OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #4

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 376 highest latencies:

System rackeslot4s.osadl.org (updated Thu Mar 26, 2026 00:44:06)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2679728	99	48	45,2	cyclictest	2788526	-21	kworker/u8:2+flush-259:0	21:00:23	3
2679723	99	40	37,2	cyclictest	2908270	-21	kworker/u8:2+events_unbound	23:45:23	1
2679723	99	35	32,2	cyclictest	2720936	-21	kworker/u8:4+events_unbound	21:40:15	1
2679723	99	35	31,3	cyclictest	2939841	-21	apt-get	23:20:11	1
2679723	99	35	31,3	cyclictest	2908270	-21	kworker/u8:2+events_unbound	22:55:23	1
2679719	99	35	32,2	cyclictest	2939601	-21	kworker/u8:3+flush-259:0	23:25:15	0
2679723	99	34	31,2	cyclictest	2720936	-21	kworker/u8:4+events_unbound	20:45:20	1
2679723	99	34	30,3	cyclictest	2829751	-21	kworker/u8:2+events_unbound	21:45:15	1
2679723	99	34	30,3	cyclictest	2690281	-21	apt-get	19:20:12	1
2679719	99	34	32,1	cyclictest	1	-21	systemd	20:20:00	0
2679723	99	33	30,2	cyclictest	2788526	-21	kworker/u8:2+events_unbound	21:00:22	1
2679723	99	33	30,2	cyclictest	2720936	-21	kworker/u8:4+events_unbound	21:20:26	1
2679723	99	32	29,2	cyclictest	2626182	-21	kworker/u8:0+events_unbound	19:30:24	1
2679723	99	32	27,2	cyclictest	2720936	-21	kworker/u8:4+events_unbound	20:05:25	1
2679723	99	32	26,3	cyclictest	2767553	-21	kworker/u8:0+events_unbound	21:10:22	1
2679726	99	30	27,2	cyclictest	2720936	-21	kworker/u8:4+flush-259:0	20:00:25	2
2679723	99	30	27,2	cyclictest	2886809	-21	kworker/u8:0+events_unbound	22:48:23	1
2679723	99	30	26,3	cyclictest	2908270	-21	kworker/u8:2+events_unbound	23:30:23	1
2679723	99	30	26,3	cyclictest	2829751	-21	kworker/u8:2+events_unbound	21:54:24	1
2679726	99	29	26,2	cyclictest	2767553	-21	kworker/u8:0+flush-259:0	21:25:00	2
2679726	99	29	25,3	cyclictest	2928837	-21	apt-get	23:10:00	2
2679723	99	29	26,2	cyclictest	2976248	-21	kworker/u8:3+events_unbound	00:25:21	1
2679723	99	29	26,2	cyclictest	2908270	-21	kworker/u8:2+events_unbound	00:05:22	1
2679723	99	29	25,3	cyclictest	2731435	-21	apt-get	20:00:11	1
2679723	99	28	24,3	cyclictest	2908270	-21	kworker/u8:2+events_unbound	00:03:33	1
2679719	99	28	24,3	cyclictest	2767929	-21	/usr/sbin/munin	20:35:14	0
2679726	99	27	24,2	cyclictest	2908270	-21	kworker/u8:2+flush-259:0	23:50:00	2
2679723	99	27	24,2	cyclictest	2690041	-21	kworker/u8:1+events_unbound	19:45:24	1
2679723	99	27	23,3	cyclictest	2965720	-21	kworker/u8:0+events_unbound	00:17:12	1
2679723	99	27	23,3	cyclictest	2955440	-21	kworker/u8:1+events_unbound	23:50:27	1
2679726	99	26	20,4	cyclictest	2856388	-21	diskstats	22:00:14	2
2679723	99	26	23,2	cyclictest	2720936	-21	kworker/u8:4+events_unbound	22:00:16	1
2679723	99	26	23,2	cyclictest	2720936	-21	kworker/u8:4+events_unbound	21:17:22	1
2679723	99	26	22,3	cyclictest	2965720	-21	kworker/u8:0+events_unbound	00:35:14	1
2679726	99	25	19,4	cyclictest	252	-21	systemd-journal	20:20:00	2
2679723	99	25	22,3	cyclictest	2866258	-21	kworker/u8:1+events_unbound	22:14:23	1
2679723	99	25	22,2	cyclictest	2939601	-21	kworker/u8:3+events_unbound	23:25:14	1
2679723	99	25	22,2	cyclictest	2908270	-21	kworker/u8:2+events_unbound	23:05:26	1
2679723	99	25	22,2	cyclictest	2829751	-21	kworker/u8:2+events_unbound	22:17:22	1
2679723	99	25	22,2	cyclictest	2814159	-21	kworker/u8:3+events_unbound	21:25:51	1
2679723	99	25	22,2	cyclictest	2690041	-21	kworker/u8:1+events_unbound	20:15:14	1
2679723	99	25	21,3	cyclictest	2929497	-21	kworker/u8:0+events_unbound	23:13:22	1
2679723	99	25	21,3	cyclictest	2626182	-21	kworker/u8:0+events_unbound	19:39:23	1
2679719	99	25	22,2	cyclictest	2783157	-21	kworker/u8:1+flush-259:0	21:09:59	0
2679719	99	25	21,3	cyclictest	2690041	-21	kworker/u8:1+flush-259:0	20:20:22	0
2679726	99	24	19,4	cyclictest	2945003	-21	apt-get	23:25:12	2
2679723	99	24	21,2	cyclictest	2626182	-21	kworker/u8:0+events_unbound	19:10:15	1
2679723	99	24	20,3	cyclictest	2976248	-21	kworker/u8:3+events_unbound	23:57:34	1
2679723	99	24	20,3	cyclictest	2976248	-21	kworker/u8:3+events_unbound	00:24:43	1
2679723	99	24	20,3	cyclictest	2788526	-21	kworker/u8:2+events_unbound	21:05:17	1
2679719	99	24	0,22	cyclictest	509	-21	rs:main		0
2679728	99	23	18,4	cyclictest	2997082	-21	diskstats	00:15:14	3
2679728	99	23	18,3	cyclictest	252	-21	systemd-journal	19:40:01	3
2679728	99	23	17,4	cyclictest	2875676	-21	ntpq	22:15:22	3
2679728	99	23	17,4	cyclictest	252	-21	systemd-journal	19:15:00	3
2679726	99	23	19,3	cyclictest	2829751	-21	kworker/u8:2+flush-259:0	22:10:00	2
2679723	99	23	20,2	cyclictest	2908270	-21	kworker/u8:2+events_unbound	00:10:24	1
2679723	99	23	20,2	cyclictest	2866258	-21	kworker/u8:1+events_unbound	22:50:18	1
2679723	99	23	20,2	cyclictest	2720936	-21	kworker/u8:4+events_unbound	20:28:23	1
2679723	99	23	20,2	cyclictest	2626182	-21	kworker/u8:0+events_unbound	19:26:25	1
2679726	99	22	19,2	cyclictest	2908270	-21	kworker/u8:2+flush-259:0	22:55:16	2
2679726	99	22	18,3	cyclictest	2788526	-21	kworker/u8:2+flush-259:0	21:05:24	2
2679726	99	22	18,2	cyclictest	509	-21	rs:main		2
2679726	99	22	16,4	cyclictest	252	-21	systemd-journal	20:15:01	2
2679723	99	22	19,2	cyclictest	2908270	-21	kworker/u8:2+events_unbound	23:15:18	1
2679723	99	22	19,2	cyclictest	2829751	-21	kworker/u8:2+events_unbound	22:27:24	1
2679723	99	22	19,2	cyclictest	2788526	-21	kworker/u8:2+events_unbound	20:56:21	1
2679728	99	21	18,2	cyclictest	2829728	-21	turbostat.cron	21:35:00	3
2679728	99	21	18,2	cyclictest	2829728	-21	turbostat.cron	21:34:59	3
2679728	99	21	17,3	cyclictest	2986609	-21	/usr/sbin/munin	00:05:14	3
2679728	99	21	17,3	cyclictest	2626182	-21	kworker/u8:0+flush-259:0	19:25:01	3
2679723	99	21	18,2	cyclictest	2866258	-21	kworker/u8:1+events_unbound	22:22:23	1
2679723	99	21	18,2	cyclictest	2767553	-21	kworker/u8:0+events_unbound	20:43:23	1
2679723	99	21	18,2	cyclictest	2720936	-21	kworker/u8:4+events_unbound	22:07:24	1
2679723	99	21	17,3	cyclictest	2939601	-21	kworker/u8:3+events_unbound	23:35:44	1
2679723	99	21	17,3	cyclictest	2893061	-21	kworker/u8:3+events_unbound	22:37:24	1
2679728	99	20	16,3	cyclictest	2976248	-21	kworker/u8:3+flush-259:0	00:25:25	3
2679728	99	20	16,3	cyclictest	2876783	-21	apt-get	22:20:09	3
2679728	99	20	16,3	cyclictest	2829751	-21	kworker/u8:2+flush-259:0	21:50:22	3
2679728	99	20	16,3	cyclictest	2690041	-21	kworker/u8:1+flush-259:0	19:30:00	3
2679723	99	20	17,2	cyclictest	2783157	-21	kworker/u8:1+events_unbound	20:54:23	1
2679723	99	20	17,2	cyclictest	2720936	-21	kworker/u8:4+events_unbound	19:55:40	1
2679723	99	20	16,3	cyclictest	2866258	-21	kworker/u8:1+flush-259:0	22:40:21	1
2679723	99	20	15,3	cyclictest	2918756	-21	kworker/u8:3+events_unbound	23:04:15	1
2679719	99	20	17,2	cyclictest	2690041	-21	kworker/u8:1+events_unbound	19:45:16	0
2679719	99	20	16,3	cyclictest	2929497	-21	kworker/u8:0+events_unbound	23:10:15	0
2679719	99	20	14,5	cyclictest	2929033	-21	cp	23:10:00	0
2679728	99	19	15,3	cyclictest	2767553	-21	kworker/u8:0+flush-259:0	20:49:59	3
2679726	99	19	15,3	cyclictest	2892634	-21	/usr/sbin/munin	22:35:14	2
2679726	99	19	15,3	cyclictest	2741534	-21	kworker/u8:2+flush-259:0	20:30:17	2
2679719	99	19	14,4	cyclictest	2960843	-21	apt-get	23:40:11	0
2679719	99	19	14,3	cyclictest	2767691	-21	latency_hist	20:35:01	0
2679719	99	19	12,5	cyclictest	2689194	-21	ntpq	19:15:22	0
2679728	99	18	12,4	cyclictest	2908254	-21	latency_hist	22:50:01	3
2679726	99	18	15,2	cyclictest	3012113	-21	latency_hist	00:29:59	2
2679726	99	18	13,4	cyclictest	2929362	-21	cat	23:10:01	2
2679723	99	18	16,2	cyclictest	2886809	-21	kworker/u8:0+events_unbound	22:34:56	1
2679723	99	18	15,3	cyclictest	2908270	-21	kworker/u8:2+events_unbound	23:41:22	1
2679723	99	18	15,2	cyclictest	2690041	-21	kworker/u8:1+events_unbound	19:40:39	1
2679723	99	18	15,2	cyclictest	2651057	-21	kworker/u8:2+events_unbound	19:15:27	1
2679723	99	18	15,2	cyclictest	2626182	-21	kworker/u8:0+events_unbound	19:50:18	1
2679723	99	18	11,3	cyclictest	2767553	-21	kworker/u8:0+events_unbound	20:37:46	1
2679719	99	18	12,4	cyclictest	2891110	-21	ntpq	22:30:20	0
2679719	99	18	12,4	cyclictest	2798638	-21	latency_hist	21:05:01	0
2679719	99	18	0,3	cyclictest	2793486	-21	idleruntime-cro	20:59:59	0
2679728	99	17	13,3	cyclictest	2929698	-21	diskstats	23:10:13	3
2679728	99	17	13,3	cyclictest	2720936	-21	kworker/u8:4+flush-259:0	21:20:24	3
2679728	99	17	13,2	cyclictest	0	-21	swapper/3	20:35:01	3
2679728	99	17	11,4	cyclictest	2705427	-21	latency_hist	19:35:00	3
2679726	99	17	13,3	cyclictest	2908270	-21	kworker/u8:2+flush-259:0	23:40:26	2
2679723	99	17	14,2	cyclictest	2976248	-21	kworker/u8:3+events_unbound	00:34:44	1
2679723	99	17	14,2	cyclictest	2720936	-21	kworker/u8:4+events_unbound	21:57:23	1
2679723	99	17	14,2	cyclictest	2690041	-21	kworker/u8:1+events_unbound	20:21:26	1
2679719	99	17	14,2	cyclictest	603	50	irq/132-enp0s29f1:rx-0	23:30:21	0
2679719	99	17	14,2	cyclictest	603	50	irq/132-enp0s29f1:rx-0	00:10:16	0
2679719	99	17	13,3	cyclictest	2965720	-21	kworker/u8:0+flush-259:0	00:30:06	0
2679728	99	16	14,1	cyclictest	0	-21	swapper/3	20:05:01	3
2679726	99	16	14,1	cyclictest	0	-21	swapper/2	00:35:00	2
2679723	99	16	5,2	cyclictest	19	1	rcu_preempt	21:30:25	1
2679723	99	16	5,2	cyclictest	19	1	rcu_preempt	21:30:24	1
2679723	99	16	13,2	cyclictest	2626182	-21	kworker/u8:0+events_unbound	20:10:27	1
2679723	99	16	12,3	cyclictest	2720936	-21	kworker/u8:4+events_unbound	21:36:32	1
2679719	99	16	9,5	cyclictest	2865297	-21	ntpq	22:05:20	0
2679719	99	16	14,1	cyclictest	603	50	irq/132-enp0s29f1:rx-0	00:00:23	0
2679719	99	16	13,2	cyclictest	603	50	irq/132-enp0s29f1:rx-0	23:55:12	0
2679719	99	16	13,2	cyclictest	603	50	irq/132-enp0s29f1:rx-0	19:30:22	0
2679719	99	16	12,3	cyclictest	2955655	-21	/usr/sbin/munin	23:35:14	0
2679719	99	16	12,3	cyclictest	2840077	-21	kworker/u8:0+flush-259:0	21:55:25	0
2679719	99	16	12,3	cyclictest	2720936	-21	kworker/u8:4+flush-259:0	20:40:16	0
2679719	99	16	11,4	cyclictest	2715726	-21	latency_hist	19:45:01	0
2679728	99	15	9,5	cyclictest	2955416	-21	latency_hist	23:34:59	3
2679728	99	15	12,2	cyclictest	2976248	-21	kworker/u8:3+flush-259:0	00:15:00	3
2679728	99	15	12,2	cyclictest	2866258	-21	kworker/u8:1+flush-259:0	22:55:01	3
2679728	99	15	12,2	cyclictest	0	-21	swapper/3	21:10:00	3
2679728	99	15	11,3	cyclictest	2866219	-21	turbostat	22:14:55	3
2679728	99	15	10,4	cyclictest	2845191	-21	latency_hist	21:50:01	3
2679728	99	15	10,3	cyclictest	2746677	-21	latency_hist	20:15:00	3
2679728	99	15	0,5	cyclictest	2894222	1	kthreadcore	22:35:17	3
2679726	99	15	9,4	cyclictest	2907389	-21	ntpq	22:45:21	2
2679726	99	15	9,4	cyclictest	2798633	-21	awk	21:04:59	2
2679726	99	15	12,2	cyclictest	2720936	-21	kworker/u8:4+flush-259:0	20:05:24	2
2679726	99	15	11,3	cyclictest	2902655	-21	apt-get	22:45:01	2
2679726	99	15	11,3	cyclictest	2804071	-21	apt-get	21:10:10	2
2679723	99	15	13,1	cyclictest	0	-21	swapper/1	20:35:00	1
2679719	99	15	13,1	cyclictest	603	50	irq/132-enp0s29f1:rx-0	22:52:23	0
2679719	99	15	13,1	cyclictest	603	50	irq/132-enp0s29f1:rx-0	22:21:39	0
2679719	99	15	13,1	cyclictest	603	50	irq/132-enp0s29f1:rx-0	22:15:24	0
2679719	99	15	13,1	cyclictest	603	50	irq/132-enp0s29f1:rx-0	21:50:15	0
2679719	99	15	13,1	cyclictest	603	50	irq/132-enp0s29f1:rx-0	21:30:18	0
2679719	99	15	13,1	cyclictest	603	50	irq/132-enp0s29f1:rx-0	21:30:17	0
2679719	99	15	13,1	cyclictest	603	50	irq/132-enp0s29f1:rx-0	20:05:16	0
2679719	99	15	13,1	cyclictest	603	50	irq/132-enp0s29f1:rx-0	00:25:19	0
2679719	99	15	12,2	cyclictest	603	50	irq/132-enp0s29f1:rx-0	23:50:11	0
2679719	99	15	12,2	cyclictest	603	50	irq/132-enp0s29f1:rx-0	23:21:28	0
2679719	99	15	12,2	cyclictest	603	50	irq/132-enp0s29f1:rx-0	22:25:20	0
2679719	99	15	12,2	cyclictest	603	50	irq/132-enp0s29f1:rx-0	21:20:18	0
2679719	99	15	12,2	cyclictest	603	50	irq/132-enp0s29f1:rx-0	19:50:22	0
2679719	99	15	11,2	cyclictest	0	-21	swapper/0	22:40:01	0
2679719	99	15	10,3	cyclictest	2908270	-21	kworker/u8:2+events_unbound	00:05:20	0
2679726	99	14	9,4	cyclictest	2891963	-21	apt-get	22:35:00	2
2679726	99	14	8,5	cyclictest	2845616	-21	diskstats	21:50:12	2
2679726	99	14	11,2	cyclictest	0	-21	swapper/2	19:10:24	2
2679719	99	14	9,4	cyclictest	2690041	-21	kworker/u8:1+flush-259:0	19:35:26	0
2679719	99	14	13,1	cyclictest	603	50	irq/132-enp0s29f1:rx-0	22:46:34	0
2679719	99	14	12,2	cyclictest	611	50	irq/133-enp0s29f1:tx-0	00:35:13	0
2679719	99	14	12,1	cyclictest	603	50	irq/132-enp0s29f1:rx-0	20:51:18	0
2679719	99	14	12,1	cyclictest	603	50	irq/132-enp0s29f1:rx-0	19:25:17	0
2679719	99	14	11,2	cyclictest	603	50	irq/132-enp0s29f1:rx-0	21:35:23	0
2679728	99	13	9,3	cyclictest	3006755	-21	journal-offline	00:22:32	3
2679728	99	13	9,3	cyclictest	2690041	-21	kworker/u8:1+flush-259:0	20:20:28	3
2679728	99	13	9,2	cyclictest	0	-21	swapper/3	22:09:59	3
2679728	99	13	8,4	cyclictest	2740563	-21	ntpq	20:05:19	3
2679728	99	13	11,1	cyclictest	2945424	-21	irqcore	23:25:16	3
2679728	99	13	11,1	cyclictest	0	-21	swapper/3	21:44:59	3
2679728	99	13	10,2	cyclictest	2971	-21	cron	23:05:00	3
2679728	99	13	10,2	cyclictest	2785903	-21	kthreadcore	20:50:17	3
2679726	99	13	8,4	cyclictest	252	-21	systemd-journal	00:40:00	2
2679726	99	13	7,5	cyclictest	2834883	-21	latency_hist	21:40:00	2
2679726	99	13	10,2	cyclictest	2689543	-21	unixbench_multi	19:15:24	2
2679726	99	13	10,1	cyclictest	0	-21	swapper/2	20:30:01	2
2679719	99	13	9,3	cyclictest	603	50	irq/132-enp0s29f1:rx-0	22:40:25	0
2679719	99	13	11,1	cyclictest	603	50	irq/132-enp0s29f1:rx-0	23:45:13	0
2679719	99	13	11,1	cyclictest	603	50	irq/132-enp0s29f1:rx-0	23:16:57	0
2679719	99	13	11,1	cyclictest	603	50	irq/132-enp0s29f1:rx-0	21:10:59	0
2679719	99	13	10,2	cyclictest	603	50	irq/132-enp0s29f1:rx-0	20:00:13	0
2679728	99	12	9,2	cyclictest	3017604	-21	cpuspeed_turbos	00:35:12	3
2679726	99	12	9,2	cyclictest	2976455	-21	fschecks_count	23:55:12	2
2679726	99	12	9,2	cyclictest	2960106	-21	unixbench_multi	23:35:24	2
2679726	99	12	9,2	cyclictest	2866258	-21	kworker/u8:1+flush-259:0	22:50:16	2
2679726	99	12	9,2	cyclictest	2773499	-21	irqcore	20:40:16	2
2679726	99	12	8,3	cyclictest	2720936	-21	kworker/u8:4+flush-259:0	20:36:02	2
2679726	99	12	7,4	cyclictest	2871402	-21	latency_hist	22:15:01	2
2679726	99	12	10,1	cyclictest	0	-21	swapper/2	23:05:00	2
2679728	99	11	9,1	cyclictest	0	-21	swapper/3	23:15:18	3
2679726	99	11	9,1	cyclictest	0	-21	swapper/2	22:30:01	2
2679726	99	11	8,2	cyclictest	2705760	-21	cpuspeed_turbos	19:35:13	2
2679726	99	11	7,3	cyclictest	2788526	-21	kworker/u8:2+flush-259:0	21:15:25	2
2679726	99	11	7,3	cyclictest	2722175	-21	tr	19:50:16	2
2679728	99	10	7,2	cyclictest	2976248	-21	kworker/u8:3+flush-259:0	00:05:00	3
2679728	99	10	5,3	cyclictest	2970734	-21	sshd	23:48:21	3
2679726	99	10	8,1	cyclictest	0	-21	swapper/2	20:55:15	2
2679726	99	10	7,2	cyclictest	3005569	-21	kthreadcore	00:20:19	2
2679726	99	10	6,3	cyclictest	2730512	-21	sed	19:55:24	2
2679726	99	10	6,3	cyclictest	2690041	-21	kworker/u8:1+flush-259:0	19:40:51	2
2679726	99	10	6,3	cyclictest	252	-21	systemd-journal	20:50:29	2
2679728	99	9	5,3	cyclictest	2788526	-21	kworker/u8:2+events_unbound	20:55:20	3
2679728	99	8	0,6	cyclictest	2976285	-21	taskset	23:55:12	3
2679728	99	7	1,4	cyclictest	832	-21	runrttasks	23:50:12	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2021-09-01 - 00:34