Messages in this thread | | | Date | Sun, 27 Jan 2013 22:11:37 -0500 (EST) | Subject | Re: [PATCH] vhost-net: fall back to vmalloc if high-order allocation fails | From | David Miller <> |
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From: "Michael S. Tsirkin" <mst@redhat.com> Date: Wed, 23 Jan 2013 23:04:11 +0200
> Maybe we should try and reduce our memory usage, > I will look into this.
As has been pointed out, 32K of the size is from those iovecs in the queues.
The size of this structure is frankly offensive, and even if you add some levels of indirection even just one iovec chunk is 16K on 64-bit which is in my opinion still unacceptably large.
TCP sockets aren't even %25 the size of this beast. :-)
I'm not going to apply this vmalloc patch, because if I apply it the fundamental problem here just gets swept under the carpet even longer.
Sorry.
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