1,131 reputation
68
bio website geek.co.il
location Israel
age 39
visits member for 3 years, 6 months
seen 2 days ago

I'm a self taught software developer, system administrator and all-round code-guy.

I've been doing software development, QA, developer support and system and even some graphic design work for as long as I can remember (going back 20 years or so, I think), both on commercial projects as well as open source and free software, and I enjoy both.

Coding is fun, that's why it is worth doing - I hope it never becomes a chore :-)


Jul
5
awarded  Revival
Jul
4
answered Bash completion for comma-separated values
Jun
9
comment Understanding SSH tunnels
Very good, thanks for the illustration. I appreciate that you added "remote" type tunnels, which I did not cover in my anwers.
Jun
9
answered Why EC2 instance spends all its time in “IRQ” and what to do about it?
Jun
9
comment Why EC2 instance spends all its time in “IRQ” and what to do about it?
Actually, @sim, reading the serverfault question again, and after finding an AWS support thread with a similar issue, I think this is relevant. Thanks!
Jun
8
awarded  Commentator
Jun
8
comment Why EC2 instance spends all its time in “IRQ” and what to do about it?
Nothing comes to mind, except maybe the actual output of /proc/interrupts and top, though I doubt that will give a lot of insight. I have a feeling the hardware is simply very loaded by other workflows and I can "fix" my problem by moving the VM to another host.
Jun
8
comment Why EC2 instance spends all its time in “IRQ” and what to do about it?
@sim: the problems you are discussing are about SMP systems, while m1.small is a single core VM - so I don't see how IRQ balancing has any relevance. Thanks.
Jun
8
comment Why EC2 instance spends all its time in “IRQ” and what to do about it?
/proc/interrupts just shows high counts for the items specified in the question, and low or zero for everything else. Regarding performance - I don't think I'm expected a lot - a celeron class CPU should be able to run a requested through a somewhat customized wordpress site in less then 16 seconds (which is my current performance).
Jun
7
awarded  Student
Jun
7
asked Why EC2 instance spends all its time in “IRQ” and what to do about it?
Jun
5
comment Bash completion for comma-separated values
Nice idea @MichaelEhrenreich, but you mustn't quote the $VARIABLE, otherwise word breaking doesn't happen. just use IFS=, LIST=($VARIABLE).
Jan
30
awarded  Yearling
Sep
16
comment Online remount btrfs of root filesystem with different subvolume (snapshot)
For the purpose of reverting to an old snapshot, I don't see a problem doing it on-line: most files will remain the same (even backed by the same physical block), and for files that don't - yes, I expect the application holding the file to corrupt and crash. Obviously the required functionality for the mount command was not implemented but I still think it should.
Aug
30
comment Has the launcher security issue in KDE and Gnome been fixed?
Yes, if you manage to put a desktop entry into the user's "auto start" folder, it will auto execute when their session starts. How would you do that? seems to me to be a chicken and egg kind of problem. The premise of the linked article is that you can send a user something which looks like a standard data file but executes code when you run it - this is incorrect because setting the "Name" attribute does not affect how the file looks to a file browser (the desktop is just a file browser view) - it will have a .desktop extension.
Aug
30
answered Has the launcher security issue in KDE and Gnome been fixed?
Jul
9
awarded  Guru
Jan
30
awarded  Yearling
Dec
21
awarded  Good Answer
Oct
25
comment How to create a shortcut to a folder to Documents
@orange: as don_crissti mentioned, I was incorrect in the way to get a drag menu - you need to hold ALT while left dragging.