Experience with combo mode Baan5c

Does anybody have experience with the combomode for Baan5c. This means that the database process and the ntbshell process in WNT are integrated. It's described in case 115988.
If you have experience with it please let me know. It should increase performance with 20% according to Baan, but is this proven in practise.
:confused:

nope, haven't tried that
but certainly will give it a go on the test box

I'll let you know what happens.

Andy

First, the ntbshell implementation was done to avoid the overhead of the NT context switching. On servers that are lightly loaded, I did not see much difference in performance, but on medium to heavy servers, I do see a 5-15% performance improvement. Baan's 20% number is reflective of a box being able to run 20% more processes before becoming saturated. So, it improves scalability and performance.

I have also used it on a mainframe Baan 5 implementation. Running in the UNIX environment on a mainframe there are huge performance penalties for context switching, the combo bshell made a difference in batch job performance (sessions running about 18% faster if I recall).

UNIX manages processes more effectively so the payback is less than on NT (or so I have heard). I am waiting to test this on UNIX.

Random late night thoughts,

Jim

Due to some changes in the combo bshell, on fast systems you now see a visible performance improvement. However, I am encountering a regular series of errors where the bshell is reporting a stack overflow from the dbserver_dll. When I turn the combo mode off, this problem goes away.

I will post more info as I make progress on resolving this issue (but maybe someone else has already fixed the problem).

Don't recommend the latest porting set -- already done that -- it appears this problem was introduced in the latest 7.1c porting set.

-- Jim