OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #f, slot #7

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

Click here to display the system's profile data.

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, lowest P state: performance
Compare latency of primary with shadow system

Characteristics of the 100 highest latencies:

System rackfslot7s.osadl.org (updated Thu Aug 13, 2026 00:44:17)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3614466	99	3871	17,3849	cyclictest	3627707	-21	kworker/1:2+events	19:55:12	1
3614466	99	3584	14,3565	cyclictest	3670677	-21	kworker/1:2+events	22:00:22	1
3614459	99	3359	16,3339	cyclictest	3654174	-21	kworker/0:0+events	21:15:16	0
3614475	99	3062	13,3044	cyclictest	3658903	-21	kworker/3:1+events	21:35:19	3
3614466	99	2985	14,2967	cyclictest	3683501	-21	kworker/1:1+events	22:49:43	1
3614475	99	2975	13,2958	cyclictest	3658903	-21	kworker/3:1+events	21:25:28	3
3614471	99	2970	14,2953	cyclictest	3639228	-21	kworker/2:1+events	20:35:01	2
3614466	99	2930	9,2917	cyclictest	3624750	-21	kworker/1:0+events	19:40:21	1
3614459	99	2887	14,2869	cyclictest	3664084	-21	kworker/0:2+events	21:40:21	0
3614459	99	2885	14,2867	cyclictest	3664084	-21	kworker/0:2+events	21:50:11	0
3614475	99	2839	5,2830	cyclictest	3660579	-21	kworker/3:2+events	21:49:48	3
3614475	99	2834	14,2818	cyclictest	3658903	-21	kworker/3:1+events	21:30:01	3
3614475	99	2822	13,2805	cyclictest	3654291	-21	kworker/3:2+events	21:13:03	3
3614475	99	2812	0,2808	cyclictest	3707765	-21	kworker/3:1+events	23:57:22	3
3614475	99	2808	13,2791	cyclictest	3714017	-21	kworker/3:2+events	00:22:47	3
3614475	99	2806	13,2790	cyclictest	3683342	-21	kworker/3:0+events	23:01:07	3
3614466	99	2804	12,2788	cyclictest	3670677	-21	kworker/1:2+events	22:25:21	1
3614475	99	2791	12,2775	cyclictest	3637639	-21	kworker/3:0+events	20:19:57	3
3614459	99	2786	11,2770	cyclictest	3664084	-21	kworker/0:2+events	21:45:18	0
3614466	99	2777	13,2762	cyclictest	3644619	-21	kworker/1:1+events	20:45:09	1
3614459	99	2764	13,2747	cyclictest	3658874	-21	kworker/0:1+events	21:28:08	0
3614466	99	2759	9,2746	cyclictest	3709434	-21	kworker/1:2+events	00:13:15	1
3614459	99	2759	13,2744	cyclictest	3639353	-21	kworker/0:1+events	20:26:18	0
3614466	99	2758	13,2741	cyclictest	3704185	-21	kworker/1:2+events	23:44:41	1
3614459	99	2748	13,2731	cyclictest	3694745	-21	kworker/0:0+events	23:20:00	0
3614466	99	2731	13,2715	cyclictest	3646288	-21	kworker/1:2+events	21:13:26	1
3614466	99	2725	13,2708	cyclictest	3632665	-21	kworker/1:0+events	20:10:26	1
3614459	99	2725	13,2708	cyclictest	3627617	-21	kworker/0:1+events	20:07:25	0
3614459	99	2722	13,2705	cyclictest	3637671	-21	kworker/0:0+events	20:20:19	0
3614466	99	2721	13,2705	cyclictest	3616204	-21	kworker/1:0+events	19:20:15	1
3614466	99	2721	12,2705	cyclictest	3636158	-21	kworker/1:1+events	20:15:21	1
3614466	99	2718	13,2701	cyclictest	3655804	-21	kworker/1:1+events	21:38:23	1
3614475	99	2713	12,2698	cyclictest	3675534	-21	kworker/3:3+events	22:22:44	3
3614459	99	2713	12,2697	cyclictest	3664084	-21	kworker/0:2+events	22:09:28	0
3614466	99	2712	13,2695	cyclictest	3662804	-21	kworker/1:2+events	21:46:01	1
3614459	99	2712	12,2696	cyclictest	3627617	-21	kworker/0:1+events	19:54:25	0
3614466	99	2710	13,2693	cyclictest	3648116	-21	kworker/1:0+events	20:54:41	1
3614466	99	2709	3,2702	cyclictest	3713989	-21	kworker/1:1+events	00:20:54	1
3614466	99	2709	13,2692	cyclictest	3709434	-21	kworker/1:2+events	00:15:35	1
3614459	99	2708	11,2694	cyclictest	3684937	-21	kworker/0:1+events	22:44:44	0
3614475	99	2706	12,2690	cyclictest	3658903	-21	kworker/3:1+events	21:43:45	3
3614466	99	2704	13,2687	cyclictest	3621048	-21	kworker/1:2+events	19:31:13	1
3614466	99	2702	12,2687	cyclictest	3670677	-21	kworker/1:2+events	22:20:52	1
3614459	99	2701	13,2684	cyclictest	3694745	-21	kworker/0:0+events	23:27:29	0
3614466	99	2700	7,2689	cyclictest	3662804	-21	kworker/1:2+events	21:44:53	1
3614475	99	2684	9,2670	cyclictest	3660579	-21	kworker/3:2+events	22:35:10	3
3614475	99	2684	13,2667	cyclictest	3675534	-21	kworker/3:3+events	22:17:02	3
3614459	99	2684	12,2670	cyclictest	3720793	-21	kworker/0:0+events	00:35:05	0
3614471	99	2680	12,2664	cyclictest	3627722	-21	kworker/2:2+events	19:49:26	2
3614471	99	2679	13,2662	cyclictest	3694675	-21	kworker/2:2+events	23:22:38	2
3614471	99	2676	13,2659	cyclictest	3632852	-21	kworker/2:1+events	20:13:51	2
3614475	99	2660	13,2643	cyclictest	3693121	-21	kworker/3:1+events	23:32:25	3
3614466	99	2656	12,2640	cyclictest	3669053	-21	kworker/1:0+events	21:56:14	1
3614475	99	2652	13,2635	cyclictest	3619766	-21	kworker/3:2+events	19:50:12	3
3614466	99	2644	12,2628	cyclictest	3655804	-21	kworker/1:1+events	21:26:59	1
3614459	99	2644	13,2627	cyclictest	3647819	-21	kworker/0:2+events	21:01:36	0
3614471	99	2643	11,2628	cyclictest	3714150	-21	kworker/2:2+events	00:27:46	2
3614466	99	2642	13,2627	cyclictest	3706144	-21	kworker/1:1+events	23:55:02	1
3614475	99	2641	13,2624	cyclictest	3701080	-21	kworker/3:0+events	23:46:14	3
3614475	99	2640	13,2623	cyclictest	3660579	-21	kworker/3:2+events	22:07:57	3
3614471	99	2640	13,2624	cyclictest	3712547	-21	kworker/2:0+events	00:11:43	2
3614471	99	2639	13,2624	cyclictest	3636335	-21	kworker/2:2+events	20:17:40	2
3614471	99	2639	12,2623	cyclictest	3629578	-21	kworker/2:1+events	19:56:21	2
3614475	99	2637	13,2620	cyclictest	3720856	-21	kworker/3:2+events	00:36:16	3
3614466	99	2636	12,2620	cyclictest	3707821	-21	kworker/1:0+events	00:09:08	1
3614475	99	2634	13,2617	cyclictest	3639408	-21	kworker/3:2+events	20:24:25	3
3614471	99	2632	13,2615	cyclictest	3670476	-21	kworker/2:0+events	22:05:36	2
3614466	99	2631	13,2614	cyclictest	3624750	-21	kworker/1:0+events	19:50:59	1
3614475	99	2630	13,2613	cyclictest	3627828	-21	kworker/3:1+events	20:05:56	3
3614471	99	2629	13,2612	cyclictest	3664408	-21	kworker/2:2+events	21:44:32	2
3614471	99	2626	13,2610	cyclictest	3643511	-21	kworker/2:0+events	21:10:47	2
3614459	99	2625	13,2608	cyclictest	3677983	-21	kworker/0:2+events	22:38:13	0
3614471	99	2622	13,2605	cyclictest	3719032	-21	kworker/2:1+events	00:32:01	2
3614471	99	2622	13,2605	cyclictest	3719032	-21	kworker/2:1+events	00:32:00	2
3614475	99	2617	10,2603	cyclictest	3631273	-21	kworker/3:0+events	20:02:05	3
3614466	99	2610	12,2594	cyclictest	3683501	-21	kworker/1:1+events	23:01:55	1
3614466	99	2608	12,2592	cyclictest	3707821	-21	kworker/1:0+events	00:04:55	1
3614459	99	2608	12,2592	cyclictest	3694745	-21	kworker/0:0+events	23:44:19	0
3614459	99	2607	13,2590	cyclictest	3654174	-21	kworker/0:0+events	21:23:59	0
3614459	99	2604	11,2590	cyclictest	3693152	-21	kworker/0:1+events	23:10:35	0
3614475	99	2601	12,2585	cyclictest	3627828	-21	kworker/3:1+events	20:12:19	3
3614459	99	2595	12,2579	cyclictest	3623117	-21	kworker/0:2+events	19:38:04	0
3614475	99	2585	12,2569	cyclictest	3712419	-21	kworker/3:1+events	00:09:50	3
3614466	99	2582	13,2565	cyclictest	3670677	-21	kworker/1:2+events	22:17:26	1
3614471	99	2580	12,2564	cyclictest	3707693	-21	kworker/2:0+events	23:51:58	2
3614475	99	2579	12,2563	cyclictest	3712419	-21	kworker/3:1+events	00:14:47	3
3614475	99	2579	12,2563	cyclictest	3683342	-21	kworker/3:0+events	22:59:13	3
3614475	99	2579	12,2563	cyclictest	3641270	-21	kworker/3:1+events	20:35:46	3
3614471	99	2579	12,2563	cyclictest	3641080	-21	kworker/2:2+events	20:31:13	2
3614475	99	2578	12,2563	cyclictest	3693121	-21	kworker/3:1+events	23:35:07	3
3614475	99	2578	12,2562	cyclictest	3641270	-21	kworker/3:1+events	20:48:37	3
3614475	99	2578	12,2562	cyclictest	3619766	-21	kworker/3:2+events	19:38:26	3
3614475	99	2578	12,2562	cyclictest	3617614	-21	kworker/3:1+events	19:28:12	3
3614471	99	2578	12,2562	cyclictest	3620050	-21	kworker/2:0+events	19:32:23	2
3614475	99	2577	12,2562	cyclictest	3627828	-21	kworker/3:1+events	19:56:45	3
3614475	99	2576	12,2561	cyclictest	3648004	-21	kworker/3:0+events	20:50:29	3
3614475	99	2575	12,2560	cyclictest	3717319	-21	kworker/3:1+events	00:34:19	3
3614475	99	2575	12,2560	cyclictest	3717319	-21	kworker/3:1+events	00:34:19	3
3614475	99	2574	12,2558	cyclictest	3660579	-21	kworker/3:2+events	21:59:16	3
3614475	99	2573	12,2557	cyclictest	3686274	-21	kworker/3:2+events	22:46:39	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2024-07-29 - 23:00