On Wed, 23 Jul 2014 15:58:06 +0000 "Kavanagh, Mark B" <mark.b.kavanagh at intel.com> wrote:
> Hi, > > I build a switching application, which links against DPDK shared libraries; > when I run the application, I see throughput of X. I then build the > application again, except this time I link against DPDK shared libraries, > having modified the application's build parameters appropriately. In this > case, I see a performance drop of around .04%, which given the high > throughput of the application is significant. > > Is such performance degradation to be expected when using DPDK shared > libraries, and if not, are there any best-known methods for preventing > performance degradation, assuming that I may be constrained to using shared > libraries going forward? > > Thanks, > Mark > -------------------------------------------------------------- > Intel Shannon Limited > Registered in Ireland > Registered Office: Collinstown Industrial Park, Leixlip, County Kildare > Registered Number: 308263 > Business address: Dromore House, East Park, Shannon, Co. Clare > > This e-mail and any attachments may contain confidential material for the > sole use of the intended recipient(s). Any review or distribution by others > is strictly prohibited. If you are not the intended recipient, please contact > the sender and delete all copies. > Shared libraries live on different pages and cause more TLB misses.
