rtorernt and wtorrent (How to)

So I came across this tonight. I’ve been looking at a way to get a web interface for rtorrent, but could never get wtorrent to work properly (actually, at all).

So this guide may be what I need. I’m sure I can adopt it to use under openSuSE (if not I can just install Debian Lenny as a VM, and try out the tutorial)

Compile And Set Up rTorrent and wTorrent In Debian 5 Lenny [Complete How-to]

XenServer 5.5.0 and IDE drives

A few days ago I moved from runing a openSuSE DomU host to the Free XenServer 5.5.0 that Citrix is offering.

I had noticed that the VMs were running very slowly. Much slower then I remembered them running on the openSuSE DomU. So I did some tests, and it came down to the  fact that hdparm -tT /dev/sda was reporting about 1-2MB/sec for the buffered disk reads. This was taken at the console of the xenserver terminal, not on a VM.

After some research, I found out that the generic IDE drivers don’t allow for UDMA to be enabled. So I did the next best thing. I had a SATA drive of similar size in another machine, and swapped the two.

Now I get about 60MB/sec buffered disk reads. That’s what it should be. And from within a VM I get about 55MB/sec, but I don’t quite believe that. Will have to do some more extensive testing with bonnie++.

Wish list

This list will be updated on an ongoing basis, with things that I may want/need, so check back often if you want to get me something.

Canadian Tire

Mastercraft 4-piece Nail Set : $9.99

Memorex Air Duster 10-oz. : $9.99

DeWalt Reciprocating Saw Blades : $15.79

Backpacker First Aid Kit, 46-Pc : $10.99 Got it.

Coghlan’s Clip-On Mantle : $3.49 Got it.

Coghlan’s Fire Lighters : $5.69

Mastercraft Electric Nailer : $79.99

Princess Auto

3/8″ drive torque wrench : $39.99

39 pc sae tungsten alloy tap & die set : $18.88 Got it

10″ hand riveter : $9.99 Got it

Chapters (books)

Type Talk : $22

The art of Speed reading people : $22.99

My voice will go with you: Teaching tales of Milton Ericson : $ 21.00

100 Simple secrets of happy people : $13.95

Patterns Of The Hypnotic Techniques Of Milton H. Erickson : $19.95

Sourcebook of Magic: Comprehensive Guide to the Technology of NLP : $24.75

Please Understand Me: Character And Temperament Types :$15.95

Stumbling on Happiness : $15.96

Other items

– Eneloop batteries
– Light stand, with mounts for flash
– Umbrella for light stand (with mounts)

HowTo: OpenSuSE 11.2 PV running on XenServer 5.5.0

I’ve been running virtual machines for a while now (maybe 3 years?) and they have all been running on some bare minimal OpenSuse installation (in Dom U) with Xen being the hypervisor.

I decided the other day to give XenServer 5.5.0 (the free version) a try. I had a few days of unhappiness, mainly because I love openSuse, and it seemed that nobody knew how to get it installed in XenServer, as a PV guest.

I finally got it working. Finally got openSuSE 11.2 running in XenServer, as a PH guest, with the Server Tools installed and working. Continue reading

rtorrent config file

Since I decided to get a new motherboard to try to solve what I thought was a memory problem, I also decided (on a whim) to look into the rtorrent rc file.

Came across this site. Turns out the reason the xen server kept hanging may have been related to the max memory usage option… I’ve made some changes… we’ll see how they work.

I need to re-visit that site since there’s so much info on there, that I’d like to read and absorb. Continue reading

Flash system

Since I’d like to get into some wireless triggering of flashes, I’m looking for some cheapper flashes I can use and trigger them remotely.

I have a Sigma EF500 DG Super, but it doesn’t get triggered very well. So I’m going to sell it, and pick up something else (maybe an older Canon 54ez, or a Nikon SB-2x) to use along with the Vivitar 285HV flash. Continue reading

f-stop numbers : how to calculate

Every time I wanted to find out what f-stop numbers existed between the whole  full stops, I had to spend too much time scouring the web for this info.

Now I finally understand how I can generate these numbers myself.

The fstop numbers are powers of the square root of 2. For example,

(√2)^1 = 1.4
(√2)^1.33 = 1.6
(√2)^1.66 = 1.8
(√2)^2 = 2
(√2)^2.33 = 2.2
(√2)^2.66 = 2.5
(√2)^3 = 2.8
(√2)^4 = 4
(√2)^5 = 5.7