June 1st, 2006 04:58 PM
You can spell check it, I can copy over and edit it for you if needed.
June 1st, 2006 04:58 PM
I think that RoadClosed has a good point with the "backwards compatibility" angle?
I have software that defragments and compacts the Windows registry hives. It doesn't do that with Windows 2000 (NT5) or XP because they have been enhanced to handle this.
It certainly was an issue with 9x/ME
MS seem to have dumped this "backwards compatibility icon" when they went to XP? I expect them to improve rapidly, as it is a fairly easy and obvious area, and the old hardware won't really support the new operating systems.
My suggestion is that MS were trying to corner the OS market in the commercial sector (the only people who could really afford computers back then) so this "backwards compatibility" became some sort of sacred cow?
Just a thought
If you cannot do someone any good: don't do them any harm....
As long as you did this to one of these, the least of my little ones............you did it unto Me.
What profiteth a man if he gains the entire World at the expense of his immortal soul?
June 1st, 2006 05:15 PM
It was a sacred cow and perhaps the reason linux has succeeded. Anyone who was around when the transition for FAT16 to FAT32 KNOWS the issues. And that was backward compatible. For the very first kernal linux FS was superior. But did it EVER gain major performance advantage ouside extreme applications? I would say no.
became some sort of sacred cow?
But now as hard drives are getting bigger and bigger. The advantage becomes apparent and yes MS knows this.
West of House
You are standing in an open field west of a white house, with a boarded front door.
There is a small mailbox here.
June 1st, 2006 05:35 PM
June 1st, 2006 06:54 PM
Re: Why one OS VS another isn't over played here
Gore, darling . I'm starting on tech support in Sun this July and will have more time to dig in to different OSs, while getting payed for doing that, so I'll be definately up for discussing their pros and cons
Originally posted here by gore
It seems when I decide I want to make a post or get a decent discussion going about OSs, it takes maybe one day before someone says "This is been talked to death and it's old" or I get called a Microsoft basher.
I don't think this has been done to death and I sure as hell don't think we should stop talknig about it.
Simple, this is the OS forum, it was made to talk about OSs. That has yet to of happened very often though. The only thing we see here is questions.
So, in the near future I'll be starting another thread about Windows and other OSs. However, this is a pre warning:
Don't think for one minute someone is going to ruin it with "This is my OS is better than yours bull"....Not happening.
Maybe people would have realised this had there been more discussions on OSs here, but because people seem to think that once a thread about Unix and Windows was done it didn't need to be done again, I have to explain it:
MS-DOS is different from.... Well Windows.
Windows 3.1 and Windows 95 are not the same thing.
Windows NT was a complete re-design from Windows 95. And at that time Linux was very different than it is now.
Windows 2000 came out and so did another version of the Linux Kernel. Why did we not talk about it?
Windows XP came out as did the new Linux Kernel.... Again, another chance for discussion on new changes and features in both OSs.
Well, Windows Vista is coming. The 2.6 Kernel for Linux isn't the same thing it was, as Linus wants to slow down on adding features and start fixing up issues. Free BSD also has a new release.
We could have a GREAT discussion on the differences from past releases... And we could talk about who is using them... How do they like it?
And we are. For the Closet zelots (Windows users who pretend they only want fairness when really they are Windows zelots in the same way we have Linux zealots who ruin every discussion I try to get going here) if you think for one minute of ruining this new discussion coming up, here is a warning, I WILL delete your posts. I WILL re-open the thread if need be. We CAN talk about things without "My OS is better" and if you don't like it, select the option that says front page display, and un-tick OSs.
Free BSD 6
SUSE Enterprise 10
Lots of topics.
Don\'t post if you\'ve got nothing constructive to say. Flooding is annoying
June 1st, 2006 07:02 PM
June 1st, 2006 09:44 PM
I was off working on a phone system cut over and was thinking about Linux and MS and this defrag debate. I had to smile because there is one more thing...
Just because a defrag tool does not exist for a file system doesn't necessarily mean it doesn't need defraggin'ation. It means there isn't one that exists. That's all. I mean no one has written one. Either because it is difficult or impossible because of the implementation of the file system. Or no one thinks it is necessary. Having said that. ReiserFS 4 has what in development? A defragger.
They "used" to say Linux didn't need anti-virus too. Tail packing is a tool in Reiser the eliminates excessive fragmentation (note I didn't say stop it). And it's only possible (to my knowledge) using meta data to store file tags. But even the Reiser folks recommend disabling it in resource critical applications. The performance hit on tracking file location isn't worth the benefit of decreased fragmentation. So it makes sense in some applications to reserve defragging to offline functions. Such as maintenance windows and patch time. I can't remember where I read about ReiserFS v4 and their defrag. Stay tuned. Linking follows.
//EDIT Instead of the article I went right for the source. The Reiser dudes
Hmmm seems the move is on from on the fly defragging to periodic defragging during system inactivity. Could the be the reason windows has stayed their course with scheduled defragging? I only said that to jab some Linux freakzoids. In fun. But as you see that is the methodology Reiser is going to. Because it does leave more resources to be used in real time possibly increasing efficiency quite a bit. Gore, could you imagine running Doom3 in full on resolution with a high overhead FS taking the slow way to write data, journaling it and defragging it on the fly? Then comparing disk performance with Fat32.
Another way of escaping from the balancing time vs. space efficiency tradeoff is to use a repacker. 80% of files on the disk remain unchanged for long periods of time. It is efficient to pack them perfectly, by using a repacker that runs much less often than every write to disk. This repacker goes through the entire tree ordering, from left to right and then from right to left, alternating each time it runs. When it goes from left to right in the tree ordering, it shoves everything as far to the left as it will go, and when it goes from right to left it shoves everything as far to the right as it will go. (Left means small in key or in block number:-) ). In the absence of FS activity the effect of this over time is to sort by tree order (defragment), and to pack with perfect efficiency.
Reiser4.1 will modify the repacker to insert controlled "air holes", as it is well known that insertion efficiency is harmed by overly tight packing.
I hypothesize that it is more efficient to periodically run a repacker that systematically repacks using large IOs than to perform lots of 1 block reads of neighboring nodes of the modification points so as to preserve a balancing invariant in the face of poorly localized modifications to the tree.
But their is no question that linux based file systems are more advanced. And windows as a usable OS is more advanced than linux.
West of House
You are standing in an open field west of a white house, with a boarded front door.
There is a small mailbox here.
June 3rd, 2006 02:01 PM
The way I've sen defragging for Linux and UNIX explained was that if you don't have more than 90% of the HD used up, you won't see more than a percent or so.
A lot of linux books I have and BSD books I have say this.
June 3rd, 2006 02:16 PM
Oh by the way, no I can't imagine playing Doom 3 on that... Well I can, what I can't imagine is it on Fat32, because Doom 3 only runs on Windows 2000 and XP, and I don't know anyone using Fat anything for a file system. teehee.
I also fully support ReiserFS. I use it on everything. Except floppy disks.
June 4th, 2006 12:53 AM
Something I should probably put in Cosmos. I really liked this and I hope everyone does read the somewhat long... But very good story here:
[ From http://www.performancecomputing.com/.../9809of1.shtml ]
The Elements Of Style: UNIX As Literature
If there's nothing different about UNIX people, how come
so many were liberal-arts majors? It's the love of words
that makes UNIX stand out.
In the late 1980s, I worked in the advanced R&D arm of the Silicon
Valley's regional telephone company. My lab was populated mostly by
Ph.D.s and gifted hackers. It was, as you might expect, an all-UNIX
The manager of the group was an exception: no advanced degree, no
technical credentials. He seemed pointedly self-conscious about it. We
suspected he felt (wrongly, we agreed) underconfident of his education
One day, a story circulated through the group that
confirmed our suspicions: the manager had confided he was indeed
intimidated by the intelligence of the group, and was taking steps to
remedy the situation.
His prescription, though, was unanticipated: "I
need to become more of an intellectual," he said. "I'm going to learn
Needless to say, we made more than a little fun out of this. I mean,
come on: as if UNIX could transform him into a mastermind, like the
supplicating scarecrow in "The Wizard of Oz." I uncharitably imagined
a variation on the old Charles Atlas ads: "Those senior engineers will
never kick sand in my face again."
But part of me was sympathetic: "The boss isn't entirely wrong, is he?
There is something different about UNIX people, isn't there?" In the
years since, I've come to recognize what my old manager was getting
I still think he was misguided, but in retrospect I think his
belief was more accurate than I recognized at the time.
To be sure, the UNIX community has its own measure of technical
parochialism and nerdy tunnel vision, but in my experience there
seemed to be a suspicious overrepresentation of polyglots and
liberal-arts folks in UNIX shops.
I'll admit my evidence is sketchy and anecdotal. For instance, while banging out a line of shell, with
a fellow engineer peering over my shoulder, I might make an
intentionally obscure literary reference:
if test -z `ps -fe | grep whom`
# Let's see for whom the bell tolls.
UNIX colleagues were much more likely to recognize and play in a way
I'd never expect in the VMS shops, IBM's big-iron data centers, or DOS
ghettos on my consulting beat.
Being a liberal-arts type myself (though I cleverly concealed this in
my resume), I wondered why this should be true.
explanation--UNIX's historical association with university computing
environments, like UC Berkeley's--didn't hold up over the years; many
of the UNIX-philiacs I met came from schools with small or absent
computer science departments.
There had to be a connection, but I had no plausible hypothesis.
It wasn't until I started regularly asking UNIX refuseniks what they
didn't like about UNIX that better explanations emerged.
Some of the prevailing dislike had a distinctly populist
flavor--people caught a whiff of snobbery about UNIX and regarded it
with the same proletarian resentment usually reserved for highbrow
institutions like opera or ballet.
They had a point: until recently, UNIX was the lingua franca of computing's upper crust. The more
harried, practical, and underprivileged of the computing world seemed
to object to this aura of privilege.
UNIX adepts historically have been a coddled bunch, and tend to be proud of their hard-won
knowledge. But these class differences are fading fast in modern
Now UNIX engineers are more common, and low-
or no-cost UNIX variations run on inexpensive hardware. Certainly UNIX
folks aren't as coddled in the age of NT.
There was a standard litany of more specific criticisms: UNIX is
difficult and time-consuming to learn. There are too many things to
remember. It's arcane and needlessly complex.
But the most recurrent complaint was that it was too
text-oriented. People really hated the command line, with all the
utilities, obscure flags, and arguments they had to memorize. They
hated all the typing.
One mislaid character and you had to start
over. Interestingly, this complaint came most often from users of the
GUI-laden Macintosh or Windows platforms.
People who had slaved away
on DOS batch scripts or spent their days on character-based terminals
of multiuser non-UNIX machines were less likely to express the same
Though I understood how people might be put off by having to remember
such willfully obscure utility names like cat and grep, I continued to
be puzzled at why they resented typing.
Then I realized I could connect the complaint with the scores of "intellectual elite" (as my
manager described them) in UNIX shops. The common thread was
wordsmithing; a suspiciously high proportion of my UNIX colleagues had
already developed, in some prior career, a comfort and fluency with
text and printed words.
They were adept readers and writers, and UNIX played handily to those strengths. UNIX was, in some sense,
literature to them. Suddenly the overrepresentation of polyglots,
liberal-arts types, and voracious readers in the UNIX community didn't
seem so mysterious, and pointed the way to a deeper issue: in a world
increasingly dominated by image culture (TV, movies, .jpg files), UNIX
remains rooted in the culture of the word.
UNIX programmers express themselves in a rich vocabulary of system
utilities and command-line arguments, along with a flexible, varied
grammar and syntax.
For UNIX enthusiasts, the language becomes second
Once, I overheard a conversation in a Palo Alto restaurant:
"there used to be a shrimp-and-pasta plate here under ten bucks. Let
me see...cat menu | grep shrimp | test -lt $10..." though not
syntactically correct (and less-than-scintillating conversation), a
diner from an NT shop probably couldn't have expressed himself as
With UNIX, text--on the command line, STDIN, STDOUT, STDERR--is the
primary interface mechanism: UNIX system utilities are a sort of Lego
construction set for word-smiths.
Pipes and filters connect one utility to the next, text flows invisibly between. Working with a
shell, awk/lex derivatives, or the utility set is literally a word
Working on the command line, hands poised over the keys uninterrupted
by frequent reaches for the mouse, is a posture familiar to wordsmiths
(especially the really old guys who once worked on teletypes or
It makes some of the same demands as writing an essay. Both require composition skills. Both demand a thorough knowledge of grammar and syntax. Both reward mastery with powerful,
At the risk of alienating both techies and writers alike, I also
suggest that UNIX offers something else prized in literature: a
coherence, a consistent style, something writers call a voice.
It doesn't take much exposure to UNIX before you realize that the UNIX
core was the creation of a very few well-synchronized minds.
I've never met Dennis Ritchie, Brian Kernighan, or Ken Thompson, but after
a decade and a half on UNIX I imagine I might greet them as friends,
knowing something of the shape of their thoughts.
You might argue that UNIX is as visually oriented as other OSs. Modern
UNIX offerings certainly have their fair share of GUI-based OS
In practice though, the UNIX core subverts them; they end
up serving UNIX's tradition of word culture, not replacing it.
Take a look at the console of most UNIX workstations: half the windows you
see are terminal emulators with command-line prompts or vi jobs
Nowhere is this word/image culture tension better represented than in
the contrast between UNIX and NT. When the much-vaunted UNIX-killer
arrived a few years ago, backed by the full faith and credit of the
Redmond juggernaut, I approached it with an open mind.
But NT left me cold. There was something deeply unsatisfying about it. I had that
ineffable feeling (apologies to Gertrude Stein) there was no there
Granted, I already knew the major themes of system and network
administration from my UNIX days, and I will admit that registry
hacking did vex me for a few days, but after my short scramble up the
learning curve I looked back at UNIX with the feeling I'd been demoted
from a backhoe to a leaf-blower.
NT just didn't offer room to move. The one-size-fits-all, point-and-click,
we've-already-anticipated-all-your-needs world of NT had me yearning
for those obscure command-line flags and man -k.
I wanted to craft my own solutions from my own toolbox, not have my ideas slammed into the
visually homogenous, prepackaged, Soviet world of Microsoft Foundation
NT was definitely much too close to image culture for my comfort:
endless point-and-click graphical dialog boxes, hunting around the
screen with the mouse, pop-up after pop-up demanding my attention.
The experience was almost exclusively reactive. Every task demanded a
GUI-based utility front-end loaded with insidious assumptions about
how to visualize (and thus conceptualize) the operation.
I couldn't think "outside the box" because everything literally was a box. There
was no opportunity for ad hoc consideration of how a task might
alternately be performed.
I will admit NT made my life easier in some respects. I found myself
doing less remembering (names of utilities, command arguments, syntax)
and more recognizing (solution components associated with check boxes,
radio buttons, and pull-downs).
I spent much less time typing. Certainly my right hand spent much more time herding the mouse
around the desktop.
But after a few months I started to get a tired, desolate feeling, akin to the fatigue I feel after too much channel
surfing or videogaming: too much time spent reacting, not enough spent
in active analysis and expression. In short, image-culture burnout.
The one ray of light that illuminated my tenure in NT environments was
the burgeoning popularity of Perl. Perl seemed to find its way into NT
shops as a CGI solution for Web development, but people quickly
recognized its power and adopted it for uses far outside the scope of
Web development: system administration, revision control, remote file
distribution, network administration.
The irony is that Perl itself is a subset of UNIX features condensed into a quick-and-dirty scripting
language. In a literary light, if UNIX is the Great Novel, Perl is the
Mastery of UNIX, like mastery of language, offers real freedom. The
price of freedom is always dear, but there's no
Personally, I'd rather pay for my freedom than live in a
bitmapped, pop-up-happy dungeon like NT. I'm hoping that as IT folks
become more seasoned and less impressed by superficial convenience at
the expense of real freedom, they will yearn for the kind of freedom
and responsibility UNIX allows. When they do, UNIX will be there to
fill the need.
Thomas Scoville has been wrestling with UNIX since 1983. He currently
works at Expert Support Inc. in Mountain View, CA.