QNX Usability

And in a real time critical system, what happens if there is a performance
problem with disk access? What happens to your system? And if a program needs
to be swapped in, who will guarantee the time performance of the startup and
swap?

I of ten thought that QSSL should provide a flag for programs permitting them to
be swapped. However, since QNX’s intended targets are real-time systems, then
the RAM requirements can be known before the system starts up. This is in
contrast to a (let’s call it) user service system, where the user could want to
run an ‘infinite’ number of programs depending upon the user’s tasks.

Barry


David Heinrich wrote:

Under QNX there is no SWAP file ( I assume that’s what you mean my cache
file on
a separate partion)
No SWAP file?? What happens if one runs out of RAM? How does the OS deal
with the lack of adequate RAM?? I’ve always thought that it was standard
policy, and good for performance, to have a fixed SWAP file that’s at
least twice or thrice the size of one’s RAM.

QRTP it’s on it’s way and will probably fit your bill better then QNX4
What is the difference between QNX4 OS, Photon OS, and QRTP? Different
versions of the same base product, more advanced versions(i.e., as in
Win3.1, Win95, Win98, Win2000, WinME)

If you look for a car that feels like a BMW but that sounds like a Ferrari,
you won’t find it <snip
Well, maybe…there are Porsches, which have the power of a Ferarri and
the inside Luxery(at least 4 2 ppl) of a BMW…but I get your point –
always a compromise.

snip


QNX Training at Your Desktop…with Your Success Guaranteed!
http://www.igetitnow.com

In article <8kutu7$1kca$1@nl.novosoft.ru>,
“ian zagorskih” <ianzag@mail.ru> writes:

[SNIP]

personally i use qnx4 as my daily desktop system, but i don’t need most
of things you mentioned and on the other hand need just clean stable
comfortable networking development environment. this case qnx4 imho is the
best. of couse, bsd/linux is very well too, but it just has become a habbit
to use qnx4 for such tasks > :slight_smile:

Thanks for your attention,
Ian M. Zagorskih, Software Developer, Novosoft Ltd.
E-Mail: > ianzag@pochta.net > ICQ 28632525
Web: > http://www.novosoft.ru

Gee, I thought I was the only one! I’ve been using QNX 4.2n for years as
my daily machine, mostly because I’m a QNX SysAdmin and oft-time P/A.

I run with MetroLink X11R5 by/for QNX for my GUI. One box is a lowly 100Mhz
Pentium I, the other a 3nnMHz Pentium II. Neither have more than 72Mb RAM,
both have 2Gb SCSI HDDs, with external tape, Jaz, and/or Zip drives.

I’ve ported lots and lots of apps (X and console) with the Watcom 9.5 and
10.6 development package, and scratch written many, as well. Most well-
written apps port very easily; BSD generally the best, Linux often times
the worst (no flames, please, I’m calling it as I see it), with Solaris,
SCO, et.al. somewhere in between.

I use chimera (you can’t have 1.71 yet!), lynx, mutt, knews (no, not from
the KDE project), xcoral, xpaint, xv, nedit occasionally, vedit, vi, mc,
bitmap, pixmap, editres, xfig, gs and ghostview, xcalendar, a couple of
calculators, rxvt, xqsh, and bunch of clocks ( :slight_smile: ), xarchie and xgopher
occasionally, xdir, ssh, vplay, mpeg2play, xanim, and on and on. My window
manager of choice is VTWM (you can’t have 5.4.6 yet!).

My point is two-fold:

  • You can have a nice QNX 4.2n desktop box, but a great deal of effort
    will go into making it so. You’ll not be buying it off the shelf. The
    upside is that you’ll be quite fluent with the platform, the downside
    is that it’ll take time. Note also that this is not inexpensive, from
    your wallet’s perspective.
  • I can remember my X server crapping out for lack of RAM just once or
    twice, but I was rather asking for it. I’ll bet the times I’ve brought
    the OS down accidentally/seriptitiously/unanticipatedly can be counted
    on one hand through the years. It’s never come down all by itself or
    by bad applications. I multitask rather heavily, often with code builds
    and FTP transfers. QNX 4.25 is rock-solid stable.

Maybe I’m a zealot? Or just crazy?
Dave


__________________ \ D. J. HAWKEY JR. / /
_
/\ hawkeyd@visi.com /_
____________/
http://www.visi.com/~hawkeyd/

In article <HGLg5.2815$6E.738053@ptah.visi.com>, hawkeyd@visi.com says…

In article <8kutu7$1kca$> 1@nl.novosoft.ru> >,
“ian zagorskih” <> ianzag@mail.ru> > writes:

[SNIP]


[ clip … ]
I use chimera (you can’t have 1.71 yet!), lynx, mutt, knews (no, not from
the KDE project), xcoral, xpaint, xv, nedit occasionally, vedit, vi, mc,
bitmap, pixmap, editres, xfig, gs and ghostview, xcalendar, a couple of
calculators, rxvt, xqsh, and bunch of clocks ( > :slight_smile: > ), xarchie and xgopher
occasionally, xdir, ssh, vplay, mpeg2play, xanim, and on and on.

… and StarOffice at next? → http://www.openoffice.org

Regards

Armin

My window
manager of choice is VTWM (you can’t have 5.4.6 yet!).

My point is two-fold:

  • You can have a nice QNX 4.2n desktop box, but a great deal of effort
    will go into making it so. You’ll not be buying it off the shelf. The
    upside is that you’ll be quite fluent with the platform, the downside
    is that it’ll take time. Note also that this is not inexpensive, from
    your wallet’s perspective.
  • I can remember my X server crapping out for lack of RAM just once or
    twice, but I was rather asking for it. I’ll bet the times I’ve brought
    the OS down accidentally/seriptitiously/unanticipatedly can be counted
    on one hand through the years. It’s never come down all by itself or
    by bad applications. I multitask rather heavily, often with code builds
    and FTP transfers. QNX 4.25 is rock-solid stable.

Maybe I’m a zealot? Or just crazy?
Dave


__________________ \ D. J. HAWKEY JR. / /
_
/\ > hawkeyd@visi.com > /_
____________/
http://www.visi.com/~hawkeyd/

Firstly, I’d like to thank all of you who responded to my first question > :wink:

Secondly, I’m using Windows95 right now – for those of you who don’t know,
Win95 is like one great big terminal error. I’m probably going to buy
a new PC soon, and am considering several OS’ as either stand-alone or dual
boot OS’:

FreeBSD
OpenBSD
Linux(Slackware, Stampede, or Debian)

Whats you knowledge of UNIX like? they are good OS’s however, it is dependent
on your needs

BeOS

Very limited hardware support

IRIX

Not available for Intel based CPUS (Only MIPS SGI CPUs)

Amiga (the new remake of Amiga, and probably as a dual boot)

Does the name AMIGA give a hint it will not work on an intel based machine?

V2OS(also, probably only as a dual boot)

what on gods green earth is that?

OS/2

Bugger all hardware and software support, donot try it, I have used it and it
was a nightmare!

Athe-OS

CRAP, just one word!

RISCOS

Does the name RISC give a hint that it is only for RISC based computers?

QNX/Neutrino

Not out yet, give it a shot, ya never know!

Ok, what I’m wondering is, is QNX a viable OS for a personal private user
like myself . . . is the GUI easy to use, and does it provide as much
funcitonality as the Win95 GUI? Also, are there programs in it that allow
me to do the following, or does it support the following:

(1) Cable internet access(Road Runner

is it pppoe (port to port protocol over ethernet, if so, you will need to port
the pppoe client from the sourceforge site).?

(2) Printer compatability(preferrably with a Xeros WorkCentre 450c)

What is brand is Xeros? Throw it out and get a mainstream printer (HP, Epson)
and all your headache will be over!

(3) Gaming(and preferrably a type of gaming client which would allow
multiplayer, such as Kali or Kahn)

Donot know whether these have been ported yet!

(4) A sophisticated and intuitive e-mail/newsgroup program like
Outlook Express(preferrably without the security bugs)

most likely, except not has bloated and useless as Outlook.

(5) A sophisticated browser like Opera(or preferrably a way to port
the beta Linux Opera to it)

Voyager

(6) A sophisticated catch-all word processing program which allows
you to do spreadsheets, databases, communications, word-documents

like a works type prog, probably, by a thirdparty supplier

(7) A sophisticated graphics program(s) which allows for image
editing, and a simple one like MS’ Paint

the GIMP (GNU Image Manipulator

(8) Sophisticated 3D creation programs like Bryce or Poser

hello! this is an intel machine, if you want to do hardout 3d creation get a SGI
O2 workstation!

(9) Compatability with Voice Command programs or the ability to port
Linux Voice controlled programs to it

yep, you can port, I donot know how successfull it would be?

(10) A high level of customizability and tweakability . . . i.e., I
want to be able to change every aspect of how it looks, and how it functions;
for example, I want to be able to define how many concurrent connections it
connects
to the net with, the MaxMTU values, and make a number of other performance
tweaks, such as
defining the size of the cache file, or(preferably) making a
cache file on a
separate partition)

This MTU crap has gone on for long enough, here is I will, for the record
correct it, MTU TWEEKING IS A LOAD OF CRAP! than goodness I have that out of my
system, this “MTU” tweaking is an old wives tale than provides no performance
increase, I have tried it and as a result my surfing and download speeds
reduced.

And one question: how does it compare to BeOS and V2OS in terms of
responsiveness and speed? How much of it was, like V2OS, coded in
assembler?

Have never seen it running, however, from the screen shots it should be a little
speed demon

Well, I realize that’s a long list, but I like to do adequate research.

P.S.: If anyone knows of a place where I could test out different OS’ on
platforms – so I could see first hand how they operate – please tell me.
Thanks.


“He who controls the past commands the future. He who commands the future
conquers the past.” – Orwell

“Gardiner Family” <kiwipop@ihug.co.nz> schrieb im Newsbeitrag news:39CEBACD.C3FFDC9E@ihug.co.nz

Amiga (the new remake of Amiga, and probably as a dual boot)

Does the name AMIGA give a hint it will not work on an intel based machine?

No, I think he mean the new AmigaOS, which runs under Linux on an intel based

machine. But today, this is only a developer version, not for the end-user.
The final new AmigaOS will run on its own hardware. If this hardware is
availabily, the soft will too.
cu, Yogi

BeOS

Very limited hardware support

if he checks the compatability lists for both Beos and RTP
he could try both on his new x86 machine should he see fit to
get the right kit.

Amiga (the new remake of Amiga, and probably as a dual boot)

Does the name AMIGA give a hint it will not work on an intel based machine?

the Key words here are NEW and REMAKE he`s refering to the Elate
realtime OS that the new managment at Amiga Inc are working with, the current
beta developer release runs on x86 based hardware and while not at the same
advanced stage as RTP (it runs ontop of linux at this time, it will at some
point in the future run stand alown.

it should also be pointed out to the readers that dont know, that many of
the developers within the Phx group currently working with RTP producing
products for the future are/were amiga devs also.

its probably safe to assume that many of the current Phx devs will also
port their products to the new amiga os once that is at a point that
end users can buy it, infact the Elate OS has been ported to the older QNX4
and should Amiga inc or the Elate people see fit to make a RTP release
it would be possible to run the new amiga os ontop of RTP just as it
runs ontop of linux in beta now.

on pure speculation on my part, it might also be possible for QSSL
to make a remapping layer so that qnx4 can run within the new RTP,
and in such a case perhaps the current qnx4 Elate layer could run as is.

Not out yet,

perhaps sooner than you think

give it a shot, ya never know!

(7) A sophisticated graphics program(s) which allows for image
editing, and a simple one like MS’ Paint

the GIMP (GNU Image Manipulator

GIMP is ported to RTP already, or indeed something such as photogenics
eather in an amiga emulator running in RTP (JIT UAE when it matures)
or the linux port useing lxrun, at least until it and other products
are ported to RTP.

(9) Compatability with Voice Command programs or the ability to port
Linux Voice controlled programs to it

yep, you can port, I donot know how successfull it would be?

cant really say, as im not a programmer, but i did manage to successfully make installthe Dopus4 linux port calledworker`
that you can find a link to (and much more) at http:www.qnxstart.com
one of our first phoenix partner sites.

i noticed a reply there that says some of the beta testers have
had Gnome binarys running in RTP as is without a recompile, although havent
had time to try that on the gnome commander i downloaded last night.

Well, I realize that’s a long list, but I like to do adequate research.

as well as this comp.os.qnx, you might also pop over to the qnx start above
and the moobunny site were many phoenix members hang out, i dont have the
bunny URL handy but ask around or use a search engine moobunny and get
over there.

Phx will setup mailing lists should the demand be there from the
new people, also QSSL (the makers of RTP) are in the process of
adding several RTP ml`s for the developers to populate at news:inn.qnx.com.


Paul May, Manchester, UK
Team Phoenix

Gardiner Family <kiwipop@ihug.co.nz> wrote:

Firstly, I’d like to thank all of you who responded to my first question > :wink:

Secondly, I’m using Windows95 right now – for those of you who don’t know,
Win95 is like one great big terminal error. I’m probably going to buy
a new PC soon, and am considering several OS’ as either stand-alone or dual
boot OS’:

FreeBSD
OpenBSD
Linux(Slackware, Stampede, or Debian)

Whats you knowledge of UNIX like? they are good OS’s however, it is dependent
on your needs


BeOS

Very limited hardware support


IRIX

Not available for Intel based CPUS (Only MIPS SGI CPUs)


Amiga (the new remake of Amiga, and probably as a dual boot)

Does the name AMIGA give a hint it will not work on an intel based machine?


V2OS(also, probably only as a dual boot)

what on gods green earth is that?


OS/2

Bugger all hardware and software support, donot try it, I have used it and it
was a nightmare!


Athe-OS

CRAP, just one word!


RISCOS

Does the name RISC give a hint that it is only for RISC based computers?


QNX/Neutrino

Not out yet, give it a shot, ya never know!



Ok, what I’m wondering is, is QNX a viable OS for a personal private user
like myself . . . is the GUI easy to use, and does it provide as much
funcitonality as the Win95 GUI? Also, are there programs in it that allow
me to do the following, or does it support the following:

(1) Cable internet access(Road Runner

is it pppoe (port to port protocol over ethernet, if so, you will need to port
the pppoe client from the sourceforge site).?


(2) Printer compatability(preferrably with a Xeros WorkCentre 450c)

What is brand is Xeros? Throw it out and get a mainstream printer (HP, Epson)
and all your headache will be over!


(3) Gaming(and preferrably a type of gaming client which would allow
multiplayer, such as Kali or Kahn)

Donot know whether these have been ported yet!


(4) A sophisticated and intuitive e-mail/newsgroup program like
Outlook Express(preferrably without the security bugs)

most likely, except not has bloated and useless as Outlook.


(5) A sophisticated browser like Opera(or preferrably a way to port
the beta Linux Opera to it)

Voyager


(6) A sophisticated catch-all word processing program which allows
you to do spreadsheets, databases, communications, word-documents

like a works type prog, probably, by a thirdparty supplier


(7) A sophisticated graphics program(s) which allows for image
editing, and a simple one like MS’ Paint

the GIMP (GNU Image Manipulator


(8) Sophisticated 3D creation programs like Bryce or Poser

hello! this is an intel machine, if you want to do hardout 3d creation get a SGI
O2 workstation!


(9) Compatability with Voice Command programs or the ability to port
Linux Voice controlled programs to it

yep, you can port, I donot know how successfull it would be?


(10) A high level of customizability and tweakability . . . i.e., I
want to be able to change every aspect of how it looks, and how it functions;
for example, I want to be able to define how many concurrent connections it
connects
to the net with, the MaxMTU values, and make a number of other performance
tweaks, such as
defining the size of the cache file, or(preferably) making a
cache file on a
separate partition)

This MTU crap has gone on for long enough, here is I will, for the record
correct it, MTU TWEEKING IS A LOAD OF CRAP! than goodness I have that out of my
system, this “MTU” tweaking is an old wives tale than provides no performance
increase, I have tried it and as a result my surfing and download speeds
reduced.



And one question: how does it compare to BeOS and V2OS in terms of
responsiveness and speed? How much of it was, like V2OS, coded in
assembler?


Have never seen it running, however, from the screen shots it should be a little
speed demon


Well, I realize that’s a long list, but I like to do adequate research.

P.S.: If anyone knows of a place where I could test out different OS’ on
platforms – so I could see first hand how they operate – please tell me.
Thanks.


“He who controls the past commands the future. He who commands the future
conquers the past.” – Orwell

2 points on your response, one a comment, one a question first the question, my
definition of a good browser is one that can handle html/dhtml/xml/javascript,
can voyager do that praytell?

the comment: for the unix side for 3d, I can emulate bryce 2 and poser with
win4lin (and do), and natively blender is a good one to, not to mention other
good multimedia toys like mainactor, the gimp, etc, I would love to see the
merge drivers win4lin uses to be ported to qnx, would make the transition for
newbies easier.