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 Tue Jul 28, 2026 12:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3142976	99	104	96,6	cyclictest	3327204	-21	kworker/u4:7+events_unbound	12:25:07	1
3142976	99	100	92,6	cyclictest	3269425	-21	kworker/u4:10+events_unbound	10:59:51	1
3142976	99	99	86,7	cyclictest	0	-21	swapper/1	11:25:39	1
3142976	99	94	87,5	cyclictest	3157096	-21	kworker/u4:1+events_unbound	08:44:16	1
3142976	99	94	81,6	cyclictest	3151899	-21	kworker/u4:2+events_unbound	07:44:09	1
3142975	99	94	81,7	cyclictest	53	-21	kswapd0	11:25:09	0
3142976	99	93	86,5	cyclictest	3160918	-21	kworker/u4:18+events_unbound	08:24:14	1
3142976	99	91	84,5	cyclictest	3160918	-21	kworker/u4:18+events_unbound	08:49:19	1
3142975	99	91	72,15	cyclictest	53	-21	kswapd0	09:20:22	0
3142976	99	90	82,6	cyclictest	3148054	-21	kworker/u4:8+events_unbound	07:29:06	1
3142976	99	90	76,5	cyclictest	3238619	-21	kworker/u4:4+events_unbound	10:24:39	1
3142976	99	87	80,5	cyclictest	3148055	-21	kworker/u4:12+events_unbound	09:04:21	1
3142976	99	86	79,5	cyclictest	3144196	-21	kworker/u4:9+events_unbound	07:14:04	1
3142976	99	86	79,5	cyclictest	3144196	-21	kworker/u4:9+events_unbound	07:14:04	1
3142976	99	85	72,5	cyclictest	3163569	-21	kworker/u4:6+events_unbound	08:29:14	1
3142975	99	85	41,39	cyclictest	0	-21	swapper/0	09:30:13	0
3142976	99	82	75,5	cyclictest	3151897	-21	kworker/u4:0+events_unbound	08:19:14	1
3142976	99	82	74,6	cyclictest	3151898	-21	kworker/u4:1+events_unbound	07:49:08	1
3142976	99	81	73,6	cyclictest	3151901	-21	kworker/u4:4+events_unbound	09:09:24	1
3142975	99	81	52,24	cyclictest	3265965	-21	ssh	10:53:37	0
3142976	99	79	72,5	cyclictest	3216174	-21	kworker/u4:11+events_unbound	09:59:34	1
3142975	99	79	2,40	cyclictest	0	-21	swapper/0	08:30:16	0
3142976	99	78	71,5	cyclictest	3349039	-21	kworker/u4:4+events_unbound	12:30:08	1
3142976	99	78	71,5	cyclictest	3151901	-21	kworker/u4:4+events_unbound	08:39:17	1
3142976	99	78	65,6	cyclictest	3164926	-21	kworker/u4:9+events_unbound	08:34:17	1
3142976	99	76	62,5	cyclictest	3157102	-21	kworker/u4:16+events_unbound	08:09:12	1
3142975	99	74	37,7	cyclictest	3355933	-21	fschecks_count	12:35:21	0
3142976	99	71	64,5	cyclictest	3141695	-21	kworker/u4:10+events_unbound	07:24:05	1
3142975	99	71	37,8	cyclictest	3351727	-21	if_eth0	12:30:23	0
3142975	99	70	7,38	cyclictest	0	-21	swapper/0	08:00:10	0
3142975	99	70	7,38	cyclictest	0	-21	swapper/0	08:00:10	0
3142975	99	70	62,5	cyclictest	3309221	-21	kworker/u4:0+events_unbound	12:20:06	0
3142975	99	68	32,6	cyclictest	0	-21	swapper/0	09:45:24	0
3142975	99	66	50,10	cyclictest	53	-21	kswapd0	12:10:10	0
3142975	99	65	58,5	cyclictest	3234117	-21	kworker/u4:7+events_unbound	10:45:00	0
3142976	99	64	51,9	cyclictest	0	-21	swapper/1	09:50:37	1
3142976	99	63	43,15	cyclictest	3232138	-21	fschecks_count	10:15:20	1
3142975	99	63	4,56	cyclictest	3245959	-21	ssh	10:30:37	0
3142975	99	60	51,6	cyclictest	3189849	-21	kworker/u4:4+events_unbound	09:29:27	0
3142975	99	60	46,10	cyclictest	3264922	-21	kworker/u4:14+events_unbound	11:20:18	0
3142975	99	59	51,6	cyclictest	3225121	-21	kworker/u4:7+events_unbound	10:09:36	0
3142976	99	58	51,5	cyclictest	3151898	-21	kworker/u4:1+events_unbound	07:50:02	1
3142975	99	58	50,6	cyclictest	3255934	-21	kworker/u4:4+events_unbound	11:14:55	0
3142975	99	58	49,6	cyclictest	3273922	-21	kworker/u4:5+events_unbound	11:40:00	0
3142976	99	57	38,13	cyclictest	53	-21	kswapd0	09:20:22	1
3142975	99	57	51,4	cyclictest	0	-21	swapper/0	12:00:12	0
3142976	99	56	47,7	cyclictest	3179244	-21	/usr/sbin/munin	09:15:20	1
3142975	99	56	49,5	cyclictest	3164926	-21	kworker/u4:9+events_unbound	08:54:18	0
3142975	99	55	47,6	cyclictest	378	-21	dbus-daemon	09:19:23	0
3142975	99	55	31,21	cyclictest	0	-21	swapper/0	08:25:08	0
3142975	99	54	47,5	cyclictest	3255934	-21	kworker/u4:4+events_unbound	11:01:59	0
3142975	99	54	47,5	cyclictest	3250837	-21	/usr/sbin/munin	10:35:42	0
3142975	99	54	45,6	cyclictest	0	-21	swapper/0	10:45:14	0
3142975	99	54	45,6	cyclictest	0	-21	swapper/0	10:45:14	0
3142976	99	53	45,6	cyclictest	53	-21	kswapd0	11:25:00	1
3142975	99	53	34,17	cyclictest	3338242	-21	gltestperf	12:15:21	0
3142975	99	53	34,16	cyclictest	0	-21	swapper/0	09:55:29	0
3142976	99	52	44,6	cyclictest	3273921	-21	kworker/u4:2+events_unbound	11:05:03	1
3142976	99	52	44,6	cyclictest	3241183	-21	/usr/sbin/munin	10:25:20	1
3142976	99	51	45,4	cyclictest	3315911	-21	/usr/sbin/munin	11:50:16	1
3142976	99	51	45,4	cyclictest	3146778	-21	kworker/u4:9+events_unbound	07:30:03	1
3142976	99	50	43,5	cyclictest	3320921	-21	ntp_kernel_pll_	11:55:27	1
3142976	99	50	34,7	cyclictest	3234114	-21	kworker/u4:1+events_unbound	10:53:25	1
3142975	99	50	41,6	cyclictest	3154441	-21	kworker/u4:9+events_unbound	07:54:10	0
3142975	99	50	40,7	cyclictest	3271166	-21	sshd	10:59:51	0
3142975	99	50	37,7	cyclictest	0	-21	swapper/0	11:05:38	0
3142976	99	49	42,5	cyclictest	3238620	-21	kworker/u4:5+events_unbound	10:40:03	1
3142976	99	49	38,6	cyclictest	0	-21	swapper/1	11:35:42	1
3142975	99	49	34,10	cyclictest	0	-21	swapper/0	09:50:27	0
3142976	99	48	41,5	cyclictest	3249480	-21	apt-get	10:35:13	1
3142976	99	48	40,6	cyclictest	3313714	-21	kworker/u4:3+events_unbound	11:47:45	1
3142976	99	48	39,7	cyclictest	3329450	-21	gltestperf	12:05:21	1
3142976	99	48	39,6	cyclictest	0	-21	swapper/1	12:15:04	1
3142975	99	48	39,7	cyclictest	3167491	-21	kworker/u4:14+events_unbound	08:59:21	0
3142975	99	48	28,17	cyclictest	0	-21	swapper/0	09:35:28	0
3142976	99	47	40,5	cyclictest	3342456	-21	aten_r7power_vo	12:20:16	1
3142976	99	47	40,5	cyclictest	3206239	-21	proc_pri	09:45:37	1
3142976	99	47	40,5	cyclictest	3205148	-21	latency_hist	09:45:02	1
3142976	99	47	38,6	cyclictest	3291221	-21	kworker/u4:12-rpciod	11:30:39	1
3142976	99	47	34,5	cyclictest	3148054	-21	kworker/u4:8+events_unbound	07:55:01	1
3142975	99	47	40,5	cyclictest	3237002	-21	ntpq	10:20:30	0
3142975	99	47	40,3	cyclictest	0	-21	swapper/0	11:45:12	0
3142975	99	47	39,6	cyclictest	3173117	-21	fschecks_time	09:05:20	0
3142976	99	46	39,5	cyclictest	3227777	-21	fschecks_time	10:10:21	1
3142976	99	46	39,5	cyclictest	3169354	-21	gltestperf	08:50:21	1
3142976	99	46	39,5	cyclictest	3145522	-21	sh	07:20:00	1
3142976	99	46	39,4	cyclictest	3269425	-21	kworker/u4:10-rpciod	11:00:29	1
3142976	99	46	38,6	cyclictest	0	-21	swapper/1	10:45:27	1
3142976	99	46	38,6	cyclictest	0	-21	swapper/1	10:45:27	1
3142975	99	46	37,6	cyclictest	0	-21	swapper/0	11:15:33	0
3142975	99	46	24,19	cyclictest	0	-21	swapper/0	12:25:34	0
3142976	99	45	38,5	cyclictest	3286108	-21	sed	11:15:39	1
3142976	99	45	38,5	cyclictest	3142972	-21	cyclictest	12:35:41	1
3142976	99	45	26,7	cyclictest	3189849	-21	kworker/u4:4+events_unbound	09:38:18	1
3142975	99	45	38,5	cyclictest	3231789	-21	apt-get	10:15:15	0
3142975	99	45	38,5	cyclictest	3231500	-21	apt	10:15:00	0
3142975	99	45	38,5	cyclictest	3218678	-21	aten_r7power_en	10:00:17	0
3142975	99	45	38,5	cyclictest	3160967	-21	munin-plugin-st	08:20:00	0
3142975	99	45	38,5	cyclictest	3150650	-21	munin-plugin-st	07:40:00	0
3142975	99	45	37,5	cyclictest	3291221	-21	kworker/u4:12-rpciod	11:40:30	0
3142975	99	45	35,7	cyclictest	3139258	-21	kworker/u4:5-xprtiod	07:20:37	0
3142975	99	45	35,7	cyclictest	0	-21	swapper/0	11:30:12	0
3142976	99	44	38,4	cyclictest	3151897	-21	kworker/u4:0+events_unbound	08:00:02	1
3142976	99	44	38,4	cyclictest	3151897	-21	kworker/u4:0+events_unbound	08:00:01	1
3142976	99	44	37,5	cyclictest	0	-21	swapper/1	10:05:31	1
3142976	99	44	36,6	cyclictest	3191889	-21	sshd	09:30:04	1
3142976	99	44	36,6	cyclictest	0	-21	swapper/1	09:25:36	1
3142976	99	44	35,6	cyclictest	3170519	-21	fschecks_count	08:55:18	1
3142976	99	44	33,8	cyclictest	0	-21	swapper/1	09:10:21	1
3142975	99	44	37,5	cyclictest	3158965	-21	gltestperf	08:10:21	0
3142975	99	44	36,6	cyclictest	3152184	-21	aten_r7power_en	07:45:15	0
3142975	99	44	35,7	cyclictest	3202169	-21	head	09:40:39	0
3142975	99	44	34,7	cyclictest	3320366	-21	aten_r7power_vo	11:55:16	0
3142975	99	44	28,14	cyclictest	3151943	-21	munin-plugin-st	07:45:01	0
3142976	99	43	37,4	cyclictest	3281081	-21	ntp_kernel_err	11:10:24	1
3142976	99	43	37,4	cyclictest	3222701	-21	idleruntime-cro	10:05:00	1
3142976	99	43	37,4	cyclictest	0	-21	swapper/1	10:30:12	1
3142975	99	43	36,5	cyclictest	3165390	-21	fschecks_count	08:35:18	0
3142975	99	43	36,5	cyclictest	3148055	-21	kworker/u4:12+events_unbound	08:20:14	0
3142975	99	43	35,6	cyclictest	3172516	-21	grep	09:00:42	0
3142975	99	43	24,16	cyclictest	0	-21	swapper/0	12:05:25	0
3142976	99	42	36,4	cyclictest	3307002	-21	aten2__	11:40:16	1
3142975	99	42	35,5	cyclictest	3316267	-21	ssh	11:50:21	0
3142975	99	42	35,5	cyclictest	3141695	-21	kworker/u4:10-rpciod	07:25:20	0
3142975	99	42	32,7	cyclictest	0	-21	swapper/0	10:30:01	0
3142976	99	41	33,6	cyclictest	317	-21	systemd-journal	12:01:44	1
3142976	99	41	30,8	cyclictest	0	-21	swapper/1	07:35:16	1
3142976	99	41	23,6	cyclictest	3335419	-21	kworker/u4:14+events_unbound	12:14:45	1
3142975	99	41	33,6	cyclictest	3167985	-21	fschecks_time	08:45:21	0
3142975	99	41	32,7	cyclictest	3167508	-21	cron	08:45:00	0
3142975	99	41	31,7	cyclictest	3139258	-21	kworker/u4:5-rpciod	07:15:21	0
3142975	99	41	2,17	cyclictest	3174211	-21	apt-get	09:10:13	0
3142975	99	41	20,18	cyclictest	0	-21	swapper/0	07:35:00	0
3142976	99	40	34,4	cyclictest	3151899	-21	kworker/u4:2-rpciod	08:10:20	1
3142975	99	40	33,5	cyclictest	3149326	-21	kworker/u4:14+rpciod	08:00:00	0
3142975	99	40	31,6	cyclictest	3157403	-21	aten_r7power_po	08:05:21	0
3142975	99	40	31,6	cyclictest	3140465	-21	kworker/u4:8-rpciod	07:10:37	0
3142975	99	40	31,6	cyclictest	3140465	-21	kworker/u4:8-rpciod	07:10:37	0
3142976	99	31	22,7	cyclictest	0	-21	swapper/1	07:10:01	1
3142975	99	31	20,6	cyclictest	0	-21	swapper/0	07:10:02	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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