Re: PHP to C translator

Well, the scripts do not iteract with a database. They read a some text files from disk, do some calculations and output some more text files to disk. The calculation part is super-fast. The output part is super-fast also. BUT, the reading part from the text files is painfully slow.... For a text file of 350MB, the script run from PHP3 takes about 1.5h. For the same text file, the script run from PHP4 takes about 30m. (wow, that *is* an improvement, 300%). All files are local to the machine. Judging from the HDD led activity (yes, not a very reliable indicator) I think it can be done faster. I haven't tried the Zend optimizer, yet. I'm running on SuSE 6.4, AMD-K7/500, HDD-UDMA66, 256MB RAM. Any more ideas? Thank you fro your time, -Stathis. Richard Lynch wrote: > > In article <39635EC0.811CD793@di.uoa.gr>, rouvas@di.uoa.gr (Rouvas > Stathis) wrote: > > > I have written a bunch of PHP3 scripts that run in stand-alone mode > > (cgi). > > All goes extremely well. > > Unfortunately they take an inordinate ammount of time to finish. > > What do the scripts do?... > What part of the scripts is taking all the time? > Do some metering and find out where all the time is going... > The Usual Suspects: > Opening database connection over and over in one script. > Long loops to iterate through stuff an SQL query could have filtered. > Creating buttloads of small, silly class objects because you like OO. > > > I haven't tried PHP4 yet, but does anyone know if a translator from PHP > > to C in a Linux environment is available? > > I don't think any such beast exists... > > The closest would be the forth-coming Zend compiler... > > There's a Zend Optimizer (free) that might help in PHP4... > > You may run across documentation for a pre-tokenizer in php3 (php > --help). Don't bother with it. It doesn't make it faster: It doesn't > even work any more. The PHP team thought it would help speed things up to > tokenize (the first step of compilation) but it didn't really help, so > nobody keeps that code working. > -- > Richard Lynch | If this was worth $$$ to you, buy a CD > US Customer Support Director | from one of the artists listed here: > Zend Technologies USA | http://www.L-I-E.com/artists.htm > http://www.zend.com | (this has nothing to do with > Zend, duh!) > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net > For additional commands, e-mail: php-general-help@lists.php.net > To contact the list administrators, e-mail: php-list-admin@lists.php.net -- +-----------------------------+ |Rouvas Stathis | |University of Athens | |Department of Informatics | |http://www.di.uoa.gr/~rouvas | |rouvas@di.uoa.gr | +-----------------------------+