371 reputation
19
bio website
location Finland
age 36
visits member for 3 years, 3 months
seen Feb 27 at 7:18

My daily work is a closed source PHP project but I'm really interested in open source projects and I know PHP, C/C++ and Perl 5 pretty well. I can do some Java, Python, x86 assembler (intel syntax) and some other programming languages, too. I'm currently running Ubuntu (workstation, home computer, laptop) and Cyanogenmod (phone) as my OS of choice. GPG: 563168EB


Jun
25
answered GIT pull times out?
Jun
25
answered Why does TERM=xterm have to be set for my script to work correctly when remotely executed?
Jun
25
answered Git Clone from SSH Repository
Jun
25
comment Will a 300W psu drain more power than a 100W if the system only uses ~80W?
A modern, highly efficient power supply with 85% rating is required to have a minimum efficiency of 85%. That means that for a suitable load it could be a lot more efficient. If your "300W" power supply does not provide any specific efficiency, you can guess it has efficiency of 50% for anything but close the full load. In short: if both are low quality power supplies, then the "300W" model will probably eat more electricity. For high quality power supplies, the power drain should be close to equal but "300W" model is probably more costly to purchase as a new.
Jun
25
answered The best “performance per watt” (MFLOPS/W) for CPU and GPU for the moment
Jun
25
answered High Lock Wait ratio in MySQL
Jun
25
answered PHP/APC fatal error, apc_mmap: mmap failed
Jun
25
answered Very high CPU and low RAM usage - is it possible to place some of swap some of the CPU usage to the RAM (with CloudLinux LVE Manager installed)?
Jun
25
answered linux audit - exclude a process that updates the time
Jun
25
comment How should I tune apache when I see high CPU, but low memory usage?
The problem is definitely something that runs inside Apache process but is not the apache itself. The mod_php is indeed the most likely cause. You need to profile the PHP scripts you're running and figure out what those are doing to waste the CPU.It is not the database, though. If database is the bottle neck, you'll see lots of Apache processes IO blocked waiting for response from the database. The fact that Apache/PHP processes eat CPU means that they are not waiting for IO (unless you're running scripts that use busy waiting and non-blocking IO, in which case you have found the cause).
Jun
25
comment Linux Kernel Versioning: Debian Sid vs Ubuntu Precise
The situation is a bit muddy. According to the Ubuntu Kernel FAQ (wiki.ubuntu.com/Kernel/…) one can infer the base kernel version from the Ubuntu version. However, in reality, one must check /proc/version_signature or consult list at kernel.ubuntu.com/~kernel-ppa/info/kernel-version-map.html. For specific changes, see file /usr/share/doc/linux-image-*/changelog.Debian.gz and compare it to wiki.ubuntu.com/Kernel/FAQ/UbuntuDelta or fetch the Ubuntu git tree.
Jun
21
comment How can I take advantage of IW10 in kernel 2.6.33?
The article at igvita.com highly probably has an error where it claims 2.6.33 supports IW10.
Feb
8
awarded  Revival
Dec
21
awarded  Teacher
Dec
21
comment Backup strategy for eCryptfs
I think that eCryptfs really encrypts the file in 4KB blocks so a localized change to a file should modify at max additional 8KB of the file. As a result, rsync should work fine.
Dec
21
answered Is it safe to alter the underlying encrypted files for a live mounted ecryptfs volume?
Dec
21
awarded  Supporter