From: "K. Y. Srinivasan" <kys@xxxxxxxxxxxxx> Date: Wed, 27 May 2015 13:16:57 -0700 > The current algorithm for deciding on the number of VRSS channels is > not optimal since we open up the min of number of CPUs online and the > number of VRSS channels the host is offering. So on a 32 VCPU guest > we could potentially open 32 VRSS subchannels. Experimentation has > shown that it is best to limit the number of VRSS channels to the number > of CPUs within a NUMA node. > > Here is the new algorithm for deciding on the number of sub-channels we > would open up: > 1) Pick the minimum of what the host is offering and what the driver > in the guest is specifying as the default value. > 2) Pick the minimum of (1) and the numbers of CPUs in the NUMA > node the primary channel is bound to. > > > Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx> Applied, thanks. _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
