127.0.0.1 vs localhost

bmxakias · 12-18-2017, 01:30 PM

Hello

Reading on the net i found that localhost (FOR LINUX) it will be a bit faster as it uses sockets but in practice some times it seems 127.0.0.1 to perform better for some users

What do you use on your php config files to connect to the database?

What's your experience about this?

Thank you

Timothy Miller · 12-18-2017, 01:38 PM

I use localhost, but only because it's easier for me to type, I've never really tested to see a performance difference.

!!! · 12-18-2017, 01:47 PM

Code:

strace ping -c1 localhost 2>&1 | wc -l
132
strace ping -c1 127.0.0.1 2>&1 | wc -l
88

jefro · 12-18-2017, 02:17 PM

I too would think that an uncached name would have to look up localhost in hosts file. The faster should usually be proper IP address.

Habitual · 12-18-2017, 02:56 PM

Me? I rely on the instructions in /etc/hosts

Code:

##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting.  Do not change this entry.
##
127.0.0.1	localhost

A co-worker has made "adjustments" in the past (using "Poor Man's DNS" for context)
I yell, he cries. I fix.

MTAs complain a lot if there isn't one set.

Good Luck.

TenTenths · 12-19-2017, 04:06 AM

Quote:

Originally Posted by bmxakias

Reading on the net

Always a dangerous thing!

Quote:

Originally Posted by bmxakias

i found that localhost (FOR LINUX) it will be a bit faster as it uses sockets but in practice some times it seems 127.0.0.1 to perform better for some users

What do you use on your php config files to connect to the database?

What's your experience about this?

Thank you

On the VERY RARE occasions where I've had the database on the same server as php/apache I've tended to use localhost.

In general though I tend to split the web and database functionality across multiple virtual servers.