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 Thu Nov 20, 2025 12:44:07)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
624406	99	142	124,6	cyclictest	754934	-21	kworker/u4:10+events_unbound	11:51:18	0
624406	99	129	111,8	cyclictest	709769	-21	kworker/u4:3+events_unbound	10:36:06	0
624408	99	122	114,5	cyclictest	796128	-21	kworker/u4:6+events_unbound	12:35:46	1
624408	99	121	106,5	cyclictest	654199	-21	kworker/u4:11+events_unbound	09:05:09	1
624408	99	118	111,5	cyclictest	620651	-21	kworker/u4:6+events_unbound	07:34:46	1
624408	99	118	110,5	cyclictest	696046	-21	kworker/u4:9+events_unbound	10:20:20	1
624408	99	117	109,6	cyclictest	393429	-21	kworker/u4:4+events_unbound	07:29:45	1
624408	99	116	109,5	cyclictest	639827	-21	kworker/u4:4+events_unbound	08:45:05	1
624406	99	116	101,7	cyclictest	788666	-21	kworker/u4:2+events_unbound	12:31:24	0
624406	99	114	107,5	cyclictest	634671	-21	kworker/u4:8+events_unbound	07:49:49	0
624406	99	114	106,6	cyclictest	655480	-21	kworker/u4:12+events_unbound	09:10:56	0
624408	99	110	103,5	cyclictest	639830	-21	kworker/u4:9+events_unbound	08:35:03	1
624406	99	110	97,11	cyclictest	751698	-21	kworker/u4:6+events_unbound	11:31:16	0
624408	99	104	96,6	cyclictest	639831	-21	kworker/u4:10+events_unbound	08:09:56	1
624406	99	102	97,3	cyclictest	641202	-21	kworker/u4:1+events_unbound	08:14:56	0
624408	99	100	91,6	cyclictest	652892	-21	kworker/u4:6+events_unbound	09:00:55	1
624408	99	100	87,10	cyclictest	53	-21	kswapd0	10:10:18	1
624406	99	100	92,6	cyclictest	626914	-21	kworker/u4:8+events_unbound	07:19:42	0
624406	99	100	92,5	cyclictest	716546	-21	kworker/u4:8+events_unbound	10:46:07	0
624408	99	98	91,5	cyclictest	638546	-21	kworker/u4:0+events_unbound	08:04:54	1
624406	99	98	93,3	cyclictest	681589	-21	kworker/u4:5+events_unbound	10:00:16	0
624406	99	98	93,3	cyclictest	681589	-21	kworker/u4:5+events_unbound	10:00:15	0
624408	99	97	90,5	cyclictest	747975	-21	kworker/u4:1+events_unbound	11:26:14	1
624406	99	96	83,7	cyclictest	635953	-21	kworker/u4:14+events_unbound	07:55:32	0
624406	99	94	87,5	cyclictest	611610	-21	kworker/u4:3+events_unbound	07:24:42	0
624408	99	93	85,6	cyclictest	639827	-21	kworker/u4:4+events_unbound	08:55:07	1
624408	99	93	84,7	cyclictest	699601	-21	kworker/u4:11+events_unbound	10:16:04	1
624408	99	91	84,5	cyclictest	393429	-21	kworker/u4:4+events_unbound	07:44:48	1
624406	99	91	84,5	cyclictest	784656	-21	kworker/u4:13+events_unbound	12:16:21	0
624408	99	90	82,6	cyclictest	634668	-21	kworker/u4:3+events_unbound	07:54:53	1
624408	99	90	82,6	cyclictest	611608	-21	kworker/u4:1+events_unbound	07:39:47	1
624406	99	90	77,6	cyclictest	614173	-21	kworker/u4:0+events_unbound	07:14:42	0
624408	99	89	81,6	cyclictest	645173	-21	kworker/u4:1+events_unbound	08:30:44	1
624406	99	89	81,6	cyclictest	642483	-21	kworker/u4:12+events_unbound	08:40:04	0
624406	99	88	78,7	cyclictest	643887	-21	kworker/u4:14+events_unbound	08:55:54	0
624406	99	87	81,4	cyclictest	719994	-21	kworker/u4:12+events_unbound	11:10:32	0
624406	99	87	79,6	cyclictest	709766	-21	kworker/u4:0+events_unbound	10:41:06	0
624406	99	86	79,5	cyclictest	639830	-21	kworker/u4:9+events_unbound	08:19:57	0
624408	99	84	76,6	cyclictest	670532	-21	kworker/u4:9+events_unbound	09:45:15	1
624406	99	84	76,6	cyclictest	639827	-21	kworker/u4:4+events_unbound	09:35:59	0
624406	99	83	75,6	cyclictest	696045	-21	kworker/u4:8+events_unbound	10:26:03	0
624406	99	83	75,6	cyclictest	652892	-21	kworker/u4:6+events_unbound	09:00:09	0
624406	99	83	74,7	cyclictest	654199	-21	kworker/u4:11+events_unbound	09:05:55	0
624406	99	82	75,5	cyclictest	766076	-21	kworker/u4:1+events_unbound	12:11:20	0
624408	99	79	72,5	cyclictest	709766	-21	kworker/u4:0+events_unbound	10:31:05	1
624406	99	79	70,6	cyclictest	670532	-21	kworker/u4:9+events_unbound	09:40:59	0
624406	99	77	67,5	cyclictest	769702	-21	kworker/u4:7+events_unbound	12:05:42	0
624406	99	77	60,6	cyclictest	563178	-21	kworker/u4:13+events_unbound	07:35:02	0
624408	99	75	67,6	cyclictest	751696	-21	kworker/u4:4+events_unbound	11:35:36	1
624408	99	74	67,5	cyclictest	741468	-21	kworker/u4:0+events_unbound	11:46:19	1
624408	99	74	56,5	cyclictest	664253	-21	kworker/u4:3+events_unbound	09:30:00	1
624406	99	72	61,8	cyclictest	639827	-21	kworker/u4:4+events_unbound	08:25:43	0
624406	99	69	61,6	cyclictest	730435	-21	kworker/u4:15+events_unbound	11:05:02	0
624406	99	69	57,7	cyclictest	792668	-21	kworker/u4:0+events_unbound	12:25:02	0
624406	99	69	57,7	cyclictest	792668	-21	kworker/u4:0+events_unbound	12:25:02	0
624408	99	68	60,5	cyclictest	709769	-21	kworker/u4:3+events_unbound	10:35:25	1
624408	99	67	59,6	cyclictest	620651	-21	kworker/u4:6+events_unbound	08:10:34	1
624406	99	66	59,5	cyclictest	681588	-21	kworker/u4:3+events_unbound	09:50:02	0
624408	99	65	56,7	cyclictest	639830	-21	kworker/u4:9+events_unbound	09:20:11	1
624408	99	63	55,6	cyclictest	639827	-21	kworker/u4:4+events_unbound	08:15:37	1
624408	99	63	54,7	cyclictest	727231	-21	kworker/u4:9+events_unbound	11:20:04	1
624408	99	62	52,6	cyclictest	0	-21	swapper/1	09:55:14	1
624408	99	61	56,3	cyclictest	709770	-21	kworker/u4:4+events_unbound	11:01:11	1
624408	99	61	51,7	cyclictest	723712	-21	kworker/u4:1+events_unbound	10:50:29	1
624406	99	61	53,6	cyclictest	751696	-21	kworker/u4:4+events_unbound	11:35:02	0
624406	99	61	47,5	cyclictest	713104	-21	kworker/u4:9+events_unbound	10:32:37	0
624408	99	60	52,6	cyclictest	747975	-21	kworker/u4:1+events_unbound	11:40:37	1
624408	99	60	49,8	cyclictest	37	-21	kcompactd0	11:34:27	1
624406	99	60	53,5	cyclictest	620651	-21	kworker/u4:6+events_unbound	08:00:03	0
624406	99	59	35,21	cyclictest	764057	-21	aten2__	11:45:19	0
624408	99	58	47,8	cyclictest	0	-21	swapper/1	11:50:38	1
624406	99	58	52,4	cyclictest	620651	-21	kworker/u4:6+events_unbound	08:20:13	0
624408	99	57	47,7	cyclictest	784656	-21	kworker/u4:13+events_unbound	12:15:43	1
624406	99	57	52,3	cyclictest	754934	-21	kworker/u4:10+events_unbound	11:41:17	0
624406	99	57	48,6	cyclictest	709770	-21	kworker/u4:4+events_unbound	10:56:09	0
624408	99	56	48,6	cyclictest	737761	-21	kworker/u4:17+events_unbound	11:11:16	1
624408	99	56	48,6	cyclictest	626915	-21	kworker/u4:10+events_unbound	07:45:02	1
624408	99	56	47,7	cyclictest	634670	-21	kworker/u4:7+events_unbound	07:55:03	1
624408	99	55	47,6	cyclictest	709766	-21	kworker/u4:0+events_unbound	10:40:03	1
624408	99	55	44,7	cyclictest	731663	-21	modprobe	11:00:00	1
624406	99	55	48,5	cyclictest	694124	-21	fschecks_count	10:05:19	0
624406	99	55	46,6	cyclictest	639827	-21	kworker/u4:4+events_unbound	09:20:55	0
624408	99	54	44,7	cyclictest	652892	-21	kworker/u4:6+events_unbound	09:15:56	1
624406	99	54	49,3	cyclictest	664253	-21	kworker/u4:3+events_unbound	09:25:58	0
624406	99	54	35,7	cyclictest	0	-21	swapper/0	09:15:39	0
624408	99	53	46,5	cyclictest	624405	-21	cyclictest	09:30:11	1
624408	99	53	45,6	cyclictest	0	-21	swapper/1	08:20:40	1
624408	99	53	44,7	cyclictest	628246	-21	systemd	07:24:41	1
624408	99	52	44,5	cyclictest	772548	-21	sed	11:55:38	1
624408	99	52	38,11	cyclictest	0	-21	swapper/1	12:25:27	1
624408	99	52	38,11	cyclictest	0	-21	swapper/1	12:25:27	1
624408	99	51	39,5	cyclictest	612887	-21	kworker/u4:9+events_unbound	07:10:03	1
624408	99	51	38,10	cyclictest	0	-21	swapper/1	10:45:34	1
624406	99	51	44,5	cyclictest	705767	-21	unixbench_singl	10:20:43	0
624406	99	51	27,19	cyclictest	750830	-21	switchtime	11:25:44	0
624408	99	50	43,5	cyclictest	656964	-21	unixbench_multi	09:10:40	1
624408	99	50	42,5	cyclictest	0	-21	swapper/1	12:30:23	1
624408	99	50	41,7	cyclictest	694011	-21	sd-accept	10:05:15	1
624406	99	50	44,4	cyclictest	803000	-21	ssh	12:35:13	0
624406	99	50	43,5	cyclictest	788670	-21	kworker/u4:5+events_unbound	12:20:02	0
624408	99	49	40,5	cyclictest	0	-21	swapper/1	12:05:18	1
624408	99	49	39,8	cyclictest	691159	-21	/usr/sbin/munin	10:00:36	1
624408	99	49	39,8	cyclictest	691159	-21	/usr/sbin/munin	10:00:36	1
624408	99	49	34,7	cyclictest	788670	-21	kworker/u4:5+events_unbound	12:24:48	1
624406	99	49	42,5	cyclictest	563178	-21	kworker/u4:13+events_unbound	07:51:37	0
624406	99	49	21,22	cyclictest	17	1	rcu_preempt	11:55:28	0
624408	99	48	40,6	cyclictest	614173	-21	kworker/u4:0+events_unbound	07:17:37	1
624406	99	48	41,5	cyclictest	773633	-21	kworker/u4:6+events_unbound	12:02:36	0
624406	99	48	41,5	cyclictest	741468	-21	kworker/u4:0+events_unbound	11:21:37	0
624406	99	48	40,6	cyclictest	680037	-21	fschecks_count	09:45:23	0
624406	99	48	40,6	cyclictest	642484	-21	kworker/u4:13+events_unbound	08:50:53	0
624406	99	48	39,7	cyclictest	628819	-21	gltestperf	07:25:19	0
624406	99	48	36,7	cyclictest	670531	-21	kworker/u4:8+events_unbound	09:34:06	0
624406	99	48	36,10	cyclictest	733064	-21	/usr/sbin/munin	11:00:42	0
624408	99	47	39,5	cyclictest	677103	-21	cat	09:40:40	1
624408	99	47	38,7	cyclictest	719993	-21	kworker/u4:11+events_unbound	11:15:34	1
624408	99	46	38,6	cyclictest	708179	-21	systemd	10:25:20	1
624408	99	46	38,5	cyclictest	739008	-21	grep	11:10:01	1
624408	99	46	38,5	cyclictest	0	-21	swapper/1	09:50:34	1
624406	99	46	39,5	cyclictest	698626	-21	unixbench_singl	10:10:43	0
624406	99	46	38,5	cyclictest	647526	-21	timerandwakeup	08:35:44	0
624406	99	46	37,6	cyclictest	727229	-21	kworker/u4:5-rpciod	10:53:19	0
624408	99	45	37,5	cyclictest	672364	-21	find	09:35:09	1
624406	99	45	36,7	cyclictest	743799	-21	diskmemload	11:15:40	0
624406	99	45	35,8	cyclictest	630244	-21	sshd	07:30:22	0
624408	99	44	37,5	cyclictest	782738	-21	aten_r7power_cu	12:10:18	1
624408	99	43	34,5	cyclictest	0	-21	swapper/1	08:40:33	1
624406	99	43	37,4	cyclictest	689961	-21	sh	10:00:00	0
624406	99	43	36,5	cyclictest	655521	-21	diskmemload	10:15:14	0
624406	99	43	36,5	cyclictest	646218	-21	awk	08:30:37	0
624406	99	43	25,12	cyclictest	17	1	rcu_preempt	08:45:36	0
624408	99	42	36,4	cyclictest	0	-21	swapper/1	12:00:22	1
624408	99	42	13,25	cyclictest	27	1	ktimers/1	08:50:34	1
624406	99	40	33,5	cyclictest	632334	-21	grep	07:40:16	0
624408	99	38	29,6	cyclictest	644146	-21	aten_r7power_cu	08:25:12	1
624406	99	37	29,6	cyclictest	639690	-21	unixbench-2d	08:05:35	0
624406	99	34	15,12	cyclictest	17	1	rcu_preempt	07:10:01	0
624408	99	26	5,13	cyclictest	624381	-21	munin-run	07:10:00	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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