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Apr 15 |
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How important is having 64-bit programs on 64-bit OS? @Joshua: System drivers really depend on the OS and the machine arch. Some 64-bit CPUs don't have modes, just added 64-bit instructions. x86_64 has an expensive mode switch to get from 64 to 32 and back, so drivers are almost always required to be 64-bit. |
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Apr 1 |
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Limiting CPU speed in a virtual machine? Yeah, this could have a real bad effect on timing loops. It all depends on if it runs full speed up to 45% then cuts out, or if it tries to actually run at 45%. |
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Mar 28 |
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Which TAR to install - IA-64 or X86 64bit? Not exactly "mainframe." I've got two Itanium systems, one is 4U the other is 1U. Got them off eBay. |
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Mar 24 |
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SandForce SSD encryption - security and support The full-disk encryption slowdown only applies to Sandforce controllers which rely on compression for their speed. |
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Mar 17 |
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Recommendations for hard drive performance boost You can get 64GB X-25E for an even higher price. |
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Mar 16 |
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Compress and then encrypt, or vice-versa? @AbiusX: Right. Patterns. And the fewer patterns, the more entropy. Which means that compression which replaces all repeated patterns with a single copy increases entropy. |
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Mar 16 |
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Compress and then encrypt, or vice-versa? But it is information entropy so it is all about meaning. Randomness doesn't mean anything so it doesn't apply. An English sentence can have letters changed and still mean the same thing so it has low entropy. A compressed English sentence might be unreadable if a single bit changes so it has the most. Or so I think. |
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Mar 16 |
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Compress and then encrypt, or vice-versa? Wait, don't you have that backwards? I thought entropy increased as redundancy decreased. Therefore compression should increase entropy. |
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Mar 11 |
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Why aren't all applications 'portable'? Exactly. How could the OS find the EXE or DLL to load without a fixed location? "Set oExcelApp = CreateObject("EXCEL.APPLICATION")" needs to work somehow. |
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Mar 4 |
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Is it safe to keep speakers behind a monitor Big speakers would also erase your credit cards if you set a wallet on one. :-) |
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Feb 18 |
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How do you retrieve the current time on a server? Network latency alone will prohibit true millisecond accuracy. |
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Feb 11 |
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How to tell a Ethernet cable is conventional or crossover Okay. It is optional, although I've never run into a system that didn't have it. See standards.ieee.org/getieee802/download/802.3-2008_section3.pdf section 40.4.4: "Implementation of an automatic MDI/MDI-X configuration is optional for 1000BASE-T devices." Sorry about that. My confusion. |
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Feb 11 |
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How to tell a Ethernet cable is conventional or crossover I'll try to find a reference source, but I am almost certain auto-MDIX is a requirement of the Gigabit Ethernet specification. I've used a lot of 100 Mbit equipment that will not work without the correct cable so I don't know about "most modern 100BaseT." |
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Feb 11 |
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How to tell a Ethernet cable is conventional or crossover This happens to be a requirement of Gigabit Ethernet. 100 Mbit will not do it though. |
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Jan 29 |
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Does NAT provide security? @Zoredache: You are actually wrong. NAT does not require state tracking. Early versions of NAT assigned an incoming port based on outgoing traffic and simply maintained that association until a timeout was reached. This port assignment did not need to filter incoming source IPs either, but would accept any incoming traffic and route it to the internal network. Why people continue to downvote me for this, I don't know. |
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Jan 26 |
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Does NAT provide security? @BillThor: Nope. You're thinking of the firewall. Why do you think a pure NAT box would not route to internal servers? |
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Jan 13 |
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Do the Intel Core-i series processors not have pins? @martineau: It makes sense: the motherboard is usually cheaper than the CPU anyway. |
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Dec 29 |
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Would I notice the difference between a 7200 rpm and a 5400 rpm laptop hard drive? Good point on the space. I use a Macbook with 250 GB and I still have room. |
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Jun 22 |
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Want Visual Studio 2010 stop using the drive when there's lots of RAM in Windows 7 64 bit I have also seen VS making the disk write and I have 6 GB that isn't full. I think VS may be using the flags that force data to disk storage. It must think the output files are valuable stuff! |
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Oct 20 |
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Any other bourne shell port on Linux? Do you mean ports of what? Original Version 7 code? There are a ton of bourne-compatible shells: bash, dash, ash, and the one included with BusyBox. |
