diff options
| author | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-05-04 02:13:11 +0000 |
|---|---|---|
| committer | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-05-04 02:13:11 +0000 |
| commit | 56c9879771765b19144ee077a71a6dce6ba4e088 (patch) | |
| tree | 255476783f4e6368990f3d92a9c6d7a14f580dfb /benchmark | |
| parent | 8c00c6d5b3284c4684d8667149dd1fe12b2bf89b (diff) | |
| download | ruby-56c9879771765b19144ee077a71a6dce6ba4e088.tar.gz | |
benchmark: new single-threaded read/write benchmark with pipe
This is currently for testing GVL performance in the uncontended
case: IO#write and IO#read unconditionally release GVL for
blocking I/O with pipe.
It will also be interesting to see how this changes if we switch
to M:N threading model.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58556 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'benchmark')
| -rw-r--r-- | benchmark/bm_io_pipe_rw.rb | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/benchmark/bm_io_pipe_rw.rb b/benchmark/bm_io_pipe_rw.rb new file mode 100644 index 0000000000..6862a8ae61 --- /dev/null +++ b/benchmark/bm_io_pipe_rw.rb @@ -0,0 +1,13 @@ +# Measure uncontended GVL performance via read/write with 1:1 threading +# If we switch to M:N threading, this will benchmark something else... +r, w = IO.pipe +src = '0'.freeze +dst = String.new +i = 0 +while i < 1_000_000 + i += 1 + w.write(src) + r.read(1, dst) +end +w.close +r.close |