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 Sep 01, 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
2916821	99	730	198,5	cyclictest	0	-21	swapper/0	23:27:48	0
2916858	99	575	22,552	cyclictest	0	-21	swapper/10	21:31:48	2
2916858	99	575	22,552	cyclictest	0	-21	swapper/10	21:31:48	2
2916835	99	572	5,565	cyclictest	0	-21	swapper/4	00:21:48	10
2916833	99	529	9,29	cyclictest	0	-21	swapper/3	20:31:48	9
2916821	99	528	21,45	cyclictest	0	-21	swapper/0	21:31:48	0
2916821	99	528	21,45	cyclictest	0	-21	swapper/0	21:31:48	0
2916821	99	524	19,44	cyclictest	0	-21	swapper/0	22:41:48	0
2916821	99	515	10,43	cyclictest	0	-21	swapper/0	00:21:48	0
2916868	99	509	477,32	cyclictest	0	-21	swapper/12	19:42:48	4
2916866	99	507	476,31	cyclictest	0	-21	swapper/11	22:38:48	3
2916866	99	506	0,505	cyclictest	124	-21	ksoftirqd/11	22:41:48	3
2916868	99	500	499,1	cyclictest	3168345	-21	kworker/12:1+i915-unordered	00:21:48	4
2916824	99	499	496,2	cyclictest	3062774	-21	kworker/1:1+i915-unordered	22:23:48	1
2916824	99	498	496,2	cyclictest	3118913	-21	kworker/1:2+i915-unordered	23:40:48	1
2916821	99	492	15,476	cyclictest	0	-21	swapper/0	19:36:48	0
2916821	99	490	28,461	cyclictest	0	-21	swapper/0	23:38:48	0
2916824	99	489	488,1	cyclictest	3147998	-21	kworker/1:0+i915-unordered	23:51:48	1
2916868	99	488	0,487	cyclictest	0	-21	swapper/12	21:02:48	4
2916821	99	487	25,461	cyclictest	0	-21	swapper/0	23:06:48	0
2916833	99	485	484,1	cyclictest	3078775	-21	kworker/3:5+i915-unordered	22:38:48	9
2916833	99	483	483,0	cyclictest	3086582	-21	kworker/3:0+i915-unordered	22:41:48	9
2916829	99	483	481,2	cyclictest	3034196	-21	kworker/2:1+i915-unordered	21:31:48	8
2916829	99	483	481,2	cyclictest	3034196	-21	kworker/2:1+i915-unordered	21:31:48	8
2916821	99	478	16,461	cyclictest	0	-21	swapper/0	22:46:48	0
2916821	99	478	15,462	cyclictest	0	-21	swapper/0	20:07:48	0
2916821	99	477	15,461	cyclictest	0	-21	swapper/0	21:10:48	0
2916821	99	477	0,475	cyclictest	0	-21	swapper/0	19:40:48	0
2916848	99	476	475,1	cyclictest	0	-21	swapper/7	22:52:48	13
2916881	99	474	25,28	cyclictest	0	-21	swapper/15	21:35:31	7
2916853	99	474	25,30	cyclictest	0	-21	swapper/9	23:50:10	15
2916881	99	473	26,29	cyclictest	0	-21	swapper/15	21:46:31	7
2916881	99	472	22,30	cyclictest	0	-21	swapper/15	19:16:32	7
2916881	99	472	21,30	cyclictest	0	-21	swapper/15	23:22:29	7
2916881	99	471	19,29	cyclictest	0	-21	swapper/15	23:28:08	7
2916853	99	471	21,29	cyclictest	0	-21	swapper/9	23:56:10	15
2916881	99	470	21,30	cyclictest	0	-21	swapper/15	00:26:10	7
2916881	99	470	19,29	cyclictest	0	-21	swapper/15	19:44:34	7
2916853	99	469	21,30	cyclictest	0	-21	swapper/9	20:22:30	15
2916821	99	469	7,461	cyclictest	0	-21	swapper/0	00:05:48	0
2916821	99	469	7,461	cyclictest	0	-21	swapper/0	00:05:48	0
2916853	99	468	21,30	cyclictest	0	-21	swapper/9	00:17:31	15
2916853	99	468	21,30	cyclictest	0	-21	swapper/9	00:17:31	15
2916853	99	468	18,30	cyclictest	0	-21	swapper/9	22:52:32	15
2916821	99	468	7,460	cyclictest	0	-21	swapper/0	22:38:48	0
2916881	99	467	19,30	cyclictest	0	-21	swapper/15	21:34:31	7
2916881	99	467	19,30	cyclictest	0	-21	swapper/15	21:34:31	7
2916881	99	466	22,30	cyclictest	0	-21	swapper/15	21:44:31	7
2916848	99	466	465,1	cyclictest	3126994	-21	kworker/7:1+i915-unordered	23:27:48	13
2916881	99	465	16,29	cyclictest	0	-21	swapper/15	22:31:31	7
2916881	99	465	15,29	cyclictest	0	-21	swapper/15	20:09:32	7
2916853	99	465	17,30	cyclictest	0	-21	swapper/9	20:25:32	15
2916848	99	463	18,30	cyclictest	0	-21	swapper/7	23:36:47	13
2916833	99	463	21,28	cyclictest	0	-21	swapper/3	21:23:48	9
2916821	99	463	0,461	cyclictest	0	-21	swapper/0	23:51:48	0
2916868	99	462	18,29	cyclictest	0	-21	swapper/12	19:51:48	4
2916868	99	461	18,29	cyclictest	0	-21	swapper/12	00:01:47	4
2916853	99	455	6,29	cyclictest	0	-21	swapper/9	22:30:34	15
2916850	99	455	454,1	cyclictest	2916379	-21	kworker/8:3+events	19:15:30	14
2916858	99	454	9,29	cyclictest	0	-21	swapper/10	23:34:43	2
2916821	99	452	0,449	cyclictest	0	-21	swapper/0	23:45:48	0
2916868	99	451	448,2	cyclictest	2973126	-21	kworker/u64:0+events_unbound	21:18:10	4
2916868	99	450	11,30	cyclictest	0	-21	swapper/12	22:27:48	4
2916868	99	449	446,2	cyclictest	2937551	-21	kworker/u64:1+events_unbound	19:31:10	4
2916858	99	449	7,30	cyclictest	115	-21	ksoftirqd/10	19:07:48	2
2916835	99	449	26,422	cyclictest	0	-21	swapper/4	22:03:11	10
2916858	99	448	1,29	cyclictest	0	-21	swapper/10	20:02:31	2
2916835	99	448	26,421	cyclictest	0	-21	swapper/4	19:39:10	10
2916873	99	447	446,1	cyclictest	3106703	-21	kworker/13:2+i915-unordered	23:06:48	5
2916868	99	447	444,2	cyclictest	3081434	-21	kworker/u64:1+events_unbound	22:43:30	4
2916850	99	447	446,1	cyclictest	1818	-21	snmpd	21:42:42	14
2916835	99	447	26,420	cyclictest	0	-21	swapper/4	22:48:09	10
2916835	99	447	26,420	cyclictest	0	-21	swapper/4	22:38:11	10
2916835	99	447	26,420	cyclictest	0	-21	swapper/4	20:11:11	10
2916835	99	447	26,420	cyclictest	0	-21	swapper/4	00:09:10	10
2916835	99	447	26,420	cyclictest	0	-21	swapper/4	00:09:10	10
2916824	99	447	3,30	cyclictest	0	-21	swapper/1	21:17:48	1
2916868	99	446	445,1	cyclictest	0	-21	swapper/12	19:36:48	4
2916858	99	446	24,421	cyclictest	0	-21	swapper/10	23:55:32	2
2916835	99	446	24,421	cyclictest	0	-21	swapper/4	23:37:33	10
2916835	99	446	24,421	cyclictest	0	-21	swapper/4	00:18:10	10
2916835	99	446	24,421	cyclictest	0	-21	swapper/4	00:18:10	10
2916858	99	445	25,419	cyclictest	0	-21	swapper/10	00:08:33	2
2916858	99	445	25,419	cyclictest	0	-21	swapper/10	00:08:33	2
2916858	99	445	24,420	cyclictest	0	-21	swapper/10	23:44:31	2
2916858	99	445	23,421	cyclictest	0	-21	swapper/10	21:45:33	2
2916850	99	445	441,3	cyclictest	3087557	-21	kworker/8:0+pm	22:42:43	14
2916835	99	445	25,419	cyclictest	0	-21	swapper/4	22:12:32	10
2916835	99	445	25,418	cyclictest	0	-21	swapper/4	22:57:32	10
2916835	99	445	24,420	cyclictest	0	-21	swapper/4	19:14:31	10
2916835	99	445	23,421	cyclictest	0	-21	swapper/4	22:06:09	10
2916858	99	444	24,419	cyclictest	0	-21	swapper/10	19:49:33	2
2916835	99	444	24,419	cyclictest	0	-21	swapper/4	19:18:31	10
2916835	99	444	23,420	cyclictest	0	-21	swapper/4	22:32:29	10
2916868	99	443	0,29	cyclictest	0	-21	swapper/12	21:12:48	4
2916866	99	443	441,2	cyclictest	3115049	-21	kworker/11:2+i915-unordered	23:45:48	3
2916858	99	443	21,420	cyclictest	0	-21	swapper/10	22:29:09	2
2916853	99	443	26,416	cyclictest	0	-21	swapper/9	21:54:43	15
2916848	99	443	441,2	cyclictest	2962667	-21	kworker/7:2+i915-unordered	20:07:48	13
2916843	99	443	440,2	cyclictest	3049353	-21	kworker/u64:13+events_unbound	21:46:48	12
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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