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Questions tagged [x86]

42 questions
34
votes
1 answer

Unexpected and unexplained slow (and unusual) memory performance with Xeon Skylake SMP

We've been testing a server using 2x Xeon Gold 6154 CPUs with a Supermicro X11DPH-I motherboard, and 96GB RAM, and found some very strange performance issues surrounding memory when compared to running with only 1 CPU (one socket empty), similar…
Marc Micalizzi
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24
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3 answers

How much overhead does x86/x64 virtualization have?

How much overhead does x86/x64 virtualization (I'll probably be using VirtualBox, possbly VMWare, definitely not paravirtualization) have for each of the following operations a Win64 host and Linux64 guest using Intel hardware…
dsimcha
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15
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1 answer

x86, i386, i686, amd64, i5, i7, archtecture, processor confusion

I noticed those items x86, i386, i686, amd64, i5, i7, archtecture, processor from the web, from my own notebook, from book readings. But I am really confused by those terminologies. I try my best to elaborate my confusion, though you might…
Zack
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12
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4 answers

SQL Server Installation: Is it 32 or 64 bit?

Recently I was performing an OS upgrade on one of our DB servers, moving from Server 2003 to Server 2008. The DBMS is SQL Server 2005. While reinstalling SQL on the new Windows installation, I went to another of our DB servers to verify a couple of…
CapBBeard
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10
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2 answers

Free SSL VPN client

What is the best free SSL VPN client that works on 64 and 32 bit windows clients?
Nick R
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9
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5 answers

How does a 32-bit machine support more than 4 GB of RAM?

I have always wondered about this and never totally understood how 32 bit machines are addressing more than 4 GB of RAM. I mean, there are no more address lines left, correct? I know even in our facility that we have Dell database servers with 8 GB…
Brettski
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5
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3 answers

Need to run an IIS website in 32bit mode on a 64bit Windows Server

I have an IIS6 server setup running Windows Server 2003 x64, R2, SP2. Everything is working great I can host websites in IIS, and it works exactly how I want. The catch, I've got an ASP.NET WebApp that needs to use a 32-bit only Odbc driver. I've…
Nate
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5
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4 answers

System speed/memory considerations x86 vs. x64

Currently I have Windows Server 2008 x64 installed on my machine. I'm about to reinstall when R2 comes out (few more days). Since I still remember all the tweaking with various device drivers, I'm thinking of installing an x86 version which has…
Robert Koritnik
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5
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2 answers

X86 Solaris boot failure

We had a power outage last weekend that seems to have done some very bad things to one of our x86 Solaris machines. It is refusing to boot, and dropping me to the "grub>" prompt when started. I can get it to recognize the multiboot kernel and…
John
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9 answers

For Intel Core 2 Duo, should I upgrade my x32 with x64 Linux?

I understand that the Core 2 Duo is a 64-bit processor, while Core Duo is a 32-bit processor. Let me know if my understanding is wrong. My Linux server, with the Core 2 Duo E8400, is currently running Fedora 9 x32. This machine has 4 Gig of RAM and…
Eddie
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3
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1 answer

Performance penalty virtualising x86 from arm vs x86 from x86

Im not entirely sure if this is the correct place for this question, but I would like to build a server to run some experiments on and im considering arm, most of my code can be compiled to run on arm but there will be some external dependencies…
SwiftD
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Сan I use IOMMU for VT-d to give each virtual machine one at a time GPU?

If I use VMWare with 4 virtual-machines and 4 GPUs (nVidia Quadro/Tesla), then can I give (move) some devices to different virtual-machines for each by a single card? If I have one of these CPU, then I have IOMMU:…
Alex
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3
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3 answers

Stability, x86 Vs Sparc

Our project are plan to migrate from Sparc to x86, and our HA requirement is 99.99%, previous on Sparc, we assume the hardware stability would like, hardware failure every 4 month or even one year, and also we have test data for our application,…
Jason T
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3
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3 answers

Advantages and disadvantages of ARM vs x-86 processors in future laptops

Recently I’ve started reading about ARM processors coming out on low-cost and low power laptops, such as these unveiled at computex in Taiwan. I’m one of the Tech people at my company, and often I get asked for my opinion when picking out new…
Cimplicity
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3
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2 answers

Alternative to ScaleMP?

Anyone know of an alternative to ScaleMP? They let several x86 boxes boot as one large box. Theoretically AMD's hypertransport should allow the same thing. Any other companies or OSS projects doing this?
Brian Makin
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