From: normalperson@...
Date: 2015-06-10T00:43:07+00:00
Subject: [ruby-core:69511] [Ruby trunk - Feature #11242] [Open] [PATCH] socket: alloa explicit buffer for recv and recv_nonblock

Issue #11242 has been reported by Eric Wong.

----------------------------------------
Feature #11242: [PATCH] socket: alloa explicit buffer for recv and recv_nonblock
https://bugs.ruby-lang.org/issues/11242

* Author: Eric Wong
* Status: Open
* Priority: Normal
* Assignee: Yukihiro Matsumoto
----------------------------------------
---
Note, this relies on [Feature #11229]

This reduces GC overhead and makes the API more consistent
with IO#read and IO#read_nonblock.

Benchmark results:

             user     system      total        real
alloc    0.130000   0.280000   0.410000 (  0.420656)
extbuf   0.100000   0.220000   0.320000 (  0.318708)
------------------------8<-----------------------
require 'socket'
require 'benchmark'
nr = 100000
msg = ' ' * 16384
size = msg.bytesize
buf = ' ' * size
UNIXSocket.pair(:DGRAM) do |a, b|
  Benchmark.bmbm do |x|
    x.report('alloc') do
      nr.times do
        b.send(msg, 0)
        a.recv(size, 0)
      end
    end

    x.report('extbuf') do
      nr.times do
        b.send(msg, 0)
        a.recv(size, 0, buf)
      end
    end
  end
end
---


---Files--------------------------------
0001-socket-allow-explicit-buffer-for-recv-and-recv_nonbl.patch (7.45 KB)


-- 
https://bugs.ruby-lang.org/