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 Fri Feb 27, 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
4089416	99	2927	12,2911	cyclictest	4146032	-21	kworker/2:0+events	22:05:00	2
4089411	99	2810	13,2792	cyclictest	4149405	-21	kworker/1:1+events	22:20:12	1
4089411	99	2784	13,2767	cyclictest	4145795	-21	kworker/1:0+events	22:10:17	1
4089408	99	2761	9,2747	cyclictest	4147807	-21	kworker/0:2+events	22:15:12	0
4089408	99	2761	12,2745	cyclictest	4095862	-21	kworker/0:2+events	19:30:00	0
4089411	99	2759	13,2740	cyclictest	4138014	-21	kworker/1:1+events	21:55:12	1
4089411	99	2759	13,2740	cyclictest	4138014	-21	kworker/1:1+events	21:55:12	1
4089411	99	2747	13,2732	cyclictest	4104467	-21	kworker/1:2+events	20:00:01	1
4089411	99	2697	11,2682	cyclictest	4162425	-21	kworker/1:2+events	23:00:13	1
4089408	99	2656	13,2641	cyclictest	4178855	-21	kworker/0:2+events	23:55:13	0
4089416	99	2582	12,2567	cyclictest	4155510	-21	kworker/2:1+events	22:47:05	2
4089418	99	2573	12,2558	cyclictest	4115781	-21	kworker/3:1+events	20:50:21	3
4089411	99	2538	12,2522	cyclictest	4114392	-21	kworker/1:2+events	20:59:02	1
4089408	99	2533	12,2517	cyclictest	4165815	-21	kworker/0:2+events	23:14:02	0
4089408	99	2532	12,2517	cyclictest	4126736	-21	kworker/0:0+events	21:04:48	0
4089408	99	2512	10,2499	cyclictest	4165815	-21	kworker/0:2+events	23:15:32	0
4089411	99	2508	12,2492	cyclictest	4138014	-21	kworker/1:1+events	22:06:07	1
4089408	99	2508	12,2493	cyclictest	4120614	-21	kworker/0:1+events	20:44:40	0
4089408	99	2507	10,2493	cyclictest	4139456	-21	kworker/0:1+events	21:47:36	0
4089411	99	2506	11,2491	cyclictest	4189949	-21	kworker/1:2+events	00:27:14	1
4089408	99	2504	12,2488	cyclictest	4128337	-21	kworker/0:2+events	21:07:02	0
4089408	99	2503	10,2489	cyclictest	4139456	-21	kworker/0:1+events	22:03:29	0
4089416	99	2499	11,2486	cyclictest	4097576	-21	kworker/2:1+events	19:55:04	2
4089416	99	2497	12,2482	cyclictest	4111103	-21	kworker/2:1+events	20:13:52	2
4089411	99	2497	8,2485	cyclictest	4127005	-21	kworker/1:1+events	21:12:18	1
4089411	99	2496	12,2480	cyclictest	4111192	-21	kworker/1:1+events	20:28:18	1
4089416	99	2495	12,2479	cyclictest	4128306	-21	kworker/2:2+events	21:15:48	2
4089416	99	2494	12,2479	cyclictest	4172397	-21	kworker/2:2+events	23:27:47	2
4089416	99	2492	12,2476	cyclictest	4144302	-21	kworker/2:1+events	22:22:31	2
4089416	99	2490	12,2474	cyclictest	4160738	-21	kworker/2:0+events	23:03:42	2
4089408	99	2490	12,2475	cyclictest	4155541	-21	kworker/0:2+events	22:34:23	0
4089416	99	2486	12,2470	cyclictest	4129932	-21	kworker/2:0+events	21:12:42	2
4089408	99	2485	12,2471	cyclictest	4183167	-21	kworker/0:1+events	00:00:12	0
4089408	99	2481	11,2466	cyclictest	4177089	-21	kworker/0:0+events	23:43:43	0
4089408	99	2476	11,2461	cyclictest	4191698	-21	kworker/0:0+events	00:30:17	0
4089416	99	2469	12,2454	cyclictest	4183767	-21	kworker/2:1+events	00:24:17	2
4089416	99	2455	12,2440	cyclictest	4111103	-21	kworker/2:1+events	20:20:45	2
4089411	99	2453	11,2438	cyclictest	4111192	-21	kworker/1:1+events	20:24:55	1
4089408	99	2449	12,2434	cyclictest	4111162	-21	kworker/0:2+events	20:15:00	0
4089411	99	2446	11,2432	cyclictest	4130174	-21	kworker/1:0+events	21:40:14	1
4089408	99	2443	12,2427	cyclictest	4141095	-21	kworker/0:0+events	21:50:13	0
4089408	99	2437	12,2421	cyclictest	4107895	-21	kworker/0:1+events	20:31:21	0
4089416	99	2435	12,2420	cyclictest	4149350	-21	kworker/2:2+events	22:18:19	2
4089408	99	2435	11,2421	cyclictest	4164157	-21	kworker/0:1+events	22:59:50	0
4089408	99	2434	10,2420	cyclictest	4094255	-21	kworker/0:0+events	19:45:34	0
4089408	99	2426	12,2410	cyclictest	4130054	-21	kworker/0:1+events	21:17:41	0
4089411	99	2423	12,2408	cyclictest	4175339	-21	kworker/1:2+events	23:40:15	1
4089408	99	2423	9,2411	cyclictest	4128337	-21	kworker/0:2+events	21:23:05	0
4089408	99	2423	12,2407	cyclictest	4172188	-21	kworker/0:1+events	23:24:19	0
4089411	99	2422	6,2413	cyclictest	4147748	-21	kworker/1:2+events	22:30:13	1
4089408	99	2422	10,2408	cyclictest	4164157	-21	kworker/0:1+events	23:07:52	0
4089408	99	2421	11,2406	cyclictest	4115692	-21	kworker/0:2+events	20:39:19	0
4089408	99	2421	10,2407	cyclictest	4139456	-21	kworker/0:1+events	22:07:15	0
4089411	99	2420	11,2406	cyclictest	4165755	-21	kworker/1:1+events	23:07:08	1
4089408	99	2420	12,2405	cyclictest	4190075	-21	kworker/0:2+events	00:21:34	0
4089411	99	2419	12,2403	cyclictest	4173671	-21	kworker/1:1+events	23:32:00	1
4089408	99	2419	12,2403	cyclictest	4094255	-21	kworker/0:0+events	19:43:16	0
4089408	99	2419	12,2403	cyclictest	4094255	-21	kworker/0:0+events	19:43:16	0
4089408	99	2419	11,2404	cyclictest	4123934	-21	kworker/0:1+events	20:57:07	0
4089411	99	2418	12,2402	cyclictest	4088882	-21	kworker/1:0+events	19:18:09	1
4089408	99	2418	12,2403	cyclictest	4142699	-21	kworker/0:2+events	21:57:06	0
4089408	99	2418	12,2403	cyclictest	4142699	-21	kworker/0:2+events	21:57:06	0
4089408	99	2418	11,2405	cyclictest	4175430	-21	kworker/0:1+events	23:45:14	0
4089408	99	2418	10,2404	cyclictest	4111162	-21	kworker/0:2+events	20:17:43	0
4089408	99	2417	10,2404	cyclictest	4159067	-21	kworker/0:0+events	22:47:52	0
4089411	99	2416	12,2401	cyclictest	4157021	-21	kworker/1:0+events	22:50:11	1
4089418	99	2414	9,2401	cyclictest	4122569	-21	kworker/3:0+events	22:02:43	3
4089411	99	2409	12,2393	cyclictest	4169296	-21	kworker/1:0+events	23:20:29	1
4089411	99	2409	12,2393	cyclictest	4088882	-21	kworker/1:0+events	19:21:56	1
4089411	99	2409	10,2396	cyclictest	4094313	-21	kworker/1:1+events	19:33:26	1
4089411	99	2408	12,2393	cyclictest	4100917	-21	kworker/1:0+events	19:41:25	1
4089411	99	2408	12,2393	cyclictest	4100917	-21	kworker/1:0+events	19:41:25	1
4089411	99	2408	12,2392	cyclictest	4160552	-21	kworker/1:1+events	22:56:20	1
4089411	99	2407	8,2395	cyclictest	4173671	-21	kworker/1:1+events	23:28:56	1
4089411	99	2405	12,2389	cyclictest	4125380	-21	kworker/1:0+events	21:01:19	1
4089411	99	2405	10,2392	cyclictest	4114392	-21	kworker/1:2+events	20:42:47	1
4089411	99	2404	12,2388	cyclictest	4185505	-21	kworker/1:1+events	00:17:02	1
4089411	99	2404	10,2391	cyclictest	4176967	-21	kworker/1:0+events	23:51:48	1
4089411	99	2404	10,2391	cyclictest	4176967	-21	kworker/1:0+events	23:51:47	1
4089408	99	2400	12,2385	cyclictest	4105940	-21	kworker/0:0+events	20:00:24	0
4089408	99	2399	12,2383	cyclictest	4159067	-21	kworker/0:0+events	23:03:18	0
4089408	99	2389	10,2377	cyclictest	4131661	-21	kworker/0:0+events	21:25:00	0
4089416	99	2386	12,2371	cyclictest	4160738	-21	kworker/2:0+events	23:11:41	2
4089408	99	2367	12,2352	cyclictest	4105940	-21	kworker/0:0+events	20:06:36	0
4089416	99	2359	12,2344	cyclictest	4097576	-21	kworker/2:1+events	19:42:07	2
4089416	99	2359	12,2344	cyclictest	4097576	-21	kworker/2:1+events	19:42:07	2
4089416	99	2354	12,2338	cyclictest	4159035	-21	kworker/2:2+events	22:43:11	2
4089416	99	2339	11,2324	cyclictest	4139366	-21	kworker/2:0+events	21:57:29	2
4089416	99	2339	11,2324	cyclictest	4139366	-21	kworker/2:0+events	21:57:29	2
4089418	99	2338	12,2322	cyclictest	4081047	-21	kworker/3:1+events	19:50:12	3
4089408	99	2338	11,2324	cyclictest	4152294	-21	kworker/0:1+events	22:29:28	0
4089416	99	2332	11,2317	cyclictest	4120526	-21	kworker/2:2+events	20:50:42	2
4089416	99	2332	10,2319	cyclictest	4090736	-21	kworker/2:0+events	19:20:24	2
4089408	99	2331	10,2318	cyclictest	4112802	-21	kworker/0:0+events	20:23:02	0
4089416	99	2327	12,2312	cyclictest	4160738	-21	kworker/2:0+events	22:58:42	2
4089416	99	2327	11,2313	cyclictest	4123794	-21	kworker/2:1+events	21:05:53	2
4089416	99	2324	11,2309	cyclictest	4178622	-21	kworker/2:0+events	23:44:06	2
4089416	99	2320	11,2305	cyclictest	4131540	-21	kworker/2:1+events	21:46:50	2
4089416	99	2319	12,2304	cyclictest	4097576	-21	kworker/2:1+events	19:38:01	2
4089408	99	2318	11,2304	cyclictest	4099362	-21	kworker/0:2+events	19:53:13	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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