[#61171] Re: [ruby-changes:33145] normal:r45224 (trunk): gc.c: fix build for testing w/o RGenGC — SASADA Koichi <ko1@...>
(2014/03/01 16:15), normal wrote:
3 messages
2014/03/01
[#61243] [ruby-trunk - Feature #9425] [PATCH] st: use power-of-two sizes to avoid slow modulo ops — normalperson@...
Issue #9425 has been updated by Eric Wong.
4 messages
2014/03/03
[#61359] [ruby-trunk - Bug #9609] [Open] [PATCH] vm_eval.c: fix misplaced RB_GC_GUARDs — normalperson@...
Issue #9609 has been reported by Eric Wong.
5 messages
2014/03/07
[#61360] Re: [ruby-trunk - Bug #9609] [Open] [PATCH] vm_eval.c: fix misplaced RB_GC_GUARDs
— SASADA Koichi <ko1@...>
2014/03/07
(2014/03/07 19:09), normalperson@yhbt.net wrote:
[#61362] Re: [ruby-trunk - Bug #9609] [Open] [PATCH] vm_eval.c: fix misplaced RB_GC_GUARDs
— Eric Wong <normalperson@...>
2014/03/07
SASADA Koichi <ko1@atdot.net> wrote:
[#61424] [REJECT?] xmalloc/xfree: reduce atomic ops w/ thread-locals — Eric Wong <normalperson@...>
I'm unsure about this. I _hate_ the extra branches this adds;
13 messages
2014/03/12
[#61466] Re: [REJECT?] xmalloc/xfree: reduce atomic ops w/ thread-locals
— SASADA Koichi <ko1@...>
2014/03/13
Hi Eric,
[#61471] Re: [REJECT?] xmalloc/xfree: reduce atomic ops w/ thread-locals
— Eric Wong <normalperson@...>
2014/03/13
SASADA Koichi <ko1@atdot.net> wrote:
[#61508] Re: [REJECT?] xmalloc/xfree: reduce atomic ops w/ thread-locals
— SASADA Koichi <ko1@...>
2014/03/15
(2014/03/14 2:12), Eric Wong wrote:
[#61509] Re: [REJECT?] xmalloc/xfree: reduce atomic ops w/ thread-locals
— Eric Wong <normalperson@...>
2014/03/15
SASADA Koichi <ko1@atdot.net> wrote:
[#61452] [ruby-trunk - Feature #9632] [Open] [PATCH 0/2] speedup IO#close with linked-list from ccan — normalperson@...
Issue #9632 has been reported by Eric Wong.
3 messages
2014/03/13
[#61496] [ruby-trunk - Feature #9638] [Open] [PATCH] limit IDs to 32-bits on 64-bit systems — normalperson@...
Issue #9638 has been reported by Eric Wong.
4 messages
2014/03/14
[#61568] hash function for global method cache — Eric Wong <normalperson@...>
I came upon this because I noticed existing st numtable worked poorly
7 messages
2014/03/17
[#61605] Re: hash function for global method cache
— SASADA Koichi <ko1@...>
2014/03/20
(2014/03/18 8:03), Eric Wong wrote:
[#61606] Re: hash function for global method cache
— Eric Wong <normalperson@...>
2014/03/20
SASADA Koichi <ko1@atdot.net> wrote:
[#61631] Re: hash function for global method cache
— =?KOI8-R?B?4NLJyiDzz8vPzM/X?= <funny.falcon@...>
2014/03/22
what's the profit from using binary tree in place of hash?
[#61632] Re: hash function for global method cache
— Eric Wong <normalperson@...>
2014/03/22
Юрий Соколов <funny.falcon@gmail.com> wrote:
[#61687] [ruby-trunk - Bug #9606] Ocassional SIGSEGV inTestException#test_machine_stackoverflow on OpenBSD — normalperson@...
Issue #9606 has been updated by Eric Wong.
3 messages
2014/03/26
[#61760] [ruby-trunk - Feature #9632] [PATCH 0/2] speedup IO#close with linked-list from ccan — normalperson@...
Issue #9632 has been updated by Eric Wong.
3 messages
2014/03/30
[ruby-core:61638] Re: [ruby-trunk - Feature #9425] [PATCH] st: use power-of-two sizes to avoid slow modulo ops
From:
Eric Wong <normalperson@...>
Date:
2014-03-22 23:41:24 UTC
List:
ruby-core #61638
normalperson@yhbt.net wrote: > OK, I was right about compare_by_identity being worse with power-of-two, > but I fixed it by tweaking numhash: > > http://bogomips.org/ruby.git/patch?id=1579e9d0d82789 I tweaked that further, adding +3 instead of +1 to RUBY_SPECIAL_SHIFT in r45384. Also updated NEWS in case some extensions need tweaking for performance. Haswell Xeon E3-1230 v3 numbers: hash_aref_miss 1.166 hash_aref_str 1.167 hash_aref_sym 1.224 hash_aref_sym_long 1.270 hash_flatten 1.656 hash_ident_num 1.142 hash_ident_obj 1.193 hash_ident_str 1.194 hash_ident_sym 1.171 hash_keys 1.002 hash_shift 1.122 hash_values 1.006 loop_whileloop2 1.001 vm2_bighash* 1.233