Re: proposed additions to sys/conf/std

[Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>]

jakllsch@ wrote:

> I propose adding
> 
> pseudo-device drvctl
> 
> and/or
> 
> options BUFQ_PRIOCSCAN
> 
> to src/sys/conf/std.

- Can't drvctl device be module(7)?
  If yes it should be into each GENERIC or MONOLITHIC.

- Most GENERIC already have commented out options BUFQ_PRIOCSCAN,
  http://mail-index.NetBSD.org/source-changes/2005/06/09/0048.html
  so just uncommenting it would be easier for now.
  (most INSTALL or DISKLESS kernels don't need it)

BTW is there any benchmark numbers around these bufq(9) options?
I wonder if it's still efficient even on modern HDD with large cache,
or even SSD.

---
Izumi Tsutsui