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 Feb 18, 2026 00:43:46)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1174921	99	566	9,43	cyclictest	0	-21	swapper/5	20:07:39	11
1174949	99	563	8,43	cyclictest	0	-21	swapper/12	00:31:38	4
1174921	99	529	14,513	cyclictest	0	-21	swapper/5	23:21:38	11
1174925	99	528	15,512	cyclictest	0	-21	swapper/6	00:23:38	12
1174921	99	521	7,0	cyclictest	0	-21	swapper/5	20:13:39	11
1174962	99	514	2,0	cyclictest	0	-21	swapper/15	19:35:39	7
1174962	99	514	2,0	cyclictest	0	-21	swapper/15	19:35:39	7
1174929	99	513	13,499	cyclictest	0	-21	swapper/7	19:28:39	13
1174929	99	513	13,499	cyclictest	0	-21	swapper/7	19:28:39	13
1174921	99	512	510,2	cyclictest	1356433	-21	kworker/5:0+i915-unordered	23:03:38	11
1174917	99	497	495,2	cyclictest	1424888	-21	kworker/4:1+i915-unordered	00:31:38	10
1174949	99	473	472,1	cyclictest	1437022	-21	kworker/12:2+i915-unordered	00:38:38	4
1174906	99	467	465,2	cyclictest	1199718	-21	kworker/1:2+i915-unordered	19:53:39	1
1174954	99	466	465,1	cyclictest	1376661	-21	kworker/13:0+i915-unordered	23:21:38	5
1174925	99	465	464,1	cyclictest	1296187	-21	kworker/6:1+i915-unordered	22:00:38	12
1174929	99	464	463,1	cyclictest	1195833	-21	kworker/7:0+i915-unordered	19:35:39	13
1174929	99	464	463,1	cyclictest	1195833	-21	kworker/7:0+i915-unordered	19:35:39	13
1174917	99	462	460,2	cyclictest	1235901	-21	kworker/4:1+i915-unordered	20:30:39	10
1174901	99	462	12,59	cyclictest	0	-21	swapper/0	19:47:38	0
1174954	99	460	459,1	cyclictest	1219783	-21	kworker/13:2+i915-unordered	20:07:39	5
1174954	99	460	455,3	cyclictest	1219783	-21	kworker/13:2+i915-unordered	20:13:39	5
1174925	99	457	6,58	cyclictest	0	-21	swapper/6	21:25:38	12
1174915	99	457	456,1	cyclictest	697	50	irq/159-i915	23:55:38	9
1174906	99	457	428,29	cyclictest	0	-21	swapper/1	23:08:38	1
1174925	99	455	425,30	cyclictest	0	-21	swapper/6	00:37:38	12
1174944	99	452	0,452	cyclictest	0	-21	swapper/11	00:23:38	3
1174906	99	450	448,2	cyclictest	0	-21	swapper/1	22:28:38	1
1174906	99	450	448,2	cyclictest	0	-21	swapper/1	22:28:38	1
1174915	99	449	0,29	cyclictest	0	-21	swapper/3	22:00:01	9
1174958	99	448	24,30	cyclictest	0	-21	swapper/14	22:03:38	6
1174915	99	448	26,29	cyclictest	0	-21	swapper/3	19:59:34	9
1174958	99	447	447,0	cyclictest	1397624	-21	kworker/14:2+i915-unordered	00:23:38	6
1174939	99	443	441,2	cyclictest	1251917	-21	kworker/10:0+i915-unordered	21:40:38	2
1174936	99	442	21,420	cyclictest	0	-21	swapper/9	20:58:38	15
1174958	99	441	21,30	cyclictest	0	-21	swapper/14	21:20:01	6
1174917	99	441	19,30	cyclictest	0	-21	swapper/4	21:22:38	10
1174958	99	440	18,29	cyclictest	0	-21	swapper/14	20:58:00	6
1174958	99	440	16,422	cyclictest	0	-21	swapper/14	20:03:23	6
1174958	99	440	15,29	cyclictest	0	-21	swapper/14	20:47:22	6
1174944	99	440	1,438	cyclictest	0	-21	swapper/11	20:10:39	3
1174939	99	440	439,1	cyclictest	1294937	-21	kworker/10:1+i915-unordered	21:37:38	2
1174936	99	440	410,30	cyclictest	0	-21	swapper/9	19:53:39	15
1174910	99	439	408,31	cyclictest	0	-21	swapper/2	21:40:38	8
1174944	99	438	17,420	cyclictest	0	-21	swapper/11	00:06:38	3
1174925	99	437	14,30	cyclictest	0	-21	swapper/6	20:21:38	12
1174910	99	437	437,0	cyclictest	0	-21	swapper/2	21:37:38	8
1174917	99	436	16,30	cyclictest	0	-21	swapper/4	00:38:38	10
1174958	99	435	435,0	cyclictest	0	-21	swapper/14	20:10:39	6
1174949	99	435	14,420	cyclictest	0	-21	swapper/12	22:05:02	4
1174944	99	435	434,1	cyclictest	1280288	-21	kworker/11:1+i915-unordered	21:20:38	3
1174944	99	435	433,2	cyclictest	1271955	-21	kworker/11:2+i915-unordered	21:12:38	3
1174929	99	435	435,0	cyclictest	0	-21	swapper/7	19:33:39	13
1174929	99	435	435,0	cyclictest	0	-21	swapper/7	19:33:39	13
1174936	99	434	432,2	cyclictest	1348651	-21	kworker/9:1+i915-unordered	23:08:38	15
1174958	99	433	12,420	cyclictest	0	-21	swapper/14	20:36:38	6
1174958	99	432	7,28	cyclictest	0	-21	swapper/14	19:10:01	6
1174944	99	431	429,1	cyclictest	1416934	-21	kworker/11:1+i915-unordered	00:11:38	3
1174954	99	430	7,30	cyclictest	0	-21	swapper/13	20:31:38	5
1174936	99	430	9,29	cyclictest	0	-21	swapper/9	21:27:38	15
1174936	99	430	10,29	cyclictest	0	-21	swapper/9	21:33:38	15
1174944	99	429	427,2	cyclictest	1412795	-21	kworker/11:0+i915-unordered	00:01:38	3
1174921	99	429	4,30	cyclictest	0	-21	swapper/5	21:26:23	11
1174962	99	428	30,397	cyclictest	0	-21	swapper/15	22:17:01	7
1174936	99	428	9,29	cyclictest	0	-21	swapper/9	21:11:38	15
1174936	99	428	7,29	cyclictest	0	-21	swapper/9	23:01:38	15
1174944	99	427	426,1	cyclictest	1360702	-21	kworker/11:0+i915-unordered	23:18:38	3
1174944	99	427	426,1	cyclictest	1215683	-21	kworker/11:2+i915-unordered	19:56:39	3
1174962	99	425	24,400	cyclictest	0	-21	swapper/15	22:28:21	7
1174962	99	425	24,400	cyclictest	0	-21	swapper/15	22:28:21	7
1174915	99	425	26,398	cyclictest	0	-21	swapper/3	00:02:00	9
1174901	99	425	0,29	cyclictest	0	-21	swapper/0	20:27:01	0
1174962	99	424	26,397	cyclictest	0	-21	swapper/15	19:13:00	7
1174962	99	424	25,398	cyclictest	0	-21	swapper/15	23:19:22	7
1174962	99	424	25,398	cyclictest	0	-21	swapper/15	20:27:22	7
1174962	99	424	25,398	cyclictest	0	-21	swapper/15	19:34:23	7
1174962	99	424	25,398	cyclictest	0	-21	swapper/15	19:34:23	7
1174962	99	424	24,399	cyclictest	0	-21	swapper/15	22:06:23	7
1174949	99	424	25,398	cyclictest	0	-21	swapper/12	20:40:02	4
1174962	99	423	422,1	cyclictest	0	-21	swapper/15	22:21:01	7
1174962	99	423	422,1	cyclictest	0	-21	swapper/15	22:21:01	7
1174962	99	423	25,397	cyclictest	0	-21	swapper/15	20:38:00	7
1174962	99	423	24,398	cyclictest	0	-21	swapper/15	00:11:22	7
1174936	99	423	422,1	cyclictest	1324233	-21	kworker/9:0+i915-unordered	22:28:38	15
1174936	99	423	422,1	cyclictest	1324233	-21	kworker/9:0+i915-unordered	22:28:38	15
1174917	99	423	0,30	cyclictest	0	-21	swapper/4	19:57:38	10
1174915	99	423	24,398	cyclictest	0	-21	swapper/3	21:21:02	9
1174962	99	422	25,397	cyclictest	0	-21	swapper/15	00:15:22	7
1174962	99	422	23,398	cyclictest	0	-21	swapper/15	20:48:02	7
1174958	99	422	24,396	cyclictest	0	-21	swapper/14	20:50:00	6
1174958	99	422	21,398	cyclictest	0	-21	swapper/14	22:12:01	6
1174933	99	422	24,397	cyclictest	0	-21	swapper/8	20:16:02	14
1174921	99	422	422,0	cyclictest	0	-21	swapper/5	23:26:38	11
1174915	99	422	26,396	cyclictest	0	-21	swapper/3	20:41:01	9
1174915	99	422	24,397	cyclictest	0	-21	swapper/3	23:17:00	9
1174962	99	421	23,397	cyclictest	0	-21	swapper/15	20:21:21	7
1174962	99	421	23,397	cyclictest	0	-21	swapper/15	20:09:22	7
1174962	99	421	22,398	cyclictest	0	-21	swapper/15	22:43:01	7
1174962	99	421	21,399	cyclictest	0	-21	swapper/15	22:11:01	7
1174939	99	421	420,1	cyclictest	1801	-21	snmpd	23:06:50	2
1174939	99	421	419,2	cyclictest	1801	-21	snmpd	22:43:13	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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