OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #c, slot #4

Intel(R) Celeron(R) CPU N3350 @ 1.10GHz, Linux 5.9.1-rt18 (Profile)

Latency plot of system in rack #c, slot #4

Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 rackcslot4.osadl.org (updated Sun Jun 20, 2021 00:43:48)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2754	99	30	2,22	cyclictest	14432	-21	apt-get	23:30:18	1
2754	99	29	17,7	cyclictest	23541	-21	apt-get	22:10:16	1
2754	99	26	2,5	cyclictest	6164	-21	apt-get	19:20:14	1
2754	99	26	2,20	cyclictest	20161	-21	apt-get	23:50:13	1
2754	99	26	1,23	cyclictest	13690	-21	apt-esm-hook	19:45:21	1
2753	99	26	2,16	cyclictest	7278	-21	apt-get	23:05:15	0
2754	99	24	3,15	cyclictest	29270	-21	apt-get	22:30:12	1
2754	99	24	16,4	cyclictest	27651	-40	apt-check	00:15:09	1
2754	99	24	12,7	cyclictest	22262	-21	apt-get	20:15:13	1
2753	99	24	3,14	cyclictest	14611	-21	apt-esm-hook	21:40:13	0
2753	99	24	2,15	cyclictest	23722	-21	apt-esm-hook	20:20:14	0
2753	99	24	2,15	cyclictest	22102	-40	apt-check	22:05:12	0
2754	99	23	9,10	cyclictest	13007	-21	apt-get	23:25:13	1
2754	99	23	2,15	cyclictest	5999	-21	apt-get	21:10:22	1
2754	99	23	2,15	cyclictest	25884	-21	apt-get	00:10:12	1
2754	99	23	2,14	cyclictest	31971	-21	apt-get	00:30:13	1
2754	99	23	17,3	cyclictest	22102	-40	apt-check	22:05:09	1
2754	99	23	1,4	cyclictest	26418	-21	apt-get	22:20:14	1
2754	99	23	14,7	cyclictest	20790	-21	cat	22:00:20	1
2754	99	23	1,19	cyclictest	1183	-21	lsb_release	20:54:59	1
2753	99	23	2,15	cyclictest	30709	-21	apt-esm-hook	22:35:13	0
2753	99	23	2,15	cyclictest	26567	-21	apt-get	20:30:15	0
2753	99	23	2,15	cyclictest	13664	-40	apt-check	19:45:14	0
2753	99	23	2,15	cyclictest	11591	-21	apt-esm-hook	23:20:14	0
2753	99	23	2,14	cyclictest	5985	-40	apt-check	21:10:11	0
2753	99	23	2,14	cyclictest	2987	-21	apt-esm-hook	22:50:14	0
2753	99	23	2,14	cyclictest	29440	-21	apt-get	20:40:11	0
2753	99	23	2,14	cyclictest	20171	-21	apt-esm-hook	23:50:13	0
2753	99	23	2,14	cyclictest	17997	-21	apt-esm-hook	20:00:15	0
2754	99	22	4,11	cyclictest	30867	-21	apt-get	20:45:12	1
2754	99	22	2,14	cyclictest	9017	-21	apt-get	19:30:16	1
2754	99	22	2,14	cyclictest	7425	-21	apt-get	21:15:12	1
2754	99	22	2,14	cyclictest	7289	-21	apt-esm-hook	23:05:16	1
2754	99	22	2,14	cyclictest	27844	-21	apt-get	22:25:15	1
2754	99	22	2,14	cyclictest	2784	-21	apt-get	21:00:15	1
2754	99	22	2,14	cyclictest	19413	-21	apt-get	20:05:14	1
2754	99	22	2,14	cyclictest	17311	-21	apt-get	23:40:14	1
2754	99	22	2,14	cyclictest	16027	-21	apt-get	21:45:14	1
2754	99	22	2,14	cyclictest	13155	-21	apt-get	21:35:14	1
2754	99	22	2,13	cyclictest	11728	-21	apt-get	21:30:14	1
2754	99	22	2,13	cyclictest	10302	-21	apt-get	21:25:16	1
2754	99	22	14,6	cyclictest	10793	-21	gltestperf	19:35:17	1
2754	99	22	14,5	cyclictest	17458	-21	apt-get	21:50:13	1
2754	99	22	0,3	cyclictest	1519	-40	apt-check	22:45:08	1
2753	99	22	7,9	cyclictest	27993	-21	apt-get	20:35:16	0
2753	99	22	2,14	cyclictest	30877	-21	apt-esm-hook	20:45:13	0
2753	99	22	2,14	cyclictest	29120	-21	apt-get	00:20:13	0
2753	99	22	2,14	cyclictest	27666	-21	apt-get	00:15:20	0
2753	99	22	2,14	cyclictest	23551	-21	apt-esm-hook	22:10:17	0
2753	99	22	2,14	cyclictest	17321	-21	apt-esm-hook	23:40:14	0
2753	99	22	2,14	cyclictest	10452	-21	apt-esm-hook	19:35:15	0
2753	99	22	2,13	cyclictest	4725	-21	apt-esm-hook	19:15:14	0
2753	99	22	2,13	cyclictest	29280	-21	apt-esm-hook	22:30:13	0
2753	99	22	2,13	cyclictest	22272	-21	apt-esm-hook	20:15:12	0
2753	99	22	2,13	cyclictest	18747	-21	apt-esm-hook	23:45:14	0
2753	99	22	1,15	cyclictest	16024	-21	/usr/sbin/munin	21:45:32	0
2754	99	21	8,8	cyclictest	710	50	irq/130-enp2s0	23:45:13	1
2754	99	21	7,9	cyclictest	4715	-21	apt-get	19:15:14	1
2754	99	21	7,10	cyclictest	26567	-21	apt-get	20:30:15	1
2754	99	21	2,14	cyclictest	23042	-21	apt-esm-hook	00:00:14	1
2754	99	21	2,14	cyclictest	1321	-21	apt-get	20:55:16	1
2754	99	21	2,13	cyclictest	999	-21	apt-get	00:35:13	1
2754	99	21	2,13	cyclictest	8877	-21	apt-get	21:20:12	1
2754	99	21	2,13	cyclictest	32145	-21	apt-get	22:40:14	1
2754	99	21	2,13	cyclictest	30544	-21	apt-get	00:25:14	1
2754	99	21	2,13	cyclictest	29450	-21	apt-esm-hook	20:40:11	1
2754	99	21	2,13	cyclictest	20836	-21	apt-get	20:10:15	1
2754	99	21	2,13	cyclictest	11581	-21	apt-get	23:20:14	1
2754	99	21	2,13	cyclictest	10140	-21	apt-esm-hook	23:15:15	1
2754	99	21	1,3	cyclictest	8500	-1	kworker/1:1H	23:15:01	1
2754	99	21	1,17	cyclictest	18883	-21	apt-get	21:55:12	1
2754	99	21	1,13	cyclictest	24968	-21	apt-get	22:15:15	1
2753	99	21	5,11	cyclictest	4215	-21	apt-get	21:05:21	0
2753	99	21	2,14	cyclictest	17458	-21	apt-get	21:50:13	0
2753	99	21	2,13	cyclictest	8887	-21	apt-esm-hook	21:20:12	0
2753	99	21	2,13	cyclictest	6780	-21	snmp_o5powerctl	23:00:23	0
2753	99	21	2,13	cyclictest	3296	-21	apt-esm-hook	19:10:13	0
2753	99	21	2,13	cyclictest	32155	-21	apt-esm-hook	22:40:12	0
2753	99	21	2,13	cyclictest	31981	-21	apt-esm-hook	00:30:12	0
2753	99	21	2,13	cyclictest	30554	-21	apt-esm-hook	00:25:14	0
2753	99	21	2,13	cyclictest	25894	-21	apt-esm-hook	00:10:12	0
2753	99	21	2,13	cyclictest	20341	-21	apt-esm-hook	22:00:16	0
2753	99	21	2,13	cyclictest	18894	-21	apt-esm-hook	21:55:13	0
2753	99	21	2,13	cyclictest	16542	-21	apt-esm-hook	19:55:14	0
2753	99	21	2,13	cyclictest	13017	-21	apt-esm-hook	23:25:14	0
2753	99	21	2,13	cyclictest	1009	-21	apt-esm-hook	00:35:13	0
2753	99	21	2,12	cyclictest	32302	-21	apt-esm-hook	20:50:17	0
2753	99	21	2,12	cyclictest	13165	-21	apt-esm-hook	21:35:15	0
2754	99	20	2,13	cyclictest	7590	-21	apt-get	19:25:14	1
2754	99	20	2,13	cyclictest	3286	-21	apt-get	19:10:13	1
2754	99	20	2,13	cyclictest	2977	-21	apt-get	22:50:14	1
2754	99	20	2,13	cyclictest	23712	-21	apt-get	20:20:15	1
2754	99	20	2,13	cyclictest	11890	-21	apt-get	19:40:14	1
2754	99	20	2,12	cyclictest	17987	-21	apt-get	20:00:14	1
2754	99	20	2,12	cyclictest	15107	-21	apt-get	19:50:16	1
2754	99	20	15,3	cyclictest	5678	-21	apt	23:00:00	1
2754	99	20	1,13	cyclictest	15859	-21	apt-get	23:35:12	1
2754	99	20	0,3	cyclictest	30398	-21	munin-run	00:25:00	1
2753	99	20	2,13	cyclictest	15117	-21	apt-esm-hook	19:50:15	0
2753	99	20	2,13	cyclictest	11900	-21	apt-esm-hook	19:40:14	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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