On 03/09/2017 02:16 PM, Sagi Grimberg wrote: > It doesn't really make sense to do selective polling > because we never care about specific IOs. Non selective > polling can actually help by doing some useful work > while we're submitting a command. > > We ask for a batch of (magic) 4 completions which looks > like a decent network<->backend proportion, if less are > available we'll see less. > > Signed-off-by: Sagi Grimberg <sagi@xxxxxxxxxxx> > --- Just out of curiosity, how did you come up with the magic 4? Thanks, Johannes -- Johannes Thumshirn Storage jthumshirn@xxxxxxx +49 911 74053 689 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg) Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850
