Paul Hildebrandt wrote on 28 Sep 1999 at 23:11 to Jaap van.Veen:

 PH> Hello Jaap!

 PH> 28 Sep 99 16:49, Jaap van.Veen wrote to All:

 JvV> Hallo All,

 JvV> I have a quite conventional system 486DX266 with 40MB memory and
 JvV> two 400MB IDE harddisks and WARP 3.0. Since installing FP40 from
 JvV> FP37 I noticed a 10 to 15% performance increase for most
 JvV> applications.

 JvV> Does somebody know what could have caused this increase??

 PH> IBM's reason for releasing fixpacks is to increase performance and
 PH> fix bugs. Unlike MS which just releses a newer version and charges
 PH> everyone for it. 

 PH> If you meant what in the fixpack increased the performance I
 PH> haven't the slightest idea. I apply fixpacks as little as possible.
I discovered that I have not yet reacted to your remarks.

You have to make sure that your system is 2K ready.
I applied FP17 just for the fun to know how such fixpaks are applied.
Then I installed FP 32 to prepare for 2K. Lateron I found that this was not
completely correct. So I jumped to FP36. However this one did not support the
Dutch Keyboard correctly (dead key support). So I had to back out.
So I took FP37. At the same time I had a system crash so I did not know wether 
some behaviours of the system resulted from the crash or from the fixpak. One
odd behaviour was with DOSCIM (comsuserve information manager for DOS). After
receiving some messages it took some 7 seconds or more to save the received
information before going offline. Now after installing FP40 this delay
has disappeared and the system goes on hook immediatly after receiving the
messages. So clearly it has to do with hard disk management.

So the delay has been introduced by FP37 and solved by FP40.
Jaap 
--- timEd/2 1.10+