From 56c9879771765b19144ee077a71a6dce6ba4e088 Mon Sep 17 00:00:00 2001 From: normal Date: Thu, 4 May 2017 02:13:11 +0000 Subject: 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 --- benchmark/bm_io_pipe_rw.rb | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 benchmark/bm_io_pipe_rw.rb (limited to 'benchmark') 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 -- cgit v1.2.3