Re: Linux and Apache performance, Update

Andi Kleen (ak-uu@muc.de)
03 Jun 1999 18:53:54 +0200


dank@alumni.caltech.edu (Dan Kegel) writes:

> Juergen,
> thanks for keeping us informed!
>
> First:
> I saw one possible problem straight off:
> you compiled Apache with
> -D USE_FCNTL_SERIALIZED_ACCEPT
> To get the benefit of the wake-one kernel patches,
> you have to compile instead with
> -DSINGLE_LISTEN_UNSERIALIZED_ACCEPT

In the multiple interfaces case apache has to handle
multiple listen sockets with poll - and the current
thundering herd fix doesn't work in that situation because
that would break old programs.

It doesn't all look too well - but in half a year this
will hopefully be very different.

-Andi

-- 
This is like TV. I don't like TV.

- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/