minix buffer

computer · 02-08-2006, 12:56 PM

hi

Has anyone used minix operating system before? if yes did you modify the cache buffer to get a good performance?

I am new to the minix and dont know really how to measure the perferomance by altering the buffer cache.

Any explanation on operation of buffer cache(minix), and how to add codes to buffer cache to get better performance will be great.

thank you

satinet · 02-08-2006, 04:42 PM

i dont think this sight is the best place to get advice on minix.

even though linux is based on minix. not sure most people know it.

no minix forums??

jlliagre · 02-09-2006, 04:51 AM

Quote:

Originally Posted by satinet

even though linux is based on minix.

This is slightly incorrect, the first Linux released was written from scratch and was free of Minix code.
However, Linus devlopment platform was Minix, and he built Linux by using Minix as a "scaffold", replacing each part of it by its own code.

A difference too is that Linux is (only) a kernel, while Minix is a whole Unix like environment.

satinet · 02-09-2006, 05:23 AM

when i said based i meant in terms of design philosophy rather than code base....

jlliagre · 02-09-2006, 06:56 AM

Well, quite the opposite.
Torvalds was strongly disagreeing with Tanenbaum's design philosopy, both technically, Minix micro-kernel vs Linux all-in-one approach, and openness, Minix wasn't released under an Open Source license, at that time at least.

Of course, it can be said that both Minix and Linux share the same design pattern, being both Unix clones.

computer · 02-09-2006, 07:41 AM

hi everyone,

I couldnt find any forums for minix so i posted it here...

Actually minix is a mini version of linux So....

what about my problem guys? nobody answered my question

satinet · 02-09-2006, 07:46 AM

no it's not.....

http://en.wikipedia.org/wiki/Minix

computer · 02-09-2006, 08:16 AM

lol k its not so what about my problem...

satinet · 02-09-2006, 10:12 AM

with regard to your question:

doing this is a common performance tweak on sco unix. I presume you are talking about the amount of RAM allocated to disk cache.

depends on how much ram vs how much I/O you have....

well, maybe that's not what you are talking about. i have no idea how to do it.

i love www.wikipedia.org best site on the web bar none. well maybe google...

alred · 02-11-2006, 11:03 AM

do you have a copy of example.txt(.gz??) for minix ??
they mentioned increasing the size of *buffer cache* , setting ram disk to 0 and more processes in *config.h* and rebuilding a the kernal ... this is for minix 2 though ...

.

satinet · 02-11-2006, 01:33 PM

this sounds similar to what i did in sco unix. there i went and changed some kernel parameters to increase the memory devoted to disk caching and then rebuilt the kernal and rebooted.

however i wouldnt know where to start in minix.. sorry

aldimeneira · 02-13-2006, 11:34 PM

I don't even know that Minix can be downloaded now!

jlliagre · 02-14-2006, 01:31 AM

Quote:

Originally Posted by aldimeneira

I don't even know that Minix can be downloaded now!

Have you been at http://www.minix3.org/ ?

alred · 02-20-2006, 06:00 AM

>> "I don't even know that Minix can be downloaded now!"

http://mirrors.kernel.org/oldlinux/Linux.old/Minix/
here is another source , a kind of "source tree" for older minix

http://listserv.nodak.edu/archives/minix-l.html
and here is the minix list dated all the way back to "January 1991, week 1"

poke around if you are free ...

ps :: vary much thanks for the minx 3 link ...

.

satinet · 02-20-2006, 06:26 AM

minix 3 is the 1st thing that comes up in google. didn't you see that??