Re: [Xen-users] xen gnttab problem

[Tomas Mozes <hydrapolic@xxxxxxxxx>]

That's a good question I don't have answer for (the devs should answer this one). This page https://www.novell.com/support/kb/doc.php?id=7018590 even recommends 256 and it works for me fine, never observed a hang after setting it to this value. However the maximum gnttab I've seen was around 50-60, so 128 is probably enough. This of course depends on your usage, so it should be monitored and adjusted as needed. I think debian wanted to raise it to 64.

Tomas

On Mon, Jul 2, 2018 at 9:15 AM, Christoph <mangel@xxxxxx> wrote:

Works... Thx a lot!

One question more: does it have disadvantages if I set the max_grant_farmes to high? (I have it at 128 now. Should I look what it uses max and set it corresponding to it?

Am 2018-06-30 13:43, schrieb Tomas Mozes:

Hello,
if it's Xen version 4.10, then you need to set it in the domU
configuration via max_grant_frames parameter. In older Xen it's a
kernel parameter set globally.

Tomas

On Sat, Jun 30, 2018 at 12:14 PM, Christoph <mangel@xxxxxx> wrote:

--
------
Greetz

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-users