slow compilation of large definition

[Matt Kaufmann]

The attached file provides an example where SBCL compilation took more than 20 times as long as CCL compilation, as seen by loading the attached file (logs provided in the file as comments). I realize that this isn't a bug, but I thought you might want to use this example as an opportunity to improve compilation speed, and I didn't know a better way to report this other than through the bug database.

I used SBCL 2.3.3.

~$ uname -a
Darwin Matts-MBP.attlocal.net 19.6.0 Darwin Kernel Version 19.6.0: Tue Jun 21 21:18:39 PDT 2022; root:xnu-6153.141.66~1/RELEASE_X86_64 x86_64
~$

* *features*
(:ARENA-ALLOCATOR :X86-64 :GENCGC :64-BIT :ANSI-CL :BSD :COMMON-LISP :DARWIN
 :IEEE-FLOATING-POINT :LITTLE-ENDIAN :MACH-O :PACKAGE-LOCAL-NICKNAMES :SB-LDB
 :SB-PACKAGE-LOCKS :SB-THREAD :SB-UNICODE :SBCL :UNIX)
*

[Matt Kaufmann (mkaufmann0)]

Thank you both for the great SBCL support!