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 Wed Aug 26, 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
2754236	99	703	303,397	cyclictest	0	-21	swapper/11	19:18:42	3
2754253	99	533	10,522	cyclictest	0	-21	swapper/15	23:26:59	7
2754218	99	531	0,530	cyclictest	0	-21	swapper/7	22:46:59	13
2754213	99	527	525,2	cyclictest	2891767	-21	kworker/6:3+i915-unordered	22:20:59	12
2754213	99	527	525,2	cyclictest	2891767	-21	kworker/6:3+i915-unordered	22:20:59	12
2754248	99	521	519,2	cyclictest	0	-21	swapper/14	22:20:59	6
2754248	99	521	519,2	cyclictest	0	-21	swapper/14	22:20:59	6
2754253	99	507	18,488	cyclictest	0	-21	swapper/15	21:28:59	7
2754199	99	503	501,2	cyclictest	3016152	-21	kworker/2:2+i915-unordered	00:31:59	8
2754236	99	496	495,1	cyclictest	0	-21	swapper/11	23:03:59	3
2754253	99	494	492,2	cyclictest	2930537	-21	kworker/15:1+i915-unordered	22:46:59	7
2754199	99	493	492,1	cyclictest	2916616	-21	kworker/2:1+i915-unordered	22:42:59	8
2754203	99	490	488,2	cyclictest	0	-21	swapper/3	00:13:59	9
2754253	99	488	430,29	cyclictest	0	-21	swapper/15	00:27:59	7
2754231	99	484	453,31	cyclictest	0	-21	swapper/10	22:42:59	2
2754236	99	479	477,2	cyclictest	0	-21	swapper/11	19:57:59	3
2754224	99	479	478,0	cyclictest	2880421	-21	kworker/9:0+i915-unordered	22:27:59	15
2754224	99	479	478,0	cyclictest	2880421	-21	kworker/9:0+i915-unordered	22:27:59	15
2754236	99	475	475,0	cyclictest	0	-21	swapper/11	20:52:59	3
2754245	99	468	466,2	cyclictest	0	-21	swapper/13	22:42:59	5
2754224	99	465	465,0	cyclictest	2831378	-21	kworker/9:0+i915-unordered	21:18:59	15
2754231	99	463	462,1	cyclictest	0	-21	swapper/10	00:31:59	2
2754245	99	462	0,461	cyclictest	0	-21	swapper/13	22:20:59	5
2754245	99	462	0,461	cyclictest	0	-21	swapper/13	22:20:59	5
2754236	99	462	461,1	cyclictest	2911869	-21	kworker/11:1+i915-unordered	00:13:59	3
2754245	99	460	459,1	cyclictest	0	-21	swapper/13	23:26:59	5
2754253	99	458	17,29	cyclictest	0	-21	swapper/15	20:10:59	7
2754194	99	458	21,30	cyclictest	0	-21	swapper/1	22:51:59	1
2754245	99	453	452,1	cyclictest	0	-21	swapper/13	22:17:59	5
2754209	99	453	452,1	cyclictest	697	50	irq/159-i915	22:42:59	11
2754236	99	449	10,29	cyclictest	0	-21	swapper/11	22:37:59	3
2754194	99	449	0,30	cyclictest	0	-21	swapper/1	19:20:22	1
2754236	99	448	7,30	cyclictest	0	-21	swapper/11	19:31:59	3
2754209	99	448	447,1	cyclictest	697	50	irq/159-i915	22:20:59	11
2754209	99	448	447,1	cyclictest	697	50	irq/159-i915	22:20:59	11
2754209	99	447	446,1	cyclictest	697	50	irq/159-i915	23:26:59	11
2754194	99	447	445,1	cyclictest	2878282	-21	kworker/u64:7+events_unbound	23:03:59	1
2754241	99	445	0,442	cyclictest	0	-21	swapper/12	22:14:43	4
2754218	99	445	25,419	cyclictest	0	-21	swapper/7	20:21:22	13
2754218	99	445	25,419	cyclictest	0	-21	swapper/7	19:51:22	13
2754218	99	445	24,420	cyclictest	0	-21	swapper/7	20:07:21	13
2754218	99	445	24,420	cyclictest	0	-21	swapper/7	00:13:42	13
2754218	99	444	443,1	cyclictest	2851517	-21	kworker/7:2+i915-unordered	21:05:59	13
2754218	99	444	443,1	cyclictest	0	-21	swapper/7	20:01:59	13
2754218	99	444	24,419	cyclictest	0	-21	swapper/7	22:19:21	13
2754218	99	444	24,419	cyclictest	0	-21	swapper/7	22:02:45	13
2754218	99	444	24,419	cyclictest	0	-21	swapper/7	20:46:42	13
2754218	99	444	23,420	cyclictest	0	-21	swapper/7	21:02:21	13
2754218	99	444	22,421	cyclictest	0	-21	swapper/7	22:14:21	13
2754190	99	444	0,1	cyclictest	0	-21	swapper/0	23:25:44	0
2754190	99	444	0,0	cyclictest	0	-21	swapper/0	22:32:43	0
2754224	99	443	443,0	cyclictest	2859702	-21	kworker/9:1+i915-unordered	21:30:59	15
2754218	99	443	23,419	cyclictest	0	-21	swapper/7	22:07:42	13
2754205	99	443	443,0	cyclictest	0	-21	swapper/4	19:47:55	10
2754190	99	443	0,0	cyclictest	0	-21	swapper/0	23:51:43	0
2754190	99	443	0,0	cyclictest	0	-21	swapper/0	22:37:44	0
2754190	99	443	0,0	cyclictest	0	-21	swapper/0	20:22:22	0
2754190	99	443	0,0	cyclictest	0	-21	swapper/0	20:18:46	0
2754190	99	443	0,0	cyclictest	0	-21	swapper/0	20:12:43	0
2754241	99	442	0,25	cyclictest	0	-21	swapper/12	23:47:43	4
2754203	99	442	20,421	cyclictest	0	-21	swapper/3	23:49:41	9
2754203	99	442	20,421	cyclictest	0	-21	swapper/3	23:32:21	9
2754203	99	442	19,422	cyclictest	0	-21	swapper/3	20:30:46	9
2754245	99	441	440,1	cyclictest	697	50	irq/159-i915	19:17:59	5
2754241	99	441	0,440	cyclictest	0	-21	swapper/12	21:55:41	4
2754241	99	441	0,440	cyclictest	0	-21	swapper/12	21:33:21	4
2754241	99	441	0,440	cyclictest	0	-21	swapper/12	21:19:22	4
2754241	99	441	0,440	cyclictest	0	-21	swapper/12	19:12:22	4
2754203	99	441	437,3	cyclictest	3000178	-21	kworker/3:0+pm	00:08:33	9
2754203	99	441	19,421	cyclictest	0	-21	swapper/3	23:16:22	9
2754199	99	441	438,2	cyclictest	2806783	-21	kworker/u64:10+events_unbound	21:30:59	8
2754218	99	440	438,1	cyclictest	1818	-21	snmpd	21:31:31	13
2754194	99	440	25,414	cyclictest	0	-21	swapper/1	21:18:59	1
2754253	99	439	19,419	cyclictest	0	-21	swapper/15	21:35:22	7
2754209	99	439	438,1	cyclictest	697	50	irq/159-i915	22:17:59	11
2754203	99	439	18,420	cyclictest	0	-21	swapper/3	22:39:22	9
2754203	99	438	16,421	cyclictest	0	-21	swapper/3	19:38:44	9
2754203	99	438	16,421	cyclictest	0	-21	swapper/3	19:38:44	9
2754203	99	438	15,422	cyclictest	0	-21	swapper/3	23:09:20	9
2754253	99	437	16,420	cyclictest	0	-21	swapper/15	20:52:22	7
2754241	99	437	436,1	cyclictest	1818	-21	snmpd	19:47:55	4
2754203	99	437	436,1	cyclictest	1818	-21	snmpd	22:50:10	9
2754203	99	437	17,419	cyclictest	0	-21	swapper/3	22:08:22	9
2754203	99	437	16,420	cyclictest	0	-21	swapper/3	20:12:43	9
2754245	99	436	435,1	cyclictest	0	-21	swapper/13	22:46:59	5
2754245	99	436	434,2	cyclictest	0	-21	swapper/13	00:13:59	5
2754209	99	436	23,412	cyclictest	0	-21	swapper/5	21:53:59	11
2754253	99	435	15,419	cyclictest	0	-21	swapper/15	23:19:40	7
2754203	99	435	13,421	cyclictest	0	-21	swapper/3	21:37:44	9
2754253	99	434	432,1	cyclictest	2812044	-21	kworker/15:0+i915-unordered	20:15:22	7
2754253	99	434	14,419	cyclictest	0	-21	swapper/15	20:27:22	7
2754253	99	434	13,420	cyclictest	0	-21	swapper/15	22:07:21	7
2754245	99	434	432,1	cyclictest	2782922	-21	kworker/13:0+i915-unordered	19:36:21	5
2754245	99	434	432,1	cyclictest	2782922	-21	kworker/13:0+i915-unordered	19:36:21	5
2754224	99	434	19,414	cyclictest	0	-21	swapper/9	22:55:59	15
2754203	99	434	432,1	cyclictest	2860320	-21	kworker/3:2+i915-unordered	21:15:21	9
2754194	99	434	433,1	cyclictest	697	50	irq/159-i915	19:57:59	1
2754253	99	433	13,419	cyclictest	0	-21	swapper/15	21:06:20	7
2754253	99	433	11,421	cyclictest	0	-21	swapper/15	23:07:21	7
2754245	99	433	11,421	cyclictest	0	-21	swapper/13	23:42:20	5
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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