Re: lockless poll() (was Re: namei() query)

From: Linus Torvalds (
Date: Mon Apr 24 2000 - 21:12:24 EST

On Mon, 24 Apr 2000, dean gaudet wrote:
> here is a patch against apache-1.3 which forces it to align the length of
> its headers to a 32-byte boundary. if your benchmark is requesting
> objects greater than ~4k in size this will cause apache to generate
> writev()s such as:


The intel guys already did an experimental (and fairly ugly) patch to make
the kernel try to semi-pad the destination by selecting specific sizes for
the packets sent out over TCP. They claimed a 3% speedup in specweb (or
something) from that. The argument from Dave and Alan was that it should
be done from within the web-server.


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
Please read the FAQ at

This archive was generated by hypermail 2b29 : Sun Apr 30 2000 - 21:00:08 EST