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

Re: [Xen-devel] [PATCH v3] xen-blkfront: dynamic configuration of per-vbd resources



On 27/07/16 04:21, Bob Liu wrote:
> The current VBD layer reserves buffer space for each attached device based on
> three statically configured settings which are read at boot time.
>  * max_indirect_segs: Maximum amount of segments.
>  * max_ring_page_order: Maximum order of pages to be used for the shared ring.
>  * max_queues: Maximum of queues(rings) to be used.

I think you want a single knob for "maximum number of pages in flight".
 This is much easier for an admin to relate to resource usage.

You could apply this limit without having to reconfigure, which would
simplify this patch quite a bit.

David

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
https://lists.xen.org/xen-devel

 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.