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 376 highest latencies:

System rack7slot2.osadl.org (updated Wed Mar 25, 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
3403838	99	106	97,6	cyclictest	3463804	-21	kworker/u4:4+events_unbound	09:54:07	0
3403838	99	106	94,9	cyclictest	3450483	-21	kworker/u4:3+events_unbound	09:29:04	0
3403838	99	105	97,6	cyclictest	3507898	-21	kworker/u4:12+events_unbound	10:34:15	0
3403838	99	102	93,6	cyclictest	3551847	-21	kworker/u4:8+events_unbound	11:29:25	0
3403838	99	99	92,5	cyclictest	3591654	-21	kworker/u4:10+events_unbound	12:09:33	0
3403839	99	96	64,29	cyclictest	53	-21	kswapd0	09:40:31	1
3403838	99	94	86,6	cyclictest	3609087	-21	kworker/u4:2+events_unbound	12:29:38	0
3403838	99	90	83,5	cyclictest	3437584	-21	kworker/u4:2+events_unbound	09:24:02	0
3403838	99	90	82,6	cyclictest	3538523	-21	kworker/u4:3+events_unbound	11:09:20	0
3403838	99	89	81,6	cyclictest	3555643	-21	kworker/u4:10+events_unbound	11:34:27	0
3403838	99	88	80,6	cyclictest	3485460	-21	kworker/u4:7+events_unbound	10:09:11	0
3403838	99	85	77,6	cyclictest	3569061	-21	kworker/u4:14+events_unbound	12:14:35	0
3403839	99	84	53,27	cyclictest	0	-21	swapper/1	09:35:23	1
3403838	99	84	77,5	cyclictest	3578061	-21	kworker/u4:6+events_unbound	12:19:36	0
3403838	99	84	77,5	cyclictest	3578061	-21	kworker/u4:6+events_unbound	12:19:35	0
3403838	99	81	74,5	cyclictest	3542959	-21	kworker/u4:6+events_unbound	11:24:23	0
3403838	99	80	72,6	cyclictest	3503397	-21	kworker/u4:4+events_unbound	11:04:20	0
3403838	99	79	71,6	cyclictest	3498950	-21	kworker/u4:1+events_unbound	10:24:12	0
3403838	99	78	61,12	cyclictest	53	-21	kswapd0	09:40:32	0
3403838	99	76	70,4	cyclictest	3403763	-21	kworker/u4:4+events_unbound	07:33:45	0
3403839	99	75	36,36	cyclictest	3500839	-21	latency_hist	10:25:02	1
3403838	99	75	67,6	cyclictest	3604576	-21	kworker/u4:12+events_unbound	12:39:39	0
3403838	99	75	64,7	cyclictest	3406345	-21	kworker/u4:12+events_unbound	09:14:01	0
3403838	99	74	67,5	cyclictest	3423058	-21	kworker/u4:10+events_unbound	08:38:56	0
3403838	99	74	66,5	cyclictest	3421760	-21	kworker/u4:0+events_unbound	09:10:00	0
3403839	99	73	41,29	cyclictest	3415899	-21	fschecks_time	07:55:21	1
3403838	99	73	59,5	cyclictest	3392211	-21	kworker/u4:11+events_unbound	08:05:01	0
3403838	99	73	59,5	cyclictest	3392211	-21	kworker/u4:11+events_unbound	08:05:00	0
3403838	99	72	65,5	cyclictest	3494451	-21	kworker/u4:9+events_unbound	10:44:17	0
3403838	99	72	64,6	cyclictest	3392211	-21	kworker/u4:11+events_unbound	07:18:41	0
3403839	99	71	65,4	cyclictest	3407641	-21	kworker/u4:14+events_unbound	07:25:00	1
3403839	99	71	39,30	cyclictest	3440722	-21	timerwakeupswit	09:15:45	1
3403839	99	71	36,6	cyclictest	3527875	-21	fschecks_count	10:55:17	1
3403839	99	71	31,4	cyclictest	0	-21	swapper/1	10:10:16	1
3403838	99	70	62,6	cyclictest	3459353	-21	kworker/u4:9+events_unbound	09:39:04	0
3403839	99	69	32,8	cyclictest	3519253	-21	tail	10:45:20	1
3403839	99	69	31,6	cyclictest	0	-21	swapper/1	10:40:32	1
3403839	99	67	61,4	cyclictest	3485460	-21	kworker/u4:7+events_unbound	10:15:21	1
3403839	99	67	32,7	cyclictest	3475621	-21	xargs	09:55:36	1
3403839	99	67	25,7	cyclictest	0	-21	swapper/1	08:52:30	1
3403839	99	66	34,28	cyclictest	0	-21	swapper/1	12:30:25	1
3403839	99	66	31,6	cyclictest	0	-21	swapper/1	08:05:01	1
3403839	99	66	31,6	cyclictest	0	-21	swapper/1	08:05:01	1
3403839	99	66	29,6	cyclictest	0	-21	swapper/1	12:15:33	1
3403839	99	66	29,6	cyclictest	0	-21	swapper/1	12:15:32	1
3403838	99	66	59,5	cyclictest	3406345	-21	kworker/u4:12+events_unbound	07:38:46	0
3403838	99	66	46,15	cyclictest	3439493	-21	ssh	09:15:09	0
3403839	99	65	31,7	cyclictest	3540465	-21	latency_hist	11:10:02	1
3403839	99	65	28,5	cyclictest	3534076	-21	kworker/u4:2+rpciod	11:45:01	1
3403838	99	65	57,5	cyclictest	53	-21	kswapd0	10:30:01	0
3403839	99	64	57,5	cyclictest	3534076	-21	kworker/u4:2+events_unbound	11:19:24	1
3403839	99	64	56,6	cyclictest	3450481	-21	kworker/u4:0+events_unbound	10:05:12	1
3403839	99	64	34,5	cyclictest	3474267	-21	kworker/u4:7	09:55:00	1
3403838	99	64	56,5	cyclictest	53	-21	kswapd0	12:05:01	0
3403838	99	64	56,5	cyclictest	3578060	-21	kworker/u4:1+events_unbound	11:55:00	0
3403838	99	64	46,13	cyclictest	3496496	-21	latency_hist	10:20:01	0
3403839	99	63	35,24	cyclictest	0	-21	swapper/1	11:55:32	1
3403839	99	63	31,6	cyclictest	0	-21	swapper/1	11:30:29	1
3403839	99	62	52,7	cyclictest	3569061	-21	kworker/u4:14-rpciod	12:00:59	1
3403838	99	62	56,4	cyclictest	3411448	-21	kworker/u4:17+events_unbound	07:50:01	0
3403838	99	62	54,6	cyclictest	3569061	-21	kworker/u4:14+events_unbound	11:50:00	0
3403838	99	61	42,17	cyclictest	3555644	-21	kworker/u4:11+events_unbound	11:39:59	0
3403838	99	60	53,5	cyclictest	3416648	-21	kworker/u4:9+events_unbound	08:43:57	0
3403838	99	60	52,6	cyclictest	3480033	-21	mailstats	10:00:37	0
3403838	99	60	47,10	cyclictest	3534076	-21	kworker/u4:2+events_unbound	11:55:30	0
3403839	99	59	51,6	cyclictest	3594769	-21	unixbench-2d	12:10:39	1
3403838	99	59	53,5	cyclictest	3412748	-21	kworker/u4:4+events_unbound	08:33:54	0
3403839	99	58	48,8	cyclictest	3408917	-21	systemd	07:28:44	1
3403838	99	58	32,18	cyclictest	0	-21	swapper/0	10:50:11	0
3403839	99	57	28,7	cyclictest	0	-21	swapper/1	07:15:20	1
3403839	99	56	47,6	cyclictest	3573603	-21	kworker/u4:5+events_unbound	11:49:30	1
3403838	99	56	49,5	cyclictest	3421762	-21	kworker/u4:3+events_unbound	08:23:54	0
3403839	99	54	46,6	cyclictest	1066	-21	snmpd	12:36:56	1
3403839	99	54	46,5	cyclictest	3564487	-21	kworker/u4:6+events_unbound	11:39:28	1
3403839	99	54	45,6	cyclictest	3544659	-21	ssh	11:15:00	1
3403838	99	54	46,6	cyclictest	3613596	-21	kworker/u4:0+events_unbound	12:34:38	0
3403838	99	54	46,6	cyclictest	3412748	-21	kworker/u4:4+events_unbound	07:43:48	0
3403838	99	54	34,17	cyclictest	0	-21	swapper/0	11:40:39	0
3403838	99	53	46,5	cyclictest	3516290	-21	kworker/u4:14+events_unbound	10:56:59	0
3403839	99	52	6,37	cyclictest	3444020	-21	ssh	09:20:20	1
3403839	99	52	45,5	cyclictest	3510628	-21	ntp_kernel_pll_	10:35:28	1
3403838	99	52	43,7	cyclictest	3404144	-21	cpu	07:10:16	0
3403839	99	51	43,6	cyclictest	3407641	-21	kworker/u4:14+events_unbound	08:08:51	1
3403838	99	51	44,5	cyclictest	3540690	-21	aten_r7power_cu	11:10:16	0
3403838	99	51	40,8	cyclictest	3430720	-21	cron	08:55:00	0
3403838	99	51	33,16	cyclictest	3420521	-21	idleruntime-cro	08:15:00	0
3403839	99	50	44,4	cyclictest	3504632	-21	sshd	10:29:12	1
3403839	99	50	43,4	cyclictest	3534076	-21	kworker/u4:2+events_unbound	12:05:16	1
3403838	99	50	43,5	cyclictest	3603540	-21	/usr/sbin/munin	12:20:38	0
3403838	99	50	43,5	cyclictest	3520780	-21	kworker/u4:2+events_unbound	10:49:00	0
3403838	99	50	38,6	cyclictest	3421762	-21	kworker/u4:3+events_unbound	08:28:54	0
3403838	99	50	31,6	cyclictest	3507246	-21	kworker/u4:7+events_unbound	10:35:19	0
3403838	99	49	41,6	cyclictest	3466466	-21	sh	09:45:29	0
3403838	99	49	40,6	cyclictest	3421523	-21	xargs	08:15:35	0
3403838	99	49	3,42	cyclictest	0	-21	swapper/0	07:50:21	0
3403838	99	49	30,16	cyclictest	3485459	-21	kworker/u4:6-rpciod	10:10:15	0
3403838	99	49	27,20	cyclictest	3545176	-21	cpu	11:15:17	0
3403839	99	48	40,6	cyclictest	3578061	-21	kworker/u4:6+events_unbound	11:54:31	1
3403839	99	48	10,25	cyclictest	3524022	-21	ssh	10:50:35	1
3403838	99	47	38,6	cyclictest	3453399	-21	ntp_kernel_pll_	09:30:29	0
3403838	99	47	37,7	cyclictest	3406835	-21	fschecks_count	07:20:19	0
3403839	99	46	40,4	cyclictest	0	-21	swapper/1	08:30:24	1
3403839	99	46	39,4	cyclictest	0	-21	swapper/1	09:29:54	1
3403839	99	46	38,5	cyclictest	3425598	-21	kworker/u4:15+events_unbound	09:05:01	1
3403839	99	46	37,7	cyclictest	3426876	-21	systemd	08:38:54	1
3403839	99	46	37,6	cyclictest	3421530	-21	timerandwakeup	08:15:36	1
3403839	99	46	35,7	cyclictest	3429458	-21	modprobe	08:50:01	1
3403838	99	46	39,5	cyclictest	3416608	-21	unixbench_singl	07:55:41	0
3403839	99	45	38,5	cyclictest	3414155	-21	latency_hist	07:50:02	1
3403839	99	45	37,6	cyclictest	3406345	-21	kworker/u4:12+events_unbound	09:05:03	1
3403839	99	45	36,7	cyclictest	3506298	-21	sh	10:30:32	1
3403839	99	45	36,7	cyclictest	3438502	-21	sshd	09:14:00	1
3403839	99	45	31,10	cyclictest	0	-21	swapper/1	07:50:36	1
3403838	99	45	38,5	cyclictest	3475516	-21	mailstats	09:55:36	0
3403838	99	45	37,5	cyclictest	3433070	-21	timerandwakeup	09:00:36	0
3403839	99	44	35,5	cyclictest	0	-21	swapper/1	11:25:16	1
3403839	99	44	30,12	cyclictest	0	-21	swapper/1	12:20:13	1
3403839	99	44	17,8	cyclictest	3607862	-21	processes	12:25:36	1
3403839	99	43	36,5	cyclictest	3479041	-21	aten2__	10:00:15	1
3403839	99	43	36,5	cyclictest	3431217	-21	fschecks_time	08:55:18	1
3403839	99	43	35,6	cyclictest	3423468	-21	df_abs	08:25:19	1
3403839	99	43	34,7	cyclictest	3411457	-21	systemd	07:38:45	1
3403839	99	43	31,10	cyclictest	3420166	-21	mailstats	08:10:36	1
3403838	99	43	36,5	cyclictest	3408842	-21	unixbench_multi	07:25:37	0
3403838	99	43	34,7	cyclictest	3428489	-21	aten_r7power_vo	08:45:16	0
3403839	99	42	34,5	cyclictest	3547393	-21	kworker/u4:7-rpciod	11:20:29	1
3403839	99	42	34,5	cyclictest	3450481	-21	kworker/u4:0-xprtiod	09:30:27	1
3403839	99	42	31,6	cyclictest	53	-21	kswapd0	09:45:19	1
3403839	99	42	22,9	cyclictest	17	1	rcu_preempt	08:40:34	1
3403838	99	42	34,6	cyclictest	3418485	-21	fschecks_time	08:05:21	0
3403839	99	40	31,6	cyclictest	0	-21	swapper/1	11:00:35	1
3403839	99	39	30,5	cyclictest	0	-21	swapper/1	07:15:00	1
3403839	99	39	29,7	cyclictest	0	-21	swapper/1	07:10:00	1
3403839	99	39	28,9	cyclictest	0	-21	swapper/1	07:40:15	1
3403839	99	38	29,7	cyclictest	3422051	-21	aten_r7power_en	08:20:16	1
3403838	99	38	30,5	cyclictest	3403763	-21	kworker/u4:4-rpciod	07:10:02	0
3403839	99	37	30,5	cyclictest	3406345	-21	kworker/u4:12-rpciod	07:30:20	1
3403838	99	36	29,4	cyclictest	0	-21	swapper/0	08:55:19	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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