Re: Crippling change in ld memory/cpu consumption in v2.12/v2.13

[Alan Modra]

On Fri, Oct 04, 2002 at 03:53:31PM -0500, Marc Paterno wrote:
> [2] ld v2.11 uses about 4.2 kbytes memory per object file; ld v2.12
> uses about 26 kbytes memory per object file.

Hmm, the section hash table, which uses a default size of 4051, will
account for 16k or so of extra memory per object.  The following
patch should lop off 15k per object from your figures.

        * opncls.c (_bfd_new_bfd): Use a smaller section hash table.

Index: bfd/opncls.c
===================================================================
RCS file: /cvs/src/src/bfd/opncls.c,v
retrieving revision 1.10
diff -u -p -r1.10 opncls.c
--- bfd/opncls.c        17 Jun 2002 02:33:42 -0000      1.10
+++ bfd/opncls.c        5 Oct 2002 05:52:37 -0000
@@ -63,7 +63,9 @@ _bfd_new_bfd ()
   nbfd->direction = no_direction;
   nbfd->iostream = NULL;
   nbfd->where = 0;
-  if (!bfd_hash_table_init (&nbfd->section_htab, bfd_section_hash_newfunc))
+  if (!bfd_hash_table_init_n (&nbfd->section_htab,
+                             bfd_section_hash_newfunc,
+                             251))
     {
       free (nbfd);
       return NULL;

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre