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From Daniel John Debrunner <...@apache.org>
Subject Re: [jira] Created: (DERBY-888) improve performance of page allocation
Date Mon, 30 Jan 2006 21:24:13 GMT
Suresh wrote:

>> Without sync on allocation, How to make sure recovery never sees good
>> old page on a new allocation  because some OS/Hardware does zero out a
>> new page to a file that was used earlier by the same file or some
>> other file ?. I think in most generic Operating Systems one will never
>> give the user a old page on new page allocation to the file. But I am
>> not sure how it works on small devices with FLASH memory ..etc.

Giving back old data would be a security hole in a multi-user operating
system, so it *should* not happen there. Though, as you say, it could be
a possibility in a simple os.

Dan.


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