OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #7, slot #8

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.

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 highest latencies:

System rack7slot8.osadl.org (updated Wed Mar 04, 2026 13:44:18)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
20401	2	1255	0,15	sleep0	19252	-21	apt-get	07:05:53	0
20966	99	144	68,25	cyclictest	19114	-21	diskstats	09:10:23	0
20966	99	143	55,35	cyclictest	4196	-21	apt-get	10:20:59	0
20966	99	139	68,53	cyclictest	1305	-21	snmpd	08:21:51	0
20966	99	139	64,36	cyclictest	2081	-21	users	08:00:47	0
20966	99	137	63,53	cyclictest	9651	-21	sshd	08:31:32	0
20966	99	136	60,38	cyclictest	3100	-21	ntp_states	08:05:39	0
20966	99	136	60,21	cyclictest	22867	-21	diskstats	07:15:21	0
20966	99	135	63,20	cyclictest	29219	-21	memory	07:40:31	0
20966	99	134	58,36	cyclictest	12558	-21	ntp_states	10:50:39	0
20966	99	133	74,39	cyclictest	28255	-21	chrt	07:35:44	0
20966	99	133	68,24	cyclictest	374	-21	seq	07:55:23	0
20966	99	133	63,36	cyclictest	5581	-21	ntp_states	08:15:39	0
20966	99	132	60,33	cyclictest	11163	-21	fw_forwarded_lo	10:45:24	0
20966	99	132	59,37	cyclictest	754	-21	systemd-journal	09:55:33	0
20966	99	131	67,22	cyclictest	8622	-21	sshd	10:35:17	0
20966	99	131	52,58	cyclictest	21301	-21	apt-get	09:18:24	0
20966	99	130	72,19	cyclictest	14563	-21	chrt	08:50:57	0
20966	99	130	70,41	cyclictest	1305	-21	snmpd	11:27:33	0
20966	99	130	60,33	cyclictest	19056	-21	fw_forwarded_lo	11:15:46	0
20966	99	130	56,35	cyclictest	3664	-21	users	10:15:49	0
20966	99	129	66,42	cyclictest	29861	-21	cron	12:00:01	0
20966	99	129	59,51	cyclictest	22109	-21	sshd	07:11:32	0
20966	99	129	58,40	cyclictest	6136	-21	df	10:25:15	0
20966	99	129	55,38	cyclictest	14694	-21	wget	11:00:11	0
20966	99	129	50,41	cyclictest	18059	-21	ntp_states	09:05:42	0
20966	99	128	64,44	cyclictest	1408	-21	nginx	09:38:29	0
20966	99	128	63,23	cyclictest	24303	-21	sshd	09:30:12	0
20966	99	128	60,34	cyclictest	1305	-21	snmpd	11:07:27	0
20966	99	128	58,35	cyclictest	942	-21	ntp_states	10:05:39	0
20966	99	128	57,33	cyclictest	32526	-21	wget	12:10:09	0
20966	99	127	58,50	cyclictest	3839	-21	wget	12:25:10	0
20966	99	127	56,35	cyclictest	5244	-21	df_inode	12:30:15	0
20966	99	127	54,54	cyclictest	29449	-21	df_inode	09:50:18	0
20966	99	127	54,33	cyclictest	1924	-21	wget	10:10:15	0
20966	99	126	67,20	cyclictest	22756	-21	fw_forwarded_lo	11:30:26	0
20966	99	126	63,49	cyclictest	15550	-21	ntp_states	08:55:39	0
20966	99	126	55,18	cyclictest	2787	-21	diskstats	12:20:23	0
20966	99	125	75,40	cyclictest	1305	-21	snmpd	07:34:32	0
20966	99	125	64,20	cyclictest	28217	-21	diskstats	09:45:20	0
20966	99	125	55,34	cyclictest	17535	-21	ntp_states	11:10:38	0
20966	99	125	54,17	cyclictest	1608	-21	ntpd	09:20:44	0
20966	99	125	49,39	cyclictest	30036	-21	chrt	12:00:09	0
20966	99	124	65,39	cyclictest	30172	-21	aten_r7power_cu	07:45:10	0
20966	99	124	56,33	cyclictest	31865	-21	wget	10:00:14	0
20966	99	124	56,32	cyclictest	1305	-21	snmpd	11:52:39	0
20966	99	124	51,54	cyclictest	24067	-21	cut	11:35:30	0
20966	99	123	66,45	cyclictest	17531	-21	sshd	09:04:58	0
20966	99	123	55,48	cyclictest	8806	-21	sshd	08:29:52	0
20966	99	123	52,52	cyclictest	1305	-21	snmpd	12:06:33	0
20966	99	122	76,35	cyclictest	26065	-21	seq	11:44:25	0
20966	99	122	63,38	cyclictest	24224	-21	cat	09:30:03	0
20966	99	122	62,43	cyclictest	20440	-21	ntp_states	11:20:42	0
20966	99	122	62,20	cyclictest	10377	-21	df_inode	08:35:17	0
20966	99	121	68,40	cyclictest	6604	-21	irqstats	12:35:38	0
20966	99	121	53,29	cyclictest	754	-21	systemd-journal	10:56:33	0
20966	99	121	52,32	cyclictest	13080	-21	ntp_states	08:45:42	0
20966	99	120	67,40	cyclictest	26498	-21	chrt	11:45:26	0
20966	99	120	60,41	cyclictest	754	-21	systemd-journal	10:40:18	0
20966	99	120	60,39	cyclictest	1276	-21	runrttasks	07:20:07	0
20966	99	119	77,33	cyclictest	5081	-21	latency_hist	08:15:01	0
20966	99	119	71,36	cyclictest	1305	-21	snmpd	07:25:21	0
20966	99	119	66,41	cyclictest	8319	-21	grep	10:35:02	0
20966	99	119	66,36	cyclictest	31459	-21	aten_r7power_po	07:50:12	0
20966	99	119	65,42	cyclictest	26979	-21	df_inode	09:40:21	0
20966	99	118	43,36	cyclictest	2073	-21	apt-get	12:17:09	0
20966	99	117	52,34	cyclictest	12068	-21	awk	08:40:49	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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