[Info-vax] What does VMS get used for, these days?

[Jan-Erik Söderholm]

Den 2022-11-15 kl. 03:16, skrev kemain.nospam at gmail.com:
> 
>> -----Original Message-----
>> From: Info-vax <info-vax-bounces at rbnsn.com> On Behalf Of Arne Vajhøj
>> via Info-vax
>> Sent: Monday, November 14, 2022 8:53 PM
>> To: info-vax at rbnsn.com
>> Cc: Arne Vajhøj <arne at vajhoej.dk>
>> Subject: Re: [Info-vax] What does VMS get used for, these days?
>>
>> On 11/14/2022 1:59 PM, Simon Clubley wrote:
>>> On 2022-11-11, Arne Vajhøj <arne at vajhoej.dk> wrote:
>>>> On 11/11/2022 7:40 PM, Scott Dorsey wrote:
>>>>> =?UTF-8?Q?Arne_Vajh=c3=b8j?=  <arne at vajhoej.dk> wrote:
>>>>>> On 11/10/2022 9:51 AM, Scott Dorsey wrote:
>>>>>>> As software becomes more and more expensive, I think the need to
>>>>>>> have an efficient operating system that provides database features
>>>>>>> in the kernel becomes more important.
>>>>>>
>>>>>> Database in the actual OS kernel or just database shipping with the
>>>>>> OS distribution?
>>>>>>
>>>>>> It is not uncommon to put application functionality in the kernel
>>>>>> today, but I am not keen on the idea.
>>>>>
>>>>> I think in the kernel.  Maybe not in the top ring, but in a ring below it.
>>>>> I want fast database access, I want rapid transaction turnover, I
>>>>> don't care necessarily about realtime operation or any direct UI
>>>>> other than for administration, or ever specifically making deadline.
>>>>> I'm thinking of a specialized database engine.
>>>>
>>>> I don't think I have ever heard about that for database.
>>>
>>> Rdb ? :-)
>>
>> I thought that was in user space not kernel space (P0 vs S0 in more VMSish
>> teminology).
>>

The Rdb code is not in the kernel as such. But of course, Rdb has a quite
close integration with and dependencies on VMS features usch as DLM and
locking functions.


>> Arne
> 
> For historical purposes, before it was sold to Oracle, I believe the Rdb runtime was included with the OpenVMS distribution.
> 

What has that to do with kernel vs. user space?



> Can't remember what licensing terms were.
> 
> Regards,
> 
> Kerry Main
> Kerry dot main at starkgaming dot com
> 
> 
> 
>