| 1 |
-----BEGIN PGP SIGNED MESSAGE----- |
| 2 |
Hash: SHA256 |
| 3 |
|
| 4 |
Richard Fish wrote: |
| 5 |
> On 11/27/06, Chris Walters <cjw2004d@×××××××.net> wrote: |
| 6 |
>> showed a write speed as quoted above, and a read speed of about 280 MB |
| 7 |
>> per second... |
| 8 |
> |
| 9 |
> This seems more like the SATA-II interface speed of ~300MB/s... |
| 10 |
> |
| 11 |
>> Though the same one reported a read speed of about 900+ |
| 12 |
>> MB per second for my USB drive (not really possible, since the maximum |
| 13 |
>> speed for USB 2.0 is about 480 MB / second). |
| 14 |
> |
| 15 |
> Yeah, bogus. And remember that 480 is megabits/sec (Mb/s)...actually |
| 16 |
> more like 60MiB/s maximum throughput (although I have yet to get more |
| 17 |
> than 29MiB/s from any USB drive). |
| 18 |
> |
| 19 |
>> This is very frustrating. At first the drive was quite fast, under |
| 20 |
>> windows and now it is extremely slow... I asked about this in a windows |
| 21 |
>> xp pro group, and so far no one is touching it. |
| 22 |
> |
| 23 |
> Well I would first poke around in the device manager for the SATA |
| 24 |
> interface and make sure it is not in PIO mode. Then check the |
| 25 |
> property pages of the disk and make sure that write caching is |
| 26 |
> enabled. |
| 27 |
|
| 28 |
Hello Richard, |
| 29 |
|
| 30 |
I am beginning to suspect that the quality on those "FreshDevices" is |
| 31 |
quite low, and will probably remove them. |
| 32 |
|
| 33 |
I checked the drive and my IDE/ATAPI drivers - there are exactly two |
| 34 |
primary channels and two secondary channels. On each of the primary |
| 35 |
channels is a device in slot 0. The first one is operating in DMA 4 |
| 36 |
mode (I suspect that this is my DVD-RW drive), while the second one is |
| 37 |
operating in PIO mode. I couldn't find a way to change that from the |
| 38 |
device manager, since it is set to use "DMA if available". So that is |
| 39 |
very likely the problem with the windows slow down. Any ideas on how I |
| 40 |
can fix this without using the "rescue disc" that came with the computer? |
| 41 |
|
| 42 |
Regards, |
| 43 |
Chris |
| 44 |
|
| 45 |
-----BEGIN PGP SIGNATURE----- |
| 46 |
|
| 47 |
iD8DBQFFa7YhUx1jS/ORyCsRCOxoAJ0Uq2qO6GoR3EobMfBP/mVMdq+DVgCghJ0k |
| 48 |
xbxOJ3fbKqcj3i4V1jd8HXQ= |
| 49 |
=VPA3 |
| 50 |
-----END PGP SIGNATURE----- |
| 51 |
-- |
| 52 |
gentoo-user@g.o mailing list |
Archives