Re: [Xen-devel] [PATCH v2 07/10] libxl: event: poller pipe optimisation

2020-01-17 Thread Ian Jackson
George Dunlap writes ("Re: [PATCH v2 07/10] libxl: event: poller pipe optimisation"): > On 1/13/20 5:08 PM, Ian Jackson wrote: > > squash! libxl: event: poller pipe optimisation > > Stray "squash" detrius. Oops. > Other than that: > > Reviewed-by: George Dunlap Thanks, fixed. Ian.

Re: [Xen-devel] [PATCH v2 07/10] libxl: event: poller pipe optimisation

2020-01-17 Thread George Dunlap
On 1/13/20 5:08 PM, Ian Jackson wrote: > Track in userland whether the poller pipe is nonempty. This saves us > writing many many bytes to the pipe if nothing ever reads them. > > This is going to be relevant in a moment, where we are going to create > a situation where this will happen quite a l

[Xen-devel] [PATCH v2 07/10] libxl: event: poller pipe optimisation

2020-01-13 Thread Ian Jackson
Track in userland whether the poller pipe is nonempty. This saves us writing many many bytes to the pipe if nothing ever reads them. This is going to be relevant in a moment, where we are going to create a situation where this will happen quite a lot. Signed-off-by: Ian Jackson squash! libxl: