On 7/16/05, rouvas <rouvas@xxxxxxxxx> wrote: > Hi Liang, > > trying to get conclusive results with browsers is futile. Use a command-line > tool (like curl) to invoke the web pages and get the results. Or you can use Although personally I think that telnet-to-port-80 would be a better idea, in this case when you're trying to check what is outputted first. Either that or a TCP sniffer. I also agree with the microtime() suggestion, mentioned below. It will get you around the problem of caches - which is a major problem for something like this. I'm not sure what the situation with apache is regarding caches. > PHP's own function to query the web server and do your own timing with > microtime() function or another suitable for your purposes. > > In order for flush() results to reach you (in a browser) they have to pass > from multiple caches like PHP's, Apache's, the occasional proxies and finally > the browser's own cache. So you cannot get dependaple results measuring times > or responses from your browser. Try the methods above. > > And a final tip... When Rasmus speaks, you don't question him:-) Period. Unless you didn't understand what he said and want clarification. > > Have a nice day, > -Stathis > > On Saturday 16 July 2005 04:41, Liang ZHONG wrote: > > Hi Rasmus, > > > > You are right. It was the problem with the browser. I used Mozilla Firefox > > to try, and do not know what consideration it just serialized the identical > > url http requests. I then turned to use 2 IE 6.0 windows, 2 tabs within > > Maxthon browser, one IE windows and one Firefox, to test. Then I got the > > conclusion as you told. Thank you very much for the help. > > > > BTW, I could not get the flush() work, neither flush() with ob_flush(). I > > tried almost all methods mentioned in the followed posts under > > http://us2.php.net/flush, but none of them can really pushed the buffer > > out. The site is configurated with http://liang.ns2user.info/php/info.php > > on Red head, kernel 2.4.29. What can I do to get it work? > > > > Thank you again. > > > > >Liang ZHONG wrote: > > > > Could you please explain it a little bit more? > > > > I did test this way. > > > > > > > > The code is the same for a.php and b.php > > > > <?php > > > > > > > > sleep(20); > > > > print Done. <br />"; > > > > > > > > ?> > > > > > > > > I place request from 2 browser windows. > > > > First time, I placed with http://baseURL/a.php with both 2 browsers, > > > > starting times have 5 second interval. Then the first "Done" shows > > > > after 20 seconds and the second "Done" shows 20 seconds after the first > > > > > >"Done". > > > > > > > Then, I placed one browser with http://baseURL/a.php and the second one > > > > with http://baseURL/b.php, with starting time of 5 second interval. > > > > Then I got the first browser showing "Done" after 20 seconds and 5 > > > > seconds later, the second browser showed "Done", too. > > > > > > > > Thus it seems that the apache can spoon out multiple php interpreters > > > > responding to http requests, while php can not deal with concurrent > > > > process from one program. > > > > > >I have no idea what you did to configure it this way. I wouldn't even > > >know how to do that if you asked me to. As far as PHP is concerned it > > >has no idea which processes are handling which script files at any one > > >point. So whether you request a.php and b.php at the same time or a.php > > >twice at the same time, it makes absolutely no difference to PHP. If > > >you are really seeing this, then the limitation is in your browser or > > >somewhere else. Try making a.php output stuff so it becomes easier to > > >see. As in for($i=0;$i<20;$i++) { echo $i; flush(); sleep(1); } > > >You should see the counter start counting as soon as you hit the page. > > > > > >-Rasmus > > > > > >-- > > >PHP General Mailing List (http://www.php.net/) > > >To unsubscribe, visit: http://www.php.net/unsub.php > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
