Gentoo Archives: gentoo-user

From: Frank Steinmetzger <Warp_7@×××.de>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far
Date: Tue, 09 Feb 2010 22:03:25
Message-Id: 201002092213.42109.Warp_7@gmx.de
In Reply to: Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far by Frank Steinmetzger
1 Am Dienstag, 9. Februar 2010 schrieb Frank Steinmetzger:
2
3 > I have reset sdb7 to use boundaries divisible by 64.
4 > Old range begin%64 size%64 New range begin%64
5 > size%64 813113973-976703804 0.8281 0.125 813113984-976703935 0
6 > 0
7 >
8 > And guess what - the speed of truecrypt at creating a new container
9 > doubled. With the old scheme, it started at 13.5 MB/s, now it started at
10 > 26-odd. I’m blaming that cap on the USB connection to the drive, though
11 > it’s gradually getting more: after 2/3 of the partition, it’s at 27.7.
12
13 I fear I'll have to correct that a little. This 13.5 figure seems to be
14 incorrect, in another try it was also shown at the beginning, but then
15 quickly got up to >20. Also, a buddy just told me that this 4k stuff applies
16 only to most recent drives, as old as 5 months or so.
17
18 When I use parted on the drives, it says (both the old external and my 2
19 months old internal):
20 Sector size (logical/physical): 512B/512B
21 So no speedup for me then. :-/
22 --
23 Gruß | Greetings | Qapla'
24 Keyboard not connected, press F1 to continue.

Attachments

File name MIME type
signature.asc application/pgp-signature

Replies