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 Fri Feb 20, 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
1307206	99	503	501,2	cyclictest	1484670	-21	kworker/6:0+i915-unordered	22:53:35	12
1307195	99	497	30,466	cyclictest	0	-21	swapper/3	22:35:35	9
1307224	99	491	490,1	cyclictest	1440599	-21	kworker/10:0+i915-unordered	21:58:35	2
1307224	99	488	487,1	cyclictest	1404376	-21	kworker/10:2+i915-unordered	21:21:35	2
1307224	99	488	487,1	cyclictest	1404376	-21	kworker/10:2+i915-unordered	21:21:35	2
1307224	99	488	19,468	cyclictest	0	-21	swapper/10	21:10:35	2
1307234	99	487	4,29	cyclictest	0	-21	swapper/12	19:27:35	4
1307218	99	486	2,483	cyclictest	0	-21	swapper/9	21:18:35	15
1307218	99	486	2,483	cyclictest	0	-21	swapper/9	21:18:35	15
1307218	99	483	482,1	cyclictest	1481650	-21	kworker/9:2+i915-unordered	22:47:35	15
1307218	99	481	480,1	cyclictest	1472682	-21	kworker/9:0+i915-unordered	22:51:35	15
1307218	99	479	478,1	cyclictest	1220579	-21	kworker/9:3+i915-unordered	19:27:35	15
1307234	99	476	19,456	cyclictest	0	-21	swapper/12	22:50:35	4
1307187	99	472	18,58	cyclictest	0	-21	swapper/1	22:31:22	1
1307195	99	469	465,3	cyclictest	0	-21	swapper/3	00:32:35	9
1307202	99	468	467,1	cyclictest	0	-21	swapper/5	00:05:35	11
1307202	99	468	467,1	cyclictest	0	-21	swapper/5	00:05:35	11
1307214	99	457	456,1	cyclictest	1317765	-21	kworker/8:1+i915-unordered	19:26:35	14
1307202	99	455	439,16	cyclictest	0	-21	swapper/5	23:12:35	11
1307187	99	452	24,30	cyclictest	0	-21	swapper/1	20:49:30	1
1307234	99	451	10,439	cyclictest	0	-21	swapper/12	00:10:35	4
1307234	99	451	10,439	cyclictest	0	-21	swapper/12	00:10:35	4
1307246	99	449	23,30	cyclictest	0	-21	swapper/15	22:55:17	7
1307246	99	449	23,29	cyclictest	0	-21	swapper/15	21:56:20	7
1307246	99	449	22,30	cyclictest	0	-21	swapper/15	23:43:19	7
1307224	99	449	447,2	cyclictest	1561273	-21	kworker/10:1+i915-unordered	00:26:35	2
1307187	99	449	22,30	cyclictest	0	-21	swapper/1	19:30:57	1
1307246	99	448	20,30	cyclictest	0	-21	swapper/15	22:38:18	7
1307234	99	448	8,439	cyclictest	0	-21	swapper/12	21:42:35	4
1307242	99	447	417,30	cyclictest	0	-21	swapper/14	00:12:35	6
1307242	99	447	417,30	cyclictest	0	-21	swapper/14	00:12:35	6
1307234	99	446	445,1	cyclictest	0	-21	swapper/12	21:58:35	4
1307187	99	446	19,30	cyclictest	0	-21	swapper/1	00:11:19	1
1307187	99	446	19,30	cyclictest	0	-21	swapper/1	00:11:19	1
1307234	99	445	7,12	cyclictest	0	-21	swapper/12	22:43:35	4
1307234	99	443	441,2	cyclictest	1221183	-21	kworker/12:5+i915-unordered	19:52:35	4
1307187	99	443	18,29	cyclictest	0	-21	swapper/1	21:14:20	1
1307234	99	441	0,439	cyclictest	0	-21	swapper/12	21:18:35	4
1307234	99	441	0,439	cyclictest	0	-21	swapper/12	21:18:35	4
1307183	99	441	19,30	cyclictest	0	-21	swapper/0	22:59:20	0
1307224	99	440	19,421	cyclictest	0	-21	swapper/10	22:34:57	2
1307214	99	440	2,437	cyclictest	0	-21	swapper/8	20:53:30	14
1307200	99	440	439,1	cyclictest	697	50	irq/159-i915	22:53:35	10
1307187	99	440	19,29	cyclictest	0	-21	swapper/1	21:30:35	1
1307246	99	438	434,3	cyclictest	1801	-21	snmpd	22:08:47	7
1307200	99	438	437,1	cyclictest	697	50	irq/159-i915	19:27:35	10
1307195	99	438	17,30	cyclictest	0	-21	swapper/3	00:36:34	9
1307246	99	437	14,30	cyclictest	0	-21	swapper/15	20:51:21	7
1307234	99	437	437,0	cyclictest	0	-21	swapper/12	21:06:35	4
1307224	99	437	436,1	cyclictest	0	-21	swapper/10	21:06:35	2
1307218	99	437	436,1	cyclictest	1408549	-21	kworker/9:1+i915-unordered	21:27:35	15
1307218	99	437	436,1	cyclictest	1408549	-21	kworker/9:1+i915-unordered	21:27:35	15
1307191	99	437	16,29	cyclictest	0	-21	swapper/2	20:50:35	8
1307210	99	435	38,395	cyclictest	19	1	rcu_preempt	21:34:30	13
1307191	99	435	16,30	cyclictest	0	-21	swapper/2	19:57:35	8
1307206	99	434	20,413	cyclictest	0	-21	swapper/6	19:49:59	12
1307242	99	433	15,418	cyclictest	0	-21	swapper/14	23:56:34	6
1307195	99	433	13,28	cyclictest	0	-21	swapper/3	20:15:35	9
1307191	99	433	432,1	cyclictest	0	-21	swapper/2	22:50:35	8
1307200	99	431	430,1	cyclictest	697	50	irq/159-i915	21:18:35	10
1307200	99	431	430,1	cyclictest	697	50	irq/159-i915	21:18:35	10
1307195	99	431	16,29	cyclictest	0	-21	swapper/3	00:03:34	9
1307234	99	430	2,425	cyclictest	0	-21	swapper/12	22:47:35	4
1307218	99	430	428,1	cyclictest	0	-21	swapper/9	22:08:35	15
1307214	99	429	428,1	cyclictest	1801	-21	snmpd	23:46:31	14
1307242	99	427	5,30	cyclictest	0	-21	swapper/14	22:56:35	6
1307237	99	427	0,426	cyclictest	0	-21	swapper/13	19:30:35	5
1307234	99	427	426,0	cyclictest	1561194	-21	kworker/12:2+i915-unordered	00:30:35	4
1307200	99	427	426,1	cyclictest	697	50	irq/159-i915	00:10:35	10
1307200	99	427	426,1	cyclictest	697	50	irq/159-i915	00:10:35	10
1307195	99	426	11,30	cyclictest	0	-21	swapper/3	20:31:35	9
1307234	99	425	422,2	cyclictest	1349121	-21	kworker/12:1+i915-unordered	20:35:35	4
1307200	99	425	423,1	cyclictest	697	50	irq/159-i915	22:35:35	10
1307200	99	425	422,2	cyclictest	697	50	irq/159-i915	00:01:35	10
1307195	99	425	5,30	cyclictest	0	-21	swapper/3	20:26:35	9
1307224	99	424	0,30	cyclictest	0	-21	swapper/10	23:14:57	2
1307210	99	424	423,1	cyclictest	0	-21	swapper/7	20:03:32	13
1307202	99	424	423,1	cyclictest	0	-21	swapper/5	00:29:59	11
1307200	99	424	423,1	cyclictest	697	50	irq/159-i915	20:12:35	10
1307200	99	423	25,397	cyclictest	0	-21	swapper/4	22:39:58	10
1307183	99	423	393,30	cyclictest	0	-21	swapper/0	19:26:35	0
1307242	99	422	422,0	cyclictest	0	-21	swapper/14	23:53:35	6
1307202	99	422	419,2	cyclictest	1323911	-21	kworker/u64:6+events_unbound	19:30:35	11
1307242	99	421	419,1	cyclictest	1801	-21	snmpd	23:30:31	6
1307229	99	421	420,1	cyclictest	0	-21	swapper/11	23:04:57	3
1307224	99	421	24,396	cyclictest	0	-21	swapper/10	23:29:57	2
1307200	99	421	0,420	cyclictest	0	-21	swapper/4	21:05:58	10
1307218	99	420	417,2	cyclictest	1492771	-21	kworker/u64:4+events_unbound	22:57:35	15
1307242	99	419	0,26	cyclictest	0	-21	swapper/14	22:18:35	6
1307234	99	419	418,1	cyclictest	1327967	-21	kworker/12:1+i915-unordered	19:38:35	4
1307234	99	419	418,1	cyclictest	0	-21	swapper/12	00:26:35	4
1307234	99	419	19,399	cyclictest	0	-21	swapper/12	20:30:58	4
1307191	99	419	416,2	cyclictest	1496805	-21	kworker/u64:7+events_unbound	23:03:35	8
1307191	99	419	25,394	cyclictest	0	-21	swapper/2	22:00:35	8
1307187	99	419	419,0	cyclictest	1424630	-21	kworker/1:1+pm	22:08:47	1
1307234	99	418	18,399	cyclictest	0	-21	swapper/12	23:23:57	4
1307224	99	418	22,395	cyclictest	0	-21	swapper/10	20:27:59	2
1307195	99	418	0,27	cyclictest	0	-21	swapper/3	23:06:35	9
1307234	99	417	18,398	cyclictest	0	-21	swapper/12	20:56:58	4
1307224	99	417	23,392	cyclictest	0	-21	swapper/10	20:04:58	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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