Richard L. Hamilton wrote:
BTW: Does Solaris/x86 support something like
>> marking certain pages as
non-cacheable (for example in some cases it may
>> be nice to turn caching
off if the traffic caused by cache coherency (or
>> even the plain usage of
cache lines for data which a
> > > BTW: Does Solaris/x86 support something like
> marking certain pages as
> > > non-cacheable (for example in some cases it may
> be nice to turn caching
> > > off if the traffic caused by cache coherency (or
> even the plain usage of
> > > cache lines for data which are only read or
> written
Rafael Vanoni wrote:
> Roland Mainz wrote:
> > Rafael Vanoni wrote:
> >> Roland Mainz wrote:
> >>> Jonathan Chew wrote:
> Rafael Vanoni wrote:
> > [snip]
> >>> BTW: How does the topology code handle DR ?
> >> Take a look at
> >> http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/uts
Roland Mainz wrote:
> Rafael Vanoni wrote:
>> Roland Mainz wrote:
>>> Jonathan Chew wrote:
Rafael Vanoni wrote:
> [snip]
>>> BTW: How does the topology code handle DR ?
>> Take a look at
>> http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/uts/common/os/lgrp.c#522.
>> That's the pl
Rafael Vanoni wrote:
> Roland Mainz wrote:
> > Jonathan Chew wrote:
> >> Rafael Vanoni wrote:
[snip]
> > BTW: How does the topology code handle DR ?
>
> Take a look at
> http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/uts/common/os/lgrp.c#522.
> That's the platform independent portio
Roland Mainz wrote:
> Jonathan Chew wrote:
>> Rafael Vanoni wrote:
>>> Hey everyone
>>>
>>> Is the kernel aware of the status of the interconnect between different
>>> NUMA nodes ?
>> No, not currently. It just assumes that there is some interconnect
>> between the nodes and may know the latency b
Jonathan Chew wrote:
> Rafael Vanoni wrote:
> > Hey everyone
> >
> > Is the kernel aware of the status of the interconnect between different
> > NUMA nodes ?
>
> No, not currently. It just assumes that there is some interconnect
> between the nodes and may know the latency between them when the s
The Open MPI project has a framework called carto, which is used to
represent the physical topology of a host:
http://www.open-mpi.org/community/lists/devel/2008/01/2972.php
See the OnHostTopologyDescription page, and also the attachment:
https://svn.open-mpi.org/trac/ompi/wiki/OnHostTopologyDe
Rayson Ho wrote:
> On Dec 11, 2007 9:33 PM, Jonathan Chew <[EMAIL PROTECTED]> wrote:
>
>> Yes. If you're interested, there is also an update to that presentation at
>>
>
> I think I've read that one too, and the chapter in the Solaris
> Internals book... all 3 are interesting :-D
>
>
>
On Dec 11, 2007 9:33 PM, Jonathan Chew <[EMAIL PROTECTED]> wrote:
> Yes. If you're interested, there is also an update to that presentation at
I think I've read that one too, and the chapter in the Solaris
Internals book... all 3 are interesting :-D
> Thanks for the pointers. I had the funny f
Rayson Ho wrote:
> On Dec 11, 2007 5:53 PM, Jonathan Chew <[EMAIL PROTECTED]> wrote:
>
>> No, not currently. It just assumes that there is some interconnect
>> between the nodes and may know the latency between them when the system
>> is not loaded.
>>
>
> Jonathan, I just found out that y
Jonathan Chew wrote:
> Rafael Vanoni wrote:
>> Hey everyone
>>
>> Is the kernel aware of the status of the interconnect between
>> different NUMA nodes ?
>>
>
> No, not currently. It just assumes that there is some interconnect
> between the nodes and may know the latency between them when th
On Dec 11, 2007 5:53 PM, Jonathan Chew <[EMAIL PROTECTED]> wrote:
> No, not currently. It just assumes that there is some interconnect
> between the nodes and may know the latency between them when the system
> is not loaded.
Jonathan, I just found out that you are the author of the MPO (Memory
P
Rafael Vanoni wrote:
> Hey everyone
>
> Is the kernel aware of the status of the interconnect between different
> NUMA nodes ?
>
No, not currently. It just assumes that there is some interconnect
between the nodes and may know the latency between them when the system
is not loaded.
> For
Hey everyone
Is the kernel aware of the status of the interconnect between different
NUMA nodes ?
For instance, when an app is transferring data from one node to another,
saturating the interconnect between these two. Are we aware of this ?
I haven't seen any code that collects telemetry from
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