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The kernel is based on Mach and much of the userland stuff is from FreeBSD or NetBSD. OSX v10.5 gained UNIX certification.
There is no relationship to Linux, the GNU license that is fundamental to Linux's success (and failure) would have prevented them from considering it as the basis for a new commercial operating system.
BSD came first, Linux is the ugly stepchildand that BSD was just the Berkley flavour of Linux...
Sounds like you need to tune your box a bit better, give it lots of RAM. Try moving each half of the mirror onto different disk controllers.I'm happy to simulate things through Virtual Machines, but not happy to run my applications full time on VMs. I find even with a 4 disc RAID 10 returning more than 170Mb/s, it still isn't "snappy" enough.
Yep, more RAM, remove all the virtual memory in the guest operating system entirely if you can.I ran Amibroker for a while on a VM, but I found it to be a bit laggy when doing back tests, mainly due to harddrive hits. Moving it to the host made it very fast though.
It's insane, isn't it. Computers I got 3 years ago are ancient now, even 2 year old technology is looking very long in the tooth.Oh well, technology moves fast.
Just for a bit of think outside the box, since you have such a decent budget to play with, have you considered buying a trading workstation running Windows, and accessing it from a Mac laptop?
170mbs? heheh how old is this system?
Sata 2 drives are at 3Gps now.
If you want real HD performance you would get a SST solid state drive which is faster again.
BSD came first, Linux is the ugly stepchild
Sounds like you need to tune your box a bit better, give it lots of RAM. Try moving each half of the mirror onto different disk controllers.
Yep, more RAM, remove all the virtual memory in the guest operating system entirely if you can.
It's insane, isn't it. Computers I got 3 years ago are ancient now, even 2 year old technology is looking very long in the tooth.
I knew if I posted that It would get a bite...
Mate you cant drop numbers without qualifying them.
170mbs what, where, when, how? You never said that was continuous transfer rate did you?
As a case in point, this is the specs on a drive case I just bought.
• Transfer Rates Up to 3Gbps W/ eSATA
• Transfer Rates Up to 480Mbps W/ Usb 2.0 (12Mbps W/ USB1.1)
If you where a non techie looking at that you would be going Oooh sweet... but max sustained transfer rate in mechanical drives right now is still only about 130mbs which is actually within the capabilities of the older ATA/133 specification. Flash drives are faster at about 200mbs.
One other thing
Did he not mention he wants a laptop? Raid 10 or if you like raid 1+0 as you know needs 4 drives, & its normally run in servers needing the best fault tolerance. He wants to chart and surf the net... Why even mention Raid if you are not going to explain what Raid is ?
Unless you make it clear what you are talking about and not just dropping jargon to be knowledgeably all you are doing is confusing people.
BTW running the workstation and the laptop is a good idea, if you do that try running a freeware program called Synergy. It will let you control both machines from one keyboard and mouse over a home LAN. Works a treat with my bluetooth keyboard and mouse
Nope. If you run a Windows 'guest' in a virtual machine it's the whole of Windows running there, kernel, drivers, memory management, storage, Internet Explorer, etc. and all it's associated foibles.NOW, if I run windows 'within' Mac, can I free myself of the antivirus curse?
Depends on your usage and level of paranoia. I don't run any, but I know there are AV products available.,and are antivirus' needed for Mac at all?
You'll need something to host XP as a guest. Personally I prefer VMWare Fusion (around $100).Now say I want to run something like my old MS XP inside the Macbook Pro, download my data from paritech and run Metastock 9.0.
What do I have to physically do, to get the XP, the metastock and the paritech downloader in to my Mac..
And what extras do I need?
You'll need something to host XP as a guest. Personally I prefer VMWare Fusion (around $100).
Then you need an XP license, these are NOT FREE, and no, you probably can't legally transfer the one you got with your PC. Yes Windows operating systems are expensive, there's a reason more and more people are looking at free alternatives like Linux.
Then you create a new Virtual Machine using Fusion, allocate it some CPU, RAM (min 256Mb) & disk space (min 2Gb) and tell it to boot from your XP install CD. Fusion will allow you to share your Mac's network connection (NAT) and will obtain an IP address automatically for you, no need to worry about networking and all that stuff, it just works.
Once XP is installed you can install the rest of your software like metastock just the same as if it was a regular PC. If you select "unity" mode the XP applications appear side-by-side with your Mac applications, you don't see the XP desktop anymore.
m.
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