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 Feb 22, 2026 00:43:47)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1156817	99	568	10,27	cyclictest	0	-21	swapper/14	23:15:31	6
1156806	99	542	94,442	cyclictest	1382819	-21	kworker/11:0+i915-unordered	23:50:31	3
1156821	99	535	35,499	cyclictest	0	-21	swapper/15	20:37:31	7
1156782	99	526	11,514	cyclictest	0	-21	swapper/5	23:56:31	11
1156767	99	521	7,512	cyclictest	0	-21	swapper/1	22:08:31	1
1156806	99	516	93,422	cyclictest	1338755	-21	kworker/11:2+i915-unordered	22:55:31	3
1156769	99	515	18,496	cyclictest	43	-21	ksoftirqd/2	00:03:31	8
1156817	99	513	0,511	cyclictest	0	-21	swapper/14	23:42:31	6
1156782	99	512	12,499	cyclictest	0	-21	swapper/5	19:48:31	11
1156806	99	510	86,423	cyclictest	1264703	-21	kworker/11:0+i915-unordered	21:23:31	3
1156815	99	506	504,2	cyclictest	1362608	-21	kworker/13:1+i915-unordered	23:56:31	5
1156806	99	506	80,421	cyclictest	1205554	-21	kworker/11:0+i915-unordered	20:53:31	3
1156782	99	500	16,483	cyclictest	0	-21	swapper/5	21:02:31	11
1156767	99	499	0,498	cyclictest	0	-21	swapper/1	21:11:31	1
1156769	99	498	31,466	cyclictest	0	-21	swapper/2	21:56:31	8
1156815	99	493	491,2	cyclictest	1173522	-21	kworker/13:1+i915-unordered	19:48:31	5
1156769	99	489	489,0	cyclictest	0	-21	swapper/2	21:18:31	8
1156796	99	481	480,1	cyclictest	1261893	-21	kworker/9:0+i915-unordered	21:17:31	15
1156788	99	481	479,1	cyclictest	1213899	-21	kworker/7:0+i915-unordered	20:37:31	13
1156815	99	480	480,0	cyclictest	1244591	-21	kworker/13:2+i915-unordered	21:02:31	5
1156806	99	479	23,455	cyclictest	0	-21	swapper/11	22:15:31	3
1156806	99	479	23,455	cyclictest	0	-21	swapper/11	22:15:31	3
1156806	99	477	53,419	cyclictest	1241983	-21	kworker/11:1+i915-unordered	20:55:31	3
1156806	99	475	35,439	cyclictest	0	-21	swapper/11	21:02:31	3
1156777	99	473	471,1	cyclictest	1169470	-21	kworker/4:1+i915-unordered	19:27:31	10
1156777	99	473	471,1	cyclictest	1169470	-21	kworker/4:1+i915-unordered	19:27:31	10
1156815	99	472	415,29	cyclictest	0	-21	swapper/13	00:18:31	5
1156806	99	471	29,441	cyclictest	0	-21	swapper/11	23:56:31	3
1156777	99	468	466,2	cyclictest	1370676	-21	kworker/4:1+i915-unordered	23:36:31	10
1156777	99	467	466,1	cyclictest	0	-21	swapper/4	20:17:31	10
1156785	99	465	463,2	cyclictest	1389583	-21	kworker/6:0+i915-unordered	00:10:31	12
1156785	99	463	462,1	cyclictest	1173425	-21	kworker/6:0+i915-unordered	19:47:31	12
1156806	99	462	6,455	cyclictest	0	-21	swapper/11	22:26:31	3
1156806	99	461	6,454	cyclictest	0	-21	swapper/11	20:18:31	3
1156806	99	461	20,440	cyclictest	0	-21	swapper/11	21:13:31	3
1156806	99	459	20,438	cyclictest	0	-21	swapper/11	23:36:31	3
1156817	99	455	454,1	cyclictest	0	-21	swapper/14	20:48:31	6
1156815	99	453	452,1	cyclictest	0	-21	swapper/13	21:42:31	5
1156777	99	452	0,451	cyclictest	0	-21	swapper/4	21:10:31	10
1156796	99	451	450,1	cyclictest	0	-21	swapper/9	21:13:31	15
1156788	99	450	24,30	cyclictest	0	-21	swapper/7	20:59:55	13
1156806	99	449	8,439	cyclictest	0	-21	swapper/11	19:27:31	3
1156806	99	449	8,439	cyclictest	0	-21	swapper/11	19:27:31	3
1156767	99	449	24,30	cyclictest	0	-21	swapper/1	19:35:55	1
1156798	99	448	25,30	cyclictest	0	-21	swapper/10	22:02:31	2
1156821	99	447	446,1	cyclictest	1294547	-21	kworker/15:2+i915-unordered	22:26:31	7
1156767	99	447	24,30	cyclictest	0	-21	swapper/1	22:46:52	1
1156785	99	445	0,30	cyclictest	0	-21	swapper/6	23:23:31	12
1156774	99	445	444,1	cyclictest	697	50	irq/159-i915	20:08:31	9
1156767	99	445	19,30	cyclictest	0	-21	swapper/1	00:24:13	1
1156767	99	444	18,424	cyclictest	0	-21	swapper/1	19:10:16	1
1156810	99	443	22,30	cyclictest	0	-21	swapper/12	23:30:31	4
1156806	99	443	1,439	cyclictest	0	-21	swapper/11	00:10:31	3
1156785	99	443	442,1	cyclictest	1350780	-21	kworker/6:2+i915-unordered	23:15:31	12
1156777	99	443	0,442	cyclictest	0	-21	swapper/4	20:09:44	10
1156767	99	443	16,30	cyclictest	0	-21	swapper/1	21:38:18	1
1156806	99	442	1,440	cyclictest	0	-21	swapper/11	19:48:31	3
1156774	99	442	43,398	cyclictest	0	-21	swapper/3	00:03:15	9
1156796	99	441	19,29	cyclictest	0	-21	swapper/9	20:56:31	15
1156767	99	441	22,418	cyclictest	0	-21	swapper/1	23:55:54	1
1156810	99	440	21,29	cyclictest	0	-21	swapper/12	00:08:31	4
1156810	99	440	20,419	cyclictest	0	-21	swapper/12	20:45:53	4
1156777	99	440	437,2	cyclictest	1128056	-21	kworker/4:0+events	19:21:15	10
1156798	99	439	439,0	cyclictest	1366883	-21	kworker/10:1+i915-unordered	00:03:31	2
1156810	99	438	437,1	cyclictest	1209744	-21	kworker/12:2+i915-unordered	20:17:31	4
1156806	99	438	437,1	cyclictest	0	-21	swapper/11	22:33:31	3
1156774	99	438	437,1	cyclictest	697	50	irq/159-i915	20:48:31	9
1156821	99	437	15,28	cyclictest	0	-21	swapper/15	19:41:31	7
1156810	99	437	407,30	cyclictest	0	-21	swapper/12	23:36:31	4
1156796	99	436	435,1	cyclictest	1294494	-21	kworker/9:1+i915-unordered	22:08:31	15
1156796	99	435	433,1	cyclictest	1801	-21	snmpd	20:05:44	15
1156774	99	435	434,1	cyclictest	697	50	irq/159-i915	21:23:31	9
1156806	99	434	432,2	cyclictest	0	-21	swapper/11	21:42:31	3
1156788	99	434	6,29	cyclictest	0	-21	swapper/7	21:25:54	13
1156788	99	433	7,28	cyclictest	0	-21	swapper/7	22:26:54	13
1156788	99	433	6,30	cyclictest	0	-21	swapper/7	22:43:55	13
1156788	99	433	6,30	cyclictest	0	-21	swapper/7	19:32:18	13
1156788	99	433	6,30	cyclictest	0	-21	swapper/7	19:32:18	13
1156788	99	433	6,29	cyclictest	0	-21	swapper/7	22:47:53	13
1156788	99	433	6,29	cyclictest	0	-21	swapper/7	00:28:53	13
1156788	99	433	12,29	cyclictest	0	-21	swapper/7	00:02:55	13
1156788	99	432	5,29	cyclictest	0	-21	swapper/7	19:53:15	13
1156806	99	431	430,1	cyclictest	0	-21	swapper/11	22:08:31	3
1156788	99	431	6,28	cyclictest	0	-21	swapper/7	00:30:15	13
1156785	99	431	430,1	cyclictest	1378729	-21	kworker/6:1+i915-unordered	23:42:31	12
1156817	99	430	430,0	cyclictest	0	-21	swapper/14	00:32:31	6
1156788	99	430	4,29	cyclictest	0	-21	swapper/7	19:13:16	13
1156788	99	430	4,28	cyclictest	0	-21	swapper/7	23:08:15	13
1156788	99	430	3,30	cyclictest	0	-21	swapper/7	23:32:16	13
1156788	99	429	3,29	cyclictest	0	-21	swapper/7	21:37:15	13
1156774	99	429	428,1	cyclictest	697	50	irq/159-i915	20:53:31	9
1156806	99	428	428,0	cyclictest	0	-21	swapper/11	21:18:31	3
1156796	99	428	7,29	cyclictest	0	-21	swapper/9	21:55:31	15
1156796	99	428	10,29	cyclictest	0	-21	swapper/9	19:18:31	15
1156788	99	428	3,28	cyclictest	0	-21	swapper/7	23:26:15	13
1156774	99	428	428,0	cyclictest	697	50	irq/159-i915	00:32:31	9
1156767	99	428	0,427	cyclictest	0	-21	swapper/1	22:40:27	1
1156817	99	427	0,30	cyclictest	0	-21	swapper/14	20:07:16	6
1156806	99	427	425,2	cyclictest	1334620	-21	kworker/11:1+pm	23:31:28	3
1156788	99	427	9,30	cyclictest	0	-21	swapper/7	19:59:27	13
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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