8222720: Provide extended VMWare/vSphere virtualization related info in the hs_error file on linux/windows x86_64

[Baesken, Matthias]

Ping  - any reviews / opinions ?

Best regards, Matthias



> -----Original Message-----
> From: Baesken, Matthias
> Sent: Dienstag, 30. April 2019 09:23
> To: Robbin Ehn <robbin.ehn at oracle.com>; 'hotspot-dev at openjdk.java.net'
> <hotspot-dev at openjdk.java.net>
> Subject: RE: 8222720: Provide extended VMWare/vSphere virtualization
> related info in the hs_error file on linux/windows x86_64
> 
> Hello  Robbin,  some of the info is  indeed already available on the guest  (e.g.
> processorMHz ).
> Some of the info is  about the host so we do not have it   currently .
> 
> 
> This is what the   vsphere-guest-ha-monitoring-sdk-65-programming-
> guide.pdf    has to say about the metrics info :
> 
> Host - metrics :   "information about the current hypervisor and hardware the
> virtual machine is running on"
> Description about the  different info parts :
> 
> host.cpu.processorMHz – nominal processor speed. Other metrics, such as
> vm.cpu.used below, are normalized to this speed.
>  host.cpu.coresPerPkg – actual cores per socket, not including hyperthreads.
> Useful for determining cache effects and other aspects of socket sharing.
>                                             Information is also available with CPUID instruction.
> Note that vSphere does not implement virtual hyperthreads.
> host.cpu.packages – number of CPU sockets on the host (non-default).
> host.cpu.cores – number of cores on the host across all sockets, not including
> hyperthreads (non-default).
> host.cpu.threads – number of logical CPUs on the host across all sockets,
> including hyperthreads (non-default).
> host.dmi.product – “product” field in the host SMBIOS data (non-default).
> host.dmi.vendor – “vendor” field in the host SMBIOS data (non-default).
> 
> ( so the  host.dmi  product/vendor   info might not be available depending on
> the VMWare configuration )
> 
> 
> Best regards, Matthias
> 
> 
> > -----Original Message-----
> > From: Robbin Ehn <robbin.ehn at oracle.com>
> > Sent: Dienstag, 30. April 2019 09:04
> > To: Baesken, Matthias <matthias.baesken at sap.com>; 'hotspot-
> > dev at openjdk.java.net' <hotspot-dev at openjdk.java.net>
> > Subject: Re: 8222720: Provide extended VMWare/vSphere virtualization
> > related info in the hs_error file on linux/windows x86_64
> >
> > Hi Matthias,
> >
> > If the guest env. we are running in have correct values, what can the host
> > values be used for in a hs_err context?
> >
> > Thanks, Robbin
> >
> > On 2019-04-29 13:02, Baesken, Matthias wrote:
> > > Hello,
> > >     please review the following enhancement to the VMWare/vSphere
> > virtualization related info in the hs_error file on linux/windows x86_64 .
> > >
> > > In case the guest library from VMWare SDK 6.0 (or higher) is present
> > (libvmGuestLib)  or the open-vm-tools guest library is present
> > > (libguestlib), we add the host and  initial and current  resource related
> > metrics information to the hs_err file .
> > > The resource info  (current and first) is taken twice to see diffs over the
> VM
> > runtime.
> > >
> > > Example output for host and resource information :
> > > host:
> > > ------
> > > host.cpu.processorMHz = 2194
> > > host.cpu.coresPerPkg = 10
> > > host.cpu.packages = 4
> > > host.cpu.cores = 40
> > > host.cpu.threads = 80
> > > host.dmi.product = UCSC-C460-M4
> > > host.dmi.vendor = Cisco Systems Inc
> > >
> > > resource:
> > > ----------
> > > vm.cpu.reserved = 0
> > > vm.cpu.limit = -1
> > > vm.cpu.used = 2290006442390
> > > vm.cpu.contention.cpu = 1436489771
> > > vm.cpu.contention.mem = 0
> > > vm.numa.local = 16775168
> > > vm.numa.remote = 0
> > > guest.mem.reserved = 0
> > > guest.mem.limit = 3221225456
> > > guest.mem.mapped = 16775168
> > > guest.mem.consumed = 16699172
> > > guest.mem.swapped = 0
> > > guest.mem.ballooned = 0
> > > guest.mem.swapIn = 0
> > > guest.mem.swapOut = 0
> > > ovhd.mem.swapped = 0
> > > ovhd.mem.swapIn = 0
> > > ovhd.mem.swapOut = 0
> > >
> > >
> > > (details on the metrics meaning can be found in the VMWare SDK
> > programming guide
> > >
> > > https://code.vmware.com/docs/6629/guest-and-ha-application-
> > monitoring-sdk-programming-guide/
> > >
> > > see the subsections of "Tools for Extended Guest Statistics" )
> > >
> > >
> > > bug/webrev :
> > >
> > > https://bugs.openjdk.java.net/browse/JDK-8222720
> > >
> > > http://cr.openjdk.java.net/~mbaesken/webrevs/8222720.1/
> > >
> > >
> > > Thanks, Matthias
> > >