[#12073] Re: Ruby is much slower on linux when compiled with --enable-pthread? — "M. Edward (Ed) Borasky" <znmeb@...>

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9 messages 2007/09/04

[#12085] New array methods cycle, choice, shuffle (plus bug in cycle) — David Flanagan <david@...>

Four new methods have been added to Array the Ruby 1.9 trunk. I've got

81 messages 2007/09/06
[#18036] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — Charles Oliver Nutter <charles.nutter@...> 2008/07/31

Restarting this thread because I missed it the first time around and

[#18037] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — Yukihiro Matsumoto <matz@...> 2008/07/31

Hi,

[#18038] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — "Gregory Brown" <gregory.t.brown@...> 2008/08/01

On Thu, Jul 31, 2008 at 7:50 PM, Yukihiro Matsumoto <matz@ruby-lang.org> wrote:

[#18046] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — Michael Neumann <mneumann@...> 2008/08/01

Gregory Brown wrote:

[#18048] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — Charles Oliver Nutter <charles.nutter@...> 2008/08/01

Michael Neumann wrote:

[#18051] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — "David A. Black" <dblack@...> 2008/08/01

Hi --

[#18053] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — "Wilson Bilkovich" <wilsonb@...> 2008/08/01

On 8/1/08, David A. Black <dblack@rubypal.com> wrote:

[#18074] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — David Flanagan <david@...> 2008/08/01

Wilson Bilkovich wrote:

[#18080] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — Yukihiro Matsumoto <matz@...> 2008/08/02

Hi,

[#18097] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — "Pit Capitain" <pit.capitain@...> 2008/08/03

2008/8/2 Yukihiro Matsumoto <matz@ruby-lang.org>:

[#18040] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — Jim Weirich <jim.weirich@...> 2008/08/01

On Jul 31, 2008, at 7:33 PM, Charles Oliver Nutter wrote:

[#18056] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — Thomas Enebo <Thomas.Enebo@...> 2008/08/01

Jim Weirich wrote:

[#18059] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — Jim Weirich <jim.weirich@...> 2008/08/01

On Aug 1, 2008, at 1:53 PM, Thomas Enebo wrote:

[#12096] Next 1.8.6 on Sept. 22 — Urabe Shyouhei <shyouhei@...>

Hi all.

28 messages 2007/09/09

[#12201] how about actors implemented in ruby-core itself — hemant <gethemant@...>

Hi,

12 messages 2007/09/20

[#12248] arbitrary Unicode characters in identifiers? — David Flanagan <david@...>

12 messages 2007/09/26

[#12284] gc.c -- possible logic error? — Hugh Sasse <hgs@...>

I've been looking at Tom Copeland's memory allocation problem:

36 messages 2007/09/28
[#12329] Re: gc.c -- possible logic error? — Tanaka Akira <akr@...> 2007/10/01

In article <Pine.GSO.4.64.0709281302390.26570@brains.eng.cse.dmu.ac.uk>,

[#12305] Will 1.8.6 remain compiled with VC6? — "Luis Lavena" <luislavena@...>

Hello Core developers.

29 messages 2007/09/30
[#12306] Re: Will 1.8.6 remain compiled with VC6? — "Austin Ziegler" <halostatue@...> 2007/09/30

On 9/30/07, Luis Lavena <luislavena@gmail.com> wrote:

Re: Ruby is much slower on linux when compiled with --enable-pthread?

From: "M. Edward (Ed) Borasky" <znmeb@...>
Date: 2007-09-05 14:20:17 UTC
List: ruby-core #12077
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Florian Frank wrote:
> M. Edward (Ed) Borasky wrote:
>>> $ strace -c ruby -e '1.upto(100000) {|i| i.to_s}'
>>> % time     seconds  usecs/call     calls    errors syscall
>>> ------ ----------- ----------- --------- --------- ----------------
>>> 100.00    0.000655           0    200006           sigprocmask
>>> Yeah - it called sigprocmask over 200,000 times during that 100,000
>>> iteration loop.
>>> When compiled with --disable-pthread and running the same command,
>>> rt_sigprocmask gets called 4 times.
> 
> I wonder if calling sigprocmask is the right thing to do with pthreads enabled.
> I found this in the man page of pthread_sigmask:
> 
> "The use of the sigprocmask() function is unspecified in a multi-threaded
> process."
> 
> Maybe pthread_sigmask should be used if ruby has pthreads enabled?
> 

I do believe you're right ... on my system (Gentoo Linux 2.6.22 kernel,
gcc 4.1.2 and associated libraries) the same warning also shows up in
the "sigprocmask" man page. Time to dig out "rgrep" ;).
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