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 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 Thu Nov 27, 2025 12:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1354539	99	130	116,8	cyclictest	1364988	-21	kworker/u4:1+events_unbound	09:21:07	0
1354539	99	128	119,7	cyclictest	1494259	-21	kworker/u4:8+events_unbound	12:01:31	0
1354539	99	125	108,15	cyclictest	1453077	-21	kworker/u4:0+events_unbound	11:00:44	0
1354539	99	122	117,3	cyclictest	1353249	-21	kworker/u4:3+events_unbound	07:15:36	0
1354539	99	120	112,6	cyclictest	1354468	-21	kworker/u4:0+events_unbound	07:14:41	0
1354539	99	120	109,9	cyclictest	1494259	-21	kworker/u4:8+events_unbound	12:06:33	0
1354539	99	116	108,6	cyclictest	1534072	-21	kworker/u4:12+events_unbound	12:36:39	0
1354539	99	112	105,5	cyclictest	1391181	-21	kworker/u4:5+events_unbound	09:35:20	0
1354539	99	112	100,5	cyclictest	1408085	-21	kworker/u4:10+events_unbound	09:46:09	0
1354539	99	111	88,8	cyclictest	1394542	-21	kworker/u4:0+events_unbound	09:26:07	0
1354541	99	109	98,7	cyclictest	1361116	-21	kworker/u4:5+events_unbound	07:35:40	1
1354539	99	109	94,6	cyclictest	1394542	-21	kworker/u4:0+events_unbound	10:11:10	0
1354539	99	109	103,4	cyclictest	1501119	-21	kworker/u4:2+events_unbound	12:30:58	0
1354539	99	108	101,5	cyclictest	1383098	-21	kworker/u4:15+events_unbound	09:11:07	0
1354539	99	105	97,6	cyclictest	1432602	-21	kworker/u4:4+events_unbound	10:36:13	0
1354539	99	104	96,6	cyclictest	1432600	-21	kworker/u4:1+events_unbound	10:41:13	0
1354539	99	104	96,6	cyclictest	1375386	-21	kworker/u4:11+events_unbound	08:35:57	0
1354539	99	104	96,6	cyclictest	1366274	-21	kworker/u4:10+events_unbound	08:56:00	0
1354539	99	103	96,5	cyclictest	1363706	-21	kworker/u4:15+events_unbound	07:45:42	0
1354539	99	103	96,5	cyclictest	1363706	-21	kworker/u4:15+events_unbound	07:45:42	0
1354539	99	101	93,6	cyclictest	1371506	-21	kworker/u4:0+events_unbound	08:46:00	0
1354539	99	100	92,6	cyclictest	1422397	-21	kworker/u4:5+events_unbound	10:51:17	0
1354539	99	99	92,5	cyclictest	1383100	-21	kworker/u4:17+events_unbound	09:06:03	0
1354539	99	98	93,3	cyclictest	1387682	-21	kworker/u4:8+events_unbound	09:16:08	0
1354539	99	96	88,6	cyclictest	1484008	-21	kworker/u4:2+events_unbound	11:45:52	0
1354539	99	95	87,6	cyclictest	1397937	-21	kworker/u4:3+events_unbound	09:31:10	0
1354539	99	95	87,6	cyclictest	1361116	-21	kworker/u4:5+events_unbound	07:34:51	0
1354539	99	93	86,5	cyclictest	1435756	-21	kworker/u4:10+events_unbound	11:25:49	0
1354539	99	91	78,5	cyclictest	1466251	-21	kworker/u4:18+events_unbound	11:11:22	0
1354539	99	90	81,7	cyclictest	1521583	-21	kworker/u4:1+events_unbound	12:25:59	0
1354539	99	88	65,21	cyclictest	53	-21	kswapd0	10:00:09	0
1354539	99	88	65,21	cyclictest	53	-21	kswapd0	10:00:09	0
1354539	99	86	78,6	cyclictest	1459676	-21	kworker/u4:13+events_unbound	11:40:52	0
1354539	99	86	78,6	cyclictest	1375385	-21	kworker/u4:3+events_unbound	08:40:56	0
1354539	99	86	78,6	cyclictest	1375385	-21	kworker/u4:3+events_unbound	08:40:56	0
1354541	99	83	37,16	cyclictest	1474980	-21	apt-get	11:20:13	1
1354539	99	83	75,6	cyclictest	1466251	-21	kworker/u4:18+events_unbound	11:36:26	0
1354541	99	82	73,6	cyclictest	1466251	-21	kworker/u4:18+events_unbound	11:46:27	1
1354541	99	82	72,7	cyclictest	1521583	-21	kworker/u4:1+events_unbound	12:25:58	1
1354539	99	81	73,6	cyclictest	1366274	-21	kworker/u4:10+events_unbound	08:05:50	0
1354539	99	80	66,6	cyclictest	1355775	-21	kworker/u4:10+events_unbound	07:39:54	0
1354539	99	79	72,5	cyclictest	1412364	-21	kworker/u4:2+events_unbound	09:56:09	0
1354539	99	79	71,6	cyclictest	1487143	-21	kworker/u4:3+events_unbound	11:56:30	0
1354539	99	78	71,5	cyclictest	1364992	-21	kworker/u4:8+events_unbound	07:50:45	0
1354539	99	78	71,5	cyclictest	1363705	-21	kworker/u4:13+events_unbound	07:55:47	0
1354539	99	78	70,6	cyclictest	1371506	-21	kworker/u4:0+events_unbound	08:20:08	0
1354539	99	77	49,23	cyclictest	1358415	-21	apt-get	07:25:10	0
1354539	99	76	68,6	cyclictest	1364989	-21	kworker/u4:2+events_unbound	08:00:50	0
1354541	99	75	66,7	cyclictest	1383098	-21	kworker/u4:15+events_unbound	09:10:17	1
1354541	99	73	60,10	cyclictest	1442826	-21	kworker/u4:2+events_unbound	10:55:42	1
1354539	99	73	66,5	cyclictest	1494259	-21	kworker/u4:8+events_unbound	12:11:34	0
1354541	99	72	63,6	cyclictest	1408085	-21	kworker/u4:10+events_unbound	09:45:21	1
1354539	99	72	65,5	cyclictest	1466250	-21	kworker/u4:17+events_unbound	11:30:49	0
1354539	99	72	65,5	cyclictest	1404937	-21	kworker/u4:8+events_unbound	09:50:20	0
1354539	99	72	63,7	cyclictest	1501119	-21	kworker/u4:2+events_unbound	12:21:35	0
1354541	99	68	29,14	cyclictest	1516769	-21	ssh	12:16:30	1
1354541	99	68	28,15	cyclictest	1457776	-21	ssh	10:54:48	1
1354539	99	68	54,6	cyclictest	1358374	-21	kworker/u4:17+events_unbound	07:24:42	0
1354541	99	67	32,10	cyclictest	1395581	-21	ssh	09:24:30	1
1354541	99	67	29,14	cyclictest	1510477	-21	ssh	12:09:49	1
1354541	99	67	29,13	cyclictest	1505659	-21	ssh	12:03:10	1
1354541	99	67	28,15	cyclictest	1392368	-21	ssh	09:19:52	1
1354541	99	67	28,11	cyclictest	1485239	-21	ssh	11:34:59	1
1354539	99	67	61,5	cyclictest	1394542	-21	kworker/u4:0+events_unbound	10:06:10	0
1354541	99	66	58,6	cyclictest	1394542	-21	kworker/u4:0+events_unbound	09:41:10	1
1354541	99	66	29,14	cyclictest	1449764	-21	ssh	10:42:23	1
1354541	99	66	28,14	cyclictest	1502427	-21	ssh	11:59:36	1
1354541	99	66	27,15	cyclictest	1522543	-21	ssh	12:23:50	1
1354541	99	66	26,15	cyclictest	1439649	-21	ssh	10:28:02	1
1354539	99	66	58,6	cyclictest	1459676	-21	kworker/u4:13+events_unbound	11:21:22	0
1354539	99	66	56,7	cyclictest	1473327	-21	ssh	11:17:13	0
1354541	99	65	28,12	cyclictest	1402842	-21	ssh	09:35:05	1
1354541	99	65	27,15	cyclictest	1428406	-21	ssh	10:10:47	1
1354541	99	65	27,14	cyclictest	1470299	-21	ssh	11:13:14	1
1354541	99	65	27,14	cyclictest	1442841	-21	ssh	10:32:17	1
1354541	99	65	27,14	cyclictest	1442841	-21	ssh	10:32:17	1
1354541	99	65	24,14	cyclictest	1368372	-21	grep	08:00:28	1
1354539	99	65	60,4	cyclictest	1428977	-21	kworker/u4:8+events_unbound	10:25:02	0
1354541	99	64	29,10	cyclictest	1419446	-21	ssh	09:58:28	1
1354541	99	64	28,13	cyclictest	1453929	-21	ssh	10:49:26	1
1354541	99	64	27,15	cyclictest	1512619	-21	ssh	12:11:35	1
1354541	99	64	27,14	cyclictest	1489855	-21	ld	11:40:32	1
1354541	99	64	26,13	cyclictest	0	-21	swapper/1	12:35:40	1
1354541	99	64	25,14	cyclictest	1496605	-21	ntpq	11:50:28	1
1354541	99	63	55,5	cyclictest	1371506	-21	kworker/u4:0+events_unbound	08:35:09	1
1354541	99	63	28,9	cyclictest	1364564	-21	ntp_states	07:45:35	1
1354541	99	63	28,9	cyclictest	1364564	-21	ntp_states	07:45:34	1
1354541	99	63	28,10	cyclictest	1479108	-21	ntpq	11:25:32	1
1354541	99	63	26,12	cyclictest	1396354	-21	df_inode	09:25:18	1
1354541	99	63	25,15	cyclictest	1467280	-21	ssh	11:09:18	1
1354541	99	62	28,11	cyclictest	0	-21	swapper/1	10:00:30	1
1354541	99	62	28,11	cyclictest	0	-21	swapper/1	10:00:30	1
1354541	99	62	26,13	cyclictest	1530889	-21	ssh	12:33:27	1
1354541	99	62	25,14	cyclictest	1432290	-21	ssh	10:16:25	1
1354541	99	61	25,13	cyclictest	1375453	-21	sed	08:30:02	1
1354541	99	61	25,12	cyclictest	1402242	-21	ssh	09:34:10	1
1354541	99	61	24,14	cyclictest	1487238	-21	ssh	11:36:37	1
1354541	99	60	26,10	cyclictest	1434679	-21	ssh	10:20:36	1
1354541	99	60	24,13	cyclictest	1462633	-21	ssh	11:01:10	1
1354541	99	60	24,13	cyclictest	1426204	-21	ssh	10:08:23	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2019-05-28 - 00:17