| 1 |
On Tue, Feb 9, 2010 at 1:13 PM, Frank Steinmetzger <Warp_7@×××.de> wrote: |
| 2 |
> Am Dienstag, 9. Februar 2010 schrieb Frank Steinmetzger: |
| 3 |
> |
| 4 |
>> I have reset sdb7 to use boundaries divisible by 64. |
| 5 |
>> Old range begin%64 size%64 New range begin%64 |
| 6 |
>> size%64 813113973-976703804 0.8281 0.125 813113984-976703935 0 |
| 7 |
>> 0 |
| 8 |
>> |
| 9 |
>> And guess what - the speed of truecrypt at creating a new container |
| 10 |
>> doubled. With the old scheme, it started at 13.5 MB/s, now it started at |
| 11 |
>> 26-odd. I’m blaming that cap on the USB connection to the drive, though |
| 12 |
>> it’s gradually getting more: after 2/3 of the partition, it’s at 27.7. |
| 13 |
> |
| 14 |
> I fear I'll have to correct that a little. This 13.5 figure seems to be |
| 15 |
> incorrect, in another try it was also shown at the beginning, but then |
| 16 |
> quickly got up to >20. Also, a buddy just told me that this 4k stuff applies |
| 17 |
> only to most recent drives, as old as 5 months or so. |
| 18 |
> |
| 19 |
> When I use parted on the drives, it says (both the old external and my 2 |
| 20 |
> months old internal): |
| 21 |
> Sector size (logical/physical): 512B/512B |
| 22 |
> So no speedup for me then. :-/ |
| 23 |
|
| 24 |
Frank, |
| 25 |
As best I can tell so far none of the Linux tools will tell you |
| 26 |
that the sectors are 4K. I had to go to the WD web site and find the |
| 27 |
actual drive specs to discover that was true. |
| 28 |
|
| 29 |
As far as I know so far there isn't a big improvement to be had |
| 30 |
when the sector size is 512B. |
| 31 |
|
| 32 |
- Mark |
Archives