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 Sun Mar 29, 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
139253	99	710	311,398	cyclictest	0	-21	swapper/6	20:48:23	12
139284	99	520	20,499	cyclictest	0	-21	swapper/13	20:46:39	5
139265	99	509	508,1	cyclictest	0	-21	swapper/9	22:11:39	15
139284	99	506	7,497	cyclictest	0	-21	swapper/13	19:42:39	5
139257	99	498	0,496	cyclictest	0	-21	swapper/7	21:43:39	13
139232	99	489	3,482	cyclictest	0	-21	swapper/0	22:45:39	0
139290	99	478	20,456	cyclictest	0	-21	swapper/15	20:47:39	7
139275	99	475	473,2	cyclictest	0	-21	swapper/11	23:31:39	3
139246	99	474	20,58	cyclictest	0	-21	swapper/4	23:31:01	10
139275	99	472	4,467	cyclictest	0	-21	swapper/11	19:11:39	3
139251	99	472	5,466	cyclictest	0	-21	swapper/5	20:06:39	11
139261	99	465	463,1	cyclictest	308954	-21	kworker/8:0+i915-unordered	22:45:39	14
139287	99	463	462,1	cyclictest	697	50	irq/159-i915	21:28:39	6
139242	99	460	458,2	cyclictest	312735	-21	kworker/3:1+i915-unordered	23:31:39	9
139232	99	457	65,391	cyclictest	0	-21	swapper/0	20:33:39	0
139290	99	456	28,29	cyclictest	0	-21	swapper/15	22:04:02	7
139242	99	456	456,0	cyclictest	65896	-21	kworker/3:5+i915-unordered	19:11:39	9
139290	99	455	28,29	cyclictest	0	-21	swapper/15	19:34:23	7
139234	99	453	452,1	cyclictest	284649	-21	kworker/1:0+i915-unordered	22:11:39	1
139290	99	452	24,30	cyclictest	0	-21	swapper/15	00:26:23	7
139290	99	452	23,29	cyclictest	0	-21	swapper/15	20:54:23	7
139290	99	451	24,30	cyclictest	0	-21	swapper/15	19:20:23	7
139290	99	451	24,29	cyclictest	0	-21	swapper/15	19:56:23	7
139275	99	449	449,0	cyclictest	0	-21	swapper/11	20:02:39	3
139251	99	449	448,1	cyclictest	168067	-21	kworker/5:0+i915-unordered	19:42:39	11
139246	99	449	20,30	cyclictest	0	-21	swapper/4	20:29:01	10
139251	99	447	446,1	cyclictest	216172	-21	kworker/5:0+i915-unordered	20:46:39	11
139246	99	445	18,29	cyclictest	0	-21	swapper/4	21:06:01	10
139246	99	444	18,29	cyclictest	0	-21	swapper/4	21:10:22	10
139246	99	444	18,29	cyclictest	0	-21	swapper/4	21:10:22	10
139257	99	443	49,0	cyclictest	0	-21	swapper/7	19:30:39	13
139246	99	443	20,29	cyclictest	0	-21	swapper/4	22:58:24	10
139246	99	443	19,30	cyclictest	0	-21	swapper/4	22:20:23	10
139246	99	443	17,29	cyclictest	0	-21	swapper/4	20:35:24	10
139246	99	443	16,30	cyclictest	0	-21	swapper/4	20:34:23	10
139242	99	443	20,30	cyclictest	0	-21	swapper/3	23:01:39	9
139246	99	442	18,30	cyclictest	0	-21	swapper/4	23:12:24	10
139246	99	442	18,30	cyclictest	0	-21	swapper/4	21:52:23	10
139246	99	442	18,29	cyclictest	0	-21	swapper/4	20:46:24	10
139246	99	442	18,28	cyclictest	0	-21	swapper/4	19:46:24	10
139246	99	441	16,30	cyclictest	0	-21	swapper/4	21:31:25	10
139253	99	439	19,29	cyclictest	0	-21	swapper/6	00:28:39	12
139253	99	438	15,422	cyclictest	0	-21	swapper/6	20:20:39	12
139287	99	437	437,0	cyclictest	697	50	irq/159-i915	20:06:39	6
139284	99	436	430,5	cyclictest	1818	-21	snmpd	23:25:50	5
139242	99	436	16,28	cyclictest	0	-21	swapper/3	19:58:39	9
139232	99	436	10,29	cyclictest	404448	-21	proc_pri	00:35:02	0
139242	99	435	433,1	cyclictest	184056	-21	kworker/3:0+i915-unordered	20:02:39	9
139234	99	435	14,30	cyclictest	0	-21	swapper/1	22:09:35	1
139287	99	434	433,1	cyclictest	697	50	irq/159-i915	20:56:39	6
139290	99	433	430,3	cyclictest	1818	-21	snmpd	21:51:35	7
139287	99	433	432,1	cyclictest	697	50	irq/159-i915	22:45:39	6
139279	99	432	428,4	cyclictest	1818	-21	snmpd	21:58:35	4
139246	99	432	9,29	cyclictest	0	-21	swapper/4	23:28:02	10
139287	99	431	429,1	cyclictest	147808	-21	kworker/14:0+i915-unordered	19:15:39	6
139253	99	431	430,1	cyclictest	244345	-21	kworker/6:1+i915-unordered	21:28:39	12
139267	99	430	426,3	cyclictest	284832	-21	kworker/10:0+pm	22:11:15	2
139290	99	429	0,29	cyclictest	0	-21	swapper/15	20:09:02	7
139251	99	429	6,29	cyclictest	0	-21	swapper/5	21:12:39	11
139251	99	429	6,29	cyclictest	0	-21	swapper/5	21:12:39	11
139284	99	428	2,30	cyclictest	0	-21	swapper/13	20:30:01	5
139290	99	427	1,30	cyclictest	0	-21	swapper/15	23:22:23	7
139290	99	427	0,29	cyclictest	0	-21	swapper/15	00:04:00	7
139290	99	427	0,29	cyclictest	0	-21	swapper/15	00:04:00	7
139287	99	427	426,1	cyclictest	697	50	irq/159-i915	20:18:39	6
139257	99	427	425,2	cyclictest	200089	-21	kworker/7:1+i915-unordered	20:47:39	13
139251	99	427	427,0	cyclictest	240627	-21	kworker/5:1+i915-unordered	22:17:39	11
139253	99	426	6,28	cyclictest	0	-21	swapper/6	22:01:39	12
139232	99	426	25,400	cyclictest	0	-21	swapper/0	22:44:02	0
139257	99	424	423,1	cyclictest	0	-21	swapper/7	22:37:39	13
139232	99	424	25,398	cyclictest	0	-21	swapper/0	23:07:02	0
139232	99	424	25,398	cyclictest	0	-21	swapper/0	20:08:01	0
139253	99	423	3,29	cyclictest	0	-21	swapper/6	21:35:39	12
139251	99	423	3,29	cyclictest	0	-21	swapper/5	20:53:39	11
139251	99	423	31,391	cyclictest	134810	-21	kworker/5:4+i915-unordered	19:10:39	11
139290	99	422	25,395	cyclictest	0	-21	swapper/15	20:55:26	7
139290	99	422	24,396	cyclictest	0	-21	swapper/15	23:17:23	7
139284	99	422	22,399	cyclictest	0	-21	swapper/13	21:10:00	5
139284	99	422	22,399	cyclictest	0	-21	swapper/13	21:10:00	5
139253	99	421	1,29	cyclictest	0	-21	swapper/6	00:18:39	12
139284	99	420	20,396	cyclictest	0	-21	swapper/13	23:50:01	5
139287	99	419	22,396	cyclictest	0	-21	swapper/14	19:28:39	6
139234	99	419	25,393	cyclictest	0	-21	swapper/1	21:53:39	1
139267	99	418	21,396	cyclictest	0	-21	swapper/10	19:15:00	2
139253	99	418	0,26	cyclictest	0	-21	swapper/6	21:46:39	12
139251	99	418	28,389	cyclictest	0	-21	swapper/5	22:02:39	11
139232	99	418	418,0	cyclictest	0	-21	swapper/0	21:22:00	0
139232	99	418	418,0	cyclictest	0	-21	swapper/0	21:22:00	0
139284	99	417	20,395	cyclictest	0	-21	swapper/13	20:55:03	5
139279	99	417	24,392	cyclictest	0	-21	swapper/12	23:25:39	4
139265	99	417	21,395	cyclictest	0	-21	swapper/9	23:24:34	15
139251	99	417	29,388	cyclictest	0	-21	swapper/5	23:47:39	11
139232	99	417	17,399	cyclictest	0	-21	swapper/0	22:35:01	0
139267	99	416	20,395	cyclictest	0	-21	swapper/10	00:25:00	2
139267	99	416	17,398	cyclictest	0	-21	swapper/10	19:25:02	2
139253	99	416	22,393	cyclictest	0	-21	swapper/6	21:21:39	12
139253	99	416	22,393	cyclictest	0	-21	swapper/6	21:21:39	12
139251	99	416	416,0	cyclictest	0	-21	swapper/5	21:17:39	11
139251	99	416	416,0	cyclictest	0	-21	swapper/5	21:17:39	11
139251	99	416	26,390	cyclictest	0	-21	swapper/5	21:51:39	11
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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