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: Sat, 5 Sep 2020 02:58:18 +0000 From: "Brown, Aaron F" <aaron.f.brown@...el.com> To: Björn Töpel <bjorn.topel@...il.com>, "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org> CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org>, "bpf@...r.kernel.org" <bpf@...r.kernel.org>, "Topel, Bjorn" <bjorn.topel@...el.com>, "Karlsson, Magnus" <magnus.karlsson@...el.com>, "kuba@...nel.org" <kuba@...nel.org> Subject: RE: [Intel-wired-lan] [PATCH net-next v2 1/3] i40e, xsk: remove HW descriptor prefetch in AF_XDP path > From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf Of > Björn Töpel > Sent: Tuesday, August 25, 2020 4:36 AM > To: intel-wired-lan@...ts.osuosl.org > Cc: netdev@...r.kernel.org; bpf@...r.kernel.org; Topel, Bjorn > <bjorn.topel@...el.com>; Karlsson, Magnus <magnus.karlsson@...el.com>; > kuba@...nel.org > Subject: [Intel-wired-lan] [PATCH net-next v2 1/3] i40e, xsk: remove HW > descriptor prefetch in AF_XDP path > > From: Björn Töpel <bjorn.topel@...el.com> > > The software prefetching of HW descriptors has a negative impact on > the performance. Therefore, it is now removed. > > Performance for the rx_drop benchmark increased with 2%. > > Signed-off-by: Björn Töpel <bjorn.topel@...el.com> > --- > drivers/net/ethernet/intel/i40e/i40e_txrx.c | 13 +++++++++++++ > drivers/net/ethernet/intel/i40e/i40e_txrx_common.h | 13 ------------- > drivers/net/ethernet/intel/i40e/i40e_xsk.c | 12 ++++++++++++ > 3 files changed, 25 insertions(+), 13 deletions(-) > Tested-by: Aaron Brown <aaron.f.brown@...el.com>
Powered by blists - more mailing lists