From: Lothar Scholz <mailinglists@...>
Date: 2004-11-24T21:22:49+09:00
Subject: Re: [Ann] Checkpointing Ruby applications (DragonFlyBSD only)

Hello Michael,

MN> Michael Neumann wrote:
>> Lothar Scholz wrote:
>> 
>>> Hello Michael,
>>>
>>> MN>    Checkpoint.checkpoint('dump') do
>>> MN>       # setup sockets on resume
>>> MN>       $conn = TCPServer.open('localhost', 9999)
>>> MN>    end
>>>
>>> MN> If you resume from "dump" (type 'checkpt -r dump' on command line, or
>>> MN> 'ruby -r checkpoint -e 'Checkpoint.resume("dump")'), the block
>>> will be
>>> MN> executed.
>>>
>>> Did you any measurements how much time is saved for startup of a
>>> complexer ruby program with lots of requires ? Something like
>>> FreeRide would be nice. I don't have BSD installed so i can't do it
>>> myself.
>> 
>> 
>> Not yet. I never had timing problems with lots of requires...
>> If I can compile freeride (FX...) easily I'll report my results.

MN> It's not possible to restore freeride (or any GUI programm, I guess), as
MN> X11 is involved... Sockets!

Right, but you can set a checkpoint before connecting to X11.

Could be nice for large, commercial software. Startup time when you
require hundred thousand lines ruby code is not really funny.

Lisp/Smalltalk users know what i'm talking about.


-- 
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 Lothar Scholz                        http://www.ruby-ide.com
 CTO Scriptolutions                   Ruby, PHP, Python IDE 's