#include <hallo.h> * Henrique de Moraes Holschuh [Thu, Aug 25 2005, 12:17:56PM]:
> Well, as long as you don't start using stuff that breaks often, or that > loads a ton of crap dynamically, or (even worse) is in /usr instead of /bin > or /sbin... > > Note that using dash is probably MUCH faster than perl. I don't know about > zsh. Well, I made some tests and can proof your claim. I have just tried a simple version of the skeleton script with /bin/true as the daemon, a simple config file to be read and optionaly a grep call in the script. The perl version was a straight-forward port of the script with internal grep method. Shell compatible config file reader was stolen from apt-cacher. Tests run with a loop like: time for x in `seq 1000` ; do perl skeleton.pl start ; perl skeleton.pl stop; done The results reflected my expectations, speed order: dash < ... < perl < zsh < bash; Perl is a lot faster than what some perl hatters try to make us believe. With external program calls, everything became really slow while usage of the internal Perl implementation demonstraged its advantage. perl < ... < dash < ... < zsh < bash Conclusion: usage of many (even simple) external programs is evil, though it may improve readability for "some people". Replacing setting /bin/sh link to dash instead of bash and having more than 100 init scripts I can assume the whole boot would be 3s faster (1900Mhz box). Personaly, I would write all init scripts in Perl but unfortunately compatibility considerations force us to do things that suck. Eduard. simple skeleton: dash: real 0m6.538s user 0m1.924s sys 0m3.880s bash: real 0m30.406s user 0m18.101s sys 0m8.197s perl: real 0m15.195s user 0m7.388s sys 0m7.324s zsh: real 0m19.458s user 0m8.773s sys 0m9.429s with external program (grep in the defaults file): dash: real 0m23.050s user 0m14.409s sys 0m6.664s perl: real 0m18.820s user 0m7.452s sys 0m7.560s bash: real 0m46.683s user 0m32.754s sys 0m13.105s more external programs (grep ... | cut ... | wc ...): dash: real 0m40.917s user 0m30.058s sys 0m10.089s bash: real 1m2.397s user 0m43.911s sys 0m16.525s Perl: (equivalent internal code) real 0m15.604s user 0m7.760s sys 0m7.444s -- <youam> nach duesseldorf zu freenet schaffe ich in einer verbindung auch ~5mb/s, ansonsten nur ziehend z.b. ftp.de.debian.org (dresden) ~4mb/s <Zomb> unglaublich... die Bandbreitensäue <youam> Zomb: hey, _du_ schickst doch für jeden einzelnen umlaut zwei byte über die leitung... -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]