From: Ralf Baechle <ralf@linux-mips.org>
To: Dominic Sweetman <dom@mips.com>
Cc: madprops@gmx.net, linux-mips@linux-mips.org
Subject: Re: tlb magic
Date: Sat, 25 Jun 2005 16:41:54 +0200 [thread overview]
Message-ID: <20050625144154.GO6953@linux-mips.org> (raw)
In-Reply-To: <17084.61658.662352.432937@mips.com>
On Sat, Jun 25, 2005 at 06:51:22AM +0100, Dominic Sweetman wrote:
> Current Linux systems accept more computation in the TLB miss
> handler in order to use largely portable data structures for keeping
> page tables. You can always push at that trade-off...
Further tuning is on the Linux agenda. Right now we've got a rather fancy
implementation of a slow (relativly speaking) but portable algorithm.
The most useful useful trick of all will be increasing the pagesize to
grow beyond the small pagesize of 4k - for expected significant
performance benefits because the the TLB reach will increase but also
virtual aliases will go away on about anything but R4000SC returning us
to the promised lands of simplicity of cache managment :-)
Ralf
next prev parent reply other threads:[~2005-06-25 14:43 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-13 14:06 tlb magic Mad Props
2005-06-13 20:59 ` Dominic Sweetman
2005-06-14 16:00 ` madprops
2005-06-14 17:18 ` Ralf Baechle
2005-06-25 5:51 ` Dominic Sweetman
2005-06-25 14:41 ` Ralf Baechle [this message]
2005-06-27 12:04 ` Maciej W. Rozycki
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