Bjoern Olausson

plotiostat.py - Plot IOSTAT logs

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Created on Tuesday, 26 February 2013 15:22

plotiostat.py is a little Python tool to plot the output from iostat. I can generate nice plots like the one on you see here wehre IOR is run on a storage box which is monitored with iostat. Te resulting log file was plotted using 

[UPDATE]

Current Version 1.3.1

Added the ability to use timestamps and annotate peaks. It's now also possible to plot the CPU stats.

[/UPDATE]

python plotiostat.py -f iostat_ior_xs053 -d sdc -c r/s -c w/s -c rMB/s -c wMB/s

 Download plotiostat.py

web2sms for N9/N950

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Created on Thursday, 08 December 2011 13:03

www2wsms and web2sms (from Christoph Keller) merged into web2sms for Meego Harmattan and will be released in some days.

In contrast to the preceding apps it uses a client-server infrastructureto send the SMS, this saves traffic for you device and should even work with a bad connection since it ony needs to transmitt a few bytes of data.

To indicate a successfull transfere web2sms uses PUSH notification.

The App is currently in the Nokia QA queue.

Its available by now!

http://store.ovi.com/content/221381

Publications I was involved

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Created on Thursday, 27 December 2012 02:56

Membrane interactions of two arginine-rich peptides with different cell internalization capacities.

J. Am. Chem. Soc., 2012, 134 (9), pp 4324–4331
DOI: 10.1021/ja2108382
Publication Date (Web): January 23, 2012

Structural Insights into Retinal Guanylylcyclase–GCAP-2 Interaction Determined by Cross-Linking and Mass Spectrometry

Biochemistry, 2012, 51 (24), pp 4932–4949
DOI: 10.1021/bi300064v
Publication Date (Web): May 25, 2012

Fixed o2online plugin for www2sms

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Created on Monday, 05 September 2011 09:15

The o2online.de plugin for www2sms is fixed.

Just use the build-in update function of www2sms to grab the latest file.

Second publication

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Created on Sunday, 25 November 2012 11:20

Here we go:

"Structure and dynamics of the two amphipathic arginine-rich peptides RW9 and RL9 in a lipid environment investigated by solid-state NMR and MD simulations"

Biomembranes, 2013, 1828 (2), pp 824–833
DOI: 10.1016/j.bbamem.2012.11.014
Publication Date (Web): February, 2012

o2online plugin outdated

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Created on Friday, 02 September 2011 18:51

O2 changed their web layout so the www2sms plug-in for this particular provider does no longer work.

I'll look into this.

Plot i7z log files

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Created on Wednesday, 31 October 2012 17:20

I wrote a littel tool to plot the data gathered by i7z.

 ploti7z.py

findflash.sh

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Created on Thursday, 18 August 2011 05:43

nd cached Flash player files

Some versions ago the Adobe Flash player stored cached files in /tmp/.
Actually the latest player sill stores the cached files in /var/tmp/ but uses a trick to hide them from the user:

The file is marked as deleted, but the file handler and data on disc still exist.
So what to do if you cached a video and want to save it for later use?

Look up the PID of "libflashplayer.so" (use "ps") and find files which are used by this process (using "lsof").
You will find something like "/tmp/Flash*".
This file does not exist in /tmp/ but we will find the file handler in "/proc/${PID}/fd/".
Just list the content (ls -la) and grep for "Flash".
You will find something like:

lrwx------ 1 blub blub 64 Aug 18 07:53 15 -> /tmp/FlashXXsJu3NC (deleted)

Now you can play the file with "mplayer /proc/${PID}/fd/15" or copy it with "cp /proc/${PID}/fd/15 ~/Desktop/myfile.flv".

This little script will do all the above for you and find any cached file by the Flashplayer

findflash.sh

My first scientific publication

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Created on Monday, 06 February 2012 18:45

Here it is:

"Molecular dynamics simulations reveal specific interactions of post-
translational palmitoyl modifications with rhodopsin in membranes"

J. Am. Chem. Soc., Just Accepted Manuscript
DOI: 10.1021/ja2108382
Publication Date (Web): January 23, 2012

There is more to come later this year ;-)

Harmattan on Gentoo

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Created on Saturday, 23 July 2011 17:51

Two days ago I got a Nokia N950 Dev Kit. I could have held it six days earlier in my hands,
if the mailman would have dropped a note in my mailbox that the package was delivered to a neighbor...
Anyway, now it's here and it's begging to be used :-)

After sorting out some problems with password less SSH authentication (changing user:!: to user:*: in /etc/passwd),
I also got Harmattan running in a scratchbox under Gentoo Linux.

Here are the short steps: