OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #6

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8
Special All - All RT - Optimization - Ethernet - Thumbnails - Next

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 792 highest latencies:

System rackeslot6s.osadl.org (updated Thu Aug 13, 2026 00:44:50)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2945099	99	106	11,91	cyclictest	2945917	-21	munin-node	19:15:01	3
2945099	99	106	11,91	cyclictest	2945917	-21	munin-node	19:15:01	3
2945098	99	83	4,40	cyclictest	0	-21	swapper/2	21:45:01	2
2945098	99	76	27,40	cyclictest	0	-21	swapper/2	23:40:27	2
2945098	99	59	26,28	cyclictest	0	-21	swapper/2	22:45:29	2
2945098	99	59	26,28	cyclictest	0	-21	swapper/2	22:45:28	2
2945098	99	59	21,31	cyclictest	0	-21	swapper/2	22:10:27	2
2945098	99	59	15,5	cyclictest	0	-21	swapper/2	23:55:29	2
2945098	99	58	32,20	cyclictest	2980504	-21	kworker/u8:0-ext4-rsv-conversion	23:10:01	2
2945098	99	58	16,6	cyclictest	0	-21	swapper/2	21:00:27	2
2945098	99	57	16,4	cyclictest	0	-21	swapper/2	19:30:28	2
2945098	99	56	36,16	cyclictest	2998208	-21	cron	00:19:59	2
2945098	99	56	15,7	cyclictest	0	-21	swapper/2	20:25:26	2
2945098	99	55	21,8	cyclictest	2947872	-21	dropbear	19:24:51	2
2945098	99	55	15,5	cyclictest	0	-21	swapper/2	22:50:27	2
2945095	99	55	44,8	cyclictest	2954637	-21	munin-plugin-st	20:05:00	1
2945093	99	55	4,48	cyclictest	0	-21	swapper/0	21:05:26	0
2945098	99	54	23,27	cyclictest	1258	-21	in:imuxsock	22:30:01	2
2945098	99	54	19,4	cyclictest	0	-21	swapper/2	23:25:26	2
2945098	99	54	15,5	cyclictest	0	-21	swapper/2	19:25:28	2
2945093	99	54	1,51	cyclictest	0	-21	swapper/0	20:50:11	0
2945093	99	54	1,51	cyclictest	0	-21	swapper/0	20:50:10	0
2945098	99	53	25,24	cyclictest	0	-21	swapper/2	23:20:18	2
2945098	99	53	18,31	cyclictest	0	-21	swapper/2	21:20:19	2
2945098	99	53	17,5	cyclictest	0	-21	swapper/2	21:10:29	2
2945093	99	53	42,5	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	22:30:02	0
2945093	99	53	34,16	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	21:20:27	0
2945093	99	53	1,46	cyclictest	0	-21	swapper/0	20:25:11	0
2945098	99	52	20,4	cyclictest	0	-21	swapper/2	21:15:28	2
2945098	99	52	20,4	cyclictest	0	-21	swapper/2	21:15:28	2
2945098	99	52	18,5	cyclictest	0	-21	swapper/2	21:25:17	2
2945093	99	52	48,2	cyclictest	0	-21	swapper/0	21:05:00	0
2945093	99	52	44,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	22:10:17	0
2945098	99	51	20,4	cyclictest	0	-21	swapper/2	00:24:59	2
2945098	99	51	18,4	cyclictest	0	-21	swapper/2	23:30:26	2
2945098	99	51	18,4	cyclictest	0	-21	swapper/2	23:30:26	2
2945093	99	51	4,6	cyclictest	2987214	-21	users	23:10:30	0
2945093	99	51	44,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	00:05:00	0
2945093	99	51	4,44	cyclictest	0	-21	swapper/0	20:15:30	0
2945093	99	51	42,5	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	23:05:29	0
2945093	99	51	35,11	cyclictest	0	-21	swapper/0	22:35:27	0
2945098	99	50	9,8	cyclictest	0	-21	swapper/2	00:30:31	2
2945098	99	50	1,8	cyclictest	2970283	-21	/usr/sbin/munin	21:35:23	2
2945098	99	50	17,6	cyclictest	2993097	-21	grep	23:45:27	2
2945098	99	50	17,5	cyclictest	2945668	-21	ptp4l	19:10:26	2
2945098	99	50	17,5	cyclictest	2945668	-21	ptp4l	19:10:26	2
2945098	99	50	16,7	cyclictest	2987131	-21	grep	23:10:29	2
2945098	99	50	13,4	cyclictest	0	-21	swapper/2	19:40:01	2
2945098	99	50	10,14	cyclictest	1675	50	irq/134-8000000.ethernet-tx2	20:00:27	2
2945098	99	49	40,6	cyclictest	2996531	-21	munin-plugin-st	00:10:00	2
2945098	99	49	17,3	cyclictest	0	-21	swapper/2	21:50:19	2
2945093	99	49	42,4	cyclictest	206	50	irq/252-8000000.ethernet	23:40:29	0
2945093	99	49	42,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	00:10:20	0
2945093	99	49	42,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	00:10:20	0
2945093	99	49	41,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	20:00:18	0
2945098	99	48	29,16	cyclictest	1675	50	irq/134-8000000.ethernet-tx2	23:00:00	2
2945098	99	48	18,5	cyclictest	0	-21	swapper/2	21:05:19	2
2945098	99	48	17,4	cyclictest	0	-21	swapper/2	00:40:01	2
2945098	99	48	17,26	cyclictest	0	-21	swapper/2	22:35:02	2
2945098	99	48	15,5	cyclictest	0	-21	swapper/2	22:45:01	2
2945098	99	48	15,3	cyclictest	0	-21	swapper/2	23:50:25	2
2945093	99	48	38,5	cyclictest	0	-21	swapper/0	19:15:02	0
2945093	99	48	33,10	cyclictest	0	-21	swapper/0	22:50:29	0
2945093	99	48	30,15	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	21:45:22	0
2945093	99	48	1,4	cyclictest	2956300	-21	grep	20:10:27	0
2945093	99	48	1,4	cyclictest	2956300	-21	grep	20:10:27	0
2945093	99	48	1,15	cyclictest	0	-21	swapper/0	21:45:00	0
2945098	99	47	16,5	cyclictest	0	-21	swapper/2	22:00:22	2
2945098	99	47	16,4	cyclictest	0	-21	swapper/2	20:15:34	2
2945098	99	47	15,7	cyclictest	2952301	-21	apt-get	19:50:16	2
2945098	99	47	15,7	cyclictest	2952301	-21	apt-get	19:50:15	2
2945098	99	47	14,8	cyclictest	2961273	-21	cut	20:40:24	2
2945098	99	47	10,8	cyclictest	0	-21	swapper/2	20:50:28	2
2945098	99	47	10,8	cyclictest	0	-21	swapper/2	20:50:27	2
2945095	99	47	35,9	cyclictest	2981156	-21	sendmail	22:40:00	1
2945095	99	47	34,9	cyclictest	0	-21	swapper/1	00:20:29	1
2945095	99	47	34,8	cyclictest	0	-21	swapper/1	20:49:59	1
2945093	99	47	38,6	cyclictest	13	1	ktimers/0	20:40:10	0
2945093	99	47	32,9	cyclictest	0	-21	swapper/0	19:35:27	0
2945098	99	46	35,7	cyclictest	0	-21	swapper/2	20:15:02	2
2945098	99	46	35,7	cyclictest	0	-21	swapper/2	20:15:01	2
2945093	99	46	35,8	cyclictest	2948723	-21	munin-plugin-st	19:30:01	0
2945093	99	46	35,7	cyclictest	0	-21	swapper/0	00:00:00	0
2945098	99	45	37,5	cyclictest	2955405	-21	grep	20:05:28	2
2945098	99	45	15,8	cyclictest	31	1	ktimers/2	20:20:28	2
2945095	99	45	33,8	cyclictest	0	-21	swapper/1	21:20:01	1
2945095	99	45	33,8	cyclictest	0	-21	swapper/1	21:20:01	1
2945095	99	45	31,9	cyclictest	0	-21	swapper/1	21:50:27	1
2945095	99	45	30,10	cyclictest	0	-21	swapper/1	20:40:28	1
2945093	99	45	33,7	cyclictest	2958092	-21	grep	20:20:28	0
2945093	99	45	1,3	cyclictest	0	-21	swapper/0	00:20:29	0
2945098	99	44	14,6	cyclictest	0	-21	swapper/2	22:35:25	2
2945095	99	44	31,8	cyclictest	0	-21	swapper/1	21:45:27	1
2945095	99	44	29,11	cyclictest	0	-21	swapper/1	23:05:28	1
2945095	99	44	28,11	cyclictest	0	-21	swapper/1	22:15:27	1
2945093	99	44	34,7	cyclictest	2975916	-21	grep	22:05:29	0
2945093	99	44	31,6	cyclictest	2988830	-21	unixbench_multi	23:20:29	0
2945093	99	44	28,14	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	21:15:16	0
2945093	99	44	28,14	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	21:15:15	0
2945093	99	44	2,6	cyclictest	2981979	-21	users	22:40:28	0
2945093	99	44	2,3	cyclictest	2953195	-21	ssh	19:55:16	0
2945093	99	44	1,5	cyclictest	2969173	-21	apt-config	21:30:01	0
2945098	99	43	29,7	cyclictest	0	-21	swapper/2	19:40:30	2
2945098	99	43	21,6	cyclictest	2963440	-21	/usr/sbin/munin	20:55:29	2
2945098	99	43	21,18	cyclictest	0	-21	swapper/2	21:50:01	2
2945098	99	43	15,6	cyclictest	2996901	-21	dropbear	00:10:20	2
2945098	99	43	15,6	cyclictest	2996901	-21	dropbear	00:10:19	2
2945098	99	43	1,24	cyclictest	0	-21	swapper/2	23:00:15	2
2945095	99	43	33,5	cyclictest	0	-21	swapper/1	22:50:28	1
2945095	99	43	29,9	cyclictest	0	-21	swapper/1	20:30:42	1
2945095	99	43	2,29	cyclictest	2955575	-21	cmp	20:10:01	1
2945093	99	43	1,39	cyclictest	2979633	-21	dropbear	22:30:15	0
2945093	99	43	1,39	cyclictest	2952889	-21	unixbench_singl	19:50:28	0
2945093	99	43	1,39	cyclictest	2952889	-21	unixbench_singl	19:50:28	0
2945098	99	42	15,6	cyclictest	2978091	-21	dropbear	22:20:20	2
2945095	99	42	33,5	cyclictest	2948676	-21	grep	19:25:31	1
2945095	99	42	31,5	cyclictest	0	-21	swapper/1	22:35:01	1
2945095	99	42	30,8	cyclictest	0	-21	swapper/1	19:44:59	1
2945095	99	42	28,9	cyclictest	0	-21	swapper/1	23:55:29	1
2945095	99	42	28,9	cyclictest	0	-21	swapper/1	00:10:28	1
2945095	99	42	28,9	cyclictest	0	-21	swapper/1	00:10:28	1
2945095	99	42	0,30	cyclictest	0	-21	swapper/1	21:45:00	1
2945093	99	42	36,4	cyclictest	0	-21	swapper/0	00:30:22	0
2945093	99	42	35,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	19:44:59	0
2945093	99	42	34,5	cyclictest	2960215	-21	sh	20:35:21	0
2945093	99	42	33,4	cyclictest	2982879	-21	latency_hist	22:50:01	0
2945093	99	42	33,4	cyclictest	2982879	-21	latency_hist	22:50:00	0
2945093	99	42	32,6	cyclictest	13	1	ktimers/0	20:30:36	0
2945093	99	42	32,5	cyclictest	2947507	-21	uname	19:20:23	0
2945093	99	42	1,39	cyclictest	0	-21	swapper/0	23:45:18	0
2945093	99	42	1,38	cyclictest	2972902	-21	fschecks_count	21:50:18	0
2945093	99	42	1,37	cyclictest	0	-21	swapper/0	20:55:12	0
2945098	99	41	16,4	cyclictest	0	-21	swapper/2	19:45:31	2
2945095	99	41	35,4	cyclictest	2982948	-21	apt-key	22:50:01	1
2945095	99	41	35,4	cyclictest	2982948	-21	apt-key	22:50:01	1
2945095	99	41	30,7	cyclictest	0	-21	swapper/1	21:30:28	1
2945095	99	41	26,9	cyclictest	0	-21	swapper/1	20:25:30	1
2945095	99	41	23,10	cyclictest	0	-21	swapper/1	21:25:22	1
2945093	99	41	30,7	cyclictest	2955371	-21	grep	20:05:29	0
2945093	99	41	2,36	cyclictest	0	-21	swapper/0	23:35:01	0
2945093	99	41	2,36	cyclictest	0	-21	swapper/0	23:35:01	0
2945098	99	40	13,7	cyclictest	0	-21	swapper/2	00:25:29	2
2945098	99	40	11,9	cyclictest	1653	-21	lldpd	23:15:22	2
2945098	99	40	11,9	cyclictest	1653	-21	lldpd	23:15:22	2
2945095	99	40	32,5	cyclictest	2965776	-21	munin-plugin-st	21:10:01	1
2945095	99	40	29,7	cyclictest	0	-21	swapper/1	21:10:29	1
2945093	99	40	4,31	cyclictest	2966537	-21	grep	21:10:28	0
2945093	99	40	34,3	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	21:35:14	0
2945093	99	40	29,7	cyclictest	2974215	-21	grep	21:55:28	0
2945093	99	40	25,13	cyclictest	0	-21	swapper/0	19:45:30	0
2945093	99	40	2,35	cyclictest	2946537	-21	fschecks_time	19:15:20	0
2945093	99	40	23,15	cyclictest	0	-21	swapper/0	23:00:17	0
2945093	99	40	1,8	cyclictest	2977408	-21	ps	22:15:24	0
2945093	99	40	1,37	cyclictest	0	-21	swapper/0	21:30:03	0
2945093	99	40	1,36	cyclictest	2987684	-21	if_eth1	23:15:21	0
2945093	99	40	1,36	cyclictest	2987684	-21	if_eth1	23:15:21	0
2945095	99	39	33,3	cyclictest	2950407	-21	sendmail	19:40:00	1
2945095	99	39	29,6	cyclictest	2952855	-21	grep	19:50:28	1
2945095	99	39	29,6	cyclictest	2952855	-21	grep	19:50:28	1
2945095	99	39	29,5	cyclictest	0	-21	swapper/1	19:15:01	1
2945095	99	39	29,5	cyclictest	0	-21	swapper/1	19:15:01	1
2945095	99	39	27,9	cyclictest	0	-21	swapper/1	22:55:27	1
2945095	99	39	26,8	cyclictest	0	-21	swapper/1	00:05:32	1
2945093	99	39	32,3	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	19:15:01	0
2945093	99	39	27,8	cyclictest	0	-21	swapper/0	23:25:29	0
2945093	99	39	23,10	cyclictest	0	-21	swapper/0	22:05:00	0
2945093	99	39	1,4	cyclictest	0	-21	swapper/0	22:20:18	0
2945093	99	39	1,3	cyclictest	2999533	-21	irqstats	00:25:24	0
2945093	99	39	1,35	cyclictest	0	-21	swapper/0	19:30:24	0
2945095	99	38	28,6	cyclictest	0	-21	swapper/1	00:00:17	1
2945095	99	38	26,7	cyclictest	0	-21	swapper/1	19:20:27	1
2945095	99	38	25,8	cyclictest	0	-21	swapper/1	20:10:27	1
2945095	99	38	25,8	cyclictest	0	-21	swapper/1	20:10:27	1
2945095	99	38	25,10	cyclictest	0	-21	swapper/1	19:30:28	1
2945095	99	38	24,9	cyclictest	0	-21	swapper/1	19:45:31	1
2945095	99	38	20,9	cyclictest	0	-21	swapper/1	23:35:27	1
2945095	99	38	16,12	cyclictest	2991676	-21	/usr/sbin/munin	23:40:18	1
2945093	99	38	28,7	cyclictest	0	-21	swapper/0	00:09:59	0
2945093	99	38	2,2	cyclictest	0	-21	swapper/0	23:55:01	0
2945095	99	37	23,9	cyclictest	0	-21	swapper/1	22:20:28	1
2945095	99	37	18,16	cyclictest	22	-21	rcuc/1	20:00:01	1
2945095	99	36	26,5	cyclictest	0	-21	swapper/1	23:45:17	1
2945093	99	36	1,3	cyclictest	0	-21	swapper/0	20:45:13	0
2945093	99	36	1,33	cyclictest	0	-21	swapper/0	00:39:33	0
2945093	99	36	1,2	cyclictest	2990820	-21	apt-get	23:35:14	0
2945098	99	35	2,30	cyclictest	2969443	-21	/usr/sbin/munin	21:30:21	2
2945095	99	35	25,7	cyclictest	0	-21	swapper/1	20:55:29	1
2945095	99	35	24,7	cyclictest	0	-21	swapper/1	22:25:19	1
2945095	99	35	23,9	cyclictest	0	-21	swapper/1	23:25:20	1
2945095	99	35	1,29	cyclictest	0	-21	swapper/1	00:25:22	1
2945098	99	34	23,6	cyclictest	0	-21	swapper/2	00:02:35	2
2945095	99	34	24,6	cyclictest	0	-21	swapper/1	20:20:28	1
2945095	99	34	24,6	cyclictest	0	-21	swapper/1	20:15:33	1
2945095	99	34	24,6	cyclictest	0	-21	swapper/1	00:40:00	1
2945095	99	34	24,5	cyclictest	0	-21	swapper/1	20:35:29	1
2945095	99	34	23,6	cyclictest	0	-21	swapper/1	00:30:28	1
2945095	99	34	22,6	cyclictest	2987140	-21	grep	23:10:28	1
2945095	99	34	20,11	cyclictest	0	-21	swapper/1	23:20:29	1
2945093	99	34	24,7	cyclictest	13	1	ktimers/0	00:15:24	0
2945093	99	34	24,6	cyclictest	0	-21	swapper/0	22:55:27	0
2945098	99	33	23,6	cyclictest	0	-21	swapper/2	20:45:27	2
2945098	99	33	19,7	cyclictest	2946524	-21	sh	19:15:19	2
2945098	99	33	1,27	cyclictest	0	-21	swapper/2	23:35:15	2
2945095	99	33	23,5	cyclictest	0	-21	swapper/1	22:40:19	1
2945095	99	33	22,7	cyclictest	2968222	-21	grep	21:20:30	1
2945095	99	33	22,7	cyclictest	0	-21	swapper/1	21:35:29	1
2945095	99	33	21,8	cyclictest	0	-21	swapper/1	21:55:28	1
2945095	99	33	21,8	cyclictest	0	-21	swapper/1	19:15:29	1
2945095	99	33	20,9	cyclictest	0	-21	swapper/1	22:05:20	1
2945098	99	32	1,26	cyclictest	0	-21	swapper/2	22:15:13	2
2945095	99	32	24,6	cyclictest	2976732	-21	unixbench_multi	22:10:28	1
2945095	99	32	22,7	cyclictest	2993353	-21	/usr/sbin/munin	23:50:21	1
2945095	99	32	22,6	cyclictest	0	-21	swapper/1	23:15:28	1
2945095	99	32	22,6	cyclictest	0	-21	swapper/1	23:15:27	1
2945095	99	32	1,25	cyclictest	0	-21	swapper/1	23:00:09	1
2945095	99	31	21,5	cyclictest	0	-21	swapper/1	00:15:18	1
2945095	99	31	1,28	cyclictest	0	-21	swapper/1	23:30:25	1
2945095	99	31	1,28	cyclictest	0	-21	swapper/1	23:30:25	1
2945093	99	31	2,4	cyclictest	2945105	-21	cat	19:10:00	0
2945098	99	30	20,7	cyclictest	0	-21	swapper/2	20:30:39	2
2945098	99	29	21,5	cyclictest	0	-21	swapper/2	21:55:22	2
2945095	99	29	1,25	cyclictest	1660	-21	snmpd	21:00:39	1
2945098	99	28	1,25	cyclictest	0	-21	swapper/2	19:55:15	2
2945095	99	28	19,5	cyclictest	0	-21	swapper/1	20:50:20	1
2945095	99	28	19,5	cyclictest	0	-21	swapper/1	20:50:20	1
2945095	99	26	14,8	cyclictest	0	-21	swapper/1	22:00:29	1
2945098	99	24	16,7	cyclictest	31	1	ktimers/2	20:35:29	2
2945095	99	24	17,3	cyclictest	2945104	-21	latency_hist	19:10:01	1
2945098	99	21	6,10	cyclictest	0	-21	swapper/2	22:05:20	2
2945098	99	17	12,4	cyclictest	2945192	-21	sed	19:10:00	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2020-10-04 - 12:21