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 all highest latencies:

System rack7slot2.osadl.org (updated Sat Jun 13, 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
3173797	99	113	105,5	cyclictest	3181491	-21	kworker/u4:4+events_unbound	20:36:31	0
3173797	99	101	94,5	cyclictest	3353558	-21	kworker/u4:9+events_unbound	00:10:00	0
3173797	99	101	94,5	cyclictest	3353558	-21	kworker/u4:9+events_unbound	00:10:00	0
3173797	99	95	87,6	cyclictest	3344657	-21	kworker/u4:16+events_unbound	23:47:01	0
3173797	99	94	86,6	cyclictest	3371336	-21	kworker/u4:11+events_unbound	00:38:48	0
3173797	99	94	85,6	cyclictest	3248055	-21	kworker/u4:5+events_unbound	22:06:49	0
3173797	99	92	83,7	cyclictest	3317994	-21	kworker/u4:9+events_unbound	23:17:00	0
3173797	99	92	83,7	cyclictest	3317994	-21	kworker/u4:9+events_unbound	23:16:59	0
3173798	99	91	84,5	cyclictest	3349113	-21	kworker/u4:3+events_unbound	00:03:20	1
3173798	99	90	83,5	cyclictest	3197091	-21	kworker/u4:9+events_unbound	21:21:40	1
3173798	99	90	81,7	cyclictest	3305271	-21	kworker/u4:4+events_unbound	23:10:00	1
3173798	99	90	78,9	cyclictest	53	-21	kswapd0	00:30:01	1
3173798	99	90	78,9	cyclictest	53	-21	kswapd0	00:30:00	1
3173797	99	90	81,6	cyclictest	3305271	-21	kworker/u4:4+events_unbound	23:32:06	0
3173797	99	89	82,5	cyclictest	3256463	-21	kworker/u4:16+events_unbound	22:11:49	0
3173798	99	88	79,7	cyclictest	3327584	-21	kworker/u4:1+events_unbound	23:42:05	1
3173797	99	84	77,5	cyclictest	3161111	-21	kworker/u4:0+events_unbound	19:54:59	0
3173798	99	83	77,4	cyclictest	2956691	-21	kworker/u4:3+events_unbound	19:15:02	1
3173798	99	83	77,4	cyclictest	2956691	-21	kworker/u4:3+events_unbound	19:15:01	1
3173797	99	83	75,6	cyclictest	3199656	-21	kworker/u4:0+events_unbound	21:16:38	0
3173798	99	82	73,7	cyclictest	3216194	-21	kworker/u4:2+events_unbound	21:26:41	1
3173798	99	81	73,6	cyclictest	3309714	-21	kworker/u4:8+events_unbound	23:11:59	1
3173797	99	81	73,5	cyclictest	3291900	-21	kworker/u4:14+events_unbound	22:46:55	0
3173798	99	79	73,4	cyclictest	3242833	-21	kworker/u4:7+events_unbound	21:51:44	1
3173797	99	76	69,5	cyclictest	3317994	-21	kworker/u4:9+events_unbound	23:29:59	0
3173797	99	76	69,5	cyclictest	3175022	-21	kworker/u4:11+events_unbound	19:41:21	0
3173797	99	75	54,19	cyclictest	3282904	-21	kworker/u4:12+events_unbound	22:41:56	0
3173797	99	72	64,6	cyclictest	3187984	-21	kworker/u4:1+events_unbound	21:01:36	0
3173798	99	71	63,6	cyclictest	3173727	-21	kworker/u4:7+events_unbound	19:56:24	1
3173798	99	71	63,5	cyclictest	3200929	-21	kworker/u4:14+events_unbound	21:04:59	1
3173797	99	71	64,5	cyclictest	3261044	-21	kworker/u4:8+events_unbound	22:21:52	0
3173798	99	70	63,5	cyclictest	3366917	-21	kworker/u4:1+events_unbound	00:40:00	1
3173798	99	70	62,6	cyclictest	3265584	-21	kworker/u4:3+events_unbound	22:31:54	1
3173798	99	69	61,6	cyclictest	3239010	-21	kworker/u4:6+events_unbound	21:56:47	1
3173797	99	69	61,6	cyclictest	3220768	-21	kworker/u4:1+events_unbound	21:31:42	0
3173798	99	68	61,5	cyclictest	3279097	-21	kworker/u4:2+events_unbound	23:01:57	1
3173798	99	68	61,5	cyclictest	3279097	-21	kworker/u4:2+events_unbound	23:01:56	1
3173798	99	66	59,5	cyclictest	3335764	-21	kworker/u4:12+events_unbound	23:40:03	1
3173798	99	66	52,4	cyclictest	3189258	-21	kworker/u4:14+events_unbound	20:25:01	1
3173797	99	65	57,6	cyclictest	3384012	-21	kworker/u4:6+events_unbound	00:33:44	0
3173797	99	63	56,5	cyclictest	3172521	-21	kworker/u4:2+events_unbound	19:35:00	0
3173798	99	62	46,8	cyclictest	3305271	-21	kworker/u4:4+events_unbound	23:45:35	1
3173798	99	61	45,6	cyclictest	3197093	-21	kworker/u4:12+events_unbound	20:41:33	1
3173798	99	60	51,6	cyclictest	3314189	-21	kworker/u4:1+events_unbound	23:22:02	1
3173798	99	60	49,8	cyclictest	0	-21	swapper/1	22:50:33	1
3173798	99	59	52,5	cyclictest	3358025	-21	kworker/u4:4+events_unbound	00:05:04	1
3173798	99	59	52,5	cyclictest	3358025	-21	kworker/u4:4+events_unbound	00:05:03	1
3173798	99	58	50,6	cyclictest	3279097	-21	kworker/u4:2+events_unbound	22:55:36	1
3173798	99	58	44,5	cyclictest	3229875	-21	kworker/u4:12+events_unbound	21:40:02	1
3173798	99	58	42,5	cyclictest	3173727	-21	kworker/u4:7+events_unbound	19:10:01	1
3173797	99	58	51,5	cyclictest	3349111	-21	kworker/u4:0+events_unbound	23:53:03	0
3173797	99	58	51,5	cyclictest	3199656	-21	kworker/u4:0+events_unbound	21:06:38	0
3173798	99	57	48,6	cyclictest	3175022	-21	kworker/u4:11+events_unbound	19:40:01	1
3173798	99	57	48,6	cyclictest	3175022	-21	kworker/u4:11+events_unbound	19:40:00	1
3173797	99	57	51,4	cyclictest	3303149	-21	aten2__	23:00:16	0
3173797	99	57	51,4	cyclictest	3303149	-21	aten2__	23:00:15	0
3173797	99	57	49,6	cyclictest	3265584	-21	kworker/u4:3+events_unbound	22:25:03	0
3173798	99	56	48,6	cyclictest	3199656	-21	kworker/u4:0+events_unbound	21:14:00	1
3173798	99	56	46,8	cyclictest	3223955	-21	ps	21:30:35	1
3173798	99	56	34,5	cyclictest	3379593	-21	kworker/u4:14+events_unbound	00:31:15	1
3173797	99	56	47,6	cyclictest	3190617	-21	kworker/u4:18+events_unbound	20:45:03	0
3173798	99	55	48,5	cyclictest	3227724	-21	/usr/sbin/munin	21:35:17	1
3173798	99	55	42,4	cyclictest	3197093	-21	kworker/u4:12+events_unbound	20:50:01	1
3173798	99	55	37,7	cyclictest	3261043	-21	kworker/u4:7+events_unbound	22:30:01	1
3173798	99	54	46,6	cyclictest	3261043	-21	kworker/u4:7+events_unbound	22:36:55	1
3173798	99	54	46,6	cyclictest	3173727	-21	kworker/u4:7+events_unbound	19:50:01	1
3173797	99	54	47,5	cyclictest	3366917	-21	kworker/u4:1+events_unbound	00:13:37	0
3173798	99	53	44,6	cyclictest	3265584	-21	kworker/u4:3+events_unbound	22:20:16	1
3173798	99	53	42,9	cyclictest	3173796	-21	cyclictest	00:15:35	1
3173797	99	53	43,7	cyclictest	3174138	-21	df	19:10:15	0
3173797	99	53	43,7	cyclictest	3174138	-21	df	19:10:14	0
3173797	99	52	40,8	cyclictest	3324825	-21	latency_hist	23:25:01	0
3173798	99	51	44,5	cyclictest	3260984	-21	sh	22:11:48	1
3173797	99	51	44,5	cyclictest	3281244	-21	aten_r7power_vo	22:35:15	0
3173797	99	51	44,5	cyclictest	0	-21	swapper/0	00:00:21	0
3173797	99	51	43,6	cyclictest	3381588	-21	diskmemload	00:30:00	0
3173797	99	51	43,6	cyclictest	3381588	-21	diskmemload	00:29:59	0
3173798	99	50	44,4	cyclictest	3265582	-21	kworker/u4:0+events_unbound	22:17:00	1
3173798	99	50	44,4	cyclictest	3236820	-21	fschecks_count	21:45:18	1
3173797	99	50	43,5	cyclictest	3250602	-21	diskmemload	22:00:22	0
3173797	99	50	43,5	cyclictest	3172521	-21	kworker/u4:2+events_unbound	19:26:20	0
3173797	99	50	42,6	cyclictest	3373994	-21	ssh	00:20:33	0
3173797	99	50	39,7	cyclictest	0	-21	swapper/0	21:55:15	0
3173798	99	49	42,5	cyclictest	3290043	-21	cut	22:45:16	1
3173798	99	49	42,5	cyclictest	3286245	-21	ld	22:40:27	1
3173798	99	49	41,6	cyclictest	3365272	-21	uname	00:10:35	1
3173798	99	49	41,6	cyclictest	3351573	-21	fschecks_count	23:55:18	1
3173798	99	49	39,8	cyclictest	3190749	-21	latency_hist	20:15:01	1
3173797	99	49	42,5	cyclictest	3187236	-21	fschecks_time	20:00:19	0
3173797	99	49	42,5	cyclictest	3187236	-21	fschecks_time	20:00:19	0
3173797	99	49	41,6	cyclictest	3361838	-21	kworker/u4:12+events_unbound	00:17:00	0
3173797	99	49	39,8	cyclictest	3180702	-21	fschecks_count	19:35:23	0
3173797	99	49	39,8	cyclictest	3180702	-21	fschecks_count	19:35:22	0
3173797	99	49	38,9	cyclictest	3338672	-21	if_eth0	23:40:21	0
3173798	99	48	39,7	cyclictest	3317994	-21	kworker/u4:9+events_unbound	23:30:15	1
3173797	99	48	38,8	cyclictest	53	-21	kswapd0	23:00:01	0
3173797	99	48	27,18	cyclictest	0	-21	swapper/0	22:15:19	0
3173798	99	47	37,8	cyclictest	3347010	-21	aten_r7power_po	23:50:16	1
3173797	99	47	40,5	cyclictest	3236325	-21	latency_hist	21:45:01	0
3173797	99	47	39,6	cyclictest	3307440	-21	/usr/sbin/munin	23:05:41	0
3173798	99	46	39,5	cyclictest	3250928	-21	sendmail_mailqu	22:00:36	1
3173798	99	46	35,8	cyclictest	3377296	-21	latency_hist	00:25:01	1
3173798	99	46	26,5	cyclictest	3220768	-21	kworker/u4:1+events_unbound	22:05:41	1
3173797	99	46	41,3	cyclictest	3225335	-21	kworker/u4:7+events_unbound	21:36:43	0
3173797	99	46	38,6	cyclictest	3201212	-21	aten_r7power_po	20:55:18	0
3173797	99	46	37,7	cyclictest	3191301	-21	kernelversion	20:15:21	0
3173797	99	46	29,15	cyclictest	0	-21	swapper/0	20:00:00	0
3173798	99	45	39,4	cyclictest	3209681	-21	/usr/sbin/munin	21:15:17	1
3173798	99	45	38,5	cyclictest	3204807	-21	awk	21:10:01	1
3173798	99	45	36,7	cyclictest	3178861	-21	systemd	19:26:19	1
3173797	99	45	38,5	cyclictest	3236948	-21	gltestperf	21:45:20	0
3173797	99	45	38,5	cyclictest	3192215	-21	aten2__	20:20:23	0
3173797	99	45	38,5	cyclictest	3188496	-21	fschecks_time	20:05:19	0
3173797	99	45	37,6	cyclictest	3211594	-21	kworker/u4:7+events_unbound	21:21:59	0
3173797	99	45	36,7	cyclictest	3312252	-21	fschecks_time	23:10:18	0
3173797	99	45	35,8	cyclictest	3241105	-21	ssh	21:50:17	0
3173797	99	45	32,9	cyclictest	3184174	-21	modprobe	19:50:01	0
3173797	99	45	23,7	cyclictest	3314191	-21	kworker/u4:5-xprtiod	23:35:25	0
3173798	99	44	36,6	cyclictest	3325145	-21	diskmemload	23:25:15	1
3173797	99	44	38,4	cyclictest	0	-21	swapper/0	21:10:29	0
3173797	99	44	37,5	cyclictest	3197403	-21	aten_r7power_po	20:40:15	0
3173797	99	44	37,5	cyclictest	3189652	-21	aten_r7power_po	20:10:21	0
3173797	99	44	36,6	cyclictest	3276731	-21	aten_r7power_en	22:30:12	0
3173797	99	44	35,7	cyclictest	3351752	-21	gltestperf	23:55:20	0
3173798	99	43	37,4	cyclictest	3316232	-21	apt-get	23:15:13	1
3173798	99	43	37,4	cyclictest	3316232	-21	apt-get	23:15:13	1
3173798	99	43	36,5	cyclictest	3201546	-21	gltestperf	20:55:22	1
3173798	99	43	36,5	cyclictest	3194563	-21	cron	20:30:00	1
3173798	99	43	36,5	cyclictest	3189366	-21	latency_hist	20:10:01	1
3173798	99	43	36,5	cyclictest	3176346	-21	munin-run	19:20:00	1
3173798	99	43	35,6	cyclictest	0	-21	swapper/1	20:55:01	1
3173798	99	43	34,7	cyclictest	3196375	-21	head	20:35:21	1
3173798	99	43	33,8	cyclictest	3177634	-21	munin-run	19:24:59	1
3173797	99	43	36,4	cyclictest	0	-21	swapper/0	22:50:30	0
3173797	99	43	35,6	cyclictest	3189258	-21	kworker/u4:14-rpciod	20:30:37	0
3173798	99	42	35,5	cyclictest	3195086	-21	fschecks_time	20:30:19	1
3173798	99	42	35,5	cyclictest	3180218	-21	apt-config	19:35:01	1
3173798	99	42	27,9	cyclictest	3173727	-21	kworker/u4:7+events_unbound	20:00:29	1
3173798	99	42	27,9	cyclictest	3173727	-21	kworker/u4:7+events_unbound	20:00:29	1
3173797	99	42	34,5	cyclictest	3211594	-21	kworker/u4:7-writeback	21:26:39	0
3173798	99	41	34,5	cyclictest	3191901	-21	kworker/u4:0+events_unbound	20:20:00	1
3173797	99	41	33,6	cyclictest	3193718	-21	fschecks_count	20:25:19	0
3173798	99	40	33,5	cyclictest	3184349	-21	apt-get	19:50:12	1
3173797	99	40	27,10	cyclictest	3176071	-21	sort	19:15:35	0
3173797	99	39	32,4	cyclictest	0	-21	swapper/0	20:50:17	0
3173798	99	38	31,5	cyclictest	3181832	-21	aten2__	19:40:23	1
3173797	99	38	30,5	cyclictest	3177438	-21	timerwakeupswit	19:20:37	0
3173797	99	34	21,9	cyclictest	3173885	-21	ls	19:10:02	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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