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 Wed Feb 25, 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
1207898	99	107	96,8	cyclictest	1272133	-21	kworker/u4:4+events_unbound	22:07:11	0
1207898	99	96	88,6	cyclictest	1410998	-21	kworker/u4:9+events_unbound	00:27:39	0
1207898	99	94	85,7	cyclictest	1319566	-21	kworker/u4:4+events_unbound	22:52:19	0
1207898	99	83	75,5	cyclictest	1302518	-21	kworker/u4:8+events_unbound	22:22:13	0
1207898	99	82	74,6	cyclictest	1376215	-21	kworker/u4:4+events_unbound	00:17:37	0
1207898	99	79	69,7	cyclictest	1371797	-21	kworker/u4:5+events_unbound	00:07:35	0
1207898	99	78	50,24	cyclictest	54	-21	kswapd0	22:55:11	0
1207898	99	74	66,6	cyclictest	1209124	-21	kworker/u4:6+events_unbound	21:05:01	0
1207899	99	73	66,5	cyclictest	1406571	-21	kworker/u4:8+events_unbound	00:22:37	1
1207899	99	73	5,48	cyclictest	1269707	-21	ssh	21:45:16	1
1207899	99	72	36,33	cyclictest	0	-21	swapper/1	00:00:35	1
1207898	99	72	64,6	cyclictest	1380609	-21	kworker/u4:10+events_unbound	00:02:34	0
1207898	99	72	52,14	cyclictest	1207895	-21	cyclictest	23:37:44	0
1207898	99	71	60,8	cyclictest	1369696	-21	aten2__	23:40:16	0
1207899	99	70	3,19	cyclictest	1244113	-21	ssh	21:15:25	1
1207899	99	69	4,28	cyclictest	1383531	-21	ssh	23:55:36	1
1207899	99	69	4,28	cyclictest	1383531	-21	ssh	23:55:36	1
1207898	99	69	55,11	cyclictest	1263273	-21	kworker/u4:9+events_unbound	21:42:06	0
1207898	99	69	5,17	cyclictest	1239029	-21	ssh	21:10:11	0
1207899	99	68	46,14	cyclictest	1239027	-21	sh	21:10:13	1
1207899	99	68	4,17	cyclictest	1296687	-21	ntpq	22:15:34	1
1207899	99	68	34,30	cyclictest	0	-21	swapper/1	00:10:23	1
1207898	99	68	53,6	cyclictest	1337232	-21	kworker/u4:5+events_unbound	23:09:59	0
1207899	99	67	30,33	cyclictest	0	-21	swapper/1	21:35:14	1
1207899	99	67	30,33	cyclictest	0	-21	swapper/1	21:35:14	1
1207898	99	67	59,6	cyclictest	1267731	-21	kworker/u4:0+events_unbound	21:52:07	0
1207898	99	67	58,7	cyclictest	1349820	-21	kworker/u4:11+events_unbound	23:17:25	0
1207898	99	67	58,7	cyclictest	1349820	-21	kworker/u4:11+events_unbound	23:17:24	0
1207899	99	66	34,29	cyclictest	1237719	-21	aten_r7power_po	21:05:16	1
1207898	99	66	60,4	cyclictest	1236029	-21	kworker/u4:4+events_unbound	21:10:01	0
1207899	99	65	42,13	cyclictest	54	-21	kswapd0	23:50:09	1
1207899	99	65	40,22	cyclictest	1314395	-21	ssh	22:35:39	1
1207899	99	65	34,28	cyclictest	1223326	-21	grep	20:10:01	1
1207898	99	65	57,6	cyclictest	1245475	-21	kworker/u4:1+events_unbound	21:32:02	0
1207898	99	65	57,6	cyclictest	1245475	-21	kworker/u4:1+events_unbound	21:32:02	0
1207899	99	64	37,24	cyclictest	1218036	-21	unixbench_singl	19:45:39	1
1207899	99	64	32,29	cyclictest	0	-21	swapper/1	23:50:02	1
1207899	99	64	28,32	cyclictest	0	-21	swapper/1	00:30:18	1
1207898	99	64	56,6	cyclictest	1371796	-21	kworker/u4:1+events_unbound	23:47:30	0
1207899	99	63	33,27	cyclictest	1373685	-21	munin-plugin-st	23:45:01	1
1207899	99	63	31,28	cyclictest	0	-21	swapper/1	22:45:29	1
1207899	99	63	29,31	cyclictest	0	-21	swapper/1	19:55:02	1
1207899	99	63	27,33	cyclictest	0	-21	swapper/1	21:30:23	1
1207899	99	63	27,33	cyclictest	0	-21	swapper/1	21:30:23	1
1207898	99	63	52,5	cyclictest	1363021	-21	kworker/u4:17+events_unbound	23:32:27	0
1207898	99	63	40,19	cyclictest	54	-21	kswapd0	23:50:12	0
1207899	99	62	33,25	cyclictest	1313057	-21	latency_hist	22:35:02	1
1207899	99	62	33,25	cyclictest	1313057	-21	latency_hist	22:35:02	1
1207899	99	62	31,27	cyclictest	0	-21	swapper/1	00:35:35	1
1207899	99	62	30,29	cyclictest	1344750	-21	switchtime	23:10:37	1
1207899	99	62	27,32	cyclictest	0	-21	swapper/1	21:25:16	1
1207899	99	62	26,33	cyclictest	0	-21	swapper/1	23:15:37	1
1207899	99	62	26,33	cyclictest	0	-21	swapper/1	23:15:37	1
1207899	99	62	26,32	cyclictest	0	-21	swapper/1	23:00:27	1
1207898	99	62	55,5	cyclictest	1306948	-21	kworker/u4:13+events_unbound	22:37:56	0
1207898	99	62	54,6	cyclictest	1224536	-21	kworker/u4:7+events_unbound	20:50:01	0
1207899	99	61	52,5	cyclictest	0	-21	swapper/1	22:25:32	1
1207899	99	61	5,11	cyclictest	1317584	-21	apt-get	22:40:11	1
1207899	99	61	30,27	cyclictest	0	-21	swapper/1	19:15:00	1
1207899	99	61	29,30	cyclictest	0	-21	swapper/1	00:05:20	1
1207899	99	61	25,31	cyclictest	0	-21	swapper/1	23:30:26	1
1207898	99	61	53,5	cyclictest	1376216	-21	kworker/u4:6+events_unbound	23:59:59	0
1207898	99	61	53,5	cyclictest	1376216	-21	kworker/u4:6+events_unbound	23:59:59	0
1207899	99	60	32,25	cyclictest	1337231	-21	kworker/u4:3-rpciod	23:20:32	1
1207899	99	60	27,29	cyclictest	0	-21	swapper/1	21:50:26	1
1207899	99	60	26,30	cyclictest	0	-21	swapper/1	21:55:33	1
1207899	99	60	26,30	cyclictest	0	-21	swapper/1	19:55:29	1
1207899	99	60	25,32	cyclictest	0	-21	swapper/1	22:10:30	1
1207899	99	60	25,31	cyclictest	0	-21	swapper/1	00:20:01	1
1207898	99	60	52,6	cyclictest	1218082	-21	kworker/u4:12+events_unbound	20:20:01	0
1207898	99	60	46,12	cyclictest	0	-21	swapper/0	23:10:13	0
1207899	99	59	32,25	cyclictest	0	-21	swapper/1	00:25:36	1
1207899	99	59	27,28	cyclictest	0	-21	swapper/1	23:25:37	1
1207899	99	59	25,31	cyclictest	1248822	-21	processes	21:20:39	1
1207899	99	59	1,20	cyclictest	1300906	-21	ssh	22:20:26	1
1207898	99	59	53,5	cyclictest	1228381	-21	kworker/u4:11+events_unbound	20:55:02	0
1207898	99	59	52,5	cyclictest	1228381	-21	kworker/u4:11+events_unbound	20:31:52	0
1207898	99	59	51,6	cyclictest	1272133	-21	kworker/u4:4+events_unbound	22:02:10	0
1207899	99	58	5,18	cyclictest	1283536	-21	ntpq	22:00:30	1
1207899	99	58	27,28	cyclictest	0	-21	swapper/1	22:55:34	1
1207899	99	58	27,28	cyclictest	0	-21	swapper/1	20:50:37	1
1207899	99	58	18,36	cyclictest	0	-21	swapper/1	21:40:33	1
1207899	99	58	13,8	cyclictest	1228496	-21	sort	20:30:02	1
1207899	99	58	1,18	cyclictest	1287115	-21	ssh	22:05:09	1
1207898	99	58	53,4	cyclictest	1359255	-21	kworker/u4:0+events_unbound	23:30:01	0
1207898	99	58	50,6	cyclictest	1406571	-21	kworker/u4:8+events_unbound	00:23:00	0
1207898	99	58	50,6	cyclictest	1306948	-21	kworker/u4:13+events_unbound	22:28:00	0
1207898	99	58	49,7	cyclictest	1245475	-21	kworker/u4:1+events_unbound	21:27:02	0
1207898	99	58	49,6	cyclictest	1319566	-21	kworker/u4:4+events_unbound	22:45:43	0
1207899	99	57	28,26	cyclictest	1209606	-21	fschecks_count	19:15:19	1
1207899	99	57	28,26	cyclictest	0	-21	swapper/1	20:35:15	1
1207899	99	57	22,32	cyclictest	0	-21	swapper/1	23:05:15	1
1207899	99	57	2,17	cyclictest	1366225	-21	ssh	23:35:34	1
1207898	99	57	50,5	cyclictest	1298090	-21	kworker/u4:7+events_unbound	22:17:13	0
1207898	99	57	48,6	cyclictest	1209124	-21	kworker/u4:6+events_unbound	20:05:01	0
1207898	99	57	44,6	cyclictest	0	-21	swapper/0	19:55:11	0
1207899	99	56	4,16	cyclictest	1236978	-21	sshd	21:00:35	1
1207899	99	56	26,27	cyclictest	1222057	-21	grep	20:05:02	1
1207898	99	56	48,4	cyclictest	0	-21	swapper/0	00:14:40	0
1207898	99	56	35,19	cyclictest	1209586	-21	fschecks_count	19:15:19	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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