DTrace-like analysis possible with future Linux kernels?
Quoted 6 lines · Christoph Halder
True, to europeans this sounds far too overenthusiastic - almost like a commercial - and will most certainly lead to the impression, that the article is not very serious.
Europeans try to write serious articles VERY neutral - any personal opinion(s) will only be a short statement at the very end of the article.
No, it is definitely not overestimated.
It is more likely to rather be the opposite and you will find this out if you try to use dtrace or attend a demo.
Dou you know of any other system where you can say:
Print me a strack trace with symbols for all processes on this computer (even stripped ones) that call gettimeofday() within the next few seconds.
Note that you do not need a special kernel, no reboot, no restart of applications.
There are a lot more possibilities including tracing kernel routines on a production kernel but it would take too long to describe them....
Jörg
Signature · 4 lines
EMail:[email protected] (home) Jörg Schilling D-13353 Berlin [email protected] (uni) If you don't have iso-8859-1 [email protected] (work) chars I am J"org Schilling URL: http://www.fokus.fraunhofer.de/usr/schilling ftp://ftp.berlios.de/pub/schily
Quoted 8 lines · Joerg Schilling
Dou you know of any other system where you can say:
Print me a strack trace with symbols for all processes on this computer (even stripped ones) that call
gettimeofday()within the next few seconds.Note that you do not need a special kernel, no reboot, no restart of applications.
Linux, BSD since 1990 or so.... For that matter I can do the same for dynamically linked applications at library level. The difference is that I don't have a happy point-and-click UI for it I have to go write a little bit of code and the efficiency level. The SuSE proposed patch for syscall restriction conveniently offers a way to remove the overhead.