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visits member for 3 years, 1 month
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Nov
15
comment How do I determine whether a drive is an HDD or SSD in Windows 8?
You should still not do that, even if the risk is low. It's unnecessary since you can tell without taking the risk. A mechanical disk makes very noticeable sounds while spinning up and down, and while seeking. Solid state disks make no sound at all.
Nov
10
comment How do web-servers “listen” to IP addresses, interrupt or polling?
Slight nitpick: It is not really necessary to block. As soon as the server process has created a listening socket, the kernel will accept SYNs on that port, even while you are not blocked inside accept. They are (luckily, or it would totally suck!) independent, asynchronously running tasks. As connections come in, they're placed into a queue where accept pulls them from. Only if there are none, it blocks.
Aug
11
comment How to limit HDD write speed for chosen programs
If the computer is "unusable" when copying huge files, is it possible that you have forgotten to enable DMA? Normally, whether or not the disk is busy makes little or no difference since that happens without much (or any) CPU intervention.
Jul
17
awarded  Popular Question
Jul
8
awarded  Yearling
Jul
8
comment Swap partition size on a 64 GB RAM computer for memory-intensive work
@T.C.: Not using SSD for swap because of wearing down the medium is an unjustified urban legend. Swapping does not happen "all the time", but rarely. Also, this is something that has been extensively researched at Microsoft after the Win7 release with the result that the typical access patterns of swapping are quite acceptable for SSD (that's Windows, not Ubuntu, but it's likely that Linux does not perform much worse). You have a hundred (or thousand) times more write operations wearing down your SSD due to silly log files that nobody is ever reading (usually syncing every line).
Jul
8
answered Swap partition size on a 64 GB RAM computer for memory-intensive work
Apr
29
awarded  Caucus
Apr
14
comment Why do English characters require fewer bytes to represent than other alphabets?
The paragraph about Unicode is wrong, though. Unicode is not a solution to the existence of different terminals. On the contrary, Unicode is entirely unsuitable for what it is being used for. It is is not a character set, but a grapheme encoding (for "anything man has ever written"), which includes graphemes of languages that no living person speaks and multiple ambiguous encodings for the same graphemes. This makes it an extremely poor choice for computer text processing, introducing many twists and pitfalls, and significant overhead (for such things as e.g. "normalization").
Apr
8
answered Does more RAM usage cause more battery usage?
Mar
12
comment Properly close (not kill) programs from the command line
If taskkill works the same as TaskManager (which I haven't verified, but strongly suspect), then it works by first sending WM_CLOSE, and setting a timer (something like 100-200ms) after which TerminateProcess is called if the process still exists. That allows a responsive application (usually) to exit gracefully, and will blast a non-responsive application out of existence anyway. If Chrome shows an improper shutdown dialog on next start, it probably takes too long to shut down.
Mar
11
comment Hard Drives and types — What makes them so different?
I see, so I got it exactly the wrong way around. Thank you for the clarification (but my point about "Green" still stands, spinning a harddisk slower than at its normal operational speed (when the heads aren't in park position) is certainly a catastrophic, stupid idea).
Mar
6
comment Hard Drives and types — What makes them so different?
"Green" on the other hand, is already self-explaining. The Green Movement is a moronic, misled ideology to "save the environment", which only reduces performance and destroys the environment. Green drives will save a few milliwatts over their lifetime by spinning the disk slower, but due to the way harddisks work (air bearing) this greatly reduces the drive's resilience to vibration and its overall lifetime. Replacing drives more often due to decreased lifetime is an economic benfit for the manfacturer (more sales) but damages environment much more than a few milliwatts extra.
Mar
6
comment Hard Drives and types — What makes them so different?
TLER is not just important for enterprise, it is the one important feature on a hard disk to avoid losing data. A drive without TLER is broken by design, it means that the first time a sector fails its checksum (which will inevitably happen with age, but may randomly happen due to many other reasons) the sector will be remapped and the data is never again accessible. TLER will cause a user-noticeable delay and generate a relocation event that SMART tools will pick up. It gives you the possibility to ignore the event or to back up data if that has not already happened.
Feb
15
awarded  Commentator
Feb
13
answered What's faster for office work - SSD + slow CPU or HDD + fast CPU
Nov
20
comment How to delete Windows NTFS hard link (mklink /h) while original is in use?
Should probably be asked on superuser. But still: movefile should be able to do the trick in any case. It's surprising that you cannot simply delete the hard link though, actually it should be a completely "unrelated" file.
Nov
14
comment Disable Windows 7 program grey-out during long-running / busy programs
Processes running in a debugger aren't ghosted. Is writing a mini-debugger acceptable? Something like... CreateProcess(); DebugActiveProcess(); for(;;)WaitForDebugEvent();.
Oct
11
awarded  Tumbleweed
Oct
4
asked Run task manager (process explorer) as administrator