[PATCH] Specifying MACRO for increase performence in ppc64
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%
Updated by gustavo.pedrosa (Gustavo Frederico Temple Pedrosa) almost 6 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) almost 6 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.