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 highest latencies:

System rack7slot2.osadl.org (updated Sun Dec 07, 2025 00:44:07)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1053798	99	129	121,6	cyclictest	1153577	-21	kworker/u4:4+events_unbound	22:43:08	0
1053798	99	121	113,6	cyclictest	1080978	-21	kworker/u4:1+events_unbound	21:12:46	0
1053798	99	120	113,5	cyclictest	1172671	-21	kworker/u4:24+events_unbound	23:08:12	0
1053798	99	120	103,6	cyclictest	1102440	-21	kworker/u4:2+events_unbound	21:32:59	0
1053798	99	117	110,5	cyclictest	1073177	-21	kworker/u4:4+events_unbound	20:27:35	0
1053798	99	116	109,5	cyclictest	1117291	-21	kworker/u4:1+events_unbound	22:13:03	0
1053798	99	116	109,5	cyclictest	1064061	-21	kworker/u4:10+events_unbound	20:07:46	0
1053798	99	113	105,6	cyclictest	1064061	-21	kworker/u4:10+events_unbound	21:07:45	0
1053798	99	112	105,5	cyclictest	1214134	-21	kworker/u4:0+events_unbound	00:08:22	0
1053798	99	111	104,5	cyclictest	1073177	-21	kworker/u4:4+events_unbound	20:37:50	0
1053798	99	110	102,6	cyclictest	1109940	-21	kworker/u4:7+events_unbound	22:18:05	0
1053798	99	107	99,6	cyclictest	1080980	-21	kworker/u4:3+events_unbound	20:57:52	0
1053798	99	99	92,5	cyclictest	1113152	-21	kworker/u4:8+events_unbound	21:58:01	0
1053798	99	97	90,5	cyclictest	1194913	-21	kworker/u4:10+events_unbound	23:43:18	0
1053798	99	95	88,5	cyclictest	1071861	-21	kworker/u4:0+events_unbound	20:42:51	0
1053798	99	94	87,5	cyclictest	1083574	-21	kworker/u4:13+events_unbound	21:22:58	0
1053798	99	94	87,5	cyclictest	1083574	-21	kworker/u4:13+events_unbound	21:22:58	0
1053798	99	94	87,5	cyclictest	1073177	-21	kworker/u4:4+events_unbound	20:22:32	0
1053798	99	93	86,5	cyclictest	1037177	-21	kworker/u4:13+events_unbound	20:17:32	0
1053798	99	91	84,5	cyclictest	1060188	-21	kworker/u4:4+events_unbound	20:02:45	0
1053798	99	90	82,6	cyclictest	1194913	-21	kworker/u4:10+events_unbound	23:53:21	0
1053800	99	87	81,4	cyclictest	1060185	-21	kworker/u4:1+events_unbound	19:37:20	1
1053798	99	86	79,5	cyclictest	1037177	-21	kworker/u4:13+events_unbound	19:27:19	0
1053800	99	85	76,6	cyclictest	1109940	-21	kworker/u4:7+events_unbound	21:42:53	1
1053798	99	85	78,5	cyclictest	1210209	-21	kworker/u4:2+events_unbound	00:38:31	0
1053798	99	85	78,5	cyclictest	1210209	-21	kworker/u4:2+events_unbound	00:38:31	0
1053798	99	83	75,6	cyclictest	1060186	-21	kworker/u4:2+events_unbound	19:32:19	0
1053798	99	81	74,5	cyclictest	1080982	-21	kworker/u4:6+events_unbound	20:52:40	0
1053798	99	81	74,5	cyclictest	1055022	-21	kworker/u4:10+events_unbound	19:12:09	0
1053800	99	80	72,6	cyclictest	1113153	-21	kworker/u4:11+events_unbound	22:03:03	1
1053800	99	80	72,6	cyclictest	1113153	-21	kworker/u4:11+events_unbound	22:03:03	1
1053798	99	79	61,8	cyclictest	1109940	-21	kworker/u4:7+events_unbound	22:20:02	0
1053798	99	75	61,6	cyclictest	1080982	-21	kworker/u4:6+events_unbound	21:15:02	0
1053800	99	74	63,7	cyclictest	1210209	-21	kworker/u4:2+events_unbound	00:03:23	1
1053798	99	74	67,5	cyclictest	1064062	-21	kworker/u4:11+events_unbound	19:57:26	0
1053798	99	74	67,5	cyclictest	1064061	-21	kworker/u4:10+events_unbound	19:47:44	0
1053800	99	72	62,8	cyclictest	1106163	-21	kworker/u4:10+events_unbound	21:52:56	1
1053798	99	69	64,3	cyclictest	15	1	ktimers/0	23:12:04	0
1053798	99	69	52,6	cyclictest	1117290	-21	kworker/u4:0+events_unbound	22:03:41	0
1053798	99	69	52,6	cyclictest	1117290	-21	kworker/u4:0+events_unbound	22:03:41	0
1053800	99	68	59,7	cyclictest	1172675	-21	kworker/u4:28+events_unbound	23:13:14	1
1053798	99	68	62,4	cyclictest	1037176	-21	kworker/u4:12+events_unbound	19:17:41	0
1053800	99	67	58,7	cyclictest	1191077	-21	kworker/u4:7+events_unbound	23:38:19	1
1053800	99	65	59,4	cyclictest	27	1	ktimers/1	19:31:44	1
1053800	99	65	59,4	cyclictest	1217455	-21	kworker/u4:12+events_unbound	00:38:29	1
1053800	99	65	59,4	cyclictest	1217455	-21	kworker/u4:12+events_unbound	00:38:29	1
1053800	99	64	54,7	cyclictest	1202501	-21	kworker/u4:6+events_unbound	23:58:21	1
1053798	99	64	54,7	cyclictest	1232255	-21	kworker/u4:4+events_unbound	00:28:27	0
1053798	99	62	54,6	cyclictest	1083575	-21	kworker/u4:14+events_unbound	21:40:03	0
1053798	99	59	41,14	cyclictest	53	-21	kswapd0	00:30:10	0
1053800	99	57	47,7	cyclictest	1118894	-21	aten_r7power_en	21:55:15	1
1053800	99	57	45,7	cyclictest	0	-21	swapper/1	23:45:36	1
1053798	99	57	44,6	cyclictest	990584	-21	kworker/u4:1+events_unbound	19:21:02	0
1053800	99	56	16,12	cyclictest	1062989	-21	apt-get	19:45:14	1
1053798	99	56	49,5	cyclictest	1102439	-21	kworker/u4:1+events_unbound	21:36:36	0
1053798	99	56	48,6	cyclictest	1157311	-21	kworker/u4:15+events_unbound	22:48:08	0
1053798	99	56	44,10	cyclictest	1127537	-21	vmstat	22:05:42	0
1053798	99	56	34,19	cyclictest	1212328	-21	fschecks_count	00:00:21	0
1053800	99	55	43,10	cyclictest	1186038	-21	fschecks_count	23:25:21	1
1053800	99	55	41,10	cyclictest	53	-21	kswapd0	22:40:09	1
1053800	99	54	13,16	cyclictest	1098515	-21	ssh	21:26:47	1
1053798	99	54	47,5	cyclictest	1172675	-21	kworker/u4:28+events_unbound	23:25:03	0
1053800	99	53	46,5	cyclictest	1053797	-21	cyclictest	21:17:46	1
1053800	99	53	43,7	cyclictest	1130411	-21	fschecks_time	22:10:23	1
1053800	99	53	42,9	cyclictest	1065584	-21	latency_hist	19:55:01	1
1053800	99	53	42,8	cyclictest	1134681	-21	timerandwakeup	22:15:40	1
1053800	99	53	37,11	cyclictest	0	-21	swapper/1	23:50:35	1
1053798	99	53	47,4	cyclictest	257	50	irq/23-42890000.ethernet	23:35:30	0
1053798	99	53	43,4	cyclictest	1187873	-21	kworker/u4:3+events_unbound	23:48:37	0
1053800	99	52	44,6	cyclictest	1047	-21	sshd	19:27:17	1
1053800	99	52	38,11	cyclictest	0	-21	swapper/1	00:25:39	1
1053800	99	52	36,9	cyclictest	1074495	-21	kworker/u4:16	20:30:00	1
1053800	99	52	2,35	cyclictest	1190028	-21	ssh	23:30:26	1
1053800	99	52	21,9	cyclictest	0	-21	swapper/1	21:45:40	1
1053800	99	52	12,15	cyclictest	1179691	-21	ssh	23:16:13	1
1053800	99	52	10,15	cyclictest	1105076	-21	mailstats	21:35:41	1
1053800	99	51	44,5	cyclictest	1102440	-21	kworker/u4:2+events_unbound	21:32:51	1
1053800	99	51	43,6	cyclictest	1061471	-21	kworker/u4:7+events_unbound	20:00:00	1
1053800	99	51	42,7	cyclictest	1070590	-21	systemd	20:12:46	1
1053800	99	51	39,7	cyclictest	1140979	-21	ssh	22:25:20	1
1053800	99	51	29,17	cyclictest	1148206	-21	apt-get	22:35:11	1
1053800	99	51	13,12	cyclictest	1127083	-21	uname	22:05:35	1
1053800	99	51	12,10	cyclictest	1147472	-21	ssh	22:34:07	1
1053798	99	51	44,5	cyclictest	1111643	-21	aten_r7power_po	21:45:16	0
1053800	99	50	41,6	cyclictest	1223848	-21	gltestperf	00:15:22	1
1053800	99	50	40,7	cyclictest	1158129	-21	kthreadd	22:48:08	1
1053800	99	50	20,9	cyclictest	0	-21	swapper/1	23:20:30	1
1053800	99	50	11,11	cyclictest	1221033	-21	ssh	00:11:00	1
1053800	99	50	10,12	cyclictest	1095270	-21	ssh	21:22:45	1
1053800	99	50	10,12	cyclictest	1095270	-21	ssh	21:22:44	1
1053798	99	50	41,7	cyclictest	1083587	-21	systemd	21:02:51	0
1053798	99	50	32,8	cyclictest	1117291	-21	kworker/u4:1+events_unbound	21:54:21	0
1053800	99	49	9,15	cyclictest	1086612	-21	ssh	21:10:52	1
1053800	99	49	38,7	cyclictest	1216980	-21	unixbench_multi	00:05:42	1
1053800	99	49	34,10	cyclictest	1228221	-21	grep	00:20:39	1
1053800	99	49	11,14	cyclictest	1200167	-21	ssh	23:44:38	1
1053800	99	49	11,14	cyclictest	1165749	-21	ssh	22:58:13	1
1053800	99	49	10,14	cyclictest	1170623	-21	ssh	23:05:04	1
1053798	99	49	42,5	cyclictest	1083575	-21	kworker/u4:14+events_unbound	21:27:50	0
1053798	99	49	42,5	cyclictest	1071861	-21	kworker/u4:0+events_unbound	20:46:42	0
1053798	99	49	42,5	cyclictest	1062779	-21	kworker/u4:8+events_unbound	20:34:42	0
1053798	99	49	41,6	cyclictest	1180272	-21	kworker/u4:5+events_unbound	23:19:36	0
1053798	99	49	41,6	cyclictest	1165719	-21	systemd	22:58:11	0
1053798	99	49	30,16	cyclictest	0	-21	swapper/0	00:15:29	0
1053798	99	49	27,8	cyclictest	1190420	-21	timerandwakeup	23:30:39	0
1053800	99	48	9,14	cyclictest	1170305	-21	ssh	23:04:47	1
1053800	99	48	41,5	cyclictest	1159502	-21	aten_r7power_po	22:50:16	1
1053800	99	48	39,6	cyclictest	1070850	-21	aten_r7power_en	20:15:17	1
1053800	99	48	38,7	cyclictest	1082763	-21	fschecks_count	21:00:20	1
1053800	99	48	38,6	cyclictest	0	-21	swapper/1	00:30:09	1
1053800	99	48	11,15	cyclictest	1140348	-21	sh	22:24:30	1
1053798	99	48	42,4	cyclictest	1208353	-21	/usr/sbin/munin	23:55:17	0
1053798	99	48	37,7	cyclictest	0	-21	swapper/0	22:35:29	0
1053798	99	48	32,7	cyclictest	1142434	-21	kworker/u4:11+events_unbound	22:26:37	0
1053798	99	47	39,5	cyclictest	1065291	-21	unixbench_singl	19:50:39	0
1053800	99	46	35,9	cyclictest	37	-21	kcompactd0	20:30:37	1
1053800	99	46	35,7	cyclictest	0	-21	swapper/1	20:45:33	1
1053800	99	46	10,11	cyclictest	1072753	-21	ntpq	20:20:33	1
1053798	99	46	37,6	cyclictest	1148101	-21	ssh	22:35:02	0
1053798	99	46	34,9	cyclictest	257	50	irq/23-42890000.ethernet	00:20:29	0
1053800	99	45	9,15	cyclictest	1075951	-21	apt-get	20:35:12	1
1053800	99	45	35,7	cyclictest	1085055	-21	latency_hist	21:10:02	1
1053798	99	45	38,5	cyclictest	1182940	-21	mailstats	23:20:39	0
1053798	99	45	35,7	cyclictest	1160650	-21	unixbench_singl	22:50:40	0
1053798	99	45	30,6	cyclictest	1165022	-21	kworker/u4:10+events_unbound	23:04:30	0
1053800	99	44	36,5	cyclictest	1056809	-21	fschecks_count	19:20:19	1
1053800	99	44	31,8	cyclictest	0	-21	swapper/1	19:20:01	1
1053798	99	44	38,4	cyclictest	1060186	-21	kworker/u4:2+events_unbound	19:35:03	0
1053798	99	44	32,7	cyclictest	1069518	-21	aten2__	20:10:19	0
1053800	99	43	7,13	cyclictest	1061933	-21	diskstats	19:40:19	1
1053800	99	43	6,10	cyclictest	1067165	-21	df_inode	20:00:19	1
1053800	99	43	32,6	cyclictest	0	-21	swapper/1	20:40:34	1
1053800	99	43	29,10	cyclictest	0	-21	swapper/1	20:55:38	1
1053800	99	43	17,9	cyclictest	1053718	-21	kworker/u4:2+xprtiod	19:11:44	1
1053798	99	43	36,5	cyclictest	1062779	-21	kworker/u4:8+events_unbound	19:44:30	0
1053798	99	43	36,4	cyclictest	1219692	-21	aten_r7power_cu	00:10:18	0
1053800	99	42	26,12	cyclictest	1068227	-21	apt-get	20:05:12	1
1053800	99	41	5,13	cyclictest	1079907	-21	apt-get	20:50:17	1
1053800	99	35	26,7	cyclictest	0	-21	swapper/1	19:10:01	1
1053798	99	34	6,20	cyclictest	1053797	-21	cyclictest	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