Linked by Thom Holwerda on Wed 18th Mar 2009 11:48 UTC, submitted by PLan
In the News In a move that would certainly shake up the computer industry quite a bit, IBM is reportedly in talks with Sun Microsystems about the possibility of IBM acquiring Sun. Sun is going through hard times at the moment, and has been actively looking for someone to be acquired by.
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RE[7]: Will OpenSolaris survive?
by dvzt on Sun 22nd Mar 2009 03:37 UTC in reply to "RE[6]: Will OpenSolaris survive?"
dvzt
Member since:
2008-10-23

I'm not entirely sure why you're talking about 'cores'


Because there is difference between a single core-cpu and multi-core one. OS sees multiple virtual processors.

but if it's actually SMP systems you're talking about (it can't be anything else)


I'm talking about NUMA.

Trust me, it's been done and people are running stuff with an awful lot more than 32 'cores' in them. Have been for years. To post links would be fruitless and would merely insult your ability to use Google. If that's beyond you however then SGI have been doing the really big stuff, and that's with kit with >= 1024 CPUs in them. They're enormous:

http://marc.info/?l=linux-kernel&m=117580267612045&w=2

Certainly at the time that that thread was posted Solaris had never ran on anything like a 1024 CPU system.


A server and supercomputer are two very diferent things. Supercomputers are usually used for simulations and data processing, whereas servers run tradional stuff like applications and databases. Server's OS usually has quite difficult task of managing hundreds of processes competing for same resources like disk, memory and network, but a supercomputer just needs to do maths and that's it. One process on each cpu is a very likely setup. If an OS runs on a supercomputer it proves absolutely nothing. People put Linux on supercomputers because it's free and easily customizable.

To top it off, Solaris doesn't do RCU locking either:

http://lse.sourceforge.net/locking/rcupdate.html


Interresting link, but since I never heared of it, it's probably not so huge.

Linux not scalable? Solaris more scalable? More 'solid'? I Wouldn't call it FUD. It's just outright desperation,


Not FUD, not desperation, but a fact. Now it's time for me to ask you, where have you been living? Linux is just a low-cost OS for a low cost, low end servers (x86). Take Sun Fire M9000, that's 64 4-core, 8 thread cpus, i.e. OS sees 512 virtual cpus. Corporations run their mission critical stuff like Oracle databases on it. You don't see anything like that with Linux, ever. Besides, for a server availability is usually more important, because if your applications don't work, employees can't do their jobs and you loose money. If your supercomputer goes down, you maybe won't finish your scientific calculations this week - no big deal, you'll get it next week.
Seriously, where have you been hiding? All the long-time sysadmins don't even take Linux seriously.

Linux solid? You call an OS with no stable DDI solid? Take VxVM for example. It has at least dozen different kernel module packages for different kernel versions. That's a laugh! No other OS (including Windows) needs that. You call OS with multiple incompatible versions solid? And I could go on...

but hey, that's why Sun are in trouble.


The cause of their problem lies with bad marketing, but I'm not going to discuss that.

"I could tell you stories from experience how "unbrekable" Oracle Linux is on 8 core AMD server.

Dunno. There's umpteen people doing it, so maybe it's just you?
"

It's not me, it's people from oracle who were doing the implementation as part of a normal paid project. I can't think of anyone more competent.

I could tell you many stories about Solaris's exceptionally buggy drivers,


Why not? Every piece of software encouters bugs.

many of them IDE drivers that Sun is only now finding out about by using ZFS as a debugging tool,


You have IDE drives in your server? Wow.

how difficult it is to get software actually installed on Solaris


How? I never had problems, so maybe it's just you.

However, if you chose Oracle Linux then you probably don't know what you're doing anyway so it's all academic really.


I'm not the decision maker here. It's true, our IT architects failed this time.

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