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From: Matthew Wilcox <willy@infradead.org>
To: Jim Mattson <jmattson@google.com>
Cc: Wanpeng Li <kernellwp@gmail.com>, Marc Orr <marcorr@google.com>,
	kvm <kvm@vger.kernel.org>, David Rientjes <rientjes@google.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
	linux-mm <linux-mm@kvack.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Radim Krcmar <rkrcmar@redhat.com>,
	Sean Christopherson <sean.j.christopherson@intel.com>
Subject: Re: [kvm PATCH v4 0/2] use vmalloc to allocate vmx vcpus
Date: Mon, 29 Oct 2018 09:48:13 -0700	[thread overview]
Message-ID: <20181029164813.GH28520@bombadil.infradead.org> (raw)
In-Reply-To: <CALMp9eSAP6=3MOjcexZsrtGjg4z6ULjhaJZBOZCkpFKganKfhA@mail.gmail.com>

On Mon, Oct 29, 2018 at 09:25:05AM -0700, Jim Mattson wrote:
> On Sun, Oct 28, 2018 at 6:58 PM, Wanpeng Li <kernellwp@gmail.com> wrote:
> > We have not yet encounter memory is too fragmented to allocate kvm
> > related metadata in our overcommit pools, is this true requirement
> > from the product environments?
> 
> Yes.

Are your logs granular enough to determine if turning this into an
order-2 allocation (by splitting out "struct fpu" allocations) will be
sufficient to resolve your problem, or do we need to turn it into an
order-1 or vmalloc allocation to achieve your production goals?

  reply	other threads:[~2018-10-29 16:48 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-26  7:58 [kvm PATCH v4 0/2] use vmalloc to allocate vmx vcpus Marc Orr
2018-10-26  7:58 ` [kvm PATCH v4 1/2] kvm: vmx: refactor vmx_msrs struct for vmalloc Marc Orr
2018-10-26 11:02   ` Sean Christopherson
2018-10-26  7:59 ` [kvm PATCH v4 2/2] kvm: vmx: use vmalloc() to allocate vcpus Marc Orr
2018-10-26 12:29 ` [kvm PATCH v4 0/2] use vmalloc to allocate vmx vcpus Matthew Wilcox
2018-10-26 14:45   ` Matthew Wilcox
2018-10-26 14:49     ` Dave Hansen
2018-10-31 13:06       ` Marc Orr
2018-10-29  1:58 ` Wanpeng Li
2018-10-29 16:25   ` Jim Mattson
2018-10-29 16:48     ` Matthew Wilcox [this message]
2018-10-29 18:12       ` Jim Mattson
2018-10-29 19:16         ` Marc Orr
2018-10-29 19:22           ` Marc Orr
2018-10-31 13:17       ` Marc Orr
2018-10-31 13:27         ` Matthew Wilcox
2018-10-31 13:48           ` Marc Orr
2018-10-31 14:21             ` Matthew Wilcox
2018-10-31 21:19               ` Marc Orr

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