From: SASADA Koichi <ko1@...>
Date: 2008-08-13T11:35:11+09:00
Subject: [ruby-core:18255] Re: result for mget [last:10 MIME/multipart] (1/1) (ruby-core ML)

Hi,

Giuseppe Bilotta wrote:
> I agree with this. I'm not sure if querying for the current priority
> is widely used, but I work on at least one project where it's
> necessary to set some intensive threads to a lower priorty to prevent
> them from gobbling up too much CPU from the main threads, and not
> having some way to reduce thread priority would be of noticeable
> impact on our code.

I have no idea to achieve your issue.

Seeing other environment:

- Python: there is no priority on Thread.
- Perl ithread: OS dependent priority.
   (not affect on most UNIX environment)
   (on Windows environment, we can use priority)
- C, C++'s native thread: ditto.

(Please point out if you find mistakes)


There are 2 options:

1. This is Ruby's good point, so we must support
    OS independent exact thread scheduler
    (with development/running cost).

2. We don't need such big mechanism on thread because
    other environments don't support it.

(optional-3: we should choose 1 or 2 on build/launch timing)


Any comments?
-- 
// SASADA Koichi at atdot dot net