RE: [PATCH v6] Drivers: hv: vmbus: Expose monitor data only when monitor pages are used

2019-03-21 Thread Michael Kelley
From: Sasha Levin Sent: Wednesday, March 20, 2019 8:57 PM > > I've queued it up for hyperv-fixes, thanks Kimberly. > > Should this go in stable as well? > My take: these changes lean more toward being a "clean up" rather than fixing a problem that has significant impact. The data in the

Re: [PATCH v6] Drivers: hv: vmbus: Expose monitor data only when monitor pages are used

2019-03-20 Thread Sasha Levin
On Tue, Mar 19, 2019 at 12:04:01AM -0400, Kimberly Brown wrote: There are two methods for signaling the host: the monitor page mechanism and hypercalls. The monitor page mechanism is used by performance critical channels (storage, networking, etc.) because it provides improved throughput.

RE: [PATCH v6] Drivers: hv: vmbus: Expose monitor data only when monitor pages are used

2019-03-20 Thread Michael Kelley
From: Kimberly Brown Sent: Monday, March 18, 2019 9:04 PM > > There are two methods for signaling the host: the monitor page mechanism > and hypercalls. The monitor page mechanism is used by performance > critical channels (storage, networking, etc.) because it provides > improved throughput.

Re: [PATCH v6] Drivers: hv: vmbus: Expose monitor data only when monitor pages are used

2019-03-19 Thread Greg KH
On Tue, Mar 19, 2019 at 12:04:01AM -0400, Kimberly Brown wrote: > There are two methods for signaling the host: the monitor page mechanism > and hypercalls. The monitor page mechanism is used by performance > critical channels (storage, networking, etc.) because it provides > improved throughput.

[PATCH v6] Drivers: hv: vmbus: Expose monitor data only when monitor pages are used

2019-03-18 Thread Kimberly Brown
There are two methods for signaling the host: the monitor page mechanism and hypercalls. The monitor page mechanism is used by performance critical channels (storage, networking, etc.) because it provides improved throughput. However, latency is increased. Monitor pages are allocated to these