OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #7, slot #2

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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 Wed Apr 22, 2026 00:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3352256	99	104	94,7	cyclictest	3522027	-21	kworker/u4:3+events_unbound	23:52:03	0
3352256	99	101	93,6	cyclictest	3451726	-21	kworker/u4:10+events_unbound	22:36:55	0
3352256	99	98	84,6	cyclictest	3526463	-21	kworker/u4:11+events_unbound	00:32:07	0
3352256	99	98	83,7	cyclictest	3377865	-21	kworker/u4:19+events_unbound	21:11:41	0
3352256	99	97	88,6	cyclictest	3416278	-21	kworker/u4:9+events_unbound	22:01:50	0
3352256	99	87	79,6	cyclictest	3398906	-21	kworker/u4:1+events_unbound	21:46:47	0
3352256	99	85	78,5	cyclictest	3381702	-21	kworker/u4:1+events_unbound	21:16:43	0
3352257	99	82	76,4	cyclictest	3411762	-21	kworker/u4:7+events_unbound	21:56:48	1
3352257	99	81	73,6	cyclictest	3447887	-21	kworker/u4:9+events_unbound	22:31:53	1
3352256	99	80	72,6	cyclictest	3394383	-21	kworker/u4:10+events_unbound	21:26:44	0
3352256	99	75	67,5	cyclictest	3368820	-21	kworker/u4:15+events_unbound	20:15:01	0
3352256	99	73	66,5	cyclictest	3352190	-21	kworker/u4:5+events_unbound	20:01:35	0
3352256	99	73	66,5	cyclictest	3352190	-21	kworker/u4:5+events_unbound	20:01:34	0
3352256	99	71	62,6	cyclictest	3352253	-21	cyclictest	21:39:27	0
3352257	99	69	62,5	cyclictest	3469512	-21	kworker/u4:4+events_unbound	22:46:54	1
3352256	99	69	61,6	cyclictest	3352189	-21	kworker/u4:4+events_unbound	19:58:34	0
3352257	99	66	56,7	cyclictest	3526463	-21	kworker/u4:11+events_unbound	00:00:01	1
3352257	99	66	56,7	cyclictest	3526463	-21	kworker/u4:11+events_unbound	00:00:00	1
3352256	99	66	59,5	cyclictest	3513198	-21	kworker/u4:15+events_unbound	23:40:04	0
3352256	99	66	57,6	cyclictest	3482890	-21	kworker/u4:8+events_unbound	23:06:57	0
3352256	99	66	54,9	cyclictest	53	-21	kswapd0	23:55:20	0
3352256	99	66	54,9	cyclictest	53	-21	kswapd0	23:55:20	0
3352256	99	66	49,5	cyclictest	3354761	-21	kworker/u4:10+events_unbound	19:50:01	0
3352257	99	64	50,9	cyclictest	37	-21	kcompactd0	23:12:49	1
3352257	99	64	50,9	cyclictest	37	-21	kcompactd0	23:12:48	1
3352256	99	63	50,10	cyclictest	3489494	-21	aten_r7power_po	23:10:17	0
3352256	99	63	50,10	cyclictest	3489494	-21	aten_r7power_po	23:10:16	0
3352256	99	63	41,6	cyclictest	3552489	-21	kworker/u4:4+events_unbound	00:25:03	0
3352256	99	62	52,8	cyclictest	3354761	-21	kworker/u4:10+events_unbound	19:42:43	0
3352256	99	62	46,6	cyclictest	3469513	-21	kworker/u4:7+events_unbound	22:55:02	0
3352256	99	61	26,10	cyclictest	3481518	-21	ssh	23:00:35	0
3352257	99	60	52,6	cyclictest	3530866	-21	kworker/u4:15+events_unbound	00:12:03	1
3352257	99	60	51,7	cyclictest	3380401	-21	systemd	20:56:39	1
3352256	99	60	53,5	cyclictest	3526463	-21	kworker/u4:11+events_unbound	00:37:08	0
3352257	99	59	51,6	cyclictest	3416944	-21	kworker/u4:11+events_unbound	22:06:51	1
3352256	99	59	53,4	cyclictest	3137602	-21	kworker/u4:3+events_unbound	19:31:32	0
3352256	99	59	50,6	cyclictest	3438824	-21	kworker/u4:1+events_unbound	22:21:52	0
3352257	99	58	2,46	cyclictest	3472543	-21	ntpq	22:50:25	1
3352256	99	58	48,8	cyclictest	53	-21	kswapd0	22:30:12	0
3352256	99	58	4,45	cyclictest	3410760	-21	ssh	21:40:29	0
3352256	99	57	50,5	cyclictest	3434335	-21	kworker/u4:5+events_unbound	22:41:53	0
3352256	99	57	33,18	cyclictest	53	-21	kswapd0	23:45:12	0
3352257	99	56	49,5	cyclictest	3564144	-21	/usr/sbin/munin	00:35:24	1
3352257	99	56	48,6	cyclictest	3356064	-21	kworker/u4:16+events_unbound	20:31:35	1
3352257	99	56	47,7	cyclictest	3381702	-21	kworker/u4:1+events_unbound	21:06:42	1
3352256	99	56	49,5	cyclictest	3468749	-21	/usr/sbin/munin	22:45:40	0
3352256	99	56	42,9	cyclictest	37	-21	kcompactd0	19:16:29	0
3352256	99	55	46,6	cyclictest	3419733	-21	ntpq	21:50:34	0
3352256	99	55	44,8	cyclictest	0	-21	swapper/0	00:20:13	0
3352257	99	54	46,6	cyclictest	3356064	-21	kworker/u4:16+events_unbound	20:26:36	1
3352257	99	54	46,5	cyclictest	3368819	-21	kworker/u4:14+events_unbound	20:20:00	1
3352257	99	54	46,5	cyclictest	3356064	-21	kworker/u4:16+events_unbound	21:01:40	1
3352257	99	54	45,6	cyclictest	0	-21	swapper/1	22:25:25	1
3352256	99	54	33,15	cyclictest	3381721	-21	modprobe	21:05:01	0
3352257	99	53	45,6	cyclictest	3446500	-21	/usr/sbin/munin	22:20:39	1
3352257	99	53	45,5	cyclictest	3343406	-21	kworker/u4:0+events_unbound	19:46:34	1
3352257	99	53	43,8	cyclictest	3559429	-21	/usr/sbin/munin	00:30:17	1
3352256	99	53	46,5	cyclictest	3522027	-21	kworker/u4:3+events_unbound	00:05:02	0
3352256	99	53	45,6	cyclictest	3544220	-21	kworker/u4:2+events_unbound	00:16:40	0
3352257	99	52	44,6	cyclictest	3421469	-21	kworker/u4:3+events_unbound	22:05:01	1
3352257	99	52	44,5	cyclictest	3484775	-21	latency_hist	23:05:01	1
3352257	99	52	43,6	cyclictest	3511145	-21	dpkg	23:35:12	1
3352257	99	52	43,5	cyclictest	0	-21	swapper/1	23:25:40	1
3352256	99	52	4,16	cyclictest	3476216	-21	ssh	22:55:08	0
3352256	99	52	41,6	cyclictest	3425334	-21	kworker/u4:12+events_unbound	22:15:04	0
3352257	99	51	43,6	cyclictest	3385326	-21	kworker/u4:2+events_unbound	21:15:01	1
3352256	99	51	45,4	cyclictest	3434335	-21	kworker/u4:5+events_unbound	22:08:59	0
3352256	99	51	42,6	cyclictest	3352253	-21	cyclictest	00:10:07	0
3352256	99	51	29,18	cyclictest	0	-21	swapper/0	21:20:27	0
3352256	99	50	43,5	cyclictest	3482886	-21	kworker/u4:1+events_unbound	23:36:59	0
3352256	99	50	40,7	cyclictest	3507762	-21	/usr/sbin/munin	23:30:36	0
3352256	99	50	40,7	cyclictest	3454082	-21	apt-config	22:30:00	0
3352256	99	50	28,19	cyclictest	0	-21	swapper/0	19:35:35	0
3352257	99	49	43,4	cyclictest	3419576	-21	ld	21:50:27	1
3352257	99	49	42,5	cyclictest	3550563	-21	/usr/sbin/munin	00:20:15	1
3352257	99	49	41,6	cyclictest	3354761	-21	kworker/u4:10+events_unbound	19:41:32	1
3352256	99	49	39,8	cyclictest	3380488	-21	latency_hist	21:00:01	0
3352256	99	49	39,6	cyclictest	0	-21	swapper/0	23:15:42	0
3352256	99	49	29,17	cyclictest	0	-21	swapper/0	21:30:19	0
3352256	99	49	26,14	cyclictest	3440756	-21	cron	22:15:00	0
3352257	99	48	42,4	cyclictest	3526464	-21	kworker/u4:12+events_unbound	00:00:43	1
3352257	99	48	41,5	cyclictest	3377029	-21	sort	20:45:18	1
3352257	99	48	40,5	cyclictest	3398909	-21	kworker/u4:6+events_unbound	21:45:35	1
3352257	99	48	40,5	cyclictest	3375844	-21	fschecks_time	20:40:18	1
3352257	99	48	35,9	cyclictest	0	-21	swapper/1	00:05:44	1
3352256	99	48	39,6	cyclictest	3359869	-21	kworker/u4:1+events_unbound	20:10:01	0
3352256	99	48	35,10	cyclictest	0	-21	swapper/0	20:25:08	0
3352257	99	47	40,5	cyclictest	3513198	-21	kworker/u4:15+rpciod	23:40:20	1
3352257	99	47	39,5	cyclictest	3357765	-21	fschecks_count	19:30:19	1
3352256	99	47	39,6	cyclictest	3353482	-21	kworker/u4:7+events_unbound	19:21:30	0
3352256	99	47	37,7	cyclictest	0	-21	swapper/0	23:20:41	0
3352256	99	47	35,7	cyclictest	0	-21	swapper/0	21:55:27	0
3352256	99	47	25,18	cyclictest	0	-21	swapper/0	23:25:44	0
3352257	99	46	40,4	cyclictest	3458749	-21	acpi	22:35:14	1
3352257	99	46	39,5	cyclictest	3489129	-21	latency_hist	23:10:02	1
3352257	99	46	39,5	cyclictest	3482886	-21	kworker/u4:1-rpciod	23:45:28	1
3352257	99	46	39,5	cyclictest	3392667	-21	gltestperf	21:20:22	1
3352257	99	46	38,6	cyclictest	3374248	-21	aten2__	20:35:17	1
3352257	99	46	38,5	cyclictest	0	-21	swapper/1	21:15:16	1
3352257	99	46	37,7	cyclictest	3546250	-21	cpu	00:15:17	1
3352257	99	46	37,7	cyclictest	3365337	-21	aten_r7power_vo	20:00:17	1
3352257	99	46	37,7	cyclictest	3365337	-21	aten_r7power_vo	20:00:17	1
3352257	99	46	36,7	cyclictest	0	-21	swapper/1	23:15:28	1
3352257	99	46	33,11	cyclictest	0	-21	swapper/1	22:10:33	1
3352257	99	45	39,4	cyclictest	3525124	-21	ssh	23:50:36	1
3352257	99	45	37,6	cyclictest	3506860	-21	aten_r7power_en	23:30:16	1
3352257	99	45	37,6	cyclictest	3441515	-21	gltestperf	22:15:21	1
3352256	99	45	37,6	cyclictest	3533209	-21	/usr/sbin/munin	00:00:20	0
3352256	99	45	36,7	cyclictest	3376627	-21	munin-plugin-st	20:45:00	0
3352256	99	45	36,6	cyclictest	3371174	-21	cat	20:20:36	0
3352257	99	44	38,4	cyclictest	3405531	-21	ssh	21:35:13	1
3352257	99	44	36,6	cyclictest	3499338	-21	sed	23:20:41	1
3352257	99	44	36,6	cyclictest	3366478	-21	aten2__	20:05:17	1
3352257	99	44	36,6	cyclictest	1	-21	systemd	21:41:45	1
3352257	99	44	27,5	cyclictest	3398909	-21	kworker/u4:6+events_unbound	21:31:45	1
3352256	99	44	36,6	cyclictest	3357340	-21	cron	19:30:01	0
3352256	99	44	35,7	cyclictest	3378199	-21	aten_r7power_vo	20:50:16	0
3352256	99	44	35,6	cyclictest	3369956	-21	unixbench-2d	20:15:38	0
3352256	99	44	33,8	cyclictest	3375292	-21	kworker/u4:6-rpciod	20:45:21	0
3352257	99	43	36,5	cyclictest	3555183	-21	fschecks_count	00:25:19	1
3352257	99	43	35,6	cyclictest	3400880	-21	latency_hist	21:30:02	1
3352257	99	43	35,6	cyclictest	3362435	-21	kworker/u4:2+events_unbound	19:50:31	1
3352257	99	43	35,5	cyclictest	3425334	-21	kworker/u4:12-rpciod	22:40:35	1
3352257	99	43	28,12	cyclictest	0	-21	swapper/1	19:20:01	1
3352256	99	43	35,6	cyclictest	3374020	-21	kworker/u4:2+events_unbound	20:36:37	0
3352257	99	42	36,4	cyclictest	3359778	-21	unixbench_multi	19:35:37	1
3352256	99	42	34,5	cyclictest	3362871	-21	fschecks_count	19:50:18	0
3352257	99	41	30,8	cyclictest	3371583	-21	latency_hist	20:25:02	1
3352257	99	40	31,6	cyclictest	0	-21	swapper/1	22:55:38	1
3352257	99	39	32,5	cyclictest	3356671	-21	gltestperf	19:25:19	1
3352257	99	39	31,5	cyclictest	3352694	-21	fschecks_count	19:10:18	1
3352256	99	39	25,10	cyclictest	3352263	-21	grep	19:10:02	0
3352257	99	38	31,4	cyclictest	0	-21	swapper/1	20:50:12	1
3352257	99	38	29,6	cyclictest	0	-21	swapper/1	20:15:01	1
3352257	99	38	29,6	cyclictest	0	-21	swapper/1	19:20:19	1
3352256	99	38	30,6	cyclictest	0	-21	swapper/0	20:30:20	0
3352256	99	37	28,7	cyclictest	3382111	-21	grep	21:05:17	0
3352256	99	37	28,7	cyclictest	3352825	-21	gltestperf	19:10:20	0
3352257	99	34	24,8	cyclictest	0	-21	swapper/1	19:55:19	1
3352257	99	31	22,6	cyclictest	0	-21	swapper/1	19:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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