On 8/4/05, kalinga <kalinga@xxxxxxxxx> wrote: > On 8/4/05, Kristen G. Thorson <kthorson@xxxxxxxxxxxxxxxxxxxxxx> wrote: > > I can say from personal experience that gethostbyaddr() and > > gethostbyname() can seem almost randomly slow, depending on machine, OS, > > software, who knows. I'm not smart enough to figure out the reason why > > it can vary so much on machines with nearly the same configuration, but > > I can tell you that it works perfectly fast most of the time. Then > > there's that other 5% where something makes it slow as molasses. > > > > I have two machines that are so similar it's not funny, but > > gethostbyname() takes 1/10 s on one, and 5 s on the other. I have yet > > to figure out what's the difference between them that causing this. if you are quering a external host, the bad network conditions may cause delay in results. if your server is connected to a heavily loaded hub/ cheap switch, or the target hosts DNS servers are poorly configured/ slow in responce it adds further delay to your result. try dig/ nslookup on your server for the target hostname/address, you may experience the same delay as with the php function. ~viraj. > > > > > > kgt > > > > > > > > Dotan Cohen wrote: > > > > >Hi all, I just discovered the gethostbyaddr() function. By reading the > > >user contributed notes, I get the impression that either this function > > >may cause performance problems, or a user-contributed function based > > >upon it may be slow. So, is gethostbyaddr() slow? Is it dangerous? > > >Thanks! > > > > > >Dotan Cohen > > >http://lyricslist.com/lyrics/artist_albums/56/bangles.php > > >The Bangles Song Lyrics > > > > > > > > > > > > > -- > > 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
