OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

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 22, 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
83973	99	485	485,0	cyclictest	317895	-21	kworker/11:2+i915-unordered	00:23:08	3
83973	99	479	479,0	cyclictest	155746	-21	kworker/11:0+i915-unordered	20:33:08	3
83973	99	479	479,0	cyclictest	155746	-21	kworker/11:0+i915-unordered	20:33:08	3
83957	99	475	475,0	cyclictest	92580	-21	kworker/7:0+i915-unordered	19:16:08	13
83954	99	469	469,0	cyclictest	0	-21	swapper/6	19:41:08	12
83952	99	466	22,28	cyclictest	0	-21	swapper/5	19:50:31	11
83987	99	454	452,1	cyclictest	112781	-21	kworker/14:1+i915-unordered	19:41:08	6
83962	99	448	23,424	cyclictest	97	-21	ksoftirqd/8	19:09:04	14
83936	99	448	445,2	cyclictest	128774	-21	kworker/u64:10+events_unbound	21:13:08	1
83952	99	447	22,30	cyclictest	0	-21	swapper/5	00:07:30	11
83952	99	447	21,30	cyclictest	0	-21	swapper/5	23:05:30	11
83980	99	445	445,0	cyclictest	697	50	irq/159-i915	19:35:08	4
83952	99	445	21,29	cyclictest	0	-21	swapper/5	20:50:32	11
83952	99	441	23,415	cyclictest	0	-21	swapper/5	22:46:54	11
83947	99	440	439,1	cyclictest	0	-21	swapper/4	19:35:08	10
83985	99	438	435,2	cyclictest	312626	-21	kworker/u64:8+events_unbound	00:00:08	5
83952	99	438	14,29	cyclictest	0	-21	swapper/5	22:13:50	11
83936	99	437	20,416	cyclictest	0	-21	swapper/1	21:35:08	1
83980	99	432	432,0	cyclictest	697	50	irq/159-i915	00:23:08	4
83957	99	432	11,29	cyclictest	0	-21	swapper/7	20:02:08	13
83980	99	431	430,1	cyclictest	697	50	irq/159-i915	23:32:08	4
83966	99	431	9,421	cyclictest	0	-21	swapper/9	20:19:52	15
83957	99	431	7,28	cyclictest	0	-21	swapper/7	21:22:08	13
83936	99	431	11,30	cyclictest	0	-21	swapper/1	21:32:08	1
83968	99	430	10,419	cyclictest	0	-21	swapper/10	00:21:29	2
83943	99	429	3,29	cyclictest	0	-21	swapper/3	19:38:51	9
83939	99	429	0,428	cyclictest	0	-21	swapper/2	21:05:19	8
83985	99	428	427,1	cyclictest	161087	-21	kworker/13:0+pm	20:48:19	5
83980	99	428	427,1	cyclictest	697	50	irq/159-i915	21:31:08	4
83947	99	428	427,1	cyclictest	0	-21	swapper/4	00:23:08	10
83980	99	427	426,1	cyclictest	697	50	irq/159-i915	20:33:08	4
83980	99	427	426,1	cyclictest	697	50	irq/159-i915	20:33:08	4
83952	99	427	0,30	cyclictest	0	-21	swapper/5	20:42:31	11
83990	99	426	425,1	cyclictest	160	-21	ksoftirqd/15	19:16:08	7
83980	99	426	423,2	cyclictest	124824	-21	kworker/12:2+i915-unordered	20:18:52	4
83973	99	426	6,419	cyclictest	0	-21	swapper/11	22:41:30	3
83968	99	426	423,2	cyclictest	92537	-21	kworker/u64:7+events_unbound	19:20:31	2
83954	99	426	426,0	cyclictest	0	-21	swapper/6	19:35:08	12
83980	99	425	4,420	cyclictest	0	-21	swapper/12	21:14:29	4
83980	99	425	425,0	cyclictest	697	50	irq/159-i915	20:05:08	4
83968	99	425	422,2	cyclictest	124767	-21	kworker/u64:7+events_unbound	20:56:52	2
83966	99	425	5,419	cyclictest	0	-21	swapper/9	22:44:29	15
83947	99	425	425,0	cyclictest	0	-21	swapper/4	23:32:08	10
83968	99	424	3,420	cyclictest	0	-21	swapper/10	22:51:50	2
83966	99	424	5,418	cyclictest	0	-21	swapper/9	00:14:30	15
83957	99	424	423,1	cyclictest	0	-21	swapper/7	21:31:08	13
83952	99	424	0,30	cyclictest	0	-21	swapper/5	22:35:30	11
83957	99	423	421,1	cyclictest	128943	-21	kworker/7:0+i915-unordered	20:05:08	13
83952	99	423	25,396	cyclictest	0	-21	swapper/5	21:11:30	11
83952	99	423	2,30	cyclictest	0	-21	swapper/5	23:56:29	11
83947	99	423	421,2	cyclictest	0	-21	swapper/4	21:31:08	10
83936	99	423	420,3	cyclictest	1818	-21	snmpd	00:24:01	1
83952	99	422	24,396	cyclictest	0	-21	swapper/5	20:47:50	11
83990	99	421	4,28	cyclictest	0	-21	swapper/15	22:46:08	7
83952	99	421	23,395	cyclictest	0	-21	swapper/5	19:13:53	11
83952	99	421	22,398	cyclictest	0	-21	swapper/5	23:22:53	11
83952	99	421	21,397	cyclictest	0	-21	swapper/5	23:34:53	11
83947	99	421	421,0	cyclictest	0	-21	swapper/4	20:33:08	10
83947	99	421	421,0	cyclictest	0	-21	swapper/4	20:33:08	10
83980	99	420	418,1	cyclictest	124824	-21	kworker/12:2+i915-unordered	20:01:32	4
83968	99	420	22,397	cyclictest	0	-21	swapper/10	20:09:29	2
83968	99	420	22,397	cyclictest	0	-21	swapper/10	00:09:31	2
83947	99	420	417,2	cyclictest	141000	-21	kworker/4:2+events	21:14:29	10
83947	99	420	0,419	cyclictest	0	-21	swapper/4	22:57:08	10
83990	99	419	0,29	cyclictest	0	-21	swapper/15	22:03:08	7
83980	99	419	418,0	cyclictest	0	-21	swapper/12	21:27:29	4
83968	99	419	22,396	cyclictest	0	-21	swapper/10	20:49:30	2
83968	99	419	21,397	cyclictest	0	-21	swapper/10	19:14:30	2
83952	99	419	23,394	cyclictest	0	-21	swapper/5	20:16:53	11
83952	99	419	23,393	cyclictest	0	-21	swapper/5	22:55:31	11
83952	99	419	22,0	cyclictest	0	-21	swapper/5	21:15:30	11
83952	99	419	20,397	cyclictest	0	-21	swapper/5	20:38:31	11
83947	99	419	419,0	cyclictest	0	-21	swapper/4	20:05:08	10
83990	99	418	0,27	cyclictest	0	-21	swapper/15	00:12:08	7
83973	99	418	418,0	cyclictest	0	-21	swapper/11	22:18:08	3
83952	99	418	23,393	cyclictest	0	-21	swapper/5	20:04:51	11
83952	99	418	22,394	cyclictest	0	-21	swapper/5	00:32:31	11
83952	99	418	21,394	cyclictest	0	-21	swapper/5	22:22:50	11
83947	99	418	417,0	cyclictest	0	-21	swapper/4	20:18:52	10
83990	99	417	25,392	cyclictest	0	-21	swapper/15	21:27:08	7
83990	99	417	0,28	cyclictest	0	-21	swapper/15	22:33:08	7
83985	99	417	25,391	cyclictest	0	-21	swapper/13	19:31:08	5
83980	99	417	417,0	cyclictest	0	-21	swapper/12	23:03:30	4
83952	99	417	23,392	cyclictest	0	-21	swapper/5	00:28:50	11
83952	99	417	22,393	cyclictest	0	-21	swapper/5	20:00:54	11
83952	99	417	22,393	cyclictest	0	-21	swapper/5	19:32:52	11
83952	99	417	22,393	cyclictest	0	-21	swapper/5	19:25:52	11
83952	99	417	20,395	cyclictest	0	-21	swapper/5	20:30:31	11
83952	99	417	20,395	cyclictest	0	-21	swapper/5	20:30:31	11
83939	99	417	22,395	cyclictest	0	-21	swapper/2	00:15:08	8
83936	99	417	24,393	cyclictest	0	-21	swapper/1	21:20:08	1
83987	99	416	0,26	cyclictest	0	-21	swapper/14	22:38:08	6
83980	99	416	414,2	cyclictest	326095	-21	kworker/12:1+events	00:04:29	4
83973	99	416	19,396	cyclictest	0	-21	swapper/11	23:21:29	3
83973	99	416	17,398	cyclictest	0	-21	swapper/11	21:18:51	3
83973	99	416	17,398	cyclictest	0	-21	swapper/11	20:22:51	3
83966	99	416	17,398	cyclictest	0	-21	swapper/9	19:44:29	15
83952	99	416	22,392	cyclictest	0	-21	swapper/5	20:58:31	11
83952	99	416	21,393	cyclictest	0	-21	swapper/5	21:08:30	11
83947	99	416	0,0	cyclictest	0	-21	swapper/4	23:27:08	10
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2019-05-28 - 00:17