why is thumb drive so slow?

[ljb]

Why does it take XP Pro many times longer than Win 2000 to delete files from
my thumb drive? Win 2000 takes <5 seconds to delete 5000+ files while XP Pro
on a very similar machine takes >10 minutes. The files are the same and all
in one folder. Does it have something to do with the progress bar and flying
files? Win 2000 doesn't appear to show progress while XP does.

thanks
LJB

 

[bxf]

The discrepancy you indicate is too large to be simply a matter of
system efficiency, even if such differences existed. Is it only DELETEs
that are slow? How about READs and WRITEs?

Are you plugging the drive directly into a USB port in both machines,
or are you using something like as a PCMCIA USB2 adapter, for example?

Do you know for a fact that you have the latest appropriate USB2
drivers on the XP machine? And, if you are you using some adapter, you
will want to ensure that you have the latest drivers for that as well.

 

[ljb]

The discrepancy you indicate is too large to be simply a matter of
system efficiency, even if such differences existed. Is it only DELETEs
that are slow? How about READs and WRITEs?

Are you plugging the drive directly into a USB port in both machines,
or are you using something like as a PCMCIA USB2 adapter, for example?

Do you know for a fact that you have the latest appropriate USB2
drivers on the XP machine? And, if you are you using some adapter, you
will want to ensure that you have the latest drivers for that as well.

Both are Dell PC's less than 3 years old. Both support USB2.0. Both are
plugged directly into the case front USB port. Under Win 2k the progress bar
doesn't even show long enough to watch it. Under XP Pro its so slow I can't
bear to watch the progress. I have to leave. With individual files read,
write and delete aren't noticeably different. It all seems to involve
folders full of files only. I'll check for updated drivers and report back.

thanks

 

[Ghostrider]

ljb wrote:

Both are Dell PC's less than 3 years old. Both support USB2.0. Both are
plugged directly into the case front USB port. Under Win 2k the progress bar
doesn't even show long enough to watch it. Under XP Pro its so slow I can't
bear to watch the progress. I have to leave. With individual files read,
write and delete aren't noticeably different. It all seems to involve
folders full of files only. I'll check for updated drivers and report back.

thanks

If both machines were the same, then they both should have
the same operating system. Exactly what Dell models are these
and how were they shipped? Did they came from the same lot?
and if these machines are the same, then why does one have a
different operating system? One is more inclined to presume
that the original OS was Windows 2000, to which Dell, as OEM,
might have had optimized. If so, then changing over to Windows
XP would have resulted in a less-optimal machine. Or vice-versa.
There is really no good way to do comparisons of this sort, short
of custom-building similar machines and optimizing each one
individually for peak performance.

 

[Jim Macklin]

Does the XP machine have some file deletion protection
program that is caching the deleted files?



--
The people think the Constitution protects their rights;
But government sees it as an obstacle to be overcome.
some support
http://www.usdoj.gov/olc/secondamendment2.htm



"ljb" <.> wrote in message
|
|
| > The discrepancy you indicate is too large to be simply a
matter of
| > system efficiency, even if such differences existed. Is
it only DELETEs
| > that are slow? How about READs and WRITEs?
| >
| > Are you plugging the drive directly into a USB port in
both machines,
| > or are you using something like as a PCMCIA USB2
adapter, for example?
| >
| > Do you know for a fact that you have the latest
appropriate USB2
| > drivers on the XP machine? And, if you are you using
some adapter, you
| > will want to ensure that you have the latest drivers for
that as well.
| >
| > ---
| > It's easy to make a decision when there are no options.
| >
|
| Both are Dell PC's less than 3 years old. Both support
USB2.0. Both are
| plugged directly into the case front USB port. Under Win
2k the progress bar
| doesn't even show long enough to watch it. Under XP Pro
its so slow I can't
| bear to watch the progress. I have to leave. With
individual files read,
| write and delete aren't noticeably different. It all seems
to involve
| folders full of files only. I'll check for updated drivers
and report back.
|
| thanks
|
|

 

[ljb]

Does the XP machine have some file deletion protection
program that is caching the deleted files?



--
The people think the Constitution protects their rights;
But government sees it as an obstacle to be overcome.
some support
http://www.usdoj.gov/olc/secondamendment2.htm



"ljb" <.> wrote in message
|
|
| > The discrepancy you indicate is too large to be simply a
matter of
| > system efficiency, even if such differences existed. Is
it only DELETEs
| > that are slow? How about READs and WRITEs?
| >
| > Are you plugging the drive directly into a USB port in
both machines,
| > or are you using something like as a PCMCIA USB2
adapter, for example?
| >
| > Do you know for a fact that you have the latest
appropriate USB2
| > drivers on the XP machine? And, if you are you using
some adapter, you
| > will want to ensure that you have the latest drivers for
that as well.
| >
| > ---
| > It's easy to make a decision when there are no options.
| >
|
| Both are Dell PC's less than 3 years old. Both support
USB2.0. Both are
| plugged directly into the case front USB port. Under Win
2k the progress bar
| doesn't even show long enough to watch it. Under XP Pro
its so slow I can't
| bear to watch the progress. I have to leave. With
individual files read,
| write and delete aren't noticeably different. It all seems
to involve
| folders full of files only. I'll check for updated drivers
and report back.
|
| thanks
|
|

Both Dell PC's are about 3 years old. The faster one is a Dell Optiplex
GX260, 2.4GHz, 512mb DDR SDRAM PC2100, Win 2k (shipped with XP Pro but down
graded). The slower one is Dell Inspiron 2100, 1.8GHz, 512mb SDRAM, PC133,
Win XP Pro (shipped with XP Pro). Both have the same Intel 82801 USB
Controller and USB 2.0 with current drivers. Win 2k will delete the folder
and files from the thumb drive almost instantly. Win 2k writing the files
takes a few seconds. XP Pro takes several minutes, nearly if not exactly, as
long to delete the files as to write them. I can count faster than the
progress indicator deletes them! In my opinion there shouldn't be a huge
difference between 2.4 and 1.8 GHz. I'm not aware of any file deletion
protection software.

thanks
LJB

 

[R. McCarty]

I would download and use DiskSpeed32 to test the actual
throughput on the Flash drive.

Download here:
http://www.geocities.com/vgrinenko/DiskSpeed32/

For example, My MiniCruzer 256

(Optimized for Quick Removal -- No Write Cache)
Access Time ~7.5 Ms
Throughput ~6.2 Meg-per-Second

(Optimized for Performance -- Write Cache Enabled)
Access Time ~7.5 Ms
Throughput ~6.6 Meg-per-Second

 

[ljb]

I would download and use DiskSpeed32 to test the actual
throughput on the Flash drive.

Download here:
http://www.geocities.com/vgrinenko/DiskSpeed32/

For example, My MiniCruzer 256

(Optimized for Quick Removal -- No Write Cache)
Access Time ~7.5 Ms
Throughput ~6.2 Meg-per-Second

(Optimized for Performance -- Write Cache Enabled)
Access Time ~7.5 Ms
Throughput ~6.6 Meg-per-Second

Here are my test results and I don't see any significant differences. The
memory is Sandisk MiniCruzer 512. To me this doesn't explain the night and
day performance difference. Where are the "Optimized for Quick Removal" and
"Optimized for Performance" settings made?

Fast PC - Dell Optima GX260

Avr access time 9.3ms

Max speed 9075 kBytes/s

Avr speed 9005 kBytes/s

Min speed 8695 kBytes/s

Test time 1:05



Slow CP - Dell Inviron 2100

Avr access time 9.4ms

Max speed 8882 kBytes/s

Avr speed 8839 kBytes/s

Min speed 8517 kBytes/s

Test time 1:07



thanks

LJB