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 3618 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 01, 2026 13:16:15)
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
30228	99	384	371,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	377	364,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	363	351,7	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	363	351,7	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	362	350,7	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	360	348,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	360	347,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	360	334,17	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	359	348,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30223	99	359	350,5	cyclictest	0	-21	swapper/0		0
30228	99	358	347,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	358	346,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	357	346,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	355	343,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	355	343,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30223	99	354	345,5	cyclictest	0	-21	swapper/0		0
30228	99	353	342,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	352	341,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	351	340,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	351	339,7	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	350	339,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	350	339,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	350	338,7	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	349	337,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	349	337,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	347	336,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	347	336,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	347	334,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30223	99	347	340,4	cyclictest	0	-21	swapper/0		0
30228	99	346	333,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	346	322,19	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	346	320,17	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	345	333,7	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	345	333,7	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	345	333,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	344	333,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	344	333,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	344	332,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	344	331,7	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	343	332,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	343	332,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	343	332,5	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	343	331,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	343	330,8	cyclictest	24828	-21	kworker/1:0+kec_query		1
30223	99	342	333,5	cyclictest	0	-21	swapper/0		0
30223	99	342	330,7	cyclictest	5956	-21	ssh		0
30228	99	341	331,5	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	341	329,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	341	328,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30223	99	341	332,5	cyclictest	0	-21	swapper/0		0
30228	99	340	329,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	340	329,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	340	328,7	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	340	328,7	cyclictest	24828	-21	kworker/1:0+kec_query		1
30223	99	340	331,5	cyclictest	0	-21	swapper/0		0
30228	99	338	326,7	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	337	331,3	cyclictest	52	50	irq/9-acpi		1
30228	99	337	326,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	337	325,7	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	337	325,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30223	99	337	328,5	cyclictest	0	-21	swapper/0		0
30223	99	337	328,5	cyclictest	0	-21	swapper/0		0
30228	99	336	325,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	336	324,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30223	99	336	327,5	cyclictest	0	-21	swapper/0		0
30223	99	336	327,5	cyclictest	0	-21	swapper/0		0
30223	99	336	322,9	cyclictest	7589	-21	taskset		0
30223	99	335	326,5	cyclictest	0	-21	swapper/0		0
30228	99	334	323,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30223	99	334	323,6	cyclictest	9184	-21	kworker/0:2+kec_query		0
30228	99	333	322,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	332	321,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	332	321,6	cyclictest	24828	-21	kworker/1:0+kec_query		1
30223	99	332	323,5	cyclictest	0	-21	swapper/0		0
30223	99	332	323,5	cyclictest	0	-21	swapper/0		0
30228	99	331	319,7	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	331	319,7	cyclictest	24828	-21	kworker/1:0+kec_query		1
30228	99	331	319,7	cyclictest	24828	-21	kworker/1:0+kec_query		1
30223	99	331	322,5	cyclictest	0	-21	swapper/0		0
30228	99	330	318,7	cyclictest	24828	-21	kworker/1:0+kec_query		1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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