linux-kernel - Re: Is it possible to implement the per-node page cache for programs/libraries?

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Message-Id: <1630652670.aplcvu6g23.astroid@bobo.none>
Date:   Fri, 03 Sep 2021 17:10:31 +1000
From:   Nicholas Piggin <npiggin@...il.com>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org,
        Shijie Huang <shijie@...eremail.onmicrosoft.com>,
        song.bao.hua@...ilicon.com, torvalds@...ux-foundation.org,
        viro@...iv.linux.org.uk, Frank Wang <zwang@...erecomputing.com>
Subject: Re: Is it possible to implement the per-node page cache for
 programs/libraries?

Excerpts from Matthew Wilcox's message of September 2, 2021 8:17 pm:
> On Thu, Sep 02, 2021 at 01:25:36PM +1000, Nicholas Piggin wrote:
>> > I have been thinking about this a bit; one of our internal performance
>> > teams flagged the potential performance win to me a few months ago.
>> > I don't have a concrete design for text replication yet; there have been
>> > various attempts over the years, but none were particularly compelling.
>> 
>> What was not compelling about it?
> 
> It wasn't merged, so clearly it wasn't compelling enough?

Ha ha. It sounded like you had some reasons you didn't find it 
particularly compelling :P

> 
>> https://lists.openwall.net/linux-kernel/2007/07/27/112
>> 
>> What are the other attempts?
> 
> I found one from Dave Hansen in 2003:
> 
> https://lwn.net/Articles/45082/
> 

Huh interesting. I'd be surprised if I didn't see it go by at the time.

Thanks,
Nick