I have to say I’m impressed by the feedback I got from you on the psstream PHP extension. However, it has been a while now since I reached the conclusion that the whole idea of psstream is essentially flawed. Don’t get me wrong, the software does its job but it leaves a lot to be desired from it once you want high-volume streaming on your website (maybe on a youtube clone or something). Here are the big issues:

1. Basically, the PHP virtual machine eats a lot of memory, it starts quite slow and has a relatively low limit on how many PHP processes can run in parallel. Streaming from PHP engages all that machinery without justice and consumes a ridiculous amount of resources for something that shouldn’t!

2. Usually we run PHP on a web-server (Apache, Nginx, Lighttpd etc.). This means that all the data that PHP delivers to the clients actually goes through the web-server, therefore increasing to the problem.

3. Psstream uses a moov-seek code that was taken from the great guys at code-shop.com and it did the job. However, (without disrespect) that code has grossly fallen behind (even the guys at code-shop have re-written it from scratch in newer versions of their modules). It is not optimized, uses quite a bit of memory (to load the atoms) and is simply not optimized at all.

These would be just a few (but the implications are much deeper). As a consequence I have written a brand new streamer called Loomiere/Streamer that yields far higher performance than psstream. Therefore I regret to announce that as of today, the psstream PHP extension is officially discontinued.

On the bright side, you can now use (and contribute to) the new streamer that promises a lot. I have written a more detailed article about Loomiere/Stream on my new blog valeriu.palos.ro.

So you’re invited to check it out.

“psstream” is dead, long live “Loomiere/Stream”!

Enjoy!

Edit: These packages should be considered obsolete for Intrepid and future Ubuntu releases, since the repo at the tango website is now hosting (hopefully soon-to-be-)official packages.

First off, I have created a new repository since I had trouble maintaining the one at the tango website (dsource) and also it seemd that people in the community have started experimenting with it in the attempt to create some official debian packages. This new repo is hosted on my own company’s webservers so everything should be much easier. I will continue upgrading these packages for as long as it will be neccessary (basically until the official Ubuntu/Debian repos will have their own official packages).

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Results:

php -f google_th_4b.php 

Loading primes... done.
Solving for inputs 25, 129, 139, 1087, 1199…
Found prime number 9256873 in 0.32996106147766 seconds.

php -f google_th_4b.php 

Loading primes... done.
Solving for inputs 7, 17, 41, 541…
Found prime number 7830239 in 0.75763010978699 seconds.

Sources:

google_th_4b_prepare.phps

google_th_4b.phps

So now, we have a complete set of packages (the GDC set) for x86_64. How awesome is that?!

ATTENTION: I am *not* saying this is stable. In fact it is very possible that this will generate quite a lot of segfaults but it is a good start. I am *very* curious to see how well it works (if at all) !?…

Enjoy!

A major change is that DMD no longer comes bundled with Phobos; if you want Phobos functionality then install Tangobos (or use the GDC+Phobos packages in the Ubuntu repos - but I don’t recommend that).

Just for convenience here is the article with information about our repository at the Tango website.

Enjoy (and tell me is something is wrong please)!

However there is a slight problem: these versions are only snapshots at the present time so there are no binary packages provided for them by our beloved Linux distributions and since I really don’t like messing up my beautiful Ubuntu Hardy installation with (uninstallable) source compilations I couldn’t make use of PHP’s new features. This is where CheckInstall comes in to the rescue…

Edit: There now exists a set of pre-built .deb packages for Debian and Ubuntu here, thanks to Void. (more…)

And here I am, finally triumphant in my quest to implement a package repository in the Tango sub-section at DSource.org (with the help of Lars Ivar Igesund).

[Edited] The previous link I used to archive the packages is, however, not obsolete and I will update it further with both source scripts and binary packages (this is because some of you might still want to use “dpkg -i …” to install and not the repo - such as Debian users). Here’s the address: http://download.palos.ro/Debian D Packages/

The repository is at the following address (though you should follow the instructions below to add it to your apt configuration):
http://downloads.dsource.org/projects/tango/ubuntu/

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