OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #6, slot #4

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.
Unexpectedly long latencies may be caused by a total of 3616 SMIs that occured during the measurement.
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 rack6slot4.osadl.org (updated Mon Mar 23, 2026 01:16:18)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
"interval":	200,		6448
"cycles":	100000000,		6447
"load":	"idle",		6446
"condition":	{		6445
"clock":	"1100"		6443
"family":	"x86",		6442
"vendor":	"Intel",		6441
"processor":	{		6439
"dataset":	"2024-01-08T03:36:49+01:00"		6437
"origin":	"2024-01-08T00:43:22+01:00",		6436
"timestamps":	{		6435
"granularity":	"microseconds"		6433
"maxima":	[		6429
"cores":	[		5221
"latency":	{		5220
"hostname":	"rack6slot4.osadl.org"		5218
"system":	{		5217
"version":	"1.0",		5214
"format":	{		5213
"patches":	[		5204
26733	99	382	369,7	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	369	356,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26732	99	366	357,5	cyclictest	0	-21	swapper/0		0
26733	99	361	350,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	360	349,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	360	342,9	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	356	345,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	356	344,7	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	356	343,8	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	355	329,17	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	354	343,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	354	341,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26732	99	354	345,5	cyclictest	0	-21	swapper/0		0
26733	99	353	342,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	353	342,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	353	341,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26732	99	353	339,8	cyclictest	4282	-21	ts2lt		0
26733	99	352	341,5	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	351	341,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	351	340,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	349	338,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	349	338,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	349	337,7	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	348	336,7	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	348	336,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26732	99	348	334,8	cyclictest	8141	-21	gltestperf		0
26733	99	347	336,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	347	335,7	cyclictest	13497	-21	kworker/1:0+kec_query		1
26732	99	347	333,9	cyclictest	12076	-21	gltestperf		0
26733	99	346	331,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26732	99	346	337,5	cyclictest	0	-21	swapper/0		0
26732	99	346	333,7	cyclictest	9200	-21	taskset		0
26733	99	345	335,5	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	344	333,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	344	333,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	344	332,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	343	333,5	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	343	332,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	343	331,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	343	331,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	343	331,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	343	331,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26732	99	343	334,5	cyclictest	0	-21	swapper/0		0
26732	99	343	325,12	cyclictest	9913	-21	sh		0
26733	99	342	331,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	342	331,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	342	330,7	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	342	330,7	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	342	330,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26732	99	342	328,8	cyclictest	26625	-21	/usr/sbin/munin		0
26733	99	341	332,5	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	341	330,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	341	329,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	341	328,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	341	327,8	cyclictest	13497	-21	kworker/1:0+kec_query		1
26732	99	341	322,13	cyclictest	28570	-21	apt		0
26733	99	340	327,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26732	99	340	331,5	cyclictest	0	-21	swapper/0		0
26732	99	340	331,5	cyclictest	0	-21	swapper/0		0
26732	99	340	331,5	cyclictest	0	-21	swapper/0		0
26732	99	340	326,9	cyclictest	17653	-21	dpkg		0
26733	99	339	328,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	339	327,7	cyclictest	13497	-21	kworker/1:0+kec_query		1
26732	99	339	330,5	cyclictest	0	-21	swapper/0		0
26733	99	338	327,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26732	99	338	329,5	cyclictest	0	-21	swapper/0		0
26732	99	337	328,5	cyclictest	0	-21	swapper/0		0
26732	99	337	325,7	cyclictest	17163	-21	ssh		0
26733	99	336	325,7	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	335	324,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	335	324,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	335	324,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	335	324,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	335	323,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26733	99	335	322,8	cyclictest	13497	-21	kworker/1:0+kec_query		1
26732	99	335	326,5	cyclictest	0	-21	swapper/0		0
26732	99	335	326,5	cyclictest	0	-21	swapper/0		0
26732	99	335	326,5	cyclictest	0	-21	swapper/0		0
26733	99	334	323,6	cyclictest	13497	-21	kworker/1:0+kec_query		1
26732	99	334	325,5	cyclictest	0	-21	swapper/0		0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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