OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

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 50 highest latencies:

System rackfslot7s.osadl.org (updated Fri Oct 10, 2025 00:44:17)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2822358	99	3628	17,3608	cyclictest	2887568	-21	kworker/3:2+events	22:35:18	3
2822347	99	3447	18,3424	cyclictest	2880340	-21	kworker/0:1+events	22:10:17	0
2822352	99	3009	14,2991	cyclictest	2848204	-21	kworker/1:1+events	20:55:15	1
2822356	99	2828	13,2808	cyclictest	2841609	-21	kworker/2:2+events	20:25:14	2
2822356	99	2778	13,2761	cyclictest	2823465	-21	kworker/2:2+events	19:30:13	2
2822358	99	2735	13,2719	cyclictest	2840246	-21	kworker/3:0+events	20:05:25	3
2822358	99	2723	14,2706	cyclictest	2862558	-21	kworker/3:1+events	21:15:02	3
2822347	99	2720	13,2703	cyclictest	2812431	-21	kworker/0:0+events	19:20:13	0
2822358	99	2688	13,2671	cyclictest	2923696	-21	kworker/3:2+events	00:25:19	3
2822347	99	2657	9,2644	cyclictest	2893227	-21	kworker/0:0+events	23:00:18	0
2822358	99	2547	12,2531	cyclictest	2828840	-21	kworker/3:0+events	19:29:49	3
2822352	99	2537	12,2521	cyclictest	2881693	-21	kworker/1:1+events	22:15:16	1
2822352	99	2524	12,2509	cyclictest	2876895	-21	kworker/1:2+events	22:11:25	1
2822347	99	2521	12,2506	cyclictest	2920361	-21	kworker/0:0+events	00:18:05	0
2822352	99	2519	11,2504	cyclictest	2832286	-21	kworker/1:0+events	19:45:25	1
2822358	99	2502	0,2498	cyclictest	2860890	-21	kworker/3:0+events	21:08:32	3
2822347	99	2499	0,2496	cyclictest	2881964	-21	kworker/0:2+events	22:18:42	0
2822347	99	2497	12,2482	cyclictest	2812431	-21	kworker/0:0+events	19:27:28	0
2822347	99	2496	12,2480	cyclictest	2852880	-21	kworker/0:1+events	20:46:49	0
2822347	99	2496	12,2480	cyclictest	2852880	-21	kworker/0:1+events	20:46:48	0
2822358	99	2494	12,2478	cyclictest	2915214	-21	kworker/3:0+events	00:01:20	3
2822352	99	2494	10,2480	cyclictest	2920218	-21	kworker/1:1+events	00:16:12	1
2822358	99	2493	12,2479	cyclictest	2869099	-21	kworker/3:2+events	21:36:29	3
2822358	99	2492	12,2478	cyclictest	2925307	-21	kworker/3:0+events	00:35:09	3
2822347	99	2491	12,2476	cyclictest	2835511	-21	kworker/0:0+events	19:58:17	0
2822358	99	2489	10,2475	cyclictest	2867409	-21	kworker/3:0+events	21:29:25	3
2822347	99	2489	12,2474	cyclictest	2854756	-21	kworker/0:0+events	20:55:38	0
2822358	99	2488	12,2473	cyclictest	2836942	-21	kworker/3:1+events	20:14:10	3
2822358	99	2488	11,2473	cyclictest	2898019	-21	kworker/3:1+events	23:04:48	3
2822358	99	2486	12,2471	cyclictest	2831845	-21	kworker/3:2+events	19:38:13	3
2822358	99	2486	12,2470	cyclictest	2908903	-21	kworker/3:1+events	23:43:33	3
2822358	99	2486	12,2470	cyclictest	2840246	-21	kworker/3:0+events	20:26:00	3
2822358	99	2485	12,2469	cyclictest	2848026	-21	kworker/3:2+events	20:42:57	3
2822358	99	2483	12,2468	cyclictest	2905911	-21	kworker/3:2+events	23:30:38	3
2822358	99	2481	12,2465	cyclictest	2893160	-21	kworker/3:2+events	22:58:25	3
2822358	99	2480	12,2465	cyclictest	2893160	-21	kworker/3:2+events	23:10:59	3
2822347	99	2480	12,2465	cyclictest	2911022	-21	kworker/0:1+events	23:56:45	0
2822356	99	2472	12,2457	cyclictest	2897752	-21	kworker/2:0+events	23:06:44	2
2822358	99	2467	10,2454	cyclictest	2851348	-21	kworker/3:1+events	20:45:39	3
2822358	99	2467	10,2454	cyclictest	2851348	-21	kworker/3:1+events	20:45:39	3
2822352	99	2461	12,2444	cyclictest	2876895	-21	kworker/1:2+events	21:58:08	1
2822352	99	2460	12,2444	cyclictest	2907335	-21	kworker/1:0+events	23:34:28	1
2822358	99	2459	12,2444	cyclictest	2849660	-21	kworker/3:0+events	20:34:41	3
2822352	99	2456	12,2440	cyclictest	2883426	-21	kworker/1:0+events	22:43:40	1
2822352	99	2451	12,2435	cyclictest	2846481	-21	kworker/1:0+events	20:27:30	1
2822347	99	2450	12,2435	cyclictest	2891591	-21	kworker/0:1+events	22:44:23	0
2822352	99	2448	11,2435	cyclictest	2867653	-21	kworker/1:2+events	21:30:10	1
2822352	99	2446	12,2431	cyclictest	2844731	-21	kworker/1:2+events	20:35:26	1
2822352	99	2445	12,2429	cyclictest	2876895	-21	kworker/1:2+events	22:06:54	1
2822352	99	2443	12,2427	cyclictest	2896248	-21	kworker/1:0+events	22:58:48	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2024-07-29 - 23:00