On Wed, Mar 16, 2016 at 7:23 PM, Dennis Dalessandro <dennis.dalessandro@xxxxxxxxx> wrote: > On Wed, Mar 16, 2016 at 05:53:37PM +0200, Or Gerlitz wrote: >> The cache comes to amortize the cost of pin/unpin and such, correct? this means >> that over longs runs, if there's nice locality of the same process >> using the same pages, you pay the register/pin cost once, later use lazy >> de-registration/pinning, and only do that >> when MMU notifier tells you this is a must, or under some eviction policy. >> Since the cost is amortized, the system calls over-head should be negligible >> (also, the same system call can be used to evict X and register Y), do you >> have performance data that shows otherwise? > I don't personally have the data but will check with some folks here. Dennis, didn't see a reply from you here... Doug, as this is still review discussion in progress, I guess you'll wait with finalizing the talks before adding this into your 2nd 4.6 pull request? Or. -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
