From PHP workers to Python threads -

-

Now I'm working on every machine in 50 PHP (CLI mode) workload (job) For example, an image Resizing the work they get the image (binary data) and the desired size in the workload. The worker works and returns the resized image. Then it is waiting for more jobs (loops in a smart way) I think I have the same executable, library and classes which are loaded 50 times. Am I right? Because it does not seem very effective.

Now I have a process that handles all the tasks and being able to use all available CPU cores only once being loaded efficient). I think a new thread will be started for each job and after the ending it will close the thread, if there are fewer than 50 threads in the work, more jobs will be accepted. If all 50 threads are busy, no additional jobs are accepted.

I am using a lot of libraries (for Memcach, Radis, MozillaFS, ...) to reach all the different components. And Python is the only language in addition to PHP, which supports all of them.

Can Python do what I want and will it be faster and more efficient in existing PHP solutions?

Most probably - yes but suppose you have to multithreading. Take a look at the multiprocessing module. It already includes the implementation of a pool, which you can use. And it basically solves the problem of GIL (Multithreading can only run 1 "standard python code" at any time - this is a very simple explanation).

It will still be a process per work process, but compared to starting all this in a different way, all the beginners-laborers loaded the libraries before entering the process-a copy-on - will be inherited in written manner. You will not start more than necessary, and you will not waste memory for the same Liberty / Class, if you have not actually separated the former pool state.

So yes - seeing only in this part, the dragon will ruin fewer resources and use the "good" employee-pool model. Is it really fast / low CPU-abuse, it is difficult to tell without testing, or at least viewing the code. Try it yourself.

Added: If you are worried about memory usage, then the dragon can also help as a "proper" garbage collector, while php is not a priority in GC (and not a good one) Also for good reason).


Comments

Post a Comment

Popular posts from this blog

MySql variables and php -

-
I am getting an error with php in order to format mysql_query () in php to format this string What is the right way? SELECT SELECT SELECT (*) Agents @AgentCount; User_Agent_English, User_Angent_Oursal, US.___Gent_Aginal, COUNT (User_Agent_Percade) ACC, COUNT (*) / (AgentCount) Percentage by agents user_agent_preser order DEC limit limit 50; In PHP, how am i setting $ query $ query = "SELECT count (*) agents @ agentcount; SELECT user_agent_parsed, User_agent_original , COUNT (user_agent_parsed) ascount, COUNT (*) / (@AgentCount) as a percentage by user_agent_parced by URI date DESC limit 50 "; This exact query will work properly if I put it in MySQL directly through a command line session. Do I need to release two separate php calls from mysql_query () and store the results first? I get the following error: There is an error in your SQL syntax; Instead of using a sub-selection and instead of using the 'SELECT user_agent_parsed, user_agent_original, ne...
Read more

url rewriting - How to implement the returnurl like SO in PHP? -

-
This URL should work even after the rewrite. Is this possible? Otherwise, I can only hardcoded everything If you are trying to create a login system with redirection You need to use the HTTP_REFERER header to find out where the user came from so that you can send it back there. The best way to do this is to use something like this in your login form: // - Login php & Lt; Input type = "password" name = "password" /> & Lt; Input type = "hidden" name = "returnrelale" value = "& lt ;? php echo $ redirectURL ;? & gt;" / & Gt; & Lt; / Form & gt; Please note that some ISP, browser or proxy will delete the referrer header, so you can not rely on each user to work fully. If you use a statement, to check whether the header exists or not, you can send those users back to the homepage or whatever. Edit If you are looking to use $ _SERVER ['REQUEST_URI'], if you are running Apache It sho...
Read more

Which Python client library should I use for CouchdB? -

-
I am starting to experiment with CouchDB because it looks like we have the right solution to certain problems That all the work will be on a new project, which does not have any legacy dependency, which the client library will suggest you use, and why? If we overlap any of the OS. Freeband is available only in the collection of its ports, but asks to use the library's project website. None of those people are Ubuntu, which is only with ships, since those two OSAs are not common in libraries, I am probably installing something from source (and hopefully if I have time, then Ubuntu and FreeBSD People pack the package). For those interests, I want to use CouchDB as a convenient intermediate storage space for data passed between different services - think of a message bus system, but less formalities with. For example, we have daemons that download and pars the web page, then send an interesting bit to other daemons for further processing. Many of them are ill-defined until the...
Read more