From: "Michael S. Tsirkin" <mst@redhat.com>
To: Alexander Duyck <alexander.duyck@gmail.com>
Cc: David Hildenbrand <david@redhat.com>,
Nitesh Narayan Lal <nitesh@redhat.com>,
kvm list <kvm@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
linux-mm <linux-mm@kvack.org>,
Paolo Bonzini <pbonzini@redhat.com>,
lcapitulino@redhat.com, pagupta@redhat.com,
Yang Zhang <yang.zhang.wz@gmail.com>,
Rik van Riel <riel@surriel.com>,
dodgen@google.com, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
dhildenb@redhat.com, Andrea Arcangeli <aarcange@redhat.com>,
Dave Hansen <dave.hansen@intel.com>
Subject: Re: On guest free page hinting and OOM
Date: Tue, 2 Apr 2019 13:53:12 -0400 [thread overview]
Message-ID: <20190402134722-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <CAKgT0UdHA66z1j=3H06AfgtiF4ThFdXwQ6i8p1MszdL2bRHeZQ@mail.gmail.com>
On Tue, Apr 02, 2019 at 10:45:43AM -0700, Alexander Duyck wrote:
> We went through this back in the day with
> networking. Adding more buffers is not the solution. The solution is
> to have a way to gracefully recover and keep our hinting latency and
> buffer bloat to a minimum.
That's an interesting approach, I think that things that end up working
well are NAPI (asychronous notifications), limited batching, XDP (big
aligned buffers) and BQL (accounting). Is that your perspective too?
--
MST
next prev parent reply other threads:[~2019-04-02 17:53 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-29 13:26 On guest free page hinting and OOM Michael S. Tsirkin
2019-03-29 14:24 ` David Hildenbrand
2019-03-29 15:08 ` Michael S. Tsirkin
2019-03-29 15:37 ` David Hildenbrand
2019-03-29 15:45 ` David Hildenbrand
2019-03-29 16:51 ` Michael S. Tsirkin
2019-04-01 8:17 ` David Hildenbrand
2019-04-01 13:24 ` Michael S. Tsirkin
2019-04-01 14:09 ` David Hildenbrand
2019-04-01 14:11 ` David Hildenbrand
2019-04-01 14:47 ` Michael S. Tsirkin
2019-04-01 14:54 ` David Hildenbrand
2019-04-01 20:56 ` Alexander Duyck
2019-04-02 7:42 ` David Hildenbrand
2019-04-02 15:04 ` Alexander Duyck
2019-04-02 15:25 ` Michael S. Tsirkin
2019-04-02 15:57 ` David Hildenbrand
2019-04-02 16:18 ` Alexander Duyck
2019-04-02 17:08 ` David Hildenbrand
2019-04-02 17:45 ` Alexander Duyck
2019-04-02 17:53 ` Michael S. Tsirkin [this message]
2019-04-02 20:32 ` Alexander Duyck
2019-04-02 18:21 ` David Hildenbrand
2019-04-02 19:49 ` Michael S. Tsirkin
2019-04-02 20:32 ` David Hildenbrand
2019-04-02 15:55 ` David Hildenbrand
2019-04-02 17:30 ` Alexander Duyck
2019-04-02 18:53 ` David Hildenbrand
2019-04-02 23:43 ` Alexander Duyck
2019-04-03 19:43 ` David Hildenbrand
2019-04-04 13:28 ` Michael S. Tsirkin
2019-04-02 16:19 ` David Hildenbrand
2019-04-01 14:45 ` Michael S. Tsirkin
2019-03-29 16:09 ` Michael S. Tsirkin
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