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author | watson1978 <watson1978@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-05-21 03:36:31 +0000 |
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committer | watson1978 <watson1978@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-05-21 03:36:31 +0000 |
commit | 95fb25c9b2cfd0205319c56dd783ec75b53f0909 (patch) | |
tree | 973f321b118fbaa05c6f5d0fdc697a92cf716c59 /hash.c | |
parent | cf21f0a87d393f9bc52e4cce4a70ce90165c9bc5 (diff) | |
download | ruby-95fb25c9b2cfd0205319c56dd783ec75b53f0909.tar.gz |
Improve Time#+ & Time#- performance
* time.c (wadd): use internal addv() function to calculate internal value in
Time object. On 64-bit machine, Time object might have Fixnum object
internally by default and addv() can calculate Fixnum objects directly.
* time.c (wsub): use internal subv() function due the same reason in above.
Time#+ & Time#- will be faster around 15%.
[ruby-dev:50036] [Bug #13357] [Fix GH-1547]
### Before
user system total real
Time#+ 0.820000 0.000000 0.820000 ( 0.818081)
Time#- 0.810000 0.000000 0.810000 ( 0.813835)
### After
user system total real
Time#+ 0.710000 0.000000 0.710000 ( 0.710241)
Time#- 0.710000 0.010000 0.720000 ( 0.714151)
### Test code
require 'benchmark'
Benchmark.bmbm do |x|
x.report "Time#+" do
t = Time.now
2000000.times do
t + 1
end
end
x.report "Time#-" do
t = Time.now
2000000.times do
t - 1
end
end
end
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58829 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'hash.c')
0 files changed, 0 insertions, 0 deletions