Yes, that's correct Charlie.
Kym, the NFS is a proper NFS.
If you could run a simple test, it would be handy.All you have to do
is run a loop that loops over a handful of directories and does a
fileExists() on each file in there, and compare the overall time
between local files and NFS files.
Obviously the directory you loop over needs to be the same on the NFS
as it is on the local drive.
You won't see the WinNTFileSystem.getBooleanAttributes(Native Method)
stuff unless you take thread dumps while the test is running, or you
use a monitor tool like 'process monitor'.
Here is a code example of the kind of loop I do, you could take that,
bung it in a cfc file and run it (you'd need to set up the bit that
calls getDirFiles() obviously.
The counter and limit are just used to restrict the number of
directories that get looped over. If Kai could run the same kind of
test, that would also be very handy :)
<cfset request.counter = 1>
<cfset request.limit = 20>
<cffunction name="getDirFiles" output="true">
<cfargument name="sDIR">
<cfset var result = "">
<cfdirectory action="list" directory="#arguments.sDIR#"
name="result">
<cfset request.counter = request.counter + 1>
<cfif request.counter GTE request.limit><cfreturn false></cfif>
<cfif isQuery(result) AND result.RecordCount>
<cfloop query="result">
<cfif result.type EQ "Dir" AND len(result.name)>
<!---<cfoutput>directory:
#result.directory#<br></cfoutput>--->
<cfif NOT getDirFiles(sDIR = result.directory & "\" &
result.name)>
<cfreturn false>
</cfif>
<cfelse>
<cfif fileExists(result.directory&"\"&result.name)>
<!---<cfoutput>file: #result.directory & "\" &
result.name#<br></
cfoutput>--->
</cfif>
</cfif>
</cfloop>
</cfif>
<cfreturn true>
</cffunction>
On May 28, 6:58 am, "charlie arehart" <charlie_li...@carehart.org>
wrote:
> Kym, just to be clear, Barry's observations weren't from his logs. They were
> from him
> taking stack traces, so if you don't do that, you wouldn't have seen the
> problem he
> did. Would you agree, Barry?
>
> /charlie
>
> > -----Original Message-----
> > From: cfaussie@googlegroups.com [mailto:cfaus...@googlegroups.com] On
> > Behalf Of
> > Kym Kovan
> > Sent: Thursday, May 27, 2010 1:52 AM
> > To: cfaussie@googlegroups.com
> > Subject: Re: [cfaussie] Re: Coldfusion 9 and Windows server 2008 64bit
>
> > On 27/05/2010 13:22, BarryC wrote:
> > > Hi,
>
> > > After some more testing, thread dumps and operating system process
> > > monitoring, we have found that there seems to be a performance issue
> > > with files when accessed via NFS.
> > > The slow part is when file attributes are being requested for a file
> > > on the NFS (this was also shown in the thread dumps with the
> > > getBooleanAttributes() function coming up a lot).
>
> > We have a client with a setup of a NAS (running FreeNas which is
> > FreeBSD) with lots of files behind a few servers and so I took a peek
> > into their CF logs and can see nothing like you are talking about below.
>
> > The files are mainly just being served up or saved by these servers so
> > it is not quite the same as code files. It makes me wonder if the
> > permissions aspect is the important one. You say NFS, do you mean that
> > literally, not NTFS via samba (SMB) or something?
>
> > I might ask them if they mind us running some tests at the weekend when
> > its quiet for them and see what we get.
>
> > Kym K
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