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List:       subversion-dev
Subject:    Re: Transactionless reporter performance results
From:       Brandon Ehle <azverkan () yahoo ! com>
Date:       2004-01-30 15:53:42
Message-ID: 401A7E06.6010804 () yahoo ! com
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Juanma Barranquero wrote:
> On Fri, 30 Jan 2004 08:28:32 +0100
> Branko Cibej <brane@xbc.nu> wrote:
> 
> 
>>Unmounting the volume should work if its done carefully, but I don't
>>know of a tool that does this
> 
> 
> AFAICS, the sync utility, from sysinternals.com, claims to do that:
> 
> 
>>UNIX provides a standard utility called Sync, which can be used to
>>direct the operating system to flush all file system data to disk in
>>order to insure that it is stable and won't be lost in case of a system
>>failure. Otherwise, any modified data present in the cache would be
>>lost. Here is a an equivalent that I wrote, called Sync, that works on
>>both Windows NT/2K and Windows 95/98. Use it whenever you want to know
>>that modified file data is safely stored on your hard drives.
>>Unfortunately, Sync requires administrative privileges to run. This
>>version also lets you flush removable drives such as ZIP drives. 

This is only half of what we want.  The sync command only clears the 
write cache, but we are more specifically interested in clearing the 
read cache.

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