On Wed, 2013-06-05 at 16:41 +0300, Eliezer Tamir wrote: > On 05/06/2013 16:30, Eric Dumazet wrote:
> > I am a bit uneasy with this one, because an applicatio polling() on one > > thousand file descriptors using select()/poll(), will call sk_poll_ll() > > one thousand times. > > But we call sk_poll_ll() with nonblock set, so it will only test once > for each socket and not loop. > > I think this is not as bad as it sounds. > We still honor the time limit on how long to poll. We still call ndo_ll_poll() a thousand times, and probably do a spinlock/unlock a thousand times in the driver. I would definitely be convinced if you give us some performance numbers of a poll() on a thousand tcp sockets for example. See my following mail about sk_poll_ll() ------------------------------------------------------------------------------ How ServiceNow helps IT people transform IT departments: 1. A cloud service to automate IT design, transition and operations 2. Dashboards that offer high-level views of enterprise services 3. A single system of record for all IT processes http://p.sf.net/sfu/servicenow-d2d-j _______________________________________________ E1000-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
