public inbox for cygwin@cygwin.com
 help / color / mirror / Atom feed
From: "Larry Hall (Cygwin)" <reply-to-list-only-lh@cygwin.com>
To: cygwin@cygwin.com
Subject: Re: App runs 8x slower on dual core machine (with test case to replicate issue)
Date: Fri, 10 Aug 2012 03:52:00 -0000	[thread overview]
Message-ID: <502483DE.3010101@cygwin.com> (raw)
In-Reply-To: <loom.20120810T052639-721@post.gmane.org>

On 8/9/2012 11:29 PM, Zach Saw wrote:
> Corinna Vinschen <corinna-cygwin <at> cygwin.com> writes:
>
>> Thanks for the testcase, but... would you mind to change it to take the
>> boost lib out of the picture, by using just plain pthread functions, if
>> possible in plain C?
>
> Apparently someone else has already encountered similar problems in
> cygwin perl
> (http://www.nntp.perl.org/group/perl.perl5.porters/2011/07/msg174491.html)
> last year that went unfixed. Now that you have a test case in C++/Boost,
> you're asking for plain pthread/C?

The easier it is to demonstrate the problem with a minimum of
overhead/code, the quicker the fix.  And now that it's reported to the
Cygwin list, the problem is at least on the right radar.

-- 
Larry

_____________________________________________________________________

A: Yes.
 > Q: Are you sure?
 >> A: Because it reverses the logical flow of conversation.
 >>> Q: Why is top posting annoying in email?

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple

  parent reply	other threads:[~2012-08-10  3:45 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-09  8:17 Zach Saw
2012-08-09  9:22 ` Corinna Vinschen
2012-08-10  3:39   ` Zach Saw
2012-08-10  3:45     ` Daniel Colascione
2012-08-10  4:04       ` Zach Saw
2012-08-10 16:37         ` Andrew DeFaria
2012-08-11  1:14           ` Zach Saw
2012-08-11  2:32             ` Christopher Faylor
2012-08-10  3:52     ` Larry Hall (Cygwin) [this message]
2012-08-10  4:10       ` Zach Saw
2012-08-10  3:56     ` Linda Walsh
2012-08-10  4:13       ` Zach Saw
2012-08-10  6:31         ` Zach Saw
2013-01-22  4:51 ` Zach Saw
2013-01-22  8:51   ` Corinna Vinschen
2012-08-09 13:03 Zach Saw

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=502483DE.3010101@cygwin.com \
    --to=reply-to-list-only-lh@cygwin.com \
    --cc=cygwin@cygwin.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).