Re: Asynchronous read-ahead

Gerard Roudier (
Mon, 8 Apr 1996 22:34:55 +0000 (GMT)


On Mon, 8 Apr 1996, Matthias Sattler wrote:

> Hiho
> Just an idea.. If we want asynchronous read-ahead, shouldn't it be done best
> by a kernel-thread?

Process context switching is bad since TLB must be invalidated.
I am not a Linux Guru. However if the switching to a kernel-thread invalidate
TLB on mono-processor machine, then I donnot agree with your idea.
On the other hand, I think that it is easy to implement asynchronous read_ahead
as simple asynchronous IO requests.

Best regards, Gerard.