OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #a, slot #6

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
Compare latency of primary with shadow system

Characteristics of the 100 highest latencies:

System rackaslot6.osadl.org (updated Wed Aug 05, 2026 12:45:06)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
320112	99	43	1,17	cyclictest	0	-21	swapper/1		1
320111	99	35	2,19	cyclictest	0	-21	swapper/0		0
320111	99	34	3,19	cyclictest	368098	-21	fschecks_time		0
320112	99	33	1,19	cyclictest	0	-21	swapper/1		1
320112	99	33	1,16	cyclictest	0	-21	swapper/1		1
320111	99	33	13,8	cyclictest	0	-21	swapper/0		0
320112	99	32	1,6	cyclictest	232	50	irq/135-46000000.ethernet-rx0		1
320112	99	32	1,16	cyclictest	0	-21	swapper/1		1
320111	99	32	17,3	cyclictest	345482	-21	fschecks_count		0
320112	99	31	14,4	cyclictest	356329	-21	apt-get		1
320112	99	31	1,17	cyclictest	0	-21	swapper/1		1
320111	99	31	17,4	cyclictest	349749	-21	kworker/u32:6+rpciod		0
320111	99	31	15,2	cyclictest	0	-21	swapper/0		0
320111	99	31	1,18	cyclictest	0	-21	swapper/0		0
320116	99	30	14,5	cyclictest	226	50	irq/128-46000000.ethernet-tx2		5
320115	99	30	17,2	cyclictest	226	50	irq/128-46000000.ethernet-tx2		4
320111	99	30	1,23	cyclictest	0	-21	swapper/0		0
320111	99	30	1,23	cyclictest	0	-21	swapper/0		0
320117	99	29	22,4	cyclictest	327217	-21	cat		6
320117	99	29	22,4	cyclictest	327217	-21	cat		6
320116	99	29	3,22	cyclictest	385943	-21	apt-get		5
320116	99	29	19,3	cyclictest	226	50	irq/128-46000000.ethernet-tx2		5
320112	99	29	16,1	cyclictest	0	-21	swapper/1		1
320112	99	29	14,2	cyclictest	0	-21	swapper/1		1
320112	99	29	1,18	cyclictest	1928	-21	snmpd		1
320112	99	29	1,17	cyclictest	0	-21	swapper/1		1
320111	99	29	5,20	cyclictest	335397	-21	acpi		0
320111	99	29	16,3	cyclictest	0	-21	swapper/0		0
320111	99	29	1,16	cyclictest	0	-21	swapper/0		0
320116	99	28	25,2	cyclictest	376316	-21	fschecks_count		5
320113	99	28	15,6	cyclictest	0	-21	swapper/2		2
320112	99	28	5,2	cyclictest	358615	-21	ntpq		1
320112	99	28	14,2	cyclictest	323023	-21	apt-get		1
320112	99	28	1,18	cyclictest	0	-21	swapper/1		1
320112	99	28	1,17	cyclictest	0	-21	swapper/1		1
320111	99	28	3,16	cyclictest	329514	-21	kworker/u32:0+xprtiod		0
320111	99	28	15,2	cyclictest	0	-21	swapper/0		0
320111	99	28	0,2	cyclictest	0	-21	swapper/0		0
320111	99	28	0,24	cyclictest	15	1	ktimers/0		0
320118	99	27	2,18	cyclictest	0	-21	swapper/7		7
320115	99	27	21,4	cyclictest	348115	-21	latency_hist		4
320115	99	27	11,7	cyclictest	226	50	irq/128-46000000.ethernet-tx2		4
320115	99	27	11,7	cyclictest	226	50	irq/128-46000000.ethernet-tx2		4
320115	99	27	1,16	cyclictest	0	-21	swapper/4		4
320115	99	27	1,16	cyclictest	0	-21	swapper/4		4
320114	99	27	4,19	cyclictest	0	-21	swapper/3		3
320114	99	27	4,19	cyclictest	0	-21	swapper/3		3
320113	99	27	3,12	cyclictest	0	-21	swapper/2		2
320113	99	27	1,21	cyclictest	322267	-21	kworker/u32:8+xprtiod		2
320112	99	27	1,16	cyclictest	0	-21	swapper/1		1
320111	99	27	2,9	cyclictest	0	-21	swapper/0		0
320111	99	27	17,2	cyclictest	226	50	irq/128-46000000.ethernet-tx2		0
320111	99	27	17,2	cyclictest	226	50	irq/128-46000000.ethernet-tx2		0
320111	99	27	1,22	cyclictest	337597	-21	ntpq		0
320111	99	27	1,16	cyclictest	0	-21	swapper/0		0
320111	99	27	1,14	cyclictest	0	-21	swapper/0		0
320118	99	26	22,3	cyclictest	75	1	ktimers/7		7
320118	99	26	22,3	cyclictest	75	1	ktimers/7		7
320118	99	26	18,5	cyclictest	354672	-21	/usr/sbin/munin		7
320117	99	26	22,2	cyclictest	344026	-21	gltestperf		6
320117	99	26	13,10	cyclictest	323023	-21	apt-get		6
320116	99	26	2,16	cyclictest	0	-21	swapper/5		5
320115	99	26	7,3	cyclictest	0	-21	swapper/4		4
320115	99	26	19,4	cyclictest	385762	-21	latency_hist		4
320115	99	26	1,3	cyclictest	0	-21	swapper/4		4
320114	99	26	22,2	cyclictest	332719	-21	/usr/sbin/munin		3
320114	99	26	2,20	cyclictest	343972	-21	head		3
320113	99	26	1,20	cyclictest	0	-21	swapper/2		2
320113	99	26	1,10	cyclictest	0	-21	swapper/2		2
320113	99	26	1,10	cyclictest	0	-21	swapper/2		2
320112	99	26	15,2	cyclictest	361189	-21	acpi		1
320111	99	26	1,20	cyclictest	0	-21	swapper/0		0
320111	99	26	1,16	cyclictest	0	-21	swapper/0		0
320111	99	26	1,16	cyclictest	0	-21	swapper/0		0
320118	99	25	3,19	cyclictest	75	1	ktimers/7		7
320118	99	25	2,18	cyclictest	232	50	irq/135-46000000.ethernet-rx0		7
320118	99	25	2,16	cyclictest	226	50	irq/128-46000000.ethernet-tx2		7
320118	99	25	2,14	cyclictest	0	-21	swapper/7		7
320118	99	25	2,14	cyclictest	0	-21	swapper/7		7
320118	99	25	1,4	cyclictest	0	-21	swapper/7		7
320118	99	25	1,20	cyclictest	0	-21	swapper/7		7
320117	99	25	19,4	cyclictest	339019	-21	gltestperf		6
320117	99	25	1,5	cyclictest	0	-21	swapper/6		6
320117	99	25	1,5	cyclictest	0	-21	swapper/6		6
320116	99	25	20,3	cyclictest	375540	-21	grep		5
320116	99	25	20,3	cyclictest	375540	-21	grep		5
320116	99	25	1,18	cyclictest	3366768	-21	kworker/5:1+events		5
320115	99	25	1,21	cyclictest	0	-21	swapper/4		4
320115	99	25	1,12	cyclictest	0	-21	swapper/4		4
320114	99	25	21,2	cyclictest	376699	-21	/usr/sbin/munin		3
320114	99	25	1,19	cyclictest	226	50	irq/128-46000000.ethernet-tx2		3
320114	99	25	1,15	cyclictest	0	-21	swapper/3		3
320114	99	25	1,15	cyclictest	0	-21	swapper/3		3
320113	99	25	19,3	cyclictest	322631	-21	latency_hist		2
320113	99	25	19,3	cyclictest	322631	-21	latency_hist		2
320113	99	25	18,4	cyclictest	385975	-21	aten_rapower_cu		2
320113	99	25	16,3	cyclictest	232	50	irq/135-46000000.ethernet-rx0		2
320113	99	25	1,20	cyclictest	333619	-21	sed		2
320112	99	25	17,2	cyclictest	375635	-21	latency_hist		1
320112	99	25	17,2	cyclictest	375635	-21	latency_hist		1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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