OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #d, slot #7

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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

Characteristics of the 100 highest latencies:

System rackdslot7.osadl.org (updated Wed Mar 24, 2021 00:45:34)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1556862	2	234	178,48	sleep2	0	-21	swapper/2	19:08:56	2
1556930	2	223	174,41	sleep0	0	-21	swapper/0	19:09:46	0
1556592	2	222	184,31	sleep3	0	-21	swapper/3	19:05:31	3
1556851	2	218	179,31	sleep1	0	-21	swapper/1	19:08:46	1
1598482	2	185	0,2	sleep3	0	-21	swapper/3	20:00:02	3
1818134	2	173	0,4	sleep0	1557209	90	cyclictest	00:25:14	0
1818134	2	173	0,4	sleep0	1557209	90	cyclictest	00:25:14	0
1733825	2	170	0,3	sleep3	0	-21	swapper/3	22:45:04	3
1562293	2	161	0,3	sleep3	0	-21	swapper/3	19:15:05	3
1562293	2	161	0,3	sleep3	0	-21	swapper/3	19:15:05	3
1715402	2	95	0,4	sleep0	1715391	-21	irqstats	22:20:13	0
1689244	2	89	0,2	sleep1	0	-21	swapper/1	21:50:05	1
1689244	2	89	0,2	sleep1	0	-21	swapper/1	21:50:04	1
1749718	2	71	0,4	sleep2	33	-21	ksoftirqd/2	23:04:55	2
1749718	2	71	0,4	sleep2	33	-21	ksoftirqd/2	23:04:55	2
1627064	2	69	0,4	sleep0	1627066	-21	gltestperf	20:35:01	0
1557209	90	64	58,4	cyclictest	1778893	-21	grep	23:40:03	0
1557209	90	64	58,4	cyclictest	1778893	-21	grep	23:40:02	0
1557234	90	63	57,3	cyclictest	1760634	-21	grep	23:15:12	2
1764824	2	61	0,1	sleep2	0	-21	swapper/2	23:20:13	2
1557234	90	61	56,3	cyclictest	1618087	-21	head	20:20:20	2
1557209	90	61	1,57	cyclictest	1796774	-21	if_enp3s0	00:00:10	0
1557234	90	59	54,3	cyclictest	1683684	-21	sed	21:40:20	2
1557234	90	59	53,3	cyclictest	1571840	-21	sed	19:25:12	2
1557209	90	59	54,3	cyclictest	1665184	-21	cpuspeed_turbos	21:20:09	0
1557209	90	59	52,5	cyclictest	1825181	-21	cpuspeed_turbos	00:35:09	0
1557209	90	59	2,54	cyclictest	1587146	-21	entropy	19:45:09	0
1557234	90	58	52,3	cyclictest	1656638	-21	grep	21:10:06	2
1557234	90	58	52,3	cyclictest	1656638	-21	grep	21:10:06	2
1557234	90	58	52,3	cyclictest	1578882	-21	cut	19:35:07	2
1557209	90	58	53,3	cyclictest	1571405	-21	if_enp2s0	19:25:09	0
1557209	90	58	52,4	cyclictest	1695442	-21	tail	21:55:16	0
1557209	90	58	52,4	cyclictest	1644447	-21	fschecks_time	20:55:08	0
1557234	90	57	51,3	cyclictest	1767455	-21	uniq	23:25:07	2
1557234	90	57	51,3	cyclictest	1673841	-21	ls	21:30:11	2
1557234	90	57	51,3	cyclictest	1673841	-21	ls	21:30:10	2
1557234	90	57	49,4	cyclictest	1640550	-21	cut	20:50:09	2
1557209	90	57	50,4	cyclictest	1597338	-21	grep	19:55:19	0
1756636	2	56	0,2	sleep3	0	-21	swapper/3	23:10:15	3
1557234	90	56	50,3	cyclictest	1738640	-21	unixbench_multi	22:50:06	2
1557209	90	56	51,3	cyclictest	1659736	-21	unixbench-2d	21:15:02	0
1557209	90	56	51,3	cyclictest	1659736	-21	unixbench-2d	21:15:01	0
1557209	90	56	49,4	cyclictest	1643438	-21	grep	20:55:02	0
1557234	90	55	49,3	cyclictest	1627950	-21	tune2fs	20:35:07	2
1557234	90	55	49,3	cyclictest	1608954	-21	cut	20:10:13	2
1557209	90	55	50,3	cyclictest	1677357	-21	cpuspeed_turbos	21:35:07	0
1557209	90	55	48,4	cyclictest	1636188	-21	grep	20:45:06	0
1557234	90	54	46,5	cyclictest	1697098	-21	cpuspeed_turbos	22:00:04	2
1557234	90	53	48,3	cyclictest	1688927	-21	sed	21:50:04	2
1557234	90	53	48,3	cyclictest	1688927	-21	sed	21:50:03	2
1557234	90	53	47,3	cyclictest	1827959	-21	grep	00:40:03	2
1557234	90	53	1,49	cyclictest	1782113	-21	unixbench_singl	23:40:21	2
1557209	90	53	48,3	cyclictest	1631231	-21	cut	20:40:02	0
1557209	90	53	47,4	cyclictest	1768246	-21	tail	23:25:11	0
1557209	90	53	47,3	cyclictest	1814919	-21	unixbench_singl	00:20:19	0
1784464	2	52	0,1	sleep0	0	-21	swapper/0	23:45:09	0
1557234	90	52	46,3	cyclictest	1807336	-21	grep	00:15:02	2
1557234	90	52	46,3	cyclictest	1807336	-21	grep	00:15:01	2
1557234	90	52	44,5	cyclictest	1562768	-21	cpuspeed_turbos	19:15:09	2
1557234	90	52	44,5	cyclictest	1562768	-21	cpuspeed_turbos	19:15:08	2
1557234	90	52	43,5	cyclictest	1752694	-21	timerwakeupswit	23:05:15	2
1557209	90	52	46,4	cyclictest	1583859	-21	ls	19:40:13	0
1732323	2	51	0,2	sleep1	0	-21	swapper/1	22:40:15	1
1557234	90	51	46,3	cyclictest	1775752	-21	grep	23:35:08	2
1557234	90	51	46,3	cyclictest	1775752	-21	grep	23:35:07	2
1557234	90	51	46,3	cyclictest	1655730	-21	grep	21:10:02	2
1557234	90	51	46,3	cyclictest	1603967	-21	tune2fs	20:05:09	2
1557234	90	51	45,4	cyclictest	1756030	-21	grep	23:10:11	2
1557234	90	51	43,5	cyclictest	1821790	-21	ls	00:30:11	2
1557234	90	51	3,43	cyclictest	1668563	-21	cstates	21:25:04	2
1557234	90	51	32,17	cyclictest	1730716	-21	ls	22:40:08	2
1557234	90	50	45,3	cyclictest	1796770	-21	uniq	00:00:10	2
1557234	90	50	44,3	cyclictest	1635199	-21	latency_hist	20:45:01	2
1557234	90	50	4,42	cyclictest	1643955	-21	cstates	20:55:04	2
1557234	90	50	43,4	cyclictest	1638549	-21	sed	20:45:19	2
1557209	90	50	45,3	cyclictest	1622139	-21	grep	20:25:19	0
1557209	90	50	45,3	cyclictest	1611835	-21	fschecks_time	20:15:08	0
1557209	90	50	0,47	cyclictest	1761606	-21	unixbench_singl	23:15:20	0
1557209	90	50	0,47	cyclictest	1705028	-21	head	22:10:02	0
1557209	90	50	0,47	cyclictest	1651402	-21	cstates	21:05:01	0
1557234	90	49	44,3	cyclictest	1623970	-21	unixbench_multi	20:30:06	2
1557234	90	49	4,41	cyclictest	1680332	-21	gltestperf	21:40:01	2
1557234	90	49	43,3	cyclictest	1688409	-21	wc	21:50:01	2
1557234	90	49	42,4	cyclictest	1660875	-21	cpuspeed_turbos	21:15:08	2
1557234	90	49	1,45	cyclictest	1583148	-21	uniq	19:40:09	2
1557209	90	49	44,3	cyclictest	1561584	-21	gltestperf	19:15:03	0
1557209	90	49	44,3	cyclictest	1561584	-21	gltestperf	19:15:02	0
1557234	90	48	44,2	cyclictest	1783116	-21	/usr/sbin/munin	23:45:06	2
1557234	90	48	42,3	cyclictest	1773091	-21	sort	23:30:13	2
1557234	90	48	42,3	cyclictest	1734321	-21	ls	22:45:04	2
1557234	90	48	42,3	cyclictest	1592035	-21	find	19:50:10	2
1557234	90	48	41,4	cyclictest	1718472	-21	cpuspeed_turbos	22:25:09	2
1557234	90	48	41,4	cyclictest	1718472	-21	cpuspeed_turbos	22:25:08	2
1557209	90	48	43,3	cyclictest	1763889	-21	cut	23:20:10	0
1557209	90	48	43,3	cyclictest	1722946	-21	sort	22:30:11	0
1557209	90	48	42,4	cyclictest	1735477	-21	ls	22:45:11	0
1557209	90	48	42,3	cyclictest	1791644	-21	ls	23:55:05	0
1557209	90	48	42,3	cyclictest	1709842	-21	grep	22:15:05	0
1557209	90	48	2,43	cyclictest	1674981	-21	cut	21:30:17	0
1557209	90	48	2,43	cyclictest	1674981	-21	cut	21:30:16	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2019-11-10 - 10:20