Slow operations +,-,*,/

[kormichu]

I noticed that the operations such as: +,-,*,/ are slower than in native php. For example, this code:

is 2x faster in php:

native PHP:

real       0m22.390s
user       0m13.020s
sys        0m0.270s

compiled:

real       0m42.287s
user       0m0.020s
sys        0m0.040s

But, the same code without this line:

$o += $x * $y * $z;

has better time for compiled code:

native php:

real       0m10.238s
user       0m9.320s
sys        0m0.170s

compiled:

real       0m6.433s
user       0m0.010s
sys        0m0.000s

[scottmac]

I enabled compiler optimizations today,

native php
real 0m18.184s
user 0m18.050s
sys 0m0.030s

HipHop:
real 0m12.211s
user 0m12.120s
sys 0m0.050`

[kormichu]

Great! My result:

native php

real    0m20.758s
user    0m5.330s
sys 0m0.320

HipHop:

real    0m14.434s
user    0m0.790s
sys 0m0.010s