[Info-vax] The best VMS features, was: Re: openvms renaming file
Robert A. Brooks
FIRST.LAST at vmssoftware.com
Mon May 28 11:46:42 EDT 2018
On 5/28/2018 11:01 AM, Dave Froble wrote:
> The problem with RMS isn't the design, it's the implementation. Modern RDBMS
> systems do much of their work in memory. RMS does the work on disk. Quite
> a large difference in speed, as one might expect.
>
> Re-implement RMS in the same manner and you'd see totally different
> performance. Ya got to remember how old the design and implementation of RMS
> is. 40 years ago it worked well.
You want stuff done in memory with RMS? Use global or local buffers, either
by $ SET FILE, FDL, etc . . .
Made a huge difference 30+ years ago; still can make a big difference today.
I'm not claiming this is as good as a modern in-memory database, but depending
upon the application, you can get an order of magnitude or two of improvement.
--
-- Rob
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