I am giving a talk and demonstration in London (UK) this Saturday afternoon, 31st January on the subject of the Fedora MinGW (Windows cross-compiler) project. Free entry, everyone is invited!
Previous MinGW postings on this blog ...
Thursday, 29 January 2009
Saturday, 10 January 2009
ocsigen (OCaml web framework) benchmarked
This benchmark compares the OCaml web framework ocsigen against Ruby on Rails and lighttpd+C with some excellent results for the OCaml framework:
OCaml is not just an order of magnitude faster and an order of magnitude more memory efficient, but it also provides complete compile-time safety, catching multiple errors at compile time which would otherwise only show up after extensive testing.
More discussion on this reddit thread.
There's a Fedora ocsigen package waiting for review here.
| Reqs/sec | Mem usage | |
|---|---|---|
| Rails with mongrel, 1 process | 260 | 49MB |
| Rails with mongrel via nginx (rev proxy), 1 proc | 220 | ~51MB |
| Rails with mongrel, 4 processes via nginx | 430 | ~200MB |
| OCaml ocsigen (1 process) | 5800 | 4.5MB |
| lighttpd with FastCGI app in C, 20 procs | 9300 | 4.5MB |
OCaml is not just an order of magnitude faster and an order of magnitude more memory efficient, but it also provides complete compile-time safety, catching multiple errors at compile time which would otherwise only show up after extensive testing.
More discussion on this reddit thread.
There's a Fedora ocsigen package waiting for review here.
Friday, 2 January 2009
Home server, part 4, installing the OS
For want of a cable, my home file server wasn't coming along very well, but today I hooked up the 2.5" IDE to PATA converter cable from Maplin with the hard drive from the disassembled Viglen MPC-L:
The Viglen was really easy to disassemble by the way. Two screws on the back hold on the backplate, and then the entire motherboard/hard disk assembly slides straight out. Another three screws let you remove the hard drive.
I settled on relatively simple route to install CentOS. I used Red Hat's KVM virtualization to run a VM, attaching the physical hard drive and the (virtual) CentOS DVD ISO. It sounds complicated, but all you need is this virt-install command line to do it (the host is Fedora 10):
(Adjust the path to the CentOS DVD ISO, and the physical hard drive device as appropriate).
CentOS 5.2 installed in about 15 minutes:
The Viglen was really easy to disassemble by the way. Two screws on the back hold on the backplate, and then the entire motherboard/hard disk assembly slides straight out. Another three screws let you remove the hard drive.
I settled on relatively simple route to install CentOS. I used Red Hat's KVM virtualization to run a VM, attaching the physical hard drive and the (virtual) CentOS DVD ISO. It sounds complicated, but all you need is this virt-install command line to do it (the host is Fedora 10):
virt-install --connect=qemu:///system \
-n centos5 -r 512 \
-v --accelerate \
-c /root/CentOS-5.2-i386-bin-DVD.iso \
-f /dev/sde \
--vnc --vncport=5900
(Adjust the path to the CentOS DVD ISO, and the physical hard drive device as appropriate).
CentOS 5.2 installed in about 15 minutes:
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