Some of you who follow me may know that I have recently built a pretty nifty framework for working with terminals. ANSI, ASCII, VT100, Windows Console, etc. Its called Tcell, and located on github. (Its a Go framework though.) It offers many of the same features as curses, though it is most definitely not a clone of curses.
Anyway, I decided it should be possible to write a game in this framework, so I wrote one.
This blog shows a simple usability best practice.
In Oracle VM Server for SPARC you name the virtual network devices,
and there is no requirement that virtual network device names be unique across domains.
In other words, you could do something like this:
# ldm add-dom ldg1
# ldm add-vnet net0 primary-vsw0 ldg1
# ldm add-dom ldg2
# ldm add-vnet net0 primary-vsw0 ldg2
That's perfectly legal, and doesn't cause any operational problems.
As part of my recent work on Tcell, I've recently added some pretty cool functionality for folks who want to have applications that can work reasonably in many different locales.
For example, if your terminal is running in UTF-8, you can access a huge repertoire of glyphs / characters.
This article on Oracle VM performance reviews general performance principles,
and follows with a review of Oracle VM architectural features that affect performance.
This will be high-level as a basis for more technical detail in subsequent articles.
How to evaluate and measure performance (short version)
First, let's consider ways to not evaluate performance.
Performance is often stated in unquantified generalities ("Give good response time!") or complaints ("Response time is terrible today.
I've been noticing more and more lately that we have a plethora of libraries and programs written for Go, which don't work on one platform or another. The root cause of these is often the use of direct system call coding to system calls such as ioctl(). On some platforms (illumos/solaris!) there is no such system call.
I'm happy to announce that I feel I've wrapped up Govisor to a point where its ready for public consumption.
Govisor is a service similar to supervisord, in that it can be used to manage a bunch of processes. However, it is much richer in that it understands process dependencies, conflicts, and also offers capabilities for self-healing, and consolidated log management.
root@test:# ./gdisk /dev/dsk/c2t3d0p0
One of the exciting challenges of being an all open source company is figuring out how to get design conversations out of the lunch time discussion and the private IRC/Jabber/Slack channels and into the broader community. There are many different approaches to this, and the most obvious one is to simply use whatever is used for issue tracking.