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Posted to users@tapestry.apache.org by Inge Solvoll <in...@gmail.com> on 2007/01/16 10:53:50 UTC
OT: Better Java performance on Linux
Sorry about this OT question, but I figured you guys were the right ones to
ask about this.
A friend of mine (big linux fan) told me that tests at his workplace
indicated a huge (up to 500%) java performance gap between linux and windows
on machines running on the same hardware, in favour of linux. Sorry also
about the lack of detail here, I don't know the OS and Java version. I'll
get more details from my friend if my description of the issue doesn't ring
a bell with anyone. You can assume that all software is max 1-2 years old.
Has anyone here experienced anything similar, with either OS performing
vastly better on any java task? Is the gap widening or closing with newer
versions of Java and OS?
Thanks
Inge
Re: OT: Better Java performance on Linux
Posted by Marilen Corciovei <le...@nemesisit.rdsnet.ro>.
We are doing all development and deployment on Linux (Unix) servers but
one big difference I have noticed is when installing on Sun machines. We
have an application deployed on a Sun-Fire v210 and the java part
behaves much faster on sun than on a similar linux server while the C
part behaves sometimes slower. Seems normal that the most optimisation
takes place on the sun machines.
Len
www.len.ro
On Tue, 2007-01-16 at 10:53 +0100, Inge Solvoll wrote:
> Sorry about this OT question, but I figured you guys were the right ones to
> ask about this.
>
> A friend of mine (big linux fan) told me that tests at his workplace
> indicated a huge (up to 500%) java performance gap between linux and windows
> on machines running on the same hardware, in favour of linux. Sorry also
> about the lack of detail here, I don't know the OS and Java version. I'll
> get more details from my friend if my description of the issue doesn't ring
> a bell with anyone. You can assume that all software is max 1-2 years old.
>
> Has anyone here experienced anything similar, with either OS performing
> vastly better on any java task? Is the gap widening or closing with newer
> versions of Java and OS?
>
> Thanks
>
> Inge
Re: OT: Better Java performance on Linux
Posted by Martin Strand <do...@gmail.com>.
Are you sure it wasn't just -server vs -client VM?
I've seen the server VM (in certain apps) be up to 500% faster than the
client VM.
On Tue, 16 Jan 2007 10:53:50 +0100, Inge Solvoll <in...@gmail.com>
wrote:
> Sorry about this OT question, but I figured you guys were the right ones
> to
> ask about this.
>
> A friend of mine (big linux fan) told me that tests at his workplace
> indicated a huge (up to 500%) java performance gap between linux and
> windows
> on machines running on the same hardware, in favour of linux. Sorry also
> about the lack of detail here, I don't know the OS and Java version. I'll
> get more details from my friend if my description of the issue doesn't
> ring
> a bell with anyone. You can assume that all software is max 1-2 years
> old.
>
> Has anyone here experienced anything similar, with either OS performing
> vastly better on any java task? Is the gap widening or closing with newer
> versions of Java and OS?
>
> Thanks
>
> Inge
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Re: OT: Better Java performance on Linux
Posted by andyhot <an...@di.uoa.gr>.
Inge Solvoll wrote:
> Sorry about this OT question, but I figured you guys were the right
> ones to
> ask about this.
>
> A friend of mine (big linux fan) told me that tests at his workplace
> indicated a huge (up to 500%) java performance gap between linux and
> windows
> on machines running on the same hardware, in favour of linux. Sorry also
> about the lack of detail here, I don't know the OS and Java version. I'll
> get more details from my friend if my description of the issue doesn't
> ring
> a bell with anyone. You can assume that all software is max 1-2 years
> old.
>
> Has anyone here experienced anything similar, with either OS performing
> vastly better on any java task? Is the gap widening or closing with newer
> versions of Java and OS?
I did experience something like this a few years ago - was still using
tomcat for dev back then
and java1.4.something and i'd get 20-30 sec restarts in win while 5 sec
max in the same machine
booting in Gentoo.
Now, i wouldn't attribute all of this to java (perhaps my win was
running lots of crap under the cover)
but then again, it didn't really matter... the performance diff was huge!
>
> Thanks
>
> Inge
>
--
Andreas Andreou - andyhot@apache.org - http://andyhot.di.uoa.gr
Tapestry / Tacos developer
Open Source / J2EE Consulting
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Re: OT: Better Java performance on Linux
Posted by Martin Strand <do...@gmail.com>.
You should definitely run the server VM. Check java -version, some linux
packages are already configured to use the server VM. Otherwise, just pass
-server to java when you start it.
On Mon, 22 Jan 2007 09:35:25 +0100, Inge Solvoll <in...@gmail.com>
wrote:
> Hi
>
> Thanks, that's what I thought. Now I'm not really sure what would be best
> for our environment. We run eclipse, jboss and tomcat on our machines,
> and
> need the most efficient environment possible for those 3 things. jboss is
> restarted 1 or 2 times a day, while tomcat is restarted many times a day.
>
> What would be most efficient on such a setup, a server (EE) or a client
> (SE)
> JVM?
>
> On 1/19/07, Mark Stang <ms...@pingidentity.com> wrote:
>>
>> Inge,
>> The SE should be a client version and designed for quick GUI
>> start-up. Whereas the EE version is the "server" version and starts
>> slower,
>> but is designed for long-time running. They have different garbage
>> collection strategies.
>>
>> HTH,
>>
>> Mark
>>
>> Mark J. Stang
>> Senior Engineer/Architect
>> office: +1 303.468.2900
>> mobile: +1 303.507.2833
>> Ping Identity
>>
>>
>>
>> -----Original Message-----
>> From: Inge Solvoll [mailto:inge.tapestry@gmail.com]
>> Sent: Fri 1/19/2007 1:37 AM
>> To: Tapestry users
>> Subject: Re: OT: Better Java performance on Linux
>>
>> Thanks for great help to all of you!
>>
>> When I said "performance gap", I meant for example starting tomcat in 5
>> sec
>> instead of 20 sec, much faster eclipse, and so on.
>>
>> I'm a little confused when downloading JDK from Sun's pages, does it
>> matter
>> if I download SE or EE? Does it matter at all what JDK version I
>> download,
>> or is this only a question of configuring it correctly when installed?
>>
>> I already have tried setting a couple of VM parameters on both eclipse,
>> tomcat and jboss on startup, and gotten some minor improvements on
>> OutOfMemory crashes, but I would love to try to increase the actual
>> speed
>> performance as well. I will try to read a bit and get smarter on this
>> subject :)
>>
>> For reference, here's my Eclipse startup on my Windows XP machine:
>>
>> C:\dev\eclipse\eclipse.exe -data C:\dev\eclipse_workspace -vm
>> C:\dev\jdk1.6\bin\javaw.exe -nosplash -vmargs -Xms128m -Xmx256m
>> -XX:MaxPermSize=128m
>>
>> Thanks again!
>>
>> Inge
>>
>> On 1/16/07, Danny Angus <Da...@slc.co.uk> wrote:
>> >
>> > "Inge Solvoll" <in...@gmail.com> wrote on 16/01/2007 09:53:50:
>> >
>> >
>> > > A friend of mine (big linux fan) told me that tests at his workplace
>> > > indicated a huge (up to 500%) java performance gap between linux and
>> > > windows
>> >
>> > Of course you have to also ask what he calls performance, what did he
>> > measure, response time, throughput, resource consumption, transaction
>> > rates, concurrency, something else?
>> >
>> > d.
>> >
>> >
>> >
>> *******************************************************************************************************
>> > The information in this e-mail is confidential and for use by the
>> > addressee(s) only. If you are not the intended recipient please delete
>> the
>> > message from your computer. You may not copy or forward it or use or
>> > disclose its contents to any other person. As Internet communications
>> are
>> > capable of data corruption Student Loans Company Limited does not
>> accept
>> any
>> > responsibility for changes made to this message after it was sent. For
>> this
>> > reason it may be inappropriate to rely on advice or opinions contained
>> in an
>> > e-mail without obtaining written confirmation of it. Neither Student
>> Loans
>> > Company Limited or the sender accepts any liability or responsibility
>> for
>> > viruses as it is your responsibility to scan attachments (if any).
>> Opinions
>> > and views expressed in this e-mail are those of the sender and may not
>> > reflect the opinions and views of The Student Loans Company Limited.
>> >
>> > This footnote also confirms that this email message has been swept for
>> the
>> > presence of computer viruses.
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RE: OT: Better Java performance on Linux
Posted by Mark Stang <ms...@pingidentity.com>.
Inge,
For development, I would use the desktop version, it starts and stops quicker. As far as the garbage collection goes, you probably won't see it with all the restarts. However, for production server, I would use the J2EE Server version. And ultimately, you might want to modify the start-up parameters to get what you want. You might want to try a profiler to see where your memory usage is at it's worst.
regards,
Mark
Mark J. Stang
Senior Engineer/Architect
office: +1 303.468.2900
mobile: +1 303.507.2833
Ping Identity
-----Original Message-----
From: Inge Solvoll [mailto:inge.tapestry@gmail.com]
Sent: Mon 1/22/2007 1:35 AM
To: Tapestry users
Subject: Re: OT: Better Java performance on Linux
Hi
Thanks, that's what I thought. Now I'm not really sure what would be best
for our environment. We run eclipse, jboss and tomcat on our machines, and
need the most efficient environment possible for those 3 things. jboss is
restarted 1 or 2 times a day, while tomcat is restarted many times a day.
What would be most efficient on such a setup, a server (EE) or a client (SE)
JVM?
On 1/19/07, Mark Stang <ms...@pingidentity.com> wrote:
>
> Inge,
> The SE should be a client version and designed for quick GUI
> start-up. Whereas the EE version is the "server" version and starts slower,
> but is designed for long-time running. They have different garbage
> collection strategies.
>
> HTH,
>
> Mark
>
> Mark J. Stang
> Senior Engineer/Architect
> office: +1 303.468.2900
> mobile: +1 303.507.2833
> Ping Identity
>
>
>
> -----Original Message-----
> From: Inge Solvoll [mailto:inge.tapestry@gmail.com]
> Sent: Fri 1/19/2007 1:37 AM
> To: Tapestry users
> Subject: Re: OT: Better Java performance on Linux
>
> Thanks for great help to all of you!
>
> When I said "performance gap", I meant for example starting tomcat in 5
> sec
> instead of 20 sec, much faster eclipse, and so on.
>
> I'm a little confused when downloading JDK from Sun's pages, does it
> matter
> if I download SE or EE? Does it matter at all what JDK version I download,
> or is this only a question of configuring it correctly when installed?
>
> I already have tried setting a couple of VM parameters on both eclipse,
> tomcat and jboss on startup, and gotten some minor improvements on
> OutOfMemory crashes, but I would love to try to increase the actual speed
> performance as well. I will try to read a bit and get smarter on this
> subject :)
>
> For reference, here's my Eclipse startup on my Windows XP machine:
>
> C:\dev\eclipse\eclipse.exe -data C:\dev\eclipse_workspace -vm
> C:\dev\jdk1.6\bin\javaw.exe -nosplash -vmargs -Xms128m -Xmx256m
> -XX:MaxPermSize=128m
>
> Thanks again!
>
> Inge
>
> On 1/16/07, Danny Angus <Da...@slc.co.uk> wrote:
> >
> > "Inge Solvoll" <in...@gmail.com> wrote on 16/01/2007 09:53:50:
> >
> >
> > > A friend of mine (big linux fan) told me that tests at his workplace
> > > indicated a huge (up to 500%) java performance gap between linux and
> > > windows
> >
> > Of course you have to also ask what he calls performance, what did he
> > measure, response time, throughput, resource consumption, transaction
> > rates, concurrency, something else?
> >
> > d.
> >
> >
> >
> *******************************************************************************************************
> > The information in this e-mail is confidential and for use by the
> > addressee(s) only. If you are not the intended recipient please delete
> the
> > message from your computer. You may not copy or forward it or use or
> > disclose its contents to any other person. As Internet communications
> are
> > capable of data corruption Student Loans Company Limited does not accept
> any
> > responsibility for changes made to this message after it was sent. For
> this
> > reason it may be inappropriate to rely on advice or opinions contained
> in an
> > e-mail without obtaining written confirmation of it. Neither Student
> Loans
> > Company Limited or the sender accepts any liability or responsibility
> for
> > viruses as it is your responsibility to scan attachments (if any).
> Opinions
> > and views expressed in this e-mail are those of the sender and may not
> > reflect the opinions and views of The Student Loans Company Limited.
> >
> > This footnote also confirms that this email message has been swept for
> the
> > presence of computer viruses.
> >
> >
> >
> ********************************************************************************************************
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
> > For additional commands, e-mail: users-help@tapestry.apache.org
> >
> >
>
>
>
Re: OT: Better Java performance on Linux
Posted by Inge Solvoll <in...@gmail.com>.
Hi
Thanks, that's what I thought. Now I'm not really sure what would be best
for our environment. We run eclipse, jboss and tomcat on our machines, and
need the most efficient environment possible for those 3 things. jboss is
restarted 1 or 2 times a day, while tomcat is restarted many times a day.
What would be most efficient on such a setup, a server (EE) or a client (SE)
JVM?
On 1/19/07, Mark Stang <ms...@pingidentity.com> wrote:
>
> Inge,
> The SE should be a client version and designed for quick GUI
> start-up. Whereas the EE version is the "server" version and starts slower,
> but is designed for long-time running. They have different garbage
> collection strategies.
>
> HTH,
>
> Mark
>
> Mark J. Stang
> Senior Engineer/Architect
> office: +1 303.468.2900
> mobile: +1 303.507.2833
> Ping Identity
>
>
>
> -----Original Message-----
> From: Inge Solvoll [mailto:inge.tapestry@gmail.com]
> Sent: Fri 1/19/2007 1:37 AM
> To: Tapestry users
> Subject: Re: OT: Better Java performance on Linux
>
> Thanks for great help to all of you!
>
> When I said "performance gap", I meant for example starting tomcat in 5
> sec
> instead of 20 sec, much faster eclipse, and so on.
>
> I'm a little confused when downloading JDK from Sun's pages, does it
> matter
> if I download SE or EE? Does it matter at all what JDK version I download,
> or is this only a question of configuring it correctly when installed?
>
> I already have tried setting a couple of VM parameters on both eclipse,
> tomcat and jboss on startup, and gotten some minor improvements on
> OutOfMemory crashes, but I would love to try to increase the actual speed
> performance as well. I will try to read a bit and get smarter on this
> subject :)
>
> For reference, here's my Eclipse startup on my Windows XP machine:
>
> C:\dev\eclipse\eclipse.exe -data C:\dev\eclipse_workspace -vm
> C:\dev\jdk1.6\bin\javaw.exe -nosplash -vmargs -Xms128m -Xmx256m
> -XX:MaxPermSize=128m
>
> Thanks again!
>
> Inge
>
> On 1/16/07, Danny Angus <Da...@slc.co.uk> wrote:
> >
> > "Inge Solvoll" <in...@gmail.com> wrote on 16/01/2007 09:53:50:
> >
> >
> > > A friend of mine (big linux fan) told me that tests at his workplace
> > > indicated a huge (up to 500%) java performance gap between linux and
> > > windows
> >
> > Of course you have to also ask what he calls performance, what did he
> > measure, response time, throughput, resource consumption, transaction
> > rates, concurrency, something else?
> >
> > d.
> >
> >
> >
> *******************************************************************************************************
> > The information in this e-mail is confidential and for use by the
> > addressee(s) only. If you are not the intended recipient please delete
> the
> > message from your computer. You may not copy or forward it or use or
> > disclose its contents to any other person. As Internet communications
> are
> > capable of data corruption Student Loans Company Limited does not accept
> any
> > responsibility for changes made to this message after it was sent. For
> this
> > reason it may be inappropriate to rely on advice or opinions contained
> in an
> > e-mail without obtaining written confirmation of it. Neither Student
> Loans
> > Company Limited or the sender accepts any liability or responsibility
> for
> > viruses as it is your responsibility to scan attachments (if any).
> Opinions
> > and views expressed in this e-mail are those of the sender and may not
> > reflect the opinions and views of The Student Loans Company Limited.
> >
> > This footnote also confirms that this email message has been swept for
> the
> > presence of computer viruses.
> >
> >
> >
> ********************************************************************************************************
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
> > For additional commands, e-mail: users-help@tapestry.apache.org
> >
> >
>
>
>
RE: OT: Better Java performance on Linux
Posted by Mark Stang <ms...@pingidentity.com>.
Inge,
The SE should be a client version and designed for quick GUI start-up. Whereas the EE version is the "server" version and starts slower, but is designed for long-time running. They have different garbage collection strategies.
HTH,
Mark
Mark J. Stang
Senior Engineer/Architect
office: +1 303.468.2900
mobile: +1 303.507.2833
Ping Identity
-----Original Message-----
From: Inge Solvoll [mailto:inge.tapestry@gmail.com]
Sent: Fri 1/19/2007 1:37 AM
To: Tapestry users
Subject: Re: OT: Better Java performance on Linux
Thanks for great help to all of you!
When I said "performance gap", I meant for example starting tomcat in 5 sec
instead of 20 sec, much faster eclipse, and so on.
I'm a little confused when downloading JDK from Sun's pages, does it matter
if I download SE or EE? Does it matter at all what JDK version I download,
or is this only a question of configuring it correctly when installed?
I already have tried setting a couple of VM parameters on both eclipse,
tomcat and jboss on startup, and gotten some minor improvements on
OutOfMemory crashes, but I would love to try to increase the actual speed
performance as well. I will try to read a bit and get smarter on this
subject :)
For reference, here's my Eclipse startup on my Windows XP machine:
C:\dev\eclipse\eclipse.exe -data C:\dev\eclipse_workspace -vm
C:\dev\jdk1.6\bin\javaw.exe -nosplash -vmargs -Xms128m -Xmx256m
-XX:MaxPermSize=128m
Thanks again!
Inge
On 1/16/07, Danny Angus <Da...@slc.co.uk> wrote:
>
> "Inge Solvoll" <in...@gmail.com> wrote on 16/01/2007 09:53:50:
>
>
> > A friend of mine (big linux fan) told me that tests at his workplace
> > indicated a huge (up to 500%) java performance gap between linux and
> > windows
>
> Of course you have to also ask what he calls performance, what did he
> measure, response time, throughput, resource consumption, transaction
> rates, concurrency, something else?
>
> d.
>
>
> *******************************************************************************************************
> The information in this e-mail is confidential and for use by the
> addressee(s) only. If you are not the intended recipient please delete the
> message from your computer. You may not copy or forward it or use or
> disclose its contents to any other person. As Internet communications are
> capable of data corruption Student Loans Company Limited does not accept any
> responsibility for changes made to this message after it was sent. For this
> reason it may be inappropriate to rely on advice or opinions contained in an
> e-mail without obtaining written confirmation of it. Neither Student Loans
> Company Limited or the sender accepts any liability or responsibility for
> viruses as it is your responsibility to scan attachments (if any). Opinions
> and views expressed in this e-mail are those of the sender and may not
> reflect the opinions and views of The Student Loans Company Limited.
>
> This footnote also confirms that this email message has been swept for the
> presence of computer viruses.
>
>
> ********************************************************************************************************
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
> For additional commands, e-mail: users-help@tapestry.apache.org
>
>
Re: OT: Better Java performance on Linux
Posted by Inge Solvoll <in...@gmail.com>.
Thanks for great help to all of you!
When I said "performance gap", I meant for example starting tomcat in 5 sec
instead of 20 sec, much faster eclipse, and so on.
I'm a little confused when downloading JDK from Sun's pages, does it matter
if I download SE or EE? Does it matter at all what JDK version I download,
or is this only a question of configuring it correctly when installed?
I already have tried setting a couple of VM parameters on both eclipse,
tomcat and jboss on startup, and gotten some minor improvements on
OutOfMemory crashes, but I would love to try to increase the actual speed
performance as well. I will try to read a bit and get smarter on this
subject :)
For reference, here's my Eclipse startup on my Windows XP machine:
C:\dev\eclipse\eclipse.exe -data C:\dev\eclipse_workspace -vm
C:\dev\jdk1.6\bin\javaw.exe -nosplash -vmargs -Xms128m -Xmx256m
-XX:MaxPermSize=128m
Thanks again!
Inge
On 1/16/07, Danny Angus <Da...@slc.co.uk> wrote:
>
> "Inge Solvoll" <in...@gmail.com> wrote on 16/01/2007 09:53:50:
>
>
> > A friend of mine (big linux fan) told me that tests at his workplace
> > indicated a huge (up to 500%) java performance gap between linux and
> > windows
>
> Of course you have to also ask what he calls performance, what did he
> measure, response time, throughput, resource consumption, transaction
> rates, concurrency, something else?
>
> d.
>
>
> *******************************************************************************************************
> The information in this e-mail is confidential and for use by the
> addressee(s) only. If you are not the intended recipient please delete the
> message from your computer. You may not copy or forward it or use or
> disclose its contents to any other person. As Internet communications are
> capable of data corruption Student Loans Company Limited does not accept any
> responsibility for changes made to this message after it was sent. For this
> reason it may be inappropriate to rely on advice or opinions contained in an
> e-mail without obtaining written confirmation of it. Neither Student Loans
> Company Limited or the sender accepts any liability or responsibility for
> viruses as it is your responsibility to scan attachments (if any). Opinions
> and views expressed in this e-mail are those of the sender and may not
> reflect the opinions and views of The Student Loans Company Limited.
>
> This footnote also confirms that this email message has been swept for the
> presence of computer viruses.
>
>
> ********************************************************************************************************
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
> For additional commands, e-mail: users-help@tapestry.apache.org
>
>
Re: OT: Better Java performance on Linux
Posted by Danny Angus <Da...@slc.co.uk>.
"Inge Solvoll" <in...@gmail.com> wrote on 16/01/2007 09:53:50:
> A friend of mine (big linux fan) told me that tests at his workplace
> indicated a huge (up to 500%) java performance gap between linux and
> windows
Of course you have to also ask what he calls performance, what did he
measure, response time, throughput, resource consumption, transaction
rates, concurrency, something else?
d.
*******************************************************************************************************
The information in this e-mail is confidential and for use by the addressee(s) only. If you are not the intended recipient please delete the message from your computer. You may not copy or forward it or use or disclose its contents to any other person. As Internet communications are capable of data corruption Student Loans Company Limited does not accept any responsibility for changes made to this message after it was sent. For this reason it may be inappropriate to rely on advice or opinions contained in an e-mail without obtaining written confirmation of it. Neither Student Loans Company Limited or the sender accepts any liability or responsibility for viruses as it is your responsibility to scan attachments (if any). Opinions and views expressed in this e-mail are those of the sender and may not reflect the opinions and views of The Student Loans Company Limited.
This footnote also confirms that this email message has been swept for the presence of computer viruses.
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Re: OT: Better Java performance on Linux
Posted by Danny Angus <Da...@slc.co.uk>.
"Inge Solvoll" <in...@gmail.com> wrote on 16/01/2007 09:53:50:
> A friend of mine (big linux fan) told me that tests at his workplace
> indicated a huge (up to 500%) java performance gap between linux and
windows
<snip>
> Has anyone here experienced anything similar, with either OS performing
> vastly better on any java task? Is the gap widening or closing with
newer
> versions of Java and OS?
The reason for this is probably that the windows version of Sun's JVM is
set up with defaults for memory sizes and garbage colletion algorythms
which are optimised for a desktop pc, not a server.
All of these options can be changed manually, and a true comparions can
only be made where both instances are set up with the same values on the
same hardware.
At a simple level using -server on both will narrow the gap, but only a
good knowledge (and a refrence book) will ensure that the two things are
the same.
You should tune your server processes, and refine your applications,
according to the resource use that you measure in tests and in the wild.
I'm sorry I don't have a refrence for you to look at, but you might like
to look at my slides from apacheconEU06 at which I talked about Garbage
collection tuning.
d.
*******************************************************************************************************
The information in this e-mail is confidential and for use by the addressee(s) only. If you are not the intended recipient please delete the message from your computer. You may not copy or forward it or use or disclose its contents to any other person. As Internet communications are capable of data corruption Student Loans Company Limited does not accept any responsibility for changes made to this message after it was sent. For this reason it may be inappropriate to rely on advice or opinions contained in an e-mail without obtaining written confirmation of it. Neither Student Loans Company Limited or the sender accepts any liability or responsibility for viruses as it is your responsibility to scan attachments (if any). Opinions and views expressed in this e-mail are those of the sender and may not reflect the opinions and views of The Student Loans Company Limited.
This footnote also confirms that this email message has been swept for the presence of computer viruses.
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