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 system in rack #0, slot #5

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.
Unexpectedly long latencies may be caused by SMIs
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 rack0slot5.osadl.org (updated Sat Nov 29, 2025 00:43:47)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1991180	99	504	502,2	cyclictest	2012418	-21	kworker/6:1+i915-unordered	19:28:34	12
1991174	99	502	501,1	cyclictest	2008537	-21	kworker/4:0+i915-unordered	20:22:34	10
1991174	99	502	501,1	cyclictest	2008537	-21	kworker/4:0+i915-unordered	20:22:34	10
1991207	99	501	0,498	cyclictest	0	-21	swapper/12	20:22:34	4
1991207	99	501	0,498	cyclictest	0	-21	swapper/12	20:22:34	4
1991211	99	497	495,1	cyclictest	2246263	-21	kworker/13:1+i915-unordered	00:17:34	5
1991174	99	488	487,1	cyclictest	0	-21	swapper/4	22:51:34	10
1991157	99	477	22,455	cyclictest	0	-21	swapper/0	20:22:34	0
1991157	99	477	22,455	cyclictest	0	-21	swapper/0	20:22:34	0
1991207	99	475	474,1	cyclictest	2165126	-21	kworker/12:1+i915-unordered	22:51:34	4
1991215	99	472	26,29	cyclictest	0	-21	swapper/14	21:43:18	6
1991207	99	469	468,1	cyclictest	0	-21	swapper/12	22:48:34	4
1991165	99	469	21,29	cyclictest	0	-21	swapper/2	19:51:18	8
1991157	99	468	22,30	cyclictest	0	-21	swapper/0	23:58:17	0
1991207	99	464	463,1	cyclictest	0	-21	swapper/12	21:50:34	4
1991180	99	464	15,29	cyclictest	0	-21	swapper/6	00:26:18	12
1991180	99	463	16,29	cyclictest	0	-21	swapper/6	22:13:57	12
1991180	99	463	16,28	cyclictest	0	-21	swapper/6	00:08:19	12
1991180	99	462	13,447	cyclictest	0	-21	swapper/6	22:07:56	12
1991165	99	462	18,30	cyclictest	0	-21	swapper/2	21:35:34	8
1991180	99	461	12,29	cyclictest	0	-21	swapper/6	21:43:55	12
1991165	99	460	14,30	cyclictest	0	-21	swapper/2	20:25:34	8
1991165	99	460	14,30	cyclictest	0	-21	swapper/2	20:25:34	8
1991207	99	458	10,30	cyclictest	0	-21	swapper/12	23:47:34	4
1991176	99	457	454,2	cyclictest	2234052	-21	kworker/5:1+events	00:17:57	11
1991203	99	454	454,0	cyclictest	2258529	-21	kworker/11:0+i915-unordered	00:25:34	3
1991207	99	453	5,29	cyclictest	0	-21	swapper/12	23:09:29	4
1991176	99	453	450,2	cyclictest	2184796	-21	kworker/5:2+events	23:13:57	11
1991176	99	453	450,2	cyclictest	2184796	-21	kworker/5:2+events	23:13:57	11
1991203	99	451	421,30	cyclictest	0	-21	swapper/11	23:12:34	3
1991203	99	451	421,30	cyclictest	0	-21	swapper/11	23:12:34	3
1991198	99	450	448,2	cyclictest	2188828	-21	kworker/10:2+i915-unordered	23:22:34	2
1991198	99	450	448,2	cyclictest	2188828	-21	kworker/10:2+i915-unordered	23:22:34	2
1991184	99	449	447,2	cyclictest	0	-21	swapper/7	22:16:31	13
1991165	99	449	22,425	cyclictest	0	-21	swapper/2	19:49:16	8
1991176	99	448	444,1	cyclictest	2111024	-21	kworker/5:0+i915-unordered	21:30:34	11
1991165	99	447	21,30	cyclictest	0	-21	swapper/2	20:15:18	8
1991157	99	447	1,30	cyclictest	0	-21	swapper/0	23:03:18	0
1991203	99	445	445,0	cyclictest	0	-21	swapper/11	00:20:34	3
1991180	99	445	25,419	cyclictest	0	-21	swapper/6	22:24:57	12
1991176	99	445	444,1	cyclictest	0	-21	swapper/5	22:10:34	11
1991157	99	445	0,28	cyclictest	0	-21	swapper/0	20:08:20	0
1991218	99	444	443,1	cyclictest	2250349	-21	kworker/15:0+i915-unordered	00:19:58	7
1991198	99	444	442,2	cyclictest	2160159	-21	kworker/10:0+i915-unordered	22:40:34	2
1991180	99	444	26,417	cyclictest	0	-21	swapper/6	23:43:18	12
1991180	99	443	26,417	cyclictest	0	-21	swapper/6	22:47:17	12
1991180	99	443	25,415	cyclictest	0	-21	swapper/6	22:14:55	12
1991215	99	442	23,418	cyclictest	0	-21	swapper/14	00:28:34	6
1991180	99	442	441,1	cyclictest	0	-21	swapper/6	22:21:34	12
1991180	99	442	25,416	cyclictest	0	-21	swapper/6	21:04:17	12
1991180	99	442	24,418	cyclictest	0	-21	swapper/6	20:53:19	12
1991180	99	441	23,418	cyclictest	0	-21	swapper/6	23:35:18	12
1991180	99	441	0,30	cyclictest	0	-21	swapper/6	21:37:34	12
1991174	99	441	439,2	cyclictest	0	-21	swapper/4	19:43:34	10
1991174	99	441	18,422	cyclictest	0	-21	swapper/4	23:45:55	10
1991184	99	440	23,417	cyclictest	0	-21	swapper/7	21:34:57	13
1991180	99	440	21,418	cyclictest	0	-21	swapper/6	20:38:19	12
1991180	99	440	21,418	cyclictest	0	-21	swapper/6	19:44:17	12
1991180	99	440	19,420	cyclictest	0	-21	swapper/6	22:01:18	12
1991184	99	439	22,416	cyclictest	0	-21	swapper/7	20:58:34	13
1991180	99	439	21,417	cyclictest	0	-21	swapper/6	23:47:17	12
1991215	99	438	24,413	cyclictest	0	-21	swapper/14	00:34:30	6
1991174	99	438	19,418	cyclictest	0	-21	swapper/4	23:40:56	10
1991211	99	437	15,421	cyclictest	0	-21	swapper/13	23:34:58	5
1991184	99	437	18,418	cyclictest	0	-21	swapper/7	21:07:18	13
1991180	99	437	12,29	cyclictest	0	-21	swapper/6	22:42:18	12
1991176	99	437	20,416	cyclictest	0	-21	swapper/5	22:00:34	11
1991207	99	436	18,417	cyclictest	0	-21	swapper/12	23:26:34	4
1991157	99	435	19,416	cyclictest	0	-21	swapper/0	21:56:19	0
1991157	99	434	14,419	cyclictest	0	-21	swapper/0	21:49:55	0
1991203	99	433	403,30	cyclictest	0	-21	swapper/11	22:25:34	3
1991169	99	433	433,0	cyclictest	0	-21	swapper/3	00:25:34	9
1991184	99	432	15,416	cyclictest	0	-21	swapper/7	22:56:17	13
1991169	99	432	430,2	cyclictest	2177432	-21	kworker/3:0+i915-unordered	23:12:34	9
1991169	99	432	430,2	cyclictest	2177432	-21	kworker/3:0+i915-unordered	23:12:34	9
1991218	99	431	9,422	cyclictest	0	-21	swapper/15	23:49:18	7
1991218	99	431	8,422	cyclictest	0	-21	swapper/15	23:00:57	7
1991218	99	431	10,420	cyclictest	0	-21	swapper/15	22:36:57	7
1991207	99	431	7,30	cyclictest	0	-21	swapper/12	23:02:34	4
1991184	99	431	13,417	cyclictest	0	-21	swapper/7	22:13:18	13
1991218	99	430	9,420	cyclictest	0	-21	swapper/15	21:34:19	7
1991184	99	430	13,417	cyclictest	0	-21	swapper/7	23:48:19	13
1991180	99	430	13,0	cyclictest	0	-21	swapper/6	23:19:19	12
1991180	99	430	13,0	cyclictest	0	-21	swapper/6	23:19:19	12
1991174	99	430	10,420	cyclictest	0	-21	swapper/4	20:39:57	10
1991218	99	429	9,419	cyclictest	0	-21	swapper/15	23:39:16	7
1991218	99	429	9,419	cyclictest	0	-21	swapper/15	22:58:18	7
1991218	99	429	7,421	cyclictest	0	-21	swapper/15	20:53:56	7
1991218	99	429	427,1	cyclictest	2114898	-21	kworker/15:2+i915-unordered	21:34:57	7
1991218	99	429	10,417	cyclictest	0	-21	swapper/15	22:44:18	7
1991211	99	429	9,419	cyclictest	0	-21	swapper/13	21:30:34	5
1991198	99	429	427,2	cyclictest	2115085	-21	kworker/10:0+i915-unordered	21:35:34	2
1991191	99	429	427,2	cyclictest	2090416	-21	kworker/9:1+i915-unordered	21:12:34	15
1991174	99	429	10,418	cyclictest	0	-21	swapper/4	21:57:34	10
1991157	99	429	5,29	cyclictest	0	-21	swapper/0	21:09:19	0
1991218	99	428	8,419	cyclictest	0	-21	swapper/15	22:07:17	7
1991211	99	428	7,420	cyclictest	0	-21	swapper/13	22:43:57	5
1991188	99	428	13,414	cyclictest	0	-21	swapper/8	00:05:18	14
1991184	99	428	427,1	cyclictest	0	-21	swapper/7	23:44:35	13
1991180	99	428	9,417	cyclictest	0	-21	swapper/6	22:52:20	12
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2019-05-28 - 00:17