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Sun Microsystems

Interview With Solaris Kernel Engineer Andy Tucker 21

Gentu writes "OSNews hosts an interview with Andy Tucker, Distinguished Engineer of the Solaris kernel. They talk about the internals of Solaris, the competition and how the OS compares to Linux/BSD/other-Unix and also about its future."
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Interview With Solaris Kernel Engineer Andy Tucker

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  • by dthable ( 163749 ) on Wednesday June 18, 2003 @12:47PM (#6235138) Journal
    An example is the two-level thread scheduling model, where thread scheduling happens both at user level and in the kernel. Although this approach had some theoretical advantages in terms of thread creation and context switch time, it turned out to be enormously complicated, particularly when dealing with traditional Unix process semantics like signals.

    I'm glad to see that someone also thinks this was a bitch to work with.
  • by mnmn ( 145599 ) on Wednesday June 18, 2003 @01:34PM (#6235580) Homepage
    I couldnt completely eliminate FreeBSD or Linux from my OS options while installing servers, each had strengths I needed.. until I ran into Solaris.

    There are cards that have drivers for Solaris but not Linux or FreeBSD. There are tools and functionality in Solaris that I couldnt find in the others and had to use Solaris for some things.. such as SNAT between an ethernet and tokenring card. All linux kernels crashed after a while of doing this and so did FreeBSD with its lone Olicom driver support. Solaris held on. In other places, FreeBSDs performance just beat Solaris out of the water (no Java thrashing the harddisk like its Baghdad).

    I can understand why theres little enthuisiasm for Solaris around the slashdot circles, its not free and it makes money for someone else. But just as we laugh at Microsofts lack of quality, we must laud a good product. Theres no denying the graphics capabilities of OSX and Irix, network and system admin tools of Solaris, huge features and ports of Linux and rock hard stability and efficiency of BSD.

    Solaris especially makes a great package with a 64-bit Sparc CPU like the cheap used Ultra 5 systems. They still need to work on the scheduler, IDE speeds and hopefully theyll put virtual terminals back in Solaris10.

    I havent used AIX, HPUX or OS/360/390/400. Does anyone know of their strengths and edge over other OSes?
    • I havent used AIX, HPUX or OS/360/390/400. Does anyone know of their strengths and edge over other OSes?

      Yeah, their main strength (from their maker's standpoint) is that you get to pay IBM $1000's per hour or HP hundreds per hour in consulting fees for the priviledge of using them.

      Really, unless you must use software or hardware that only runs on/with HPUX or AIX, don't bother. Even IBM is getting away from AIX for a lot of stuff.

      Some of the biggest issues we've had are integrating with other companies who are running the above. I spent two days at an IBM facility for a conference to design how we were going to communicate with a business partner user MQ Series, since that was their IBM influenced "standard". The end result was to use MQ for "small" messages and a DIFFERENT proprietary solution for "large" messages like image files. This all because they had an IBM AS/blah blah culture.

      In contrast, we spent about 30 minutes each getting all the other partner companies setup with some SSH2/SCP2 scripts to communicate with our Solaris box (even if they were running NT/2000, just had to change the version of what we sent them) and they've proven to be much less of a headache.

      In summary, simplicity and standardization in Solaris, Linux or *BSD, etc... enables a lot of time and cost savings that the AIX/HPUX/OS of the world have missed.
      • by Zephy ( 539060 ) * <jon.aezis@net> on Wednesday June 18, 2003 @02:16PM (#6235982) Homepage
        AIX's best strength is (IMO) the volume management. It's a very good system, and is sensible and very very stable, and also system config on aix is much simpler than other commercial unixes, as there's just one tool (smit/smitty), and everything (even raid card tools) plug into the one tool.

        Really though, these days, the unified config tool is the only thing that linux can't do out of the box (although webmin is a very capable alternative, if a bit slow on older kit), as the hardware support for the power3/4 systems is pretty good. Though there's some stuff that linux can't run on ( some dpx20 Bull kit, and some motorola stuff ), that older versions of aix do.

    • hopefully theyll put virtual terminals back in Solaris10

      In the meantime Screen [gnu.org] is your friend.
  • Did they, too, stole code from SCO?

    Nobody is able to do as well as us, so they must have stolen the code

    Somebody had to build on the paranoia.
  • Wet fire? (Score:5, Informative)

    by pmz ( 462998 ) on Wednesday June 18, 2003 @02:10PM (#6235928) Homepage
    Do the articles have to be flamebait, in order for people to post replies?

    This was actually a very good interview. For example, the Mad Hatter desktop might be out before the year is over (good stuff: Linux, GNOME, plus Microsoft filesharing and Exhange interoperability). Sun is one company who could sell something like this, because they are a very well known brandname along with an ability to offer big support. Sun is also one company who has an interest in promoting Solaris, Linux, and Windows interoperability without keeping an ace in their sleeve. If they are successful, nearly everyone benefits.
  • Sun's bazaar (Score:3, Informative)

    by Chalst ( 57653 ) on Wednesday June 18, 2003 @04:06PM (#6236950) Homepage Journal
    The answer to the fifth question is interesting: Andrew argues that there is a Bazaar-like quality to Solaris development, since much code is contributed by non-OS development teams at Sun.

    An important aspect of Linus' management is his anti-roadmap approach to leadership. I wonder how this compares to Solaris?

  • by Pflipp ( 130638 ) on Wednesday June 18, 2003 @06:40PM (#6238270)
    why not here.

    If you see a bazaar as a place where everyone sells his own small product, and a cathedral as a result of often loosely planned and re-planned work of many ages and many men, with many different skills involved... ...then, actually, who is the Cathedral, and who is the Bazaar?
    • Ditto...next to "What Color is Your Parachute" this was the most head-scratch inducing title I had seen in years. Good article though.

      (I was disappointed that "What Color" wasn't a puzzle book...after all, it was shelved in the reference section -- with trivia, but also with resume guides.)

Every nonzero finite dimensional inner product space has an orthonormal basis. It makes sense, when you don't think about it.

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