From ef59670a44f30df7f07dd7a1438a2c27652bcb3c Mon Sep 17 00:00:00 2001 From: normal Date: Sat, 22 Mar 2014 23:34:21 +0000 Subject: st.c: use power-of-two sizes to avoid slow modulo ops * st.c (hash_pos): use bitwise AND to avoid slow modulo op (new_size): power-of-two sizes for hash_pos change (st_numhash): adjust for common keys due to lack of prime modulo [Feature #9425] * hash.c (rb_any_hash): right shift for symbols * benchmark/bm_hash_aref_miss.rb: added to show improvement * benchmark/bm_hash_aref_sym_long.rb: ditto * benchmark/bm_hash_aref_str.rb: ditto * benchmark/bm_hash_aref_sym.rb: ditto * benchmark/bm_hash_ident_num.rb: added to prevent regression * benchmark/bm_hash_ident_obj.rb: ditto * benchmark/bm_hash_ident_str.rb: ditto * benchmark/bm_hash_ident_sym.rb: ditto git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45384 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- ChangeLog | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'ChangeLog') diff --git a/ChangeLog b/ChangeLog index 45a5ad9afd..8a230d4e4b 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,19 @@ +Sun Mar 23 08:12:27 2014 Eric Wong + + * st.c (hash_pos): use bitwise AND to avoid slow modulo op + (new_size): power-of-two sizes for hash_pos change + (st_numhash): adjust for common keys due to lack of prime modulo + [Feature #9425] + * hash.c (rb_any_hash): right shift for symbols + * benchmark/bm_hash_aref_miss.rb: added to show improvement + * benchmark/bm_hash_aref_sym_long.rb: ditto + * benchmark/bm_hash_aref_str.rb: ditto + * benchmark/bm_hash_aref_sym.rb: ditto + * benchmark/bm_hash_ident_num.rb: added to prevent regression + * benchmark/bm_hash_ident_obj.rb: ditto + * benchmark/bm_hash_ident_str.rb: ditto + * benchmark/bm_hash_ident_sym.rb: ditto + Sat Mar 22 22:56:45 2014 NARUSE, Yui * addr2line.c (fill_lines): compare the file names of object in which -- cgit v1.2.3