MyDefrag Vs.Perfect Disk

[St.Trinity]

Hello,
i use Perfect Disk but i want to now. If i change for MyDefrag ,are is the same work like Perfect Disk.
I try manny Freeware but nothing can't compare to Perfect Disk!
Are can i trust to MyDefrag(becouse is verry lite program). 

[jeroen]

It's not exactly fair to compare a freeware program with a big commercial program. MyDefrag is powerful, but a commercial program will have more features. For more information see: Why use MyDefrag instead of a commercial or shareware defragger?
And for the trust see: How safe is MyDefrag?

[eCo]

St.Trinity,

I am a former user of PerfectDisk (7.0 -> 10.0) and I definitely switched to MyDefrag. The sorting (SortBy* functions) done by MyDefrag can take a lot of time but it was the only defragger, amongst the many I tested, that was able to bring back my old development PC to its top performance. Sorting really brings performance back to its max if you've got an "old" PC and/or a lot of programs and files. Add to that the flexibility brought by the scripting engine and you've got a winner !

Congrats again to Jeroen for this jewel !

[Gurky42]

The only risk you have St.Trinity is if jeroen (programmer) is just using people to test and debug the software only to turn around and try to sell it. This is nothing new these days.

Otherwise, it has a few unique ideas regarding defrag/optimization and a strong scripting language that allows the user to do damn near anything they want. It may not have a pretty GUI, but it doesn't need one. It just needs to do the job. Commercial software tends to waste too much time trying to make things look pretty and easy.

Your call...

[Double Hero]

Hello,
i use Perfect Disk but i want to now. If i change for MyDefrag ,are is the same work like Perfect Disk.
I try manny Freeware but nothing can't compare to Perfect Disk!
Are can i trust to MyDefrag(becouse is verry lite program). 

I've used both programms, and I definitely choose MyDefrag. PerfectDisk
-is very massive (I mean I could hardly browse the internet or use any other programms while it was working);
-it takes you for some strange reason a couple of days to process the whole disk (at least that was in my case);
-it has only 3 scripts

And as for  MyDefrag:
- a very small-size programm
- An excellent "hard-disk map" without any confusing clusters
- it does not turn your computer into a slow tractor
- you can write the scripts that YOU need (it took me just under one hour to figure out how to write a game optimization script)
- excellent forum support + you can talk to JK himself 

+ it's free 

[quanthero]

I used/use both PerfectDisk and MyDefrag. Here is my list of Pros and Cons for both products.

PerfectDisk
Pros
- Excellent boot-time defrag, which not only defragments metadata/paging files but also places these files to optimal positions as per Microsoft's recommendations
- Defragments very full disks (less than 5% free space)
- Very stable behavior (i.e. no crashes, stable ram/cpu usage, etc.)
Cons
- PerfectDisk's SmartPlacement puts directories after all the data which may (in theory) slow down average file access time

MyDefrag
Pros
- Very small and lightweight
- Scripting system which helps to maximize performance
- Good at defragmenting/optimizing full disks
Cons
- Occasional high cpu usage
- High memory usage on disks containing many NTFS compressed files

[Darlis]

- Excellent boot-time defrag, which not only defragments metadata/paging files but also places these files to optimal positions as per Microsoft's recommendations

MyDefrag can do that too (except moving the pagefile under Windows). But what are these Microsoft's recommendations?

[quanthero]

- Excellent boot-time defrag, which not only defragments metadata/paging files but also places these files to optimal positions as per Microsoft's recommendations

MyDefrag can do that too (except moving the pagefile under Windows). But what are these Microsoft's recommendations?

Well, MyDefrag can't really defragment all metadata files. PerfectDisk, on the other, has an option to defragment all metadata files during computer boot.

Regarding Microsoft's recommendations, Microsoft made some research into $MFT placement in which it determined that placing $MFT 1/3 into the disk NOT to exceed 3GB (i.e. placing $MFT 3GB into the disk on most disks) improves NTFS filesystem performance by 5 - 10% compared to placing $MFT at the beginning of a drive.

[Darlis]

Ah. I thought there would be more to it, like placing the boot files.
I made a script which puts the boot and frequently used files to the beginning and the folders and mft after that (at about 2,7GB). So, you can do this with MyDefrag too.

[peters40]

From Darlis

I made a script which puts the boot and frequently used files to the beginning and the folders and mft after that (at about 2,7GB).

This is interesting would you be willing to share your script

Quote from quanthero

Microsoft made some research into $MFT placement in which it determined that placing $MFT 1/3 into the disk NOT to exceed 3GB (i.e. placing $MFT 3GB into the disk on most disks) improves NTFS filesystem performance by 5 - 10% compared to placing $MFT at the beginning of a drive.

This is also interesting can you link me to this research please

Peter

[Darlis]

I made a script which puts the boot and frequently used files to the beginning and the folders and mft after that (at about 2,7GB).

This is interesting would you be willing to share your script

Of Course. But you have to make list with you frequently used files. These are not determined by MyDefrag. I use ProcessMontor to log file activity and export the resulting list for use in MyDefrag.

The sorting script also placed files, which have not changed recently, at the front of the disk. This will create a solid block of files which (almost) never changes.

[peters40]

Thanks Darlis
Now im looking into using ProcessMontor ..... not easy

peter

[poutnik]

Microsoft made some research into $MFT placement in which it determined that placing $MFT 1/3 into the disk NOT to exceed 3GB (i.e. placing $MFT 3GB into the disk on most disks) improves NTFS filesystem performance by 5 - 10% compared to placing $MFT at the beginning of a drive.

This is also interesting can you link me to this research please

Common sense is enough here.
Imagine given limit access time MFT2file, somewhere  in 1st 1/3 of possible values for given disk volume.

If MFT is at very beginning, there is lets say n GB big zone next to MFT, with MFT2file access time shorter than value given above. If we would put MFT those n GB aside from beginning,  the zone of fastests acceses gets double sided and double sized, 2 x n GB. 

At hypothetical model example, if all files were equally accessed, the best place for MFT would be near middle of data.  Then average MFT2file route would be 1/4 of all data long only.  If MFT would be at beginning here, average MFT2file route would be 1/2 of data size long, twice as long as the former. 

For real disk, averaging needs weighting by access frequency, pushing best MFT place toward fast end of disk with frequently accessed files.   Good approach can be to have MFT/folders between 2 zones, comparable in their sizes and access frequency.

As far as data accessed in MFT are very small in size, faster average MFT2File access time is much more important than little slower MFT transfer speed, if MFT is not on the fastest tracks. MFT is partly cached, decreasing MFT access frequncy, but not affecting MFT2file access time and MFT transfer time.

[St.Trinity]

Thank you for all answhers,i use Perfect Disk becous he have Offline Defragment and to Offline defragment he defrag my System fail,swap .....
So,to another Site sommebody tell me That Vista don't need Boot Defrag becouse by Default Vista make defragmentation!
Hkey_Local_Mashine/Software/Microsoft/Dfrg/BootOptimizeFunction/Enable/Y(Yes)
So,if Vista do defaul BootOptimize so MyDefrag is Perfect!!!
I ask Jeroen.
Why You make a script at 5.00AM (morning)to make daily defragmentation?My PC i Sweech Off at 5.00AM?
Can i change for 5.00PM?
How can i put every next Version?
Are i got to deinstall all old version to put the new one or...i put the new one to the old one and yhe new one make the correction?
Thank you.

[poutnik]

So,to another Sait sommebody tell me That Vista don't need Boot Defrag becouse by Default Vista make defragmentation!
Hkey_Local_Mashine/Software/Microsoft/Dfrg/BootOptimizeFunction/Enable/Y(Yes)
So,if Vista do defaul BootOptimize so MyDefrag is Perfect!!!   

Do not confuse Boot Defrag = Booting files optimization ( done by Vista, by MyDefrag and I guess by XP too )
with Boot(Offline) optimization, done by e.g. PerfectDisk.

The former - Vista Boot optimization is recommended to be switched off,
in case there is OS versus MyDefrag fight, how it is to be done.

The latter is done by using a special PerfectDisk driver,
active before the Windows kernel is loaded.