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 Sat Jun 27, 2026 00:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1388984	99	124	109,7	cyclictest	1405548	-21	kworker/u4:0+events_unbound	20:31:00	1
1388984	99	116	108,6	cyclictest	1408212	-21	kworker/u4:11+events_unbound	21:01:01	1
1388984	99	113	106,5	cyclictest	1401709	-21	kworker/u4:5+events_unbound	20:36:01	1
1388984	99	111	103,6	cyclictest	1401709	-21	kworker/u4:5+events_unbound	20:46:01	1
1388984	99	107	101,4	cyclictest	1466326	-21	kworker/u4:8+events_unbound	22:11:15	1
1388984	99	106	98,6	cyclictest	1401709	-21	kworker/u4:5+events_unbound	20:41:01	1
1388984	99	104	97,5	cyclictest	1395336	-21	kworker/u4:16+events_unbound	19:55:59	1
1388984	99	104	97,5	cyclictest	1376298	-21	kworker/u4:1+events_unbound	20:05:59	1
1388984	99	94	87,5	cyclictest	1376298	-21	kworker/u4:1+events_unbound	19:40:56	1
1388984	99	94	80,6	cyclictest	1390214	-21	kworker/u4:6+events_unbound	19:45:56	1
1388984	99	93	86,5	cyclictest	1392792	-21	kworker/u4:3+events_unbound	20:15:58	1
1388984	99	93	86,5	cyclictest	1390216	-21	kworker/u4:8+events_unbound	19:15:53	1
1388984	99	85	78,5	cyclictest	1390212	-21	kworker/u4:0+events_unbound	19:25:57	1
1388984	99	79	73,4	cyclictest	1408212	-21	kworker/u4:11+events_unbound	21:17:00	1
1388984	99	77	70,5	cyclictest	1390214	-21	kworker/u4:6+events_unbound	19:35:01	1
1388983	99	67	58,7	cyclictest	53	-21	kswapd0	23:00:01	0
1388984	99	65	60,4	cyclictest	1376298	-21	kworker/u4:1+events_unbound	19:10:02	1
1388984	99	63	56,5	cyclictest	1390212	-21	kworker/u4:0+events_unbound	19:30:03	1
1388984	99	62	4,46	cyclictest	1602080	-21	ssh	00:35:29	1
1388983	99	62	53,6	cyclictest	1405548	-21	kworker/u4:0+events_unbound	20:25:01	0
1388983	99	61	52,7	cyclictest	1568139	-21	kworker/u4:7+events_unbound	00:40:01	0
1388984	99	60	53,5	cyclictest	1527800	-21	kworker/u4:3+events_unbound	00:11:00	1
1388984	99	59	53,4	cyclictest	1506700	-21	kworker/u4:4+events_unbound	22:49:45	1
1388984	99	58	47,7	cyclictest	1388981	-21	cyclictest	23:40:24	1
1388984	99	57	51,4	cyclictest	1484260	-21	kworker/u4:5+events_unbound	22:41:59	1
1388984	99	57	50,5	cyclictest	1401709	-21	kworker/u4:5+events_unbound	20:10:03	1
1388983	99	57	45,7	cyclictest	1444489	-21	kworker/u4:7-rpciod	22:20:01	0
1388983	99	57	39,16	cyclictest	1412057	-21	sh	20:40:00	0
1388984	99	56	49,5	cyclictest	1510539	-21	kworker/u4:13+events_unbound	23:02:59	1
1388984	99	56	47,6	cyclictest	53	-21	kswapd0	00:15:19	1
1388984	99	55	47,6	cyclictest	1537414	-21	kworker/u4:1+events_unbound	23:34:59	1
1388984	99	55	47,5	cyclictest	0	-21	swapper/1	23:10:20	1
1388983	99	54	13,29	cyclictest	0	-21	swapper/0	22:55:02	0
1388984	99	53	46,5	cyclictest	1466326	-21	kworker/u4:8+events_unbound	22:38:00	1
1388984	99	53	46,5	cyclictest	1466326	-21	kworker/u4:8+events_unbound	22:38:00	1
1388984	99	53	45,6	cyclictest	1575626	-21	ld	00:05:37	1
1388984	99	53	2,42	cyclictest	1588873	-21	ntpq	00:20:36	1
1388983	99	53	44,6	cyclictest	1444485	-21	kworker/u4:0+events_unbound	21:51:13	0
1388983	99	53	37,14	cyclictest	1566156	-21	tune2fs	23:55:18	0
1388983	99	53	20,19	cyclictest	0	-21	swapper/0	00:25:17	0
1388984	99	52	45,5	cyclictest	1487803	-21	unixbench_singl	22:25:43	1
1388984	99	52	43,6	cyclictest	1442761	-21	diskmemload	21:35:24	1
1388983	99	52	44,6	cyclictest	1571411	-21	timerandwakeup	00:00:38	0
1388983	99	52	44,6	cyclictest	1390720	-21	fschecks_time	19:15:19	0
1388983	99	52	33,6	cyclictest	1493234	-21	kworker/u4:3+events_unbound	22:36:19	0
1388983	99	52	33,6	cyclictest	1493234	-21	kworker/u4:3+events_unbound	22:36:19	0
1388983	99	52	33,6	cyclictest	1392793	-21	kworker/u4:4+events_unbound	19:50:00	0
1388984	99	51	44,5	cyclictest	1399770	-21	gltestperf	19:50:20	1
1388984	99	51	41,7	cyclictest	1557433	-21	gltestperf	23:45:22	1
1388984	99	51	40,5	cyclictest	1527800	-21	kworker/u4:3+events_unbound	23:51:00	1
1388983	99	51	44,5	cyclictest	1499664	-21	/usr/sbin/munin	22:40:10	0
1388983	99	51	42,7	cyclictest	1600168	-21	sshd	00:33:45	0
1388983	99	51	42,7	cyclictest	1419681	-21	systemd	21:06:02	0
1388983	99	51	42,6	cyclictest	1442554	-21	df_abs	21:35:21	0
1388983	99	51	30,18	cyclictest	1401760	-21	sendmail	20:00:00	0
1388983	99	51	28,20	cyclictest	0	-21	swapper/0	23:35:14	0
1388984	99	50	43,5	cyclictest	1435574	-21	kworker/u4:22+events_unbound	21:27:00	1
1388984	99	50	43,5	cyclictest	1429403	-21	fschecks_time	21:20:19	1
1388984	99	50	43,4	cyclictest	1470681	-21	sshd	22:06:31	1
1388983	99	50	43,5	cyclictest	1391743	-21	aten2__	19:20:15	0
1388983	99	50	40,6	cyclictest	1444489	-21	kworker/u4:7+events_unbound	22:15:02	0
1388983	99	50	39,9	cyclictest	53	-21	kswapd0	23:40:19	0
1388983	99	50	27,20	cyclictest	1561722	-21	fschecks_count	23:50:20	0
1388983	99	50	18,19	cyclictest	1399417	-21	aten_r7power_cu	19:50:15	0
1388983	99	50	16,18	cyclictest	0	-21	swapper/0	20:25:20	0
1388984	99	49	42,5	cyclictest	1497717	-21	kworker/u4:6+events_unbound	22:55:00	1
1388984	99	49	40,7	cyclictest	1549353	-21	unixbench-2d	23:35:38	1
1388984	99	49	37,8	cyclictest	0	-21	swapper/1	22:30:29	1
1388983	99	49	42,5	cyclictest	1433714	-21	df_abs	21:25:18	0
1388983	99	49	39,8	cyclictest	53	-21	kswapd0	23:00:16	0
1388983	99	49	27,19	cyclictest	1431065	-21	kworker/u4:17-xprtiod	21:30:20	0
1388983	99	49	18,8	cyclictest	1073	-21	snmpd	23:19:01	0
1388983	99	49	17,18	cyclictest	0	-21	swapper/0	21:15:00	0
1388984	99	48	40,6	cyclictest	1451638	-21	gltestperf	21:45:21	1
1388984	99	48	39,7	cyclictest	1477578	-21	/usr/sbin/munin	22:15:10	1
1388984	99	48	39,7	cyclictest	1447003	-21	/usr/sbin/munin	21:40:19	1
1388984	99	48	38,8	cyclictest	1513683	-21	ntp_offset	22:55:29	1
1388984	99	48	38,7	cyclictest	0	-21	swapper/1	21:30:09	1
1388983	99	48	39,6	cyclictest	1522167	-21	gltestperf	23:05:20	0
1388983	99	48	38,8	cyclictest	1405981	-21	fschecks_count	20:15:18	0
1388983	99	48	36,9	cyclictest	1575832	-21	xargs	00:05:39	0
1388983	99	48	28,18	cyclictest	0	-21	swapper/0	22:20:19	0
1388983	99	48	27,18	cyclictest	0	-21	swapper/0	22:50:01	0
1388983	99	48	21,14	cyclictest	15	1	ktimers/0	19:35:24	0
1388984	99	47	40,5	cyclictest	1527800	-21	kworker/u4:3+events_unbound	23:21:59	1
1388984	99	47	38,6	cyclictest	1522933	-21	grep	23:05:40	1
1388984	99	47	37,8	cyclictest	1566753	-21	proc_pri	23:55:37	1
1388984	99	47	32,5	cyclictest	1453501	-21	kworker/u4:11+events_unbound	21:50:49	1
1388984	99	47	26,9	cyclictest	17	1	rcu_preempt	00:25:45	1
1388983	99	47	8,5	cyclictest	15	1	ktimers/0	23:30:01	0
1388983	99	47	39,5	cyclictest	1464714	-21	fschecks_count	22:00:19	0
1388983	99	47	39,5	cyclictest	1393472	-21	kernelversion	19:25:22	0
1388983	99	47	38,5	cyclictest	0	-21	swapper/0	21:40:31	0
1388983	99	47	37,7	cyclictest	1390030	-21	timerwakeupswit	19:10:36	0
1388983	99	47	36,8	cyclictest	1527528	-21	/usr/sbin/munin	23:10:46	0
1388983	99	47	36,8	cyclictest	1491115	-21	/usr/sbin/munin	22:30:16	0
1388984	99	46	39,5	cyclictest	1402243	-21	cut	20:00:20	1
1388984	99	46	39,5	cyclictest	1394060	-21	kworker/u4:14+events_unbound	20:25:03	1
1388984	99	46	37,7	cyclictest	1530856	-21	/usr/sbin/munin	23:15:18	1
1388984	99	46	37,6	cyclictest	0	-21	swapper/1	23:25:50	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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