Linked by Thom Holwerda on Sat 17th Dec 2005 18:34 UTC
Windows Windows testers will get a new beta version of Windows Vista, dubbed the December Community Technology Preview beta build, just before next week's holidays, according to tester scuttlebutt. New to the December release, testers say, will be a number of features and user-interface tweaks. a new defrag module; tight integration of Windows Defender (formerly known as Windows AntiSpyware); and a functional parental-controls filter are all rumored to be in the December Vista build.
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RE[6]: New Defrag Module...
by CapEnt on Sun 18th Dec 2005 04:17 UTC in reply to "RE[5]: New Defrag Module..."
CapEnt
Member since:
2005-12-18

Now yes! I agree with you =) Metadata journaling and block journaling are already very good in their jobs even when not combined.

NTFS is a good file system, as Ext3/JFS/Reisefs.
The algorithm who Ext3 use are created to execute fragmentation resistence are based on the assumption who you have always a good percentage of space free, so they can white the data on such order they don't need to fragment between already used inodes. As you can note, the performance of that algorith decrease when the disk start to run out of space. It's works fair nice with fill rates on 80%~90% or with big amounts of small files operation although. (in other words: most of time)

Edited 2005-12-18 04:18

Reply Parent Score: 1

RE[7]: New Defrag Module...
by MonsieurEvil on Sun 18th Dec 2005 04:27 in reply to "RE[6]: New Defrag Module..."
MonsieurEvil Member since:
2005-12-15

Now yes! I agree with you =) Metadata journaling and block journaling are already very good in their jobs even when not combined.

I'll drink to that! :-)

The algorithm who Ext3 use are created to execute fragmentation resistence are based on the assumption who you have always a good percentage of space free, so they can white the data on such order they don't need to fragment between already used inodes. As you can note, the performance of that algorith decrease when the disk start to run out of space. It's works fair nice with fill rates on 80%~90% or with big amounts of small files operation although. (in other words: most of time)


NTFS definitely has the same problem. I'd guess that all FS's do, unless they can guarantee files never getting fragmented in the first place (through magical variable sized clusters :-) ). Fragmentation fighting is pretty much a holding action.

I wish the 5270 TAP build had more info posted about it publically, so we could talk about more than the previous 15 years of file systems...

Edited 2005-12-18 04:28

Reply Parent Score: 1