Regards,
-Gonglei
> -Original Message-
> From: Paolo Bonzini [mailto:pbonz...@redhat.com]
> Sent: Thursday, February 04, 2016 6:18 PM
> To: Gonglei (Arei); qemu-devel@nongnu.org
> Cc: cornelia.h...@de.ibm.com; m...@redhat.com
> Subject: Re: [PATCH 07/10] virtio: combine the read of a
On 04/02/2016 08:48, Gonglei (Arei) wrote:
> 11.44% qemu-kvm [.] memory_region_find
> 6.31% qemu-kvm [.] qemu_get_ram_ptr
> 4.61% libpthread-2.19.so [.] __pthread_mutex_unlock_usercnt
> 3.54% qemu-kvm [.] qemu_ram_addr_from_host
>
Hi Paolo,
> From: Paolo Bonzini [mailto:paolo.bonz...@gmail.com] On Behalf Of Paolo
> Bonzini
>
> On 03/02/2016 13:34, Gonglei (Arei) wrote:
> > Hi,
> >
> >> Subject: [Qemu-devel] [PATCH 07/10] virtio: combine the read of a
> >> descriptor
> >&g
On 03/02/2016 13:34, Gonglei (Arei) wrote:
> Hi,
>
>> Subject: [Qemu-devel] [PATCH 07/10] virtio: combine the read of a descriptor
>>
>> Compared to vring, virtio has a performance penalty of 10%. Fix it
>> by combining all the reads for a descriptor in a sin
Hi,
> Subject: [Qemu-devel] [PATCH 07/10] virtio: combine the read of a descriptor
>
> Compared to vring, virtio has a performance penalty of 10%. Fix it
> by combining all the reads for a descriptor in a single address_space_read
> call. This also simplifies the code nicely.
&
Compared to vring, virtio has a performance penalty of 10%. Fix it
by combining all the reads for a descriptor in a single address_space_read
call. This also simplifies the code nicely.
Reviewed-by: Cornelia Huck
Signed-off-by: Paolo Bonzini
---
hw/virtio/virtio.c | 86 ++-
On Fri, 15 Jan 2016 13:41:55 +0100
Paolo Bonzini wrote:
> Compared to vring, virtio has a performance penalty of 10%. Fix it
> by combining all the reads for a descriptor in a single address_space_read
> call. This also simplifies the code nicely.
>
> Signed-off-by: Paolo Bonzini
> ---
> hw/
Compared to vring, virtio has a performance penalty of 10%. Fix it
by combining all the reads for a descriptor in a single address_space_read
call. This also simplifies the code nicely.
Signed-off-by: Paolo Bonzini
---
hw/virtio/virtio.c | 86 ++-
