Actions
Feature #10081
closed[PATCH] Specifying MACRO for increase performence in ppc64
Description
To increase performance on ppc64 machines, the MACRO "powerpc64" were specified for the architecture, just like for x86_64 machines.
I've executed some benchmarks, see below:
Benchmark Before (milliseconds) After (milliseconds) Percentage difference
bm_vm2_regexp.rb 4955 4752 -4,10%
bm_so_meteor_contest.rb 6065 5817 -4,09%
bm_app_pentomino.rb 35122 34886 -0,67%
bm_hash_flatten.rb 3055 3011 -1,44%
bm_so_sieve.rb 1227 1210 -1,39%
Files
Updated by nobu (Nobuyoshi Nakada) over 10 years ago
PowerPC64 can unaligned access?
Updated by gustavo.pedrosa (Gustavo Frederico Temple Pedrosa) over 10 years ago
Nobuyoshi Nakada wrote:
PowerPC64 can unaligned access?
Yes, I have tested in my IBM POWER 7+ (rev 2.1)
Updated by nobu (Nobuyoshi Nakada) over 10 years ago
Thank you.
Possibly, can PACKED_STRUCT_UNALIGNED
also work on PowerPC64?
Updated by nobu (Nobuyoshi Nakada) over 10 years ago
- Status changed from Open to Closed
- % Done changed from 0 to 100
Applied in changeset r46915.
UNALIGNED_WORD_ACCESS on ppc64
- include/ruby/defines.h, siphash.c, st.c (UNALIGNED_WORD_ACCESS):
add PowerPC64 too, which is capable to access unaligned words.
patched by Gustavo Frederico Temple Pedrosa in [ruby-core:63937].
[Feature #10081] - regint.h (PLATFORM_UNALIGNED_WORD_ACCESS): ditto.
Actions
Like0
Like0Like0Like0Like0