From: Hyeonggon Yoo <42.hyeyoo@gmail.com>
To: John Garry <john.garry@huawei.com>
Cc: Matthew Wilcox <willy@infradead.org>,
Christoph Lameter <cl@linux.com>,
David Rientjes <rientjes@google.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Andrew Morton <akpm@linux-foundation.org>,
Vlastimil Babka <vbabka@suse.cz>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Jens Axboe <axboe@kernel.dk>
Subject: Re: [RFC PATCH] Introducing lockless cache built on top of slab allocator
Date: Mon, 20 Sep 2021 15:50:10 +0000 [thread overview]
Message-ID: <20210920155010.GA31923@kvm.asia-northeast3-a.c.our-ratio-313919.internal> (raw)
In-Reply-To: <56f30136-23ce-dd73-705c-4e1326768c9d@huawei.com>
On Mon, Sep 20, 2021 at 03:41:16PM +0100, John Garry wrote:
> On 20/09/2021 02:53, Matthew Wilcox wrote:
> > On Mon, Sep 20, 2021 at 01:09:38AM +0000, Hyeonggon Yoo wrote:
> > > Hello Matthew, Thanks to give me a comment! I appreciate it.
> > >
> > > On Sun, Sep 19, 2021 at 08:17:44PM +0100, Matthew Wilcox wrote:
> > > > On Sun, Sep 19, 2021 at 04:42:39PM +0000, Hyeonggon Yoo wrote:
> > > > > It is just simple proof of concept, and not ready for submission yet.
> > > > > There can be wrong code (like wrong gfp flags, or wrong error handling,
> > > > > etc) it is just simple proof of concept. I want comment from you.
> > > >
> > > > Have you read:
> > > >
> > > > https://www.usenix.org/legacy/event/usenix01/full_papers/bonwick/bonwick_html/
> > > > The relevant part of that paper is section 3, magazines. We should have
> > > > low and high water marks for number of objects
> > >
>
> In case unknown, jfyi there is an implementation of this in
> drivers/iommu/iova.c
Thanks for good information. I'll take a look at it!
Thanks,
Hyeonggon
> Thanks,
> John
>
> > > I haven't read that before, but after reading it seems not different from
> > > SLAB's percpu queuing.
> > > > and we should allocate
> > > > from / free to the slab allocator in batches. Slab has bulk alloc/free
> > > > APIs already.
> > > >
prev parent reply other threads:[~2021-09-20 15:50 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-19 16:42 Hyeonggon Yoo
2021-09-19 19:17 ` Matthew Wilcox
2021-09-20 1:09 ` Hyeonggon Yoo
2021-09-20 1:53 ` Matthew Wilcox
2021-09-20 2:54 ` Hyeonggon Yoo
2021-09-20 9:07 ` Vlastimil Babka
2021-09-20 11:55 ` Hyeonggon Yoo
2021-09-20 12:02 ` Vlastimil Babka
2021-09-20 15:55 ` Hyeonggon Yoo
2021-09-20 14:41 ` John Garry
2021-09-20 15:50 ` Hyeonggon Yoo [this message]
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