Re: New Era, VB, Delphi, PB

David Williams wrote: > > In article <32AC1AF7.671C@west.co.za>, "Mark D. Stock" > <marks@west.co.za> writes > > > >Oh now here I agree. This is one of my pet topics when giving Informix > >training. The development of both RDBMS's and OS's, in my view, is going > >to cross paths somewhere in the not-to-distant future. As you say, if > >you look at what an OS does and what a modern day DBMS does, they are far > >too similiar. Modern UNIX now has checkpoints with fast recovery on system > >failure, instead of fsck!! I certainly think Informix should look at this > >area for future development. Perhaps we can get a job in R&D eh Tim? > > Count me in as well. I seem to remember some talk I had a while back > (in "Real Life" tm) which went along the lines of Informix's internal > thread scheduler is a lot like an OS process scheduler. You already > have part of the memory management code in that each thread has it's > own tch (Thread Control Block) and stack. Also memory is allocated > as internal pools and fragements / segments similar to UNIX > sbrk/malloc malloc. onmode -F even frees unused memory so memory > allocation/deallocation is taken care of. > > Disk I/O is handled by AIO/KAIO threads which when using raw disk are > very close to the device driver for the disk. Why have an OS in the > middle translating KAIO system calls to calls to the disk device > driver? Define an API like OnBar does to backup devices and have the > disk driver manufacturers write to that standard instead. > > Poll threads/listen threads handle part of network comms and internal > mutexs/latches handle dealing with multiple processors. > > Hey - it's almost there!! All we need is something to boot it and > direct links with device drivers and we can dump this dumb OS > sheduler and really improve performance! Very true. We have the source for a good OS (Linux), so where's the source for OnLine? :-)) Then we can finish the job. ;-) Has anyone seen a download site for OnLine source? :-O -- Mark. +-------------------------------------------------------------------------+ |Mark D. Stock - The West Solutions Group http://www.west.co.za | | The Informix FAQ is at http://www.iiug.org | |mailto:marks@west.co.za +------------------------------------------------+ |Tel: +27 11 803 2151 |If it doesn't work... force it! | |Fax: +27 11 803 2189 |If it breaks... it needed replacing anyway! | |Cell: +27 83 250 2325 |Well, that's how I code anyway! | +------------------------+------------------------------------------------+