Re: Is the Giant lock completely removed?

["Steve O'Hara-Smith" <steve@xxxxxxxxxx>]

On Fri, 7 Aug 2009 12:43:19 +0530
Siju George <sgeorge.ml@gmail.com> wrote:

> Hi,
> 
> Tomorrow I will be addressing a meeting hosted by our police
> department to educate people on the security advantages of using FOSS.
> I would like to include a section in my talk to speak on dragonfly.
> One doubt is has the Giant lock been completely removed from
> dragonfly? And in addition to HammerFS what else can I state as
> advantages for using dragonfly? Any hints I will be very grateful :-)

	Distinguishing features of DragonFly include:

Process checkpointing (see man checkpt)

Vkernel (similar to user mode Linux)

Journalling for UFS - allows near real time replication to UFS or Hammer
(see man jscan)

	Downsides

No Java

BGL not yet gone completely

USB HID support not great

Linux emulation needs updating

	I'm sure there's more in both sections that I haven't thought of.

-- 
Steve O'Hara-Smith                          |   Directable Mirror Arrays
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