Re: compiling perl on freebsd to support ithreads

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Foo Ji-Haw schrieb:
| Hello Tom,
|
| Just to clarify: are you saying that forking is better than threading on
| windows? Even if it is, I will have to throw in IPC to talk between the
| forks?


No. What I'm trying to say:
When using Mod-Perl2 on win32 your modules have to be thread-safe
because you don't have the possibility to use prefork(like on Unix)
because it simply doesn't exists as a processing module for apache2 on
win32.

Hence on win32 you need a perl with ithreads-support. On your freebsd
you could turn of threads when running apache2 with prefork.

=> Setup on win32:
~   + perl with ithreads
~   + apache2 with win32-mpm
=> Setup on freebsd:
~ => A
~   + perl with ithreads
~   + apache2 with worker-mpm
~ => B:
~   + perl without ithreads
~   + apache2 with prefork

Tom

|
| Tom Schindl wrote:
|
| Foo Ji-Haw schrieb:
| | Hello Michael,
| |
| | Are you saying that Perl with ithreads is slower, therefore
| | implementation of threading on Perl is generally avoided?
| |
| | I write apps for both Windows and UNIX platforms. I thought that
| | iThreads is the better alternative to forking, which I think is not
| well
| | implemented in Windows.
| |
|
| As far as I know there's only a threaded mpm for Apache2 available on
| win32. If you have to support win32 and unix your modules must certainly
| be thread aware which means you can not use all functions
| mod_perl-provides to you. e.g. setting the document_root is one of those
| if I remember correctly. You cannot use perls "chdir", ... .
|
| Perl with compiled threads support (used or not used) is much slower and
| when new threads are started the whole memory is copied over because
| there's no copy-on-write logic like there is for fork.
|
|
| Tom
|
| | Michael Peters wrote:
| |
| |> Foo Ji-Haw wrote:
| |>
| |>
| |>> Hello Philip,
| |>>
| |>> You are suggesting that FBSD 4.x is not easy to compile ithreads via
| |>> ports. I wonder why FBSD even on 5.x does not come with ithreads
| |>> precompiled (Linux does!). But I find it quite a deterent to use FBSD
| |>> for multiple apps in the future.
| |>>
| |>
| |>
| |> One of the biggest complaints I hear (and voice) is that the linux
| |> distros ship a perl with ithreads. It's slower and almost noone
| wants or
| |> needs it. It looks like FBSD is doing what the majority of people want
| |> it to do, so I wouldn't knock it :)
| |>
| |>
| |>
| |
| |
|
|>

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