OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

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 Sun Mar 15, 2026 13:16:14)
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
16389	99	380	368,7	cyclictest	16890	-21	kworker/1:0+kec_query		1
16389	99	378	367,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16389	99	377	366,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16389	99	374	363,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16389	99	372	361,6	cyclictest	16890	-21	kworker/1:0+kec_query		1
16389	99	368	357,6	cyclictest	16890	-21	kworker/1:0+kec_query		1
16389	99	364	352,7	cyclictest	16890	-21	kworker/1:0+kec_query		1
16389	99	362	351,6	cyclictest	16120	-21	kworker/1:2+kec_query		1
16389	99	362	351,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16389	99	361	350,6	cyclictest	16890	-21	kworker/1:0+kec_query		1
16389	99	361	350,6	cyclictest	16890	-21	kworker/1:0+kec_query		1
16389	99	361	350,6	cyclictest	16120	-21	kworker/1:2+kec_query		1
16389	99	360	349,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16389	99	359	348,6	cyclictest	16890	-21	kworker/1:0+kec_query		1
16389	99	357	346,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16385	99	357	345,7	cyclictest	8004	-21	kworker/0:0+kec_query		0
16385	99	357	1,349	cyclictest	28963	-21	sed		0
16389	99	356	345,6	cyclictest	16120	-21	kworker/1:2+kec_query		1
16389	99	356	344,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16389	99	355	344,6	cyclictest	16120	-21	kworker/1:2+kec_query		1
16389	99	355	344,6	cyclictest	16120	-21	kworker/1:2+kec_query		1
16389	99	355	344,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16389	99	355	334,16	cyclictest	1954	-21	kworker/1:2+kec_query		1
16389	99	354	343,6	cyclictest	16120	-21	kworker/1:2+kec_query		1
16389	99	354	343,6	cyclictest	16120	-21	kworker/1:2+kec_query		1
16385	99	354	340,8	cyclictest	13304	-21	df		0
16389	99	353	342,6	cyclictest	16890	-21	kworker/1:0+kec_query		1
16389	99	353	342,6	cyclictest	16120	-21	kworker/1:2+kec_query		1
16389	99	353	342,6	cyclictest	16120	-21	kworker/1:2+kec_query		1
16389	99	352	341,6	cyclictest	8923	-21	kworker/1:0+kec_query		1
16389	99	352	341,6	cyclictest	16120	-21	kworker/1:2+kec_query		1
16389	99	352	341,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16389	99	351	340,6	cyclictest	16120	-21	kworker/1:2+kec_query		1
16389	99	351	340,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16389	99	350	339,6	cyclictest	8923	-21	kworker/1:0+kec_query		1
16389	99	350	339,6	cyclictest	8923	-21	kworker/1:0+kec_query		1
16389	99	350	339,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16389	99	350	339,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16389	99	350	339,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16389	99	350	339,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16389	99	350	338,7	cyclictest	16120	-21	kworker/1:2+kec_query		1
16385	99	350	1,343	cyclictest	0	-21	swapper/0		0
16389	99	349	339,5	cyclictest	1954	-21	kworker/1:2+kec_query		1
16389	99	349	338,6	cyclictest	8923	-21	kworker/1:0+kec_query		1
16389	99	349	338,6	cyclictest	16890	-21	kworker/1:0+kec_query		1
16389	99	349	338,6	cyclictest	16890	-21	kworker/1:0+kec_query		1
16389	99	349	338,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16389	99	349	338,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16385	99	349	334,10	cyclictest	31581	-21	diskmemload		0
16389	99	348	337,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16389	99	348	337,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16389	99	348	337,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16389	99	348	336,6	cyclictest	16890	-21	kworker/1:0+kec_query		1
16385	99	348	335,7	cyclictest	3490	-21	ssh		0
16389	99	347	336,6	cyclictest	16890	-21	kworker/1:0+kec_query		1
16389	99	347	336,6	cyclictest	16890	-21	kworker/1:0+kec_query		1
16389	99	347	336,6	cyclictest	16120	-21	kworker/1:2+kec_query		1
16389	99	347	335,7	cyclictest	16890	-21	kworker/1:0+kec_query		1
16389	99	346	335,6	cyclictest	8923	-21	kworker/1:0+kec_query		1
16389	99	346	335,6	cyclictest	8923	-21	kworker/1:0+kec_query		1
16389	99	346	335,6	cyclictest	1954	-21	kworker/1:2+kec_query		1
16389	99	346	334,7	cyclictest	12506	-21	kworker/1:0+kec_query		1
16385	99	346	337,5	cyclictest	0	-21	swapper/0		0
16385	99	346	334,7	cyclictest	23758	-21	ssh		0
16389	99	345	8,4	cyclictest	52	50	irq/9-acpi		1
16389	99	345	334,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16389	99	345	334,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16389	99	344	333,6	cyclictest	8923	-21	kworker/1:0+kec_query		1
16389	99	344	333,6	cyclictest	16120	-21	kworker/1:2+kec_query		1
16389	99	344	332,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16385	99	344	333,6	cyclictest	9606	-21	kworker/0:1+kec_query		0
16385	99	344	1,3	cyclictest	0	-21	swapper/0		0
16389	99	343	332,6	cyclictest	12506	-21	kworker/1:0+kec_query		1
16385	99	343	336,4	cyclictest	0	-21	swapper/0		0
16385	99	343	331,7	cyclictest	21684	-21	sh		0
16389	99	342	331,6	cyclictest	16890	-21	kworker/1:0+kec_query		1
16389	99	342	330,7	cyclictest	12506	-21	kworker/1:0+kec_query		1
16385	99	342	333,5	cyclictest	0	-21	swapper/0		0
16385	99	342	333,5	cyclictest	0	-21	swapper/0		0
16385	99	342	2,332	cyclictest	15173	-21	diskstats		0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2019-05-28 - 00:17