[Info-vax] Oracle Database vs Oracle/Rdb

Arne Vajhøj arne at vajhoej.dk
Sat Jul 13 00:30:11 EDT 2019


On 6/27/2019 10:07 PM, Dave Froble wrote:
> On 6/27/2019 5:02 PM, Hein RMS van den Heuvel wrote:
>> From a performance perspective, RDb on OpenVMS is probably, but not 
>> certainly, superior to Oracle-Oracle. They'll probably need more 
>> capacity (Memory, CPU) to run Oracle-Oracle with similar performance.
> 
> While I'm not a user, one thing has occurred to me.
> 
> Back in the day, when everything ran on one CPU, it didn't matter which 
> process was running, the CPU could do only one at a time.
> 
> Now today, with lots of CPUs (cores), multiple things can occur 
> simultaneously, and if every user is waiting on the Oracle engine to 
> service their needs, it probably is harder to scale that up, than to 

The Oracle database engine is multi-threaded, so it can service
multiple requests in parallel.

Arne





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