Re: [PATCH]IPC locks breaking down with RCU

From: mingming cao (cmm@us.ibm.com)
Date: Mon Oct 21 2002 - 15:34:01 EST


Hugh Dickins wrote:
>
> In the original design, Mingming nicely split up the locks (greatly
> reducing contention), but had them in an array (causing lots of bounce,
> I believe):
I am not an expert of cacheline bouncing, so please point me if I miss
something. I wonder if we could reduce the bounce even with current
design (the spinlock is in the data it protects). We have to go through
that array anyway to get access to the data (and the spinlock).

> I'm resisting a return to that design.
OK, I will back to original design.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Wed Oct 23 2002 - 22:00:55 EST