Re: zLinux CPU monitoring

2015-10-01 Thread Mikael Wargh
munity support. -Mikael -Original Message- From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Agblad Tore Sent: 1. lokakuuta 2015 11:58 To: LINUX-390@VM.MARIST.EDU Subject: Re: zLinux CPU monitoring Hi, yes you will need figures from z/VM. And do some work yourself as a

Re: zLinux CPU monitoring

2015-10-01 Thread Alan Altmark
On Thursday, 10/01/2015 at 01:37 EDT, Mikael Wargh wrote: > Maybe all this could be done in z/VM, but personally I'm not very fond of > writing REXX execs there... You don't have to write them there, Mikael. You just have to *run* them there. :-) Alan Altmark Senior

Re: zLinux CPU monitoring

2015-10-01 Thread Agblad Tore
ject: Re: zLinux CPU monitoring This was good information, many thanks Tomas! As we're going more open with LinuxOne, KVM and probably more to come, I really think that at least the basic monitoring should have several options to choose from. In traditional x86 Linux world the performance monito

Re: zLinux CPU monitoring

2015-09-30 Thread Norman.Hollander
on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Mark Post Sent: Wednesday, September 30, 2015 8:23 AM To: LINUX-390@VM.MARIST.EDU Subject: Re: zLinux CPU monitoring >>> On 9/30/2015 at 04:45 AM, Mikael Wargh <mikael.wa...@tieto.com> wrote: > Hello, > This is probabl

zLinux CPU monitoring

2015-09-30 Thread Mikael Wargh
Hello, This is probably an old already well digested topic, but is there any reliable way to monitor CPU usage on Linux level? Linux tools like TOP and SAR seems to show z/VM's cap as a maximum in their statistics eg. share is set to 4% per IFL --> 2xIFL is 8%. This is ok from providers point

Re: zLinux CPU monitoring

2015-09-30 Thread Barton Robinson
There is a GSE conference for Linux, z/VM and z/VSE in Stuttgart Germany in 3 weeks. That same week, there is a performance class that will show how to get exactly what you want using zVPS "http://velocitysoftware.com/zvps.html;. If you care about performance of Linux under z/VM, you need the

Re: zLinux CPU monitoring

2015-09-30 Thread Veencamp, Jonathon D.
@VM.MARIST.EDU Subject: zLinux CPU monitoring Hello, This is probably an old already well digested topic, but is there any reliable way to monitor CPU usage on Linux level? Linux tools like TOP and SAR seems to show z/VM's cap as a maximum in their statistics eg. share is set to 4% per IFL --> 2xIFL i

Re: zLinux CPU monitoring

2015-09-30 Thread Pavelka, Tomas
I was once researching something similar (i.e. how to get reliable CPU readings from within Linux) but unfortunately never finished. But I still have the links, maybe you will find something interesting there: Presentation about how Linux kernel can get accurate CPU readings from the

Re: zLinux CPU monitoring

2015-09-30 Thread Mikael Wargh
of writing REXX execs there... -Mikael -Original Message- From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Pavelka, Tomas Sent: 30. syyskuuta 2015 14:49 To: LINUX-390@VM.MARIST.EDU Subject: Re: zLinux CPU monitoring I was once researching something similar (i.e. how

Re: zLinux CPU monitoring

2015-09-30 Thread Mark Post
>>> On 9/30/2015 at 04:45 AM, Mikael Wargh wrote: > Hello, > This is probably an old already well digested topic, but is there any > reliable way to monitor CPU usage on Linux level? As of today, and probably for a very long time to come, there is nothing native to