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 Tue Mar 10, 2026 01:16:20)
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
32221	99	384	371,6	cyclictest	29612	-21	kworker/1:0+kec_query		1
32216	99	383	374,5	cyclictest	0	-21	swapper/0		0
32221	99	379	367,7	cyclictest	15963	-21	kworker/1:0+kec_query		1
32221	99	378	367,6	cyclictest	22397	-21	kworker/1:1+kec_query		1
32221	99	375	364,6	cyclictest	22397	-21	kworker/1:1+kec_query		1
32221	99	375	364,6	cyclictest	15963	-21	kworker/1:0+kec_query		1
32221	99	372	361,6	cyclictest	29612	-21	kworker/1:0+kec_query		1
32221	99	372	361,6	cyclictest	15963	-21	kworker/1:0+kec_query		1
32221	99	372	360,6	cyclictest	29612	-21	kworker/1:0+kec_query		1
32221	99	369	358,6	cyclictest	29612	-21	kworker/1:0+kec_query		1
32221	99	369	358,6	cyclictest	22397	-21	kworker/1:1+kec_query		1
32221	99	368	356,7	cyclictest	1556	-21	kworker/1:0+kec_query		1
32221	99	368	356,6	cyclictest	29612	-21	kworker/1:0+kec_query		1
32216	99	368	1,3	cyclictest	0	-21	swapper/0		0
32221	99	366	355,6	cyclictest	22397	-21	kworker/1:1+kec_query		1
32216	99	365	356,5	cyclictest	0	-21	swapper/0		0
32221	99	364	353,6	cyclictest	15963	-21	kworker/1:0+kec_query		1
32221	99	363	351,7	cyclictest	29612	-21	kworker/1:0+kec_query		1
32216	99	363	354,5	cyclictest	0	-21	swapper/0		0
32221	99	362	351,6	cyclictest	22397	-21	kworker/1:1+kec_query		1
32221	99	362	351,5	cyclictest	29612	-21	kworker/1:0+kec_query		1
32221	99	361	350,6	cyclictest	1556	-21	kworker/1:0+kec_query		1
32221	99	360	349,6	cyclictest	8938	-21	kworker/1:2+kec_query		1
32221	99	360	349,6	cyclictest	29612	-21	kworker/1:0+kec_query		1
32221	99	360	348,7	cyclictest	22397	-21	kworker/1:1+kec_query		1
32221	99	359	348,6	cyclictest	29612	-21	kworker/1:0+kec_query		1
32221	99	358	347,6	cyclictest	22397	-21	kworker/1:1+kec_query		1
32216	99	358	1,351	cyclictest	0	-21	swapper/0		0
32216	99	357	1,350	cyclictest	0	-21	swapper/0		0
32216	99	357	1,350	cyclictest	0	-21	swapper/0		0
32216	99	357	1,350	cyclictest	0	-21	swapper/0		0
32221	99	356	343,7	cyclictest	29612	-21	kworker/1:0+kec_query		1
32221	99	354	343,6	cyclictest	2293	-21	kworker/1:1+kec_query		1
32216	99	354	2,344	cyclictest	10404	-21	ssh		0
32221	99	353	342,6	cyclictest	1556	-21	kworker/1:0+kec_query		1
32221	99	353	342,6	cyclictest	1556	-21	kworker/1:0+kec_query		1
32221	99	353	341,7	cyclictest	1556	-21	kworker/1:0+kec_query		1
32216	99	353	342,6	cyclictest	15031	-21	kworker/0:2+kec_query		0
32216	99	353	2,343	cyclictest	1049	-21	df_inode		0
32221	99	352	341,6	cyclictest	29612	-21	kworker/1:0+kec_query		1
32216	99	352	340,7	cyclictest	15031	-21	kworker/0:2+kec_query		0
32216	99	352	1,3	cyclictest	0	-21	swapper/0		0
32216	99	352	1,345	cyclictest	0	-21	swapper/0		0
32221	99	351	340,6	cyclictest	29612	-21	kworker/1:0+kec_query		1
32221	99	351	340,6	cyclictest	22397	-21	kworker/1:1+kec_query		1
32221	99	351	340,6	cyclictest	1556	-21	kworker/1:0+kec_query		1
32221	99	351	339,7	cyclictest	26012	-21	kworker/1:2+kec_query		1
32221	99	351	338,6	cyclictest	1556	-21	kworker/1:0+kec_query		1
32221	99	350	339,6	cyclictest	29612	-21	kworker/1:0+kec_query		1
32221	99	350	339,6	cyclictest	29612	-21	kworker/1:0+kec_query		1
32221	99	350	339,6	cyclictest	15963	-21	kworker/1:0+kec_query		1
32221	99	350	337,8	cyclictest	29612	-21	kworker/1:0+kec_query		1
32216	99	350	1,3	cyclictest	0	-21	swapper/0		0
32221	99	349	339,5	cyclictest	29612	-21	kworker/1:0+kec_query		1
32221	99	349	338,6	cyclictest	15963	-21	kworker/1:0+kec_query		1
32221	99	349	337,7	cyclictest	29612	-21	kworker/1:0+kec_query		1
32221	99	349	337,7	cyclictest	29612	-21	kworker/1:0+kec_query		1
32221	99	349	337,6	cyclictest	29612	-21	kworker/1:0+kec_query		1
32216	99	349	1,341	cyclictest	11560	-21	ssh		0
32221	99	348	337,6	cyclictest	8938	-21	kworker/1:2+kec_query		1
32221	99	348	337,6	cyclictest	29612	-21	kworker/1:0+kec_query		1
32221	99	348	337,6	cyclictest	29612	-21	kworker/1:0+kec_query		1
32221	99	348	337,6	cyclictest	22397	-21	kworker/1:1+kec_query		1
32221	99	348	336,7	cyclictest	8938	-21	kworker/1:2+kec_query		1
32216	99	348	2,339	cyclictest	25438	-21	ntp_states		0
32221	99	347	336,6	cyclictest	29612	-21	kworker/1:0+kec_query		1
32221	99	347	336,6	cyclictest	29612	-21	kworker/1:0+kec_query		1
32221	99	347	336,6	cyclictest	1556	-21	kworker/1:0+kec_query		1
32221	99	347	335,7	cyclictest	29612	-21	kworker/1:0+kec_query		1
32216	99	347	1,340	cyclictest	0	-21	swapper/0		0
32216	99	347	1,340	cyclictest	0	-21	swapper/0		0
32221	99	346	335,6	cyclictest	29612	-21	kworker/1:0+kec_query		1
32221	99	346	335,6	cyclictest	29612	-21	kworker/1:0+kec_query		1
32221	99	346	331,7	cyclictest	29612	-21	kworker/1:0+kec_query		1
32221	99	346	331,7	cyclictest	29612	-21	kworker/1:0+kec_query		1
32216	99	346	337,5	cyclictest	0	-21	swapper/0		0
32216	99	346	334,7	cyclictest	15031	-21	kworker/0:2+kec_query		0
32216	99	346	2,338	cyclictest	0	-21	swapper/0		0
32216	99	346	1,339	cyclictest	0	-21	swapper/0		0
32221	99	345	335,5	cyclictest	22397	-21	kworker/1:1+kec_query		1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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