Re: Linux 2.4.19ac3rc3 on IBM x330/x340 SMP - "ps" time skew

From: Benjamin Herrenschmidt (
Date: Thu Aug 01 2002 - 03:49:19 EST

>2.2.xx i386 as shipped by Linus
>2.4.xx i386 with HZ modified
>Come on, write the code if you think it's so easy.
>You get bonus points for supporting 2.0.xx kernels
>and the IA-64 kernel with that same executable.
>Maybe you think I should tell these people to go to Hell?
>In that case, what about the Alpha systems that ran HZ at
>1200 instead of 1024?

Isn't HZ value passed down to userland via the ELF aux table ?

(At least the "userland visible" one, which isn't the kernel
internal one in recent 2.5's, oh well...)

That's a reason I don't understand why Linus did this separation
between "userland visibl" HZ and kernel internal HZ. I would have
just changed the kernel HZ and let userland be fixed to use the
value passed via the aux table instead of hard coding it.


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

This archive was generated by hypermail 2b29 : Wed Aug 07 2002 - 22:00:14 EST