OSADL QA Farm on Real-time of Mainline Linux

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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 Wed Nov 19, 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
1991732	99	515	484,31	cyclictest	0	-21	swapper/9	22:32:52	15
1991732	99	512	12,499	cyclictest	0	-21	swapper/9	19:41:52	15
1991757	99	506	7,498	cyclictest	0	-21	swapper/15	19:33:52	7
1991746	99	505	504,1	cyclictest	2094997	-21	kworker/12:1+i915-unordered	21:12:52	4
1991755	99	502	28,29	cyclictest	2111435	-21	kworker/14:0+i915-unordered	21:45:52	6
1991746	99	501	12,488	cyclictest	0	-21	swapper/12	21:41:52	4
1991716	99	500	499,1	cyclictest	2054011	-21	kworker/5:2+i915-unordered	20:23:52	11
1991716	99	500	499,1	cyclictest	2054011	-21	kworker/5:2+i915-unordered	20:23:52	11
1991719	99	496	466,30	cyclictest	0	-21	swapper/6	23:17:52	12
1991750	99	491	461,30	cyclictest	0	-21	swapper/13	20:23:52	5
1991750	99	491	461,30	cyclictest	0	-21	swapper/13	20:23:52	5
1991757	99	488	26,461	cyclictest	0	-21	swapper/15	19:16:53	7
1991746	99	485	483,1	cyclictest	2131808	-21	kworker/12:2+i915-unordered	21:50:52	4
1991713	99	478	478,0	cyclictest	2107446	-21	kworker/4:0+i915-unordered	21:41:52	10
1991699	99	476	28,28	cyclictest	0	-21	swapper/1	22:03:15	1
1991708	99	473	471,2	cyclictest	2004793	-21	kworker/3:1+i915-unordered	19:22:52	9
1991732	99	472	471,1	cyclictest	2238590	-21	kworker/9:1+i915-unordered	00:02:52	15
1991737	99	469	467,1	cyclictest	2201785	-21	kworker/10:1+i915-unordered	23:23:52	2
1991719	99	469	468,1	cyclictest	772	50	irq/159-i915	22:17:52	12
1991716	99	466	3,462	cyclictest	0	-21	swapper/5	23:23:52	11
1991755	99	464	462,2	cyclictest	2197726	-21	kworker/14:1+i915-unordered	23:17:52	6
1991716	99	462	461,1	cyclictest	2222367	-21	kworker/5:1+i915-unordered	23:45:52	11
1991713	99	462	461,1	cyclictest	0	-21	swapper/4	21:50:52	10
1991696	99	460	1,458	cyclictest	0	-21	swapper/0	21:54:15	0
1991750	99	459	457,1	cyclictest	772	50	irq/159-i915	23:23:52	5
1991719	99	459	458,1	cyclictest	772	50	irq/159-i915	21:43:52	12
1991719	99	457	456,1	cyclictest	772	50	irq/159-i915	22:21:52	12
1991719	99	456	455,1	cyclictest	772	50	irq/159-i915	20:31:52	12
1991755	99	455	8,28	cyclictest	0	-21	swapper/14	22:01:52	6
1991750	99	455	453,2	cyclictest	772	50	irq/159-i915	23:45:52	5
1991719	99	455	454,1	cyclictest	772	50	irq/159-i915	21:45:52	12
1991696	99	455	453,1	cyclictest	2073226	-21	kworker/u64:6+events_unbound	22:05:15	0
1991713	99	453	452,1	cyclictest	0	-21	swapper/4	21:12:52	10
1991716	99	452	452,0	cyclictest	0	-21	swapper/5	00:02:52	11
1991704	99	452	3,29	cyclictest	0	-21	swapper/2	21:57:15	8
1991708	99	451	446,4	cyclictest	3682525	-21	snmpd	19:42:48	9
1991704	99	450	2,29	cyclictest	0	-21	swapper/2	00:02:36	8
1991704	99	450	1,29	cyclictest	0	-21	swapper/2	23:26:14	8
1991699	99	450	0,30	cyclictest	0	-21	swapper/1	23:47:35	1
1991696	99	450	448,1	cyclictest	0	-21	swapper/0	21:06:35	0
1991719	99	449	448,1	cyclictest	772	50	irq/159-i915	21:21:52	12
1991704	99	449	0,30	cyclictest	0	-21	swapper/2	22:19:37	8
1991757	99	448	10,29	cyclictest	0	-21	swapper/15	21:14:48	7
1991704	99	448	1,29	cyclictest	0	-21	swapper/2	00:16:14	8
1991757	99	447	26,420	cyclictest	0	-21	swapper/15	00:05:34	7
1991757	99	447	0,30	cyclictest	0	-21	swapper/15	23:25:36	7
1991732	99	447	0,30	cyclictest	0	-21	swapper/9	23:08:52	15
1991732	99	447	0,30	cyclictest	0	-21	swapper/9	23:08:52	15
1991699	99	447	26,420	cyclictest	0	-21	swapper/1	00:06:15	1
1991696	99	447	445,2	cyclictest	2021558	-21	kworker/u64:4+events_unbound	20:26:52	0
1991757	99	446	27,418	cyclictest	0	-21	swapper/15	21:05:35	7
1991757	99	446	26,419	cyclictest	0	-21	swapper/15	20:09:37	7
1991757	99	446	26,419	cyclictest	0	-21	swapper/15	00:18:37	7
1991724	99	445	25,419	cyclictest	0	-21	swapper/7	23:35:37	13
1991699	99	445	25,420	cyclictest	0	-21	swapper/1	00:03:14	1
1991757	99	443	24,418	cyclictest	0	-21	swapper/15	23:38:14	7
1991757	99	443	24,418	cyclictest	0	-21	swapper/15	22:29:15	7
1991757	99	443	23,419	cyclictest	0	-21	swapper/15	23:59:14	7
1991757	99	443	23,419	cyclictest	0	-21	swapper/15	20:37:15	7
1991750	99	443	443,0	cyclictest	772	50	irq/159-i915	00:02:52	5
1991737	99	443	22,420	cyclictest	0	-21	swapper/10	21:25:52	2
1991727	99	443	23,420	cyclictest	0	-21	swapper/8	21:51:37	14
1991719	99	443	442,1	cyclictest	772	50	irq/159-i915	21:12:52	12
1991704	99	443	5,29	cyclictest	0	-21	swapper/2	22:03:52	8
1991737	99	442	23,418	cyclictest	0	-21	swapper/10	00:18:52	2
1991737	99	442	22,419	cyclictest	0	-21	swapper/10	00:27:52	2
1991732	99	442	23,416	cyclictest	0	-21	swapper/9	23:10:52	15
1991724	99	442	21,420	cyclictest	0	-21	swapper/7	00:14:36	13
1991742	99	441	25,415	cyclictest	0	-21	swapper/11	00:28:52	3
1991708	99	441	439,2	cyclictest	0	-21	swapper/3	23:25:52	9
1991704	99	440	20,418	cyclictest	0	-21	swapper/2	20:50:15	8
1991719	99	439	438,1	cyclictest	772	50	irq/159-i915	22:00:52	12
1991708	99	439	19,419	cyclictest	0	-21	swapper/3	21:02:52	9
1991737	99	438	19,418	cyclictest	0	-21	swapper/10	00:20:52	2
1991724	99	438	17,419	cyclictest	0	-21	swapper/7	19:26:14	13
1991716	99	438	436,2	cyclictest	0	-21	swapper/5	23:17:52	11
1991704	99	438	17,419	cyclictest	0	-21	swapper/2	23:00:14	8
1991704	99	438	17,419	cyclictest	0	-21	swapper/2	23:00:14	8
1991757	99	437	16,420	cyclictest	0	-21	swapper/15	22:55:14	7
1991757	99	437	16,420	cyclictest	0	-21	swapper/15	22:55:14	7
1991719	99	437	17,419	cyclictest	0	-21	swapper/6	20:48:52	12
1991755	99	436	434,1	cyclictest	2148439	-21	kworker/14:2+i915-unordered	22:17:52	6
1991737	99	436	15,420	cyclictest	0	-21	swapper/10	23:32:52	2
1991724	99	436	15,420	cyclictest	0	-21	swapper/7	20:19:38	13
1991724	99	436	15,420	cyclictest	0	-21	swapper/7	20:19:38	13
1991724	99	436	15,419	cyclictest	0	-21	swapper/7	19:31:14	13
1991719	99	436	436,0	cyclictest	772	50	irq/159-i915	19:45:52	12
1991737	99	435	16,417	cyclictest	0	-21	swapper/10	00:01:52	2
1991724	99	435	14,419	cyclictest	0	-21	swapper/7	19:36:14	13
1991719	99	435	434,1	cyclictest	772	50	irq/159-i915	22:52:52	12
1991719	99	435	434,1	cyclictest	772	50	irq/159-i915	22:32:52	12
1991716	99	435	435,0	cyclictest	0	-21	swapper/5	19:18:47	11
1991716	99	435	435,0	cyclictest	0	-21	swapper/5	00:16:52	11
1991755	99	434	434,0	cyclictest	0	-21	swapper/14	21:41:52	6
1991742	99	434	433,1	cyclictest	2155754	-21	sensors	22:20:16	3
1991713	99	434	18,415	cyclictest	0	-21	swapper/4	20:13:52	10
1991713	99	434	18,415	cyclictest	0	-21	swapper/4	20:13:52	10
1991699	99	434	431,2	cyclictest	2073226	-21	kworker/u64:6+events_unbound	22:45:52	1
1991699	99	434	21,412	cyclictest	0	-21	swapper/1	21:33:52	1
1991755	99	433	15,417	cyclictest	0	-21	swapper/14	21:20:52	6
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2019-05-28 - 00:17