First off: Optimization, the science of it? Is based on something that is good for ALL conditions!
Not just the ones you encounter today, but also years from now... keep this in mind:
@alexstaar I don't understand why you are disagreeing with my tips, and then in your post agreeing! It's a bit confusing.
I agree that it makes sense, INITIALLY! How about over time though?
My man, NEWSFLASH: It won't... eventually it will not be as good @ its performance & if you want it to be again? You'll HAVE to move it.
AGAIN: Once you place your "mid-data" location (your 25-33% of the way into your disk as you stated) for a separate pagefile.sys partition? Well, what will happen when the disk gains more data than that is all... you won't be "mid-data" anymore.
And, if you DON'T have a non-destructive repartitioning tool like Partition Magic (tools like it do NOT come native w/ the OS, & face it: MOST FOLKS DON'T OWN IT)? Well... how will you move it later to BE "mid-data"??
Remember: It's a partition... unmoveable typically. ONCE YOU PLACE IT? It's generally 'stuck', unless you use & can afford (or in the case of many folks, even KNOW about it) such a tool like PQMagic?
If you place it middisk right off on a single disk system? You ARE optimal for ALL conditions present to future & you DON'T NEED 3rd party tools anymore, because this is optimal from day #1 near empty disks, to the day the drive is near full.
FIRST, most HDDs are NOT FULL, by a long shot.
That's not true for "ALL" folks! Especially today, what with filesharing gone rampant & folks downloading entire FILMS by the score!
E.G. -> I have a 74gb WD Raptor sitting here VERY near to full, with data from downloads, which WERE on my main disk @ one point, packing it full as well, or on the way to it, VERY FAST!
Hence, why I went 2 days ago & bought a SamSung SpinPoint 250gb ($65 only approximately, great deal, CompUSA store closing)!
I was running out of room for data storage, first on my main disk, & later on the WD even (both had programs & OS on them).
Like SO much in this field? It depends on the user & how they use their system, or a particular component in a system!
Eventually, you WILL fill your disks somehow, data grows (this is a "rule" of sorts in MIS/IS/IT in fact, ask any network engineer running a network), it's that or use offline storage (I choose not to anymore, TOO slow).
So by your "binary binary" method, you should be somewhere in the middle of your defragged and condensed drive (all data moved up), ie. in the middle of a say, half to two-thirds fill drive.
Look up "Binary Search" & understand why mid-dataset placements work!
It shows in fact, you how NTFS itself even works on searches - Always cutting to midpoint of the data & searching. It's proven & definitely works.
AND, You're STILL assuming disks aren't full... or nearing it. This is inevitable... data grows & ESPECIALLY TODAY in the era of "filesharing" programs, even @ the HOME LEVEL!
SECOND, if your HDD is nearly full, what is in the latter portion tends to be data files not system files or programs. These will be "higher up" the HDD.
Not necessarily: If they are not used as much as certain data files, say movies you watch from your disks?? Which moves to the front, due to "prefetch optimizations"???
Here's a snippet from taken from the Microsoft website:
http://askbobrankin.com/windows_prefetch.html
"Windows XP monitors the files that are used when the computer starts and when you start applications. By monitoring these files, Windows XP can prefetch them. Prefetching data is the process whereby data that is expected to be requested is read ahead into the cache. Prefetching boot files and applications decreases the time needed to start Windows XP and start applications."
Diskeeper's I-FAAST & Raxco's SmartPlacement features? Variations of this theme, @ best.
PS. If you disagree with point one then you are completely mismanaging our HDD.
I do disagree - what happens if you place your pagefile.sys TODAY, in a partition mid-data (most folks can't do this anyhow, the OS does NOT come w/ the tools, & many are NOT aware of this anyways), today.
What happens a year from today when you added programs, data, etc.? Is YOUR placement on a PARTITION still 'optimal' for all conditions, even near full disks?
For 90% of the HDDs life, it is nowhere near full.
Ok: Tell that to my WD 74gb disk here that is only like 7gb away from being totally loaded!
PPS. I challenge you to get yourself a defragger that allows you to position certain files and folders. Follow my tips. You will *feel* the difference. The recommendations are based on more than ten years of field experience.
OH, I have 2 of them in fact (Raxco PerfectDisk, now, & Executive Software Diskeeper)...
AND, just so you know? Windows Defragger functions on the SAME MoveFile API & also obeys Windows "prefetch optimization" rules as well!
I.E.-> Helping to move MOST USED FILES to the front of the diskdrive, where the fastest outermost largest circumference tracks are. IIRC, the technology actually originated w/ INTEL on this topic in fact.
Well, I've been @ this field for nearly 25 years solid (14 as a pro in various capacities from network engineer/tech to programmer & most all else in between) & not ONLY @ a tech field engineer level, though it's where I started!
I just use the logic involved in mathematical principals like Binary Search Methods on this topic here.
Mid placement of something in ANY dataset assures you that you will never travel more ONE direction, than the other direction involved... over the LONG HAUL of a lifetime of a disk ESPECIALLY today? Means placing the pagefile.sys into a parition that is MIDDISK... because that disk, especially today in the era of filesharing, will begin to fill up!
Thus, it is CONSISTENTLY OPTIMAL, in any conditions to place the pagefile.sys into a partition, mid disk, on a SINGLE DISK SYSTEM...
Especially over nearing full disks & especially over the long haul.
APK
P.S.=> Still, I don't know WHY the heck folks just don't buy a 2nd disk & put their pagefile.sys onto it... if they WANT performance? This is the way to go... your programs & OS exist peacefully on 1 disk & are NOT interfered w/ in paging operations.
Disks, today? Relatively cheap, especially when viewed on a price-per-mb level... apk