Performance differences between 5.1 and 5.2.1

Hi,

I noticed (and measured) an important performance difference between  
my application running on RMCL 5.1 and the same application running on  
5.2.1.
Only loading all the application code, from a fresh RMCL delivery, it  
takes on 5.2.1 almost twice as much as in 5.1.  Then, every  
functionality is slower on 5.2.1 and for some specific application  
tasks I could even measure a difference of a factor 4.

I was wondering if someone else is having such performance problems  
with 5.2.1

In both cases I am using a 1 GB dump, which, btw, on version 5.2.1  
shows such warning on the listener:

Welcome to Macintosh Common Lisp Version 5.2.1!
; Warning: Requested 1073741824 bytes of heap. Max is 1073000000 bytes.
; While executing: CCL::CHECK-CARBONLIB-VERSION
?


Is there a connection?


best regards
Sandro

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