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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 Tue Sep 28, 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
2240	2	261	182,34	sleep0	0	-21	swapper/0	19:05:53	0
2335	2	255	206,35	sleep1	0	-21	swapper/1	19:06:31	1
9772	2	165	0,3	sleep0	3088	99	cyclictest	20:35:28	0
4868	2	96	0,4	sleep0	3088	99	cyclictest	00:05:27	0
13135	2	39	0,2	sleep0	3088	99	cyclictest	20:45:15	0
3089	99	27	2,5	cyclictest	8021	-21	apt-get	19:20:15	1
3089	99	27	1,20	cyclictest	9858	-21	apt-get	23:05:17	1
3088	99	27	12,9	cyclictest	15148	-21	apt-get	20:50:15	0
3089	99	26	16,6	cyclictest	17936	-21	apt-get	22:10:15	1
3089	99	26	1,12	cyclictest	10465	-21	apt-get	00:20:14	1
3089	99	26	11,10	cyclictest	14798	-21	apt-get	00:30:12	1
3088	99	25	2,15	cyclictest	32245	-40	apt-check	20:15:11	0
3089	99	24	3,15	cyclictest	21089	-21	apt-get	23:30:16	1
3089	99	24	2,15	cyclictest	14551	-21	apt-esm-hook	19:35:17	1
3089	99	24	2,14	cyclictest	1761	-21	apt-get	00:00:17	1
3089	99	24	17,4	cyclictest	30753	-21	apt-get	21:25:17	1
3089	99	24	15,7	cyclictest	3179	-21	cat	21:35:19	1
3088	99	24	3,15	cyclictest	14535	-21	apt-get	19:35:18	0
3088	99	24	2,16	cyclictest	20104	-21	apt-get	22:15:16	0
3088	99	24	2,15	cyclictest	30200	-21	apt-get	21:25:15	0
3089	99	23	3,14	cyclictest	24478	-21	apt-esm-hook	22:25:14	1
3089	99	23	2,15	cyclictest	28213	-21	apt-get	21:20:15	1
3089	99	23	2,15	cyclictest	14558	-21	apt-get	23:15:17	1
3089	99	23	1,19	cyclictest	7653	-40	apt-check	23:00:14	1
3088	99	23	1,15	cyclictest	24462	-21	apt-get	22:25:13	0
3089	99	22	7,9	cyclictest	9234	-21	apt-get	21:50:15	1
3089	99	22	4,2	cyclictest	11	1	rcu_preempt	00:12:12	1
3089	99	22	2,14	cyclictest	29789	-21	apt-get	23:50:17	1
3089	99	22	2,14	cyclictest	23249	-21	apt-esm-hook	19:55:16	1
3089	99	22	2,14	cyclictest	21702	-21	apt-esm-hook	21:05:18	1
3089	99	22	2,14	cyclictest	13595	-21	apt-get	22:00:15	1
3089	99	22	2,13	cyclictest	29786	-21	apt-esm-hook	20:10:18	1
3089	99	22	2,13	cyclictest	21085	-21	apt-esm-hook	19:50:16	1
3089	99	22	2,13	cyclictest	16739	-21	apt-esm-hook	19:40:18	1
3089	99	22	2,13	cyclictest	12634	-21	apt-get	00:25:13	1
3089	99	22	14,6	cyclictest	3429	-21	cat	22:50:19	1
3089	99	22	1,14	cyclictest	11410	-21	apt-get	21:55:19	1
3089	99	22	0,19	cyclictest	32245	-40	apt-check	20:15:08	1
3088	99	22	2,15	cyclictest	10188	-21	apt-get	19:25:13	0
3088	99	22	2,14	cyclictest	9874	-21	apt-esm-hook	23:05:17	0
3088	99	22	2,14	cyclictest	7681	-21	apt-get	23:00:16	0
3088	99	22	2,14	cyclictest	2977	-21	apt-esm-hook	22:50:15	0
3088	99	22	2,14	cyclictest	21686	-21	apt-get	21:05:18	0
3088	99	22	2,13	cyclictest	4283	-21	apt-get	20:25:16	0
3088	99	22	1,14	cyclictest	12650	-21	apt-esm-hook	00:25:14	0
3089	99	21	6,10	cyclictest	26637	-21	apt-get	22:30:16	1
3089	99	21	2,14	cyclictest	12993	-21	apt-esm-hook	20:45:13	1
3089	99	21	2,13	cyclictest	745	-21	apt-get	22:45:18	1
3089	99	21	2,13	cyclictest	6474	-21	apt-esm-hook	20:30:18	1
3089	99	21	2,13	cyclictest	6474	-21	apt-esm-hook	20:30:18	1
3089	99	21	2,13	cyclictest	3673	-21	apt-esm-hook	19:10:15	1
3089	99	21	2,13	cyclictest	26044	-21	apt-esm-hook	21:15:18	1
3089	99	21	2,13	cyclictest	18911	-21	apt-esm-hook	19:45:17	1
3089	99	21	2,13	cyclictest	12033	-21	apt-get	23:10:19	1
3089	99	21	1,15	cyclictest	31961	-21	apt-get	23:55:18	1
3089	99	21	1,14	cyclictest	5138	-21	apt-get	22:55:17	1
3089	99	21	1,14	cyclictest	5138	-21	apt-get	22:55:16	1
3089	99	21	1,13	cyclictest	10830	-21	apt-esm-hook	20:40:17	1
3089	99	21	1,12	cyclictest	17339	-21	apt-esm-hook	20:55:17	1
3089	99	21	0,18	cyclictest	5008	-21	ntpq	20:25:24	1
3088	99	21	6,10	cyclictest	2110	-21	apt-get	20:20:18	0
3088	99	21	3,16	cyclictest	29749	-21	runrttasks	21:22:14	0
3088	99	21	2,4	cyclictest	29798	-21	apt-esm-json-ho	20:10:18	0
3088	99	21	2,13	cyclictest	769	-21	apt-esm-hook	22:45:18	0
3088	99	21	2,13	cyclictest	7073	-21	apt-esm-hook	21:45:14	0
3088	99	21	2,13	cyclictest	27597	-21	apt-get	20:05:17	0
3088	99	21	2,13	cyclictest	26028	-21	apt-get	21:15:18	0
3088	99	21	2,13	cyclictest	25469	-21	apt-esm-hook	23:40:18	0
3088	99	21	2,13	cyclictest	23233	-21	apt-get	19:55:17	0
3088	99	21	2,13	cyclictest	16723	-21	apt-get	19:40:17	0
3088	99	21	2,13	cyclictest	15784	-21	apt-esm-hook	22:05:17	0
3088	99	21	2,13	cyclictest	13611	-21	apt-esm-hook	22:00:14	0
3088	99	21	2,13	cyclictest	12365	-21	apt-get	19:30:18	0
3088	99	21	2,13	cyclictest	10814	-21	apt-get	20:40:16	0
3088	99	21	1,13	cyclictest	23858	-21	apt-get	21:10:18	0
3089	99	20	5,9	cyclictest	27621	-21	apt-get	23:45:19	1
3089	99	20	5,10	cyclictest	22299	-21	apt-get	22:20:16	1
3089	99	20	3,5	cyclictest	4895	-21	apt-get	21:40:15	1
3089	99	20	2,7	cyclictest	18918	-21	apt-get	23:25:16	1
3089	99	20	2,2	cyclictest	11	1	rcu_preempt	19:31:49	1
3089	99	20	2,16	cyclictest	17230	-21	cat	20:55:00	1
3089	99	20	2,13	cyclictest	5849	-21	apt-esm-hook	19:15:18	1
3089	99	20	2,13	cyclictest	453	-21	apt-get	21:30:14	1
3089	99	20	2,13	cyclictest	25452	-21	apt-get	23:40:19	1
3089	99	20	2,13	cyclictest	23275	-21	apt-esm-hook	23:35:16	1
3089	99	20	2,13	cyclictest	20120	-21	apt-esm-hook	22:15:16	1
3089	99	20	2,12	cyclictest	8284	-21	apt-get	00:15:18	1
3089	99	20	2,12	cyclictest	3945	-21	apt-get	00:05:18	1
3089	99	20	2,12	cyclictest	28813	-21	apt-get	22:35:17	1
3089	99	20	1,14	cyclictest	31006	-21	apt-get	22:40:18	1
3089	99	20	1,13	cyclictest	16756	-21	apt-get	23:20:21	1
3089	99	20	0,3	cyclictest	18993	-21	lsb_release	00:40:00	1
3089	99	20	0,18	cyclictest	4108	-21	basename	20:25:00	1
3088	99	20	4,2	cyclictest	11	1	rcu_preempt	22:00:01	0
3088	99	20	3,3	cyclictest	11	1	rcu_preempt	21:00:16	0
3088	99	20	2,6	cyclictest	9	-21	ksoftirqd/0	19:21:05	0
3088	99	20	2,13	cyclictest	8300	-21	apt-esm-hook	00:15:18	0
3088	99	20	2,13	cyclictest	3657	-21	apt-get	19:10:15	0
3088	99	20	2,13	cyclictest	2711	-21	apt-esm-hook	21:35:14	0
3088	99	20	2,13	cyclictest	26653	-21	apt-esm-hook	22:30:16	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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