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 Tue Jul 28, 2026 00:43:48)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3019724	99	568	9,27	cyclictest	0	-21	swapper/3	19:21:54	9
3019720	99	554	10,543	cyclictest	0	-21	swapper/2	19:52:54	8
3019752	99	542	540,2	cyclictest	3024763	-21	kworker/10:0+i915-unordered	19:52:54	2
3019746	99	537	535,2	cyclictest	3097109	-21	kworker/9:0+i915-unordered	21:12:54	15
3019770	99	528	527,1	cyclictest	3056674	-21	kworker/14:0+i915-unordered	19:57:54	6
3019727	99	526	3,519	cyclictest	0	-21	swapper/4	19:58:54	10
3019724	99	526	524,2	cyclictest	3173336	-21	kworker/3:0+i915-unordered	23:48:54	9
3019724	99	526	524,2	cyclictest	3173336	-21	kworker/3:0+i915-unordered	23:48:54	9
3019759	99	524	522,2	cyclictest	3028503	-21	kworker/11:0+i915-unordered	19:21:54	3
3019770	99	520	4,515	cyclictest	0	-21	swapper/14	19:42:54	6
3019764	99	519	517,2	cyclictest	3092853	-21	kworker/12:2+i915-unordered	20:33:54	4
3019746	99	518	18,499	cyclictest	0	-21	swapper/9	00:03:54	15
3019770	99	517	17,499	cyclictest	0	-21	swapper/14	23:36:54	6
3019764	99	505	501,4	cyclictest	3157451	-21	kworker/12:2+i915-unordered	22:01:54	4
3019766	99	504	502,1	cyclictest	3262026	-21	kworker/13:0+i915-unordered	00:19:54	5
3019720	99	502	502,0	cyclictest	0	-21	swapper/2	00:17:54	8
3019752	99	489	488,0	cyclictest	3266022	-21	kworker/10:2+i915-unordered	00:17:54	2
3019732	99	488	487,1	cyclictest	0	-21	swapper/5	00:19:54	11
3019724	99	487	487,0	cyclictest	0	-21	swapper/3	19:16:54	9
3019764	99	479	478,1	cyclictest	3169364	-21	kworker/12:0+i915-unordered	22:34:54	4
3019764	99	478	477,1	cyclictest	3060697	-21	kworker/12:1+i915-unordered	19:58:54	4
3019766	99	468	467,1	cyclictest	3153365	-21	kworker/13:0+i915-unordered	21:49:54	5
3019743	99	467	3,463	cyclictest	0	-21	swapper/8	22:34:54	14
3019743	99	466	3,462	cyclictest	0	-21	swapper/8	19:58:54	14
3019746	99	465	463,1	cyclictest	3214490	-21	kworker/9:1+i915-unordered	23:12:54	15
3019732	99	462	461,1	cyclictest	0	-21	swapper/5	20:52:54	11
3019720	99	461	6,454	cyclictest	0	-21	swapper/2	19:16:54	8
3019764	99	453	447,5	cyclictest	1818	-21	snmpd	20:11:05	4
3019759	99	451	450,1	cyclictest	0	-21	swapper/11	23:48:54	3
3019759	99	451	450,1	cyclictest	0	-21	swapper/11	23:48:54	3
3019713	99	451	450,1	cyclictest	697	50	irq/159-i915	22:34:54	0
3019759	99	450	448,2	cyclictest	3068785	-21	kworker/11:1+pm	20:11:05	3
3019713	99	450	448,2	cyclictest	697	50	irq/159-i915	19:58:54	0
3019752	99	447	447,0	cyclictest	697	50	irq/159-i915	19:16:54	2
3019743	99	447	9,437	cyclictest	0	-21	swapper/8	21:51:54	14
3019727	99	447	25,421	cyclictest	0	-21	swapper/4	20:21:16	10
3019717	99	447	445,2	cyclictest	3241808	-21	kworker/1:1+i915-unordered	00:03:54	1
3019774	99	446	0,445	cyclictest	0	-21	swapper/15	23:17:54	7
3019727	99	446	25,420	cyclictest	0	-21	swapper/4	22:34:15	10
3019727	99	445	443,1	cyclictest	3149200	-21	kworker/4:1+pm	21:45:05	10
3019724	99	445	442,1	cyclictest	0	-21	swapper/3	20:46:54	9
3019759	99	444	443,0	cyclictest	2994735	-21	kworker/11:2+i915-unordered	19:16:54	3
3019732	99	444	19,30	cyclictest	0	-21	swapper/5	22:09:54	11
3019724	99	443	440,3	cyclictest	0	-21	swapper/3	21:45:05	9
3019727	99	442	23,418	cyclictest	0	-21	swapper/4	19:52:37	10
3019727	99	442	22,419	cyclictest	0	-21	swapper/4	20:52:17	10
3019727	99	442	22,419	cyclictest	0	-21	swapper/4	20:48:18	10
3019727	99	442	21,420	cyclictest	0	-21	swapper/4	22:08:15	10
3019727	99	442	20,421	cyclictest	0	-21	swapper/4	19:34:38	10
3019752	99	441	23,417	cyclictest	0	-21	swapper/10	20:17:17	2
3019752	99	440	19,420	cyclictest	0	-21	swapper/10	21:19:17	2
3019743	99	440	0,439	cyclictest	0	-21	swapper/8	21:18:54	14
3019732	99	440	20,29	cyclictest	0	-21	swapper/5	23:59:54	11
3019732	99	440	20,29	cyclictest	0	-21	swapper/5	23:59:54	11
3019770	99	439	18,30	cyclictest	0	-21	swapper/14	19:46:54	6
3019736	99	439	20,417	cyclictest	0	-21	swapper/6	20:41:38	12
3019727	99	439	18,418	cyclictest	0	-21	swapper/4	21:26:15	10
3019746	99	438	437,1	cyclictest	0	-21	swapper/9	22:07:18	15
3019736	99	438	18,419	cyclictest	0	-21	swapper/6	20:08:37	12
3019736	99	438	18,418	cyclictest	0	-21	swapper/6	20:26:39	12
3019732	99	438	23,29	cyclictest	0	-21	swapper/5	20:37:54	11
3019717	99	438	434,3	cyclictest	0	-21	swapper/1	21:12:54	1
3019736	99	437	18,417	cyclictest	0	-21	swapper/6	20:21:39	12
3019736	99	437	17,418	cyclictest	0	-21	swapper/6	19:37:38	12
3019732	99	437	19,29	cyclictest	0	-21	swapper/5	22:14:54	11
3019727	99	437	15,418	cyclictest	0	-21	swapper/4	21:06:16	10
3019727	99	437	15,418	cyclictest	0	-21	swapper/4	21:06:16	10
3019717	99	437	25,28	cyclictest	0	-21	swapper/1	21:21:54	1
3019752	99	436	435,1	cyclictest	0	-21	swapper/10	23:38:17	2
3019752	99	436	435,1	cyclictest	0	-21	swapper/10	21:30:55	2
3019752	99	436	18,417	cyclictest	0	-21	swapper/10	20:27:16	2
3019736	99	436	15,419	cyclictest	0	-21	swapper/6	19:52:16	12
3019727	99	436	16,418	cyclictest	0	-21	swapper/4	20:19:38	10
3019752	99	435	434,1	cyclictest	0	-21	swapper/10	21:25:55	2
3019736	99	435	14,419	cyclictest	0	-21	swapper/6	19:47:35	12
3019724	99	435	435,0	cyclictest	0	-21	swapper/3	19:59:05	9
3019752	99	434	434,0	cyclictest	0	-21	swapper/10	21:31:55	2
3019746	99	434	434,0	cyclictest	0	-21	swapper/9	21:46:38	15
3019713	99	434	434,0	cyclictest	0	-21	swapper/0	22:56:37	0
3019746	99	433	9,30	cyclictest	0	-21	swapper/9	23:31:54	15
3019732	99	433	433,0	cyclictest	0	-21	swapper/5	19:43:17	11
3019727	99	433	13,420	cyclictest	0	-21	swapper/4	20:37:16	10
3019724	99	433	13,416	cyclictest	0	-21	swapper/3	21:36:16	9
3019713	99	432	431,1	cyclictest	697	50	irq/159-i915	21:51:54	0
3019766	99	431	427,3	cyclictest	0	-21	swapper/13	21:33:54	5
3019746	99	431	9,421	cyclictest	0	-21	swapper/9	21:20:15	15
3019724	99	431	9,421	cyclictest	0	-21	swapper/3	21:50:38	9
3019724	99	431	10,420	cyclictest	0	-21	swapper/3	20:14:15	9
3019720	99	431	9,421	cyclictest	0	-21	swapper/2	21:02:39	8
3019720	99	431	9,421	cyclictest	0	-21	swapper/2	21:02:39	8
3019727	99	430	11,417	cyclictest	0	-21	swapper/4	21:48:38	10
3019724	99	430	8,421	cyclictest	0	-21	swapper/3	22:54:37	9
3019724	99	430	427,3	cyclictest	0	-21	swapper/3	00:18:48	9
3019724	99	430	11,418	cyclictest	0	-21	swapper/3	20:28:15	9
3019720	99	430	9,420	cyclictest	0	-21	swapper/2	20:15:17	8
3019724	99	429	8,420	cyclictest	0	-21	swapper/3	20:24:16	9
3019724	99	429	7,421	cyclictest	0	-21	swapper/3	21:28:17	9
3019759	99	428	0,2	cyclictest	0	-21	swapper/11	22:29:40	3
3019736	99	428	4,29	cyclictest	0	-21	swapper/6	19:31:15	12
3019724	99	428	6,419	cyclictest	0	-21	swapper/3	20:56:15	9
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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