On Wed, Sep 24, 2014 at 11:31:44AM -0700, Jarno Rajahalme wrote:
> These makes cmap_find 10% faster on GCC 4.7 (-O2 -g).
>
> Signed-off-by: Jarno Rajahalme <[email protected]>
I'm surprised it makes so much difference!
What if we additionally change:
if (OVS_UNLIKELY(counter_changed(b1, c1))) {
goto retry;
}
if (node) {
return node;
}
to this?
if (node) {
if (OVS_UNLIKELY(counter_changed(b1, c1))) {
goto retry;
}
return node;
}
I can see an argument that it would help, and a different one that it
would hurt.
Either way:
Acked-by: Ben Pfaff <[email protected]>
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