USB KEY too slow?

[1abnerd]

Thanks 1 and all for this tool.

wimb http://www.boot-land.net/forums/?showtopic=4900 USB_MultiBoot.cmd - Install XP from USB

3. Making Bootable USB-Drive with USB_MultiBoot.cmd

- Remove all other Removable Drives, like USB Backup Harddisks and Memory Cards

- Use USB-stick with High Read/Write Speed of about 15 MB/sec

I have a SanDisk 2GB micro cruzer formatted NTFS

SiSoftware Sandra Lite info:

Benchmark Results SanDisk 2GB micro cruzer

Device Index : 4922ops/minute

Endurance Factor : 20.30

512bytes Files Test

Read Performance : 115276ops/minute, 960.63kB/s, 6.40X

Write Performance : 5308ops/minute, 44.23kB/s, 0.29X

32kB Files Test

Read Performance : 26027ops/minute, 13.56MB/s, 92.54X

Write Performance : 2045ops/minute, 1.07MB/s, 7.27X

256kB Files Test

Read Performance : 5906ops/minute, 24.61MB/s, 167.99X

Write Performance : 942ops/minute, 3.93MB/s, 26.79X

2MB Files Test

Read Performance : 800ops/minute, 26.67MB/s, 182.04X

Write Performance : 62ops/minute, 2.07MB/s, 14.11X

64MB Files Test

Read Performance : 25ops/minute, 26.67MB/s, 182.04X

Write Performance : 5ops/minute, 5.33MB/s, 36.41X

256MB Files Test

Read Performance : 6ops/minute, 25.60MB/s, 174.76X

Write Performance : 1ops/minute, 4.27MB/s, 29.13X

This key is too slow to work correct?

[wimb]

The 15 MB/sec is the Nominal value.

Measured Benchmarks of my NTFS Format USB-sticks are for Write=5-7 MB/s and Read=9-12 MB/s

which are acceptable for preparing USB-stick and for Install of XP from USB.

Writing XP Source to USB-stick occurs in about 10 minutes and Install of XP from USB takes about 16 minutes.

In your case the Read performance is very good (2x faster as mine),

but Writing to the stick varies and is rather slow as compared to my values (2-5x slower as mine for 32 kB).

This means you must just use your stick and be patient to write the XP Source to the stick.

Your patience will be rewarded once you are going to Install XP from USB-stick

The most important thing is to use NTFS Format for sticks greater than 2 GB

and NOT FAT32 which is extremely SLOW for Install of XP from USB (it will take hours)

because FAT32 FileSystem is very inefficient in finding files in the about 7000 files of the I386 folder on USB-stick.

You should also try FAT format for your 2GB stick and make a Benchmark.

It might be that this is more efficient for you to Write the XP Source to the stick.

Edited September 21, 2008 by wimb