Speed vs. Security

xTango · n00b Joined: 11 Jun 2002 Posts: 15 Location: Argentina

Hello there,

Does anyone know if there is any danger in using the CFLAG -fomit-frame-pointer on a server?
I use it on my workstations and it does make a difference, so I would like to use it on my servers to speed up PHP (if there are no security issues involved).

Thanks in advance.

Regards,
Ernesto

El_Presidente_Pufferfish · Veteran Joined: 11 Jul 2002 Posts: 1179 Location: Seattle

i dont see how a cpu optimisation can cause a security issue, but php compiles with lacking security

TripKnot · Apprentice Joined: 29 May 2002 Posts: 213

There was a post recently about -funroll-all-loops which actually caused some major problems like some app accepting any password for login. -funroll-all-loops is a stupid optimization anyways, -funroll-loops is better and I'm not sure if the problem mentioned persists with this. But I'haven't heard anyhting bad about -fomit-frame-pointer.

pilla · Posted: Wed Sep 25, 2002 11:16 pm Post subject:

-fframe-omit-pointer frees a register which is used do debug programs -- so the compiler has more registers to schedule things.

In some cases, you may experience some applications crashing. I don't think it is advisable to use it in a server environment (I wouldn't).