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PerfectDisk Professional 13.0 Build 770


anuraag

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Hi ALL ...Just a word of advice ......I ya have a SSD I recommend you Do not Use this or any other Defrag utilities ...it will only reduce the life of your SSD...It reduced my Kingston 60GB From 1.15 TB to 560 GB more then Half life in just a week......You really dont need this if you have a SSD....Just make sure your trim is turned on and your good to go......Good luck :showoff:

well technicly you can use defrag just have to use one dsighned for ssd

I know .....But thats just to sell the program.....it is not needed for SSD because Its solid state hence the name {Solid state Drive} There is no moving parts so it will not get Fragmented ....There is no fast part of Disk...its all the same speed through out the disk ..its a lot like flash drives.you will only reduce the life of your SSD..But its your decision..I highly recommend you read up on it .....Windows 7 and 8 have TRIM Function and thats all you need...

your right partly but having spoke to the makers of several ssd drives the trim command only works on full blocks but it doesnt work on partily full blocks

so over time you end up with loads of blocks that trim wont even touch you need to consoldate free space in this case

on thing ive done is to actauly test it out http://www.buildcomputers.net/hard-drive-benchmark.html in my case a 20 percent boost in write speed on typical ssd after a year of usage without anything but trim

Understood ...Iv bench marked before and after consolidation with a trim command but found only 1% overall increase in performance... and to consolidate means that it needs to write so in fact your degrading the disk with unnecessary writes The trim will get the job done eventually given time..Besides you will not notice a difference in performance...But i guise its up to the individual ....Peace

well how long had you had your ssd drive before you did consoldate and trim consoldate only helps when you use drive a lot

:showoff: :boxing: :rockon:

Other Programs Consolidate Free Space

We previously mentioned that cells on an SSD must be erased before they’re written to. This can be a problem — a single cell contains multiple writable pages. If the drive needs to add additional data to a partially empty cell, the cell must be read, erased, and the modified data written back to the cell. If files are scattered all over your drive and every cell is partially empty, writing some data will result in a huge amount of read-erase-write operations, slowing down write operations. This shows up as an SSD’s performance decreasing as it fills up.

Solid-state drives have controllers that run firmware, which is a kind of low-level software. This firmware handles all the SSD’s low-level tasks, including consolidating free space when the drive reaches a certain level of capacity, ensuring that there are plenty of empty cells instead of many partially empty cells. (Of course, there must be free space to consolidate — you should always leave a good chunk of space empty on your SSD.)

Some optimization programs claim they’ll consolidate free space by moving data around on your solid-state drive with an intelligent algorithm. In a world where this was possible, the results of this would vary from drive to drive. Some firmwares may wait too long before using their own free space consolidation process. Benchmarks run of solid-state free space consolidation utilities against different firmwares would likely show inconsistent results, as the difference will depend on how good a job each drive’s firmware was doing. In general, a drive’s firmware would probably do a decent enough job that you wouldn’t need to run an optimization program that does this for you. Such programs will also result in additional writes — if a drive waits too long, it may do so to minimize the amount of writes to the drive. it’s a trade-off between free space consolidation and write avoidance.

However, there’s another catch here: The drive controller itself handles the mapping of physical cells on the SSD to logical sectors presented to the operating system. Only the SSD controller really knows where the cells are located. It’s possible that the drive might present logical sectors to the operating system that may be next to each other for the operating system’s purposes, but far away from each other on the actual physical SSD. For this reason, using any sort of software program to consolidate free space is likely a bad idea — the program doesn’t really know what’s going on behind the SSD controller.

This will all vary from drive to drive and firmware to firmware. Some firmwares may present sectors to the operating system in a way that maps to how they appear on the other drive, while aggressive optimizations on other drives may result in very large distances between sectors on the main drive. There may be some drives with controllers that present the sectors how they appear on the drive and with bad free space consolidation algorithms — such third-party tools may work well on such drives, but don’t count on it.

The Verdict: Your SSD is already consolidating free space for you. It’s likely doing a much better job than a software program that can’t see what’s really going on on your drive would do. Such programs will likely just waste your computer’s resources and wear down the SSD.

Other Programs Consolidate Free Space

We previously mentioned that cells on an SSD must be erased before they’re written to. This can be a problem — a single cell contains multiple writable pages. If the drive needs to add additional data to a partially empty cell, the cell must be read, erased, and the modified data written back to the cell. If files are scattered all over your drive and every cell is partially empty, writing some data will result in a huge amount of read-erase-write operations, slowing down write operations. This shows up as an SSD’s performance decreasing as it fills up.

Solid-state drives have controllers that run firmware, which is a kind of low-level software. This firmware handles all the SSD’s low-level tasks, including consolidating free space when the drive reaches a certain level of capacity, ensuring that there are plenty of empty cells instead of many partially empty cells. (Of course, there must be free space to consolidate — you should always leave a good chunk of space empty on your SSD.)

Some optimization programs claim they’ll consolidate free space by moving data around on your solid-state drive with an intelligent algorithm. In a world where this was possible, the results of this would vary from drive to drive. Some firmwares may wait too long before using their own free space consolidation process. Benchmarks run of solid-state free space consolidation utilities against different firmwares would likely show inconsistent results, as the difference will depend on how good a job each drive’s firmware was doing. In general, a drive’s firmware would probably do a decent enough job that you wouldn’t need to run an optimization program that does this for you. Such programs will also result in additional writes — if a drive waits too long, it may do so to minimize the amount of writes to the drive. it’s a trade-off between free space consolidation and write avoidance.

However, there’s another catch here: The drive controller itself handles the mapping of physical cells on the SSD to logical sectors presented to the operating system. Only the SSD controller really knows where the cells are located. It’s possible that the drive might present logical sectors to the operating system that may be next to each other for the operating system’s purposes, but far away from each other on the actual physical SSD. For this reason, using any sort of software program to consolidate free space is likely a bad idea — the program doesn’t really know what’s going on behind the SSD controller.

This will all vary from drive to drive and firmware to firmware. Some firmwares may present sectors to the operating system in a way that maps to how they appear on the other drive, while aggressive optimizations on other drives may result in very large distances between sectors on the main drive. There may be some drives with controllers that present the sectors how they appear on the drive and with bad free space consolidation algorithms — such third-party tools may work well on such drives, but don’t count on it.

The Verdict: Your SSD is already consolidating free space for you. It’s likely doing a much better job than a software program that can’t see what’s really going on on your drive would do. Such programs will likely just waste your computer’s resources and wear down the SSD.

Edited by peter.pan
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