Messages in this thread |  | | | Date | Thu, 30 Oct 2008 21:40:24 +0300 | | From | Evgeniy Polyakov <> | | Subject | Re: [tbench regression fixes]: digging out smelly deadmen. |
| |
On Thu, Oct 30, 2008 at 11:15:26AM -0700, Stephen Hemminger (shemminger@vyatta.com) wrote: > Has anyone looked into the impact of port randomization on this benchmark. > If it is generating lots of sockets quickly there could be an impact: > * port randomization causes available port space to get filled non-uniformly > and what was once a linear scan may have to walk over existing ports. > (This could be improved by a hint bitmap) > > * port randomization adds at least one modulus operation per socket > creation. This could be optimized by using a loop instead.
In this benchmark only two sockets are created per client for the whole run, so this should not have any impact on performance.
-- Evgeniy Polyakov
|  |