"Memory defrag" patches and newer execs

[AmigaMance]

Hi.
 Since the memory allocation routines has changed in piru's exec44 and exec45 of AmigaOS to reduce memory fragmentation, i want to ask if simple memory defrag patches like fragless and fragcure are still useful or obsolete.

 Also: I've heard that these patches (or is it PoolMem?) can cause serious HD corruption with some FileSystems like PFS. Is this true?

[AmigaMance]

 I did some tests yesterday and i got some contradictive results.
 My test was to run a program which tends to fragment my ram for a while, quit the program and then use a utility to measure the fragmentation degree of my memory. The program  (game in this case) was Heretic 2 and the frag reporting utility was AmigaLoad.
 The interesting thing was that i get a 10% of fragmentation with theb FragCure patch installed and 6% without it. Strange.. Perhaps AmigaLoad doesn't give reliable results?

[AmigaMance]

I'd blame Heretic 2 rather.

I wouldn't know but i can say that the Amiga version of the game is less than perfect.

Does it even return all memory to system at exit?

Yes. Well, almost. After i quit and do a memory flush, i have only 200kb less fast ram.