From: Yukihiro Matsumoto <matz@...>
Date: 2008-10-06T12:57:39+09:00
Subject: Re: Concurent (using threads) slower than sequential -doubt

Hi,

In message "Re: Concurent (using threads) slower than sequential -doubt"
    on Mon, 6 Oct 2008 12:40:08 +0900, Carlos Ortega <caof2005@yahoo.com> writes:

|As you see, the thread based program run slower.
|I thought that by using threads it will be faster, but it didn't....Why
|is it slower?

Threads require context switching, so that they tend to run slower,
especially green threads like Ruby 1.8 has.

							matz.