8-xprtiod	00:15:01	0
989031	99	47	35,8	cyclictest	0	-21	swapper/1	20:35:30	1
989031	99	47	12,10	cyclictest	1000232	-21	ps	19:50:35	1
989031	99	47	12,10	cyclictest	1000232	-21	ps	19:50:34	1
989029	99	47	41,4	cyclictest	1104178	-21	if_eth0	22:45:21	0
989029	99	47	40,5	cyclictest	992843	-21	kworker/u4:12+events_unbound	19:22:02	0
989029	99	47	37,7	cyclictest	1170095	-21	unixbench-2d	00:00:41	0
989029	99	47	35,8	cyclictest	0	-21	swapper/0	23:55:35	0
989031	99	46	39,5	cyclictest	989028	-21	cyclictest	20:26:30	1
989031	99	46	12,10	cyclictest	1013411	-21	/usr/sbin/munin	20:45:00	1
989029	99	46	40,4	cyclictest	1004418	-21	kworker/u4:0+events_unbound	21:02:00	0
989029	99	46	38,6	cyclictest	1006965	-21	kworker/u4:13+events_unbound	20:35:59	0
989029	99	46	38,5	cyclictest	1082208	-21	fschecks_time	22:20:20	0
989029	99	46	37,7	cyclictest	1090839	-21	/usr/sbin/munin	22:30:19	0
989029	99	46	36,8	cyclictest	1153716	-21	systemd	23:42:04	0
989029	99	46	28,15	cyclictest	0	-21	swapper/0	00:20:01	0
989031	99	45	38,5	cyclictest	1016378	-21	fschecks_count	20:55:20	1
989031	99	45	35,7	cyclictest	1014375	-21	switchtime	20:45:37	1
989031	99	45	29,10	cyclictest	1015415	-21	ntpq	20:50:26	1
989029	99	45	39,4	cyclictest	996741	-21	kworker/u4:21+events_unbound	20:01:01	0
989029	99	45	39,4	cyclictest	53	-21	kswapd0	22:55:11	0
989029	99	45	38,5	cyclictest	1024670	-21	aten_r7power_en	21:15:14	0
989029	99	45	38,5	cyclictest	1020597	-21	gltestperf	21:10:22	0
989031	99	44	29,10	cyclictest	1017998	-21	ntpq	21:00:27	1
989031	99	44	25,14	cyclictest	1005673	-21	users	20:10:39	1
989029	99	44	38,4	cyclictest	1070837	-21	kworker/u4:5+events_unbound	22:09:42	0
989029	99	44	36,6	cyclictest	997008	-21	aten_r7power_cu	19:40:15	0
989029	99	44	33,5	cyclictest	985239	-21	kworker/u4:3+events_unbound	20:25:26	0
989029	99	44	21,20	cyclictest	0	-21	swapper/0	21:55:34	0
989029	99	44	11,24	cyclictest	0	-21	swapper/0	22:14:03	0
989029	99	43	37,4	cyclictest	996805	-21	basename	19:40:01	0
989029	99	43	34,7	cyclictest	1034627	-21	timerandwakeup	21:25:39	0
989029	99	43	14,19	cyclictest	17	1	rcu_preempt	23:50:17	0
989031	99	42	34,5	cyclictest	1007014	-21	idleruntime-cro	20:19:59	1
989031	99	42	30,8	cyclictest	0	-21	swapper/1	19:10:06	1
989031	99	42	28,11	cyclictest	992376	-21	ntpq	19:20:30	1
989031	99	42	28,10	cyclictest	998778	-21	ntpq	19:45:23	1
989029	99	42	7,5	cyclictest	15	1	ktimers/0	19:10:11	0
989029	99	42	35,5	cyclictest	1191635	-21	timerandwakeup	00:25:39	0
989029	99	41	35,4	cyclictest	985239	-21	kworker/u4:3+events_unbound	19:26:02	0
989029	99	41	34,5	cyclictest	1195961	-21	threads	00:30:39	0
989029	99	37	5,17	cyclictest	989030	-21	modprobe	19:10:00	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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