[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-block] [Qemu-devel] [PATCH] qemu-options: explain disk I/O thr

From: Eric Blake
Subject: Re: [Qemu-block] [Qemu-devel] [PATCH] qemu-options: explain disk I/O throttling options
Date: Mon, 20 Feb 2017 13:40:21 -0600
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.7.0

On 02/20/2017 10:52 AM, Stefan Hajnoczi wrote:
> The disk I/O throttling options have been listed for a long time but
> never explained on the QEMU man page.
> Suggested-by: Nini Gu <address@hidden>
> Cc: Alberto Garcia <address@hidden>
> Signed-off-by: Stefan Hajnoczi <address@hidden>
> ---
>  qemu-options.hx | 25 +++++++++++++++++++++++++
>  1 file changed, 25 insertions(+)
> diff --git a/qemu-options.hx b/qemu-options.hx
> index 5633d39..b2254cc 100644
> --- a/qemu-options.hx
> +++ b/qemu-options.hx
> @@ -587,6 +587,31 @@ file sectors into the image file.
>  conversion of plain zero writes by the OS to driver specific optimized
>  zero write commands. You may even choose "unmap" if @var{discard} is set
>  to "unmap" to allow a zero write to be converted to an UNMAP operation.
> address@hidden address@hidden,address@hidden,address@hidden
> +Specify bandwidth throttling limits in bytes per second, either for all 
> request
> +types or for reads or writes only.  Values must be larger than the maximum
> +request size to avoid timeouts or hangs in the guest.  At minimum use 2 MB/s

s/At minimum/At a minimum,/

With that tweak,
Reviewed-by: Eric Blake <address@hidden>

Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

Attachment: signature.asc
Description: OpenPGP digital signature

reply via email to

[Prev in Thread] Current Thread [Next in Thread]