Reputation
6,318
Top tag
Next privilege 10,000 Rep.
Access moderator tools
Badges
1 17 35
Newest
 Enlightened
Impact
~678k people reached

Jan
9
answered Why do I get duplicated entries in my $PATH?
Jan
9
comment Hardware/IO Bottlenecks
The question is really ill-specified. It always depends on what you propose to do.
Jan
9
comment Hardware/IO Bottlenecks
RAM speed (as opposed to cache speed) matters a lot when you're doing medium sized computation. I've gotten a order of magnitude on occasion just be changing a program to make better use of the cache (matrix summation is a classic example of this kind of thing).
Jan
7
comment How do I log all UNIX shell commands submitted by all users?
I alert user would be able to disable this be resetting the variable and because it is executed "prior to issuing each primary prompt" this fact would not be logged.
Jan
6
comment Which malfunctions cause old computers to slow down and crash?
This would be somewhat enhanced by pointing out the importance of environment regulations against lead content: leaded solder doesn't do this, but to protect the water supply we either need to eliminate it (hard) or insure the proper disposal of all electronic kit (even harder).
Jan
6
awarded  Mortarboard
Jan
6
comment Which malfunctions cause old computers to slow down and crash?
@Daniel: There are other types of capacitors which don't share all the failure modes of the electrolytic variety. So why do people use electrolytic ones at all: cost and availability---electrolytics are cheap, compact in the few millifarad to few farad range, and easy to get. I have no idea how much of an increment to expect.
Jan
6
comment Which malfunctions cause old computers to slow down and crash?
@Daniel: It should help.
Jan
6
comment Which malfunctions cause old computers to slow down and crash?
@petrus: That's my second link...
Jan
6
awarded  Nice Answer
Jan
6
comment Which malfunctions cause old computers to slow down and crash?
Related: Why does hardware get slower with time?.
Jan
5
revised Ubuntu terminal characters required in Makefiles
deleted 13 characters in body
Jan
5
comment Ubuntu terminal characters required in Makefiles
I've had one more brain-storm: if you have unpacked onto a windows-native filesystem I'd look to see it tar or the filesystem might be diddling the line-endings for you. After that I'm stuck. The INSTALL file has a lot of advice further down, but it does require that you can guess at what's going wrong in the first place. Finally, do you have a non-VM environment you could try this in just for comparison?
Jan
5
revised Ubuntu terminal characters required in Makefiles
added 45 characters in body
Jan
5
comment Ubuntu terminal characters required in Makefiles
That pretty much shoots all my good ideas down, unless ./configure has missed something important.
Jan
5
revised Ubuntu terminal characters required in Makefiles
added 435 characters in body
Jan
5
answered Ubuntu terminal characters required in Makefiles
Jan
5
comment Can computers be linked to work together?
So called "close-coupled clusters", of which Beowolf was the earliest example do function as a single, multiple CPU computer. Certainly the usual overheads apply, but they are distinct from the more common loosely couple clusters.
Jan
5
comment How to UNDO in Bash?
In addition to "Here's a nickle, kid. Get yourself a better computer." old unix programers and admins like to say "You recover from your backup. You do have a backup don't you?". Though in this case it is only the original contents of the sub-directory that are likely to be lost.
Jan
5
comment MacOS: How to “cd” into a symlink?
Well, you can create them...they just don't work.