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Subject: Re: FILE system speeds

Author: Jeremiah Penery

Date: 21:06:22 01/09/01

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On January 09, 2001 at 20:56:17, Eugene Nalimov wrote:

>On January 09, 2001 at 19:12:23, Dann Corbit wrote:
>
>>On January 09, 2001 at 19:08:43, Eugene Nalimov wrote:
>>
>>>On January 09, 2001 at 18:49:06, Vincent Diepeveen wrote:
>>>
>>>>Hello,
>>>>
>>>>For partitions under NT2000 i can chose out of 2
>>>>different formats: either NTFS or FAT32,
>>>>
>>>>I don't know exactly how the file systems internally work,
>>>>but i wonder about next
>>>>  a) what is the difference between the 2
>>>>  b) what is the fastest file system to read and write huge
>>>>     files (several gigabytes: about 2.5 gigabyte) with?
>>>>
>>>>Thanks,
>>>>Vincent
>>>
>>>FAT32 is faster than NTFS, but NTFS is much more robust. I'd recommend NTFS
>>>despite it relative slowness.
>>
>>If you boost the cluster size for NTFS aren't they about the same?
>
>No. I believe (and that's from my memory, so of course I can be wrong) that when
>you are writing something to NTFS disk OS is doing something to protect the
>metadata, i.e. either writing it to disk immediately, or writing the transaction
>into the transaction log on the disk, or doing something similar. That means
>that it's much harder to totally lose the information in the case of power or
>some other failure, but also means that all the writes are much slower than for
>the FAT[32] case.
>
>All journal/logging file systems have that speed disadvantage, not only NTFS.

It is possible to turn all the I/O logging off under Win2k though, isn't it?

I believe I read this somewhere, and there was a registry patch that supposedly
did this, but I still don't know quite enough about the internal workings of the
OS to know whether it did anything.



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