lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Sun, 29 Jan 2017 21:55:23 -0500 From: Boris Ostrovsky <boris.ostrovsky@...cle.com> To: Juergen Gross <jgross@...e.com>, linux-kernel@...r.kernel.org, xen-devel@...ts.xenproject.org, netdev@...r.kernel.org Cc: wei.liu2@...rix.com, paul.durrant@...rix.com Subject: Re: [PATCH 0/2] xen/net: limit number of tx/rx queues On 01/10/2017 08:32 AM, Juergen Gross wrote: > The Xen network frontend/backend supports multiple tx/rx queues for one > virtual interface. The number of queues supported by the backend is > set to the number of cpus of the backend driver domain (usually dom0) > and the number of queues requested by the frontend is limited by the > number of vcpus of the related guest. > > On large systems this can lead to ridiculous large number of queues > exhausting the required number of grant pages rather quick. > > To avoid this limit the default maximum on both sides to 8. Both > frontend and backend maximum can be individually tuned via module > parameters. > > Juergen Gross (2): > xen/netfront: set default upper limit of tx/rx queues to 8 > xen/netback: set default upper limit of tx/rx queues to 8 > > drivers/net/xen-netback/netback.c | 6 ++++-- > drivers/net/xen-netfront.c | 6 ++++-- > 2 files changed, 8 insertions(+), 4 deletions(-) > Applied to for-linus-4.11 -boris
Powered by blists - more mailing lists