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Insanely slow write speed on SD cards/USB pendrives in Win XP.

M

Marty502

Senior member
Hey guys,

I've got a first-gen Acer Aspire One netbook loaded with Win XP. 8 GB SSD drive on it.
I used to have Win 7 but the drive's just too small. Shame because it worked very smoothly, better than XP in fact.

Anyway, I have a 16 GB SDHC Class 10 card and a 2 GB SD card as extra storage,
but in XP their write speed for small files is atrocious.
That didn't happen in Windows 7, I'm sure of it.
All drivers are up to date.
Big files like videos get written as fast a they should.

Check this ATTO benchmark result for the Class 10 card:



See how slow the first 4 tests are?
It took me close to an hour to install Office 2003, which is around 500 MB.
The old SD card behaves the same for small files.
And my 2GB Sandisk U3 Cruzer has the same issue.

I honestly have no idea what's going on here.
Is there a hotfix for this? I haven't found any.
Any input will be appreciated.
 
It's not a matter of improvement, man.
It's faulty, that's what it is.
I think the write speed rate is actually slower than a 3.5" floppy disk for small files.

That's not just XP being old. It's something going wrong inside.

Guess I'll vLite the crap out of Win7 and put it back.
 
Marty502 said:
Guess I'll vLite the crap out of Win7 and put it back.
Click to expand...
I used to own an Asus Eee 1000 with 8GB+32GB flash storage.

You're right, W7 does run far better than XP. I did managed to run it though with 500MB-1GB of free space on C without using vlite.

I maxed the ram out on the machine at 2GB, installed a normal copy and it installed fine. Then i just disabled hibernation, system restore, page file, uninstalled tablet PC components and some other stuff from windows components, and also made sure I didnt have the 100MB system partition at installation stage. Think that was about it to be honest.

I think its all the .NET updates and MS Office updates which chomp on all the space.
 
Almost all cheap flash like SD are bad at small writes.

This is why serious digicam and HD video buffs spend extra coin on Sandisk flash. Sandisk Class 4 will consistently outperform most "cheapo" Class 10 flash in small writes.

There are probably other brands that perform well, but Sandisk is the 'go to' recommend in the digital camera world when people need consistent performance.

There may also be a WinXP / Win 7 difference, but cheap flash is just plain bad at small writes.

Search around the web for benches of Sandisk flash vs. others
 
i don't see any problems with your benchmark.

SD Cards != SSD

they are meant for mobile phones/small appliances/cameras with a small footprint

(eg for cameras, you do a continuous write for 1-5MB... it matches the Class 10 speed that you're supposed to get = 10MB/s)
 
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