DOS ain't dead - Defragmentation FAT32 volumes

Defragmentation FAT32 volumes (Users)

posted by marcov, 08.07.2008, 12:48

> > Note that not every fragmentation is a drive movement. Cylinders are
> > probably also way bigger. So if the HD driver tries to place fragments
> > near, it will still be read/written in a single spin.
>
> The only time this would be the case is if the hd driver read the data
> after the requested sectors in the original call. Otherwise, the drive
> would read the requested cluster and continue spinning, getting the next
> requested cluster on the next spin.

Well, I thought that was NCQ was for to exploit such benefits that up ? Moreover, on the next spin is still way cheaper than a seek.

Admitted, it will probably hard to get something NCQ for Dos, and the same for a smart filesystem driver that would try to place data near.

Post reply

Complete thread:

Defragmentation FAT32 volumes - Laaca, 03.07.2008, 19:51
- Defragmentation FAT32 volumes - Japheth, 03.07.2008, 19:57
  - Defragmentation FAT32 volumes - Laaca, 04.07.2008, 10:07
    - Defragmentation FAT32 volumes - Japheth, 04.07.2008, 10:44
      - Defragmentation FAT32 volumes - Rugxulo, 06.07.2008, 17:04
        Defragmentation FAT32 volumes - Steve, 06.07.2008, 23:00
        Defragmentation FAT32 volumes - rr, 07.07.2008, 07:46
        Defragmentation FAT32 volumes - Steve, 07.07.2008, 08:47
        Defragmentation FAT32 volumes - sol, 07.07.2008, 22:07
        Defragmentation FAT32 volumes - marcov, 07.07.2008, 23:19
        Defragmentation FAT32 volumes - sol, 07.07.2008, 23:28
        Defragmentation FAT32 volumes - marcov, 08.07.2008, 12:48
        Defragmentation FAT32 volumes - RayeR, 06.07.2008, 23:37
    - Defragmentation FAT32 volumes - sol, 04.07.2008, 17:37
      - Defragmentation FAT32 volumes - rr, 04.07.2008, 17:41
- Defragmentation FAT32 volumes - ecm, 03.07.2008, 20:01
  - Defragmentation FAT32 volumes - sol, 03.07.2008, 20:07
- Defragmentation FAT32 volumes - tikbalang, 05.07.2008, 16:20