[Info-vax] Chiphead News: Intel announces new Kaby Lake processors

[Simon Clubley]

On 2016-09-03, Paul Sture <nospam at sture.ch> wrote:
> On 2016-09-01, IanD <iloveopenvms at gmail.com> wrote:
>>
>> Linux has always been fast because it is lean and OpenVMS the slow
>> beast except for a brief time when Alpha ruled the world
>
> File I/O certainly, and the kernel folks are doing a lot of work on
> speeding things up in various areas.
>
> But ask yourself if you are falling for marketing when you say "Linux
> has always been fast".
>

You also need to make sure you are comparing like with like, for example
Linux in deferred write back mode versus VMS in write through mode.

>
>> I'm really looking forward to seeing how OpenVMS behaves against linux
>> when the two OS are running on the same bit of silicone. 
>
> Me too.  I'll admit to being something of a vandal when it comes to
> creating hefty workloads which push the boundaries. :-)
>

Don't forget to compare latency and upper bounds on operations in
addition to raw throughput when these tests are carried out.

For example, one OS might have faster raw throughput in certain
things, but the other OS might have latency guarantees missing in
the first OS.

Simon.

-- 
Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP
Microsoft: Bringing you 1980s technology to a 21st century world