CPU load due to having drives on a server compressed.

[Guest aengus]

Hi,

 

A drive on a Windows 2003 server is compressed and a user is reading

and writing files on that drive over the LAN from his desktop

computer. Which computer is doing the processing associated with

compressing and decompressing the data? Is it the server, or the

user's desktop machine?

 

Thanks,

 

Aengus.

[Guest Dave Patrick]

Re: CPU load due to having drives on a server compressed.

 

user's

 

--

 

Regards,

 

Dave Patrick ....Please no email replies - reply in newsgroup.

Microsoft Certified Professional

Microsoft MVP [Windows]

http://www.microsoft.com/protect

 

"aengus" wrote:

> Hi,

>

> A drive on a Windows 2003 server is compressed and a user is reading

> and writing files on that drive over the LAN from his desktop

> computer. Which computer is doing the processing associated with

> compressing and decompressing the data? Is it the server, or the

> user's desktop machine?

>

> Thanks,

>

> Aengus.

>

[Guest Coraleigh Miller]

Re: CPU load due to having drives on a server compressed.

 

Hi aengus,

 

The server is doing all the work. The user may notice a speed decrease while

opening or saving files on a compressed drive but this is due to the server

and network bandwidth.

http://support.microsoft.com/kb/251186

 

Coraleigh Miller

 

 

"aengus" <aengus@gmail.com> wrote in message

news:1187578481.953393.152810@e9g2000prf.googlegroups.com...

> Hi,

>

> A drive on a Windows 2003 server is compressed and a user is reading

> and writing files on that drive over the LAN from his desktop

> computer. Which computer is doing the processing associated with

> compressing and decompressing the data? Is it the server, or the

> user's desktop machine?

>

> Thanks,

>

> Aengus.

>

[Guest Coraleigh Miller]

Re: CPU load due to having drives on a server compressed.

 

Hi again aengus,

 

I defer to Dave Patrick on this one. :-)

I just ran perfmon on my server and client and setup a quick test to see

what happened and sure enough my client's CPU and IO spiked while the file

server stayed level.

 

Thanks Dave!

 

Coraleigh

 

 

"aengus" <aengus@gmail.com> wrote in message

news:1187578481.953393.152810@e9g2000prf.googlegroups.com...

> Hi,

>

> A drive on a Windows 2003 server is compressed and a user is reading

> and writing files on that drive over the LAN from his desktop

> computer. Which computer is doing the processing associated with

> compressing and decompressing the data? Is it the server, or the

> user's desktop machine?

>

> Thanks,

>

> Aengus.

>

[Guest aengus]

Re: CPU load due to having drives on a server compressed.

 

There's two conflicting answers! The KB article seems to indicate that

the server is doing all the work.

 

Thanks,

 

Aengus.

 

 

On Aug 20, 1:15 pm, "Coraleigh Miller" <CoraleighMil...@yahoo.com>

wrote:

> Hi aengus,

>

> The server is doing all the work. The user may notice a speed decrease while

> opening or saving files on a compressed drive but this is due to the server

> and network bandwidth.http://support.microsoft.com/kb/251186

>

> Coraleigh Miller

>

> "aengus" <aen...@gmail.com> wrote in message

>

> news:1187578481.953393.152810@e9g2000prf.googlegroups.com...

>

> > Hi,

>

> > A drive on a Windows 2003 server is compressed and a user is reading

> > and writing files on that drive over the LAN from his desktop

> > computer. Which computer is doing the processing associated with

> > compressing and decompressing the data? Is it the server, or the

> > user's desktop machine?

>

> > Thanks,

>

> > Aengus

[Guest aengus]

Re: CPU load due to having drives on a server compressed.

 

Ok, fair enough...

 

But the KB article _does_ suggest differently doesn't it? In the case

of decompression, the article says "Compressed files are also expanded

before copying over the network", how could the user's computer do the

work in this case?

 

Cheers,

 

Aengus.

 

 

 

On Aug 20, 1:38 pm, "Coraleigh Miller" <CoraleighMil...@yahoo.com>

wrote:

> Hi again aengus,

>

> I defer to Dave Patrick on this one. :-)

> I just ran perfmon on my server and client and setup a quick test to see

> what happened and sure enough my client's CPU and IO spiked while the file

> server stayed level.

>

> Thanks Dave!

>

> Coraleigh

>

> "aengus" <aen...@gmail.com> wrote in message

>

> news:1187578481.953393.152810@e9g2000prf.googlegroups.com...

>

> > Hi,

>

> > A drive on a Windows 2003 server is compressed and a user is reading

> > and writing files on that drive over the LAN from his desktop

> > computer. Which computer is doing the processing associated with

> > compressing and decompressing the data? Is it the server, or the

> > user's desktop machine?

>

> > Thanks,

>

> > Aengus.

[Guest Coraleigh Miller]

Re: CPU load due to having drives on a server compressed.

 

It does indeed! Out of my respect for Dave Patrick however I decided to

perform my own little test as well as gave a closer inspection to the

article and it doesnt actually cite our situation exactly. Try running a

perfmon test on your server and client after hours to see what you come up

with.

 

Coraleigh

 

 

"aengus" <aengus@gmail.com> wrote in message

news:1187582144.752280.291190@l22g2000prc.googlegroups.com...

> Ok, fair enough...

>

> But the KB article _does_ suggest differently doesn't it? In the case

> of decompression, the article says "Compressed files are also expanded

> before copying over the network", how could the user's computer do the

> work in this case?

>

> Cheers,

>

> Aengus.

>

>

>

> On Aug 20, 1:38 pm, "Coraleigh Miller" <CoraleighMil...@yahoo.com>

> wrote:

>> Hi again aengus,

>>

>> I defer to Dave Patrick on this one. :-)

>> I just ran perfmon on my server and client and setup a quick test to see

>> what happened and sure enough my client's CPU and IO spiked while the

>> file

>> server stayed level.

>>

>> Thanks Dave!

>>

>> Coraleigh

>>

>> "aengus" <aen...@gmail.com> wrote in message

>>

>> news:1187578481.953393.152810@e9g2000prf.googlegroups.com...

>>

>> > Hi,

>>

>> > A drive on a Windows 2003 server is compressed and a user is reading

>> > and writing files on that drive over the LAN from his desktop

>> > computer. Which computer is doing the processing associated with

>> > compressing and decompressing the data? Is it the server, or the

>> > user's desktop machine?

>>

>> > Thanks,

>>

>> > Aengus.

>

>

[Guest Dave Patrick]

Re: CPU load due to having drives on a server compressed.

 

Thank you for the compliment. I also read your article with interest. I

don't see how/why the server would handle the request for

compression/decompression. I'll be interested to see aengus's test result as

well.

 

--

 

Regards,

 

Dave Patrick ....Please no email replies - reply in newsgroup.

Microsoft Certified Professional

Microsoft MVP [Windows]

http://www.microsoft.com/protect

 

"Coraleigh Miller" wrote:

> It does indeed! Out of my respect for Dave Patrick however I decided to

> perform my own little test as well as gave a closer inspection to the

> article and it doesnt actually cite our situation exactly. Try running a

> perfmon test on your server and client after hours to see what you come up

> with.

>

> Coraleigh

[Guest aengus]

Re: CPU load due to having drives on a server compressed.

 

Now that I know what MVP stands for, it seems Dave Patrick is one to

be trusted on this issue alright!

 

I'll run a perfmon at some point just to have a look, but I consider

the question answered now.

 

Thanks again,

 

Aengus.

 

 

On Aug 20, 2:08 pm, "Coraleigh Miller" <CoraleighMil...@yahoo.com>

wrote:

> It does indeed! Out of my respect for Dave Patrick however I decided to

> perform my own little test as well as gave a closer inspection to the

> article and it doesnt actually cite our situation exactly. Try running a

> perfmon test on your server and client after hours to see what you come up

> with.

>

> Coraleigh

>

> "aengus" <aen...@gmail.com> wrote in message

>

> news:1187582144.752280.291190@l22g2000prc.googlegroups.com...

>

> > Ok, fair enough...

>

> > But the KB article _does_ suggest differently doesn't it? In the case

> > of decompression, the article says "Compressed files are also expanded

> > before copying over the network", how could the user's computer do the

> > work in this case?

>

> > Cheers,

>

> > Aengus.

>

> > On Aug 20, 1:38 pm, "Coraleigh Miller" <CoraleighMil...@yahoo.com>

> > wrote:

> >> Hi again aengus,

>

> >> I defer to Dave Patrick on this one. :-)

> >> I just ran perfmon on my server and client and setup a quick test to see

> >> what happened and sure enough my client's CPU and IO spiked while the

> >> file

> >> server stayed level.

>

> >> Thanks Dave!

>

> >> Coraleigh

>

> >> "aengus" <aen...@gmail.com> wrote in message

>

> >>news:1187578481.953393.152810@e9g2000prf.googlegroups.com...

>

> >> > Hi,

>

> >> > A drive on a Windows 2003 server is compressed and a user is reading

> >> > and writing files on that drive over the LAN from his desktop

> >> > computer. Which computer is doing the processing associated with

> >> > compressing and decompressing the data? Is it the server, or the

> >> > user's desktop machine?

>

> >> > Thanks,

>

> >> > Aengus.

[Guest aengus]

Re: CPU load due to having drives on a server compressed.

 

I did a quick test.

 

During the copying of files from the server to my local machine, the

only noticeable increase in CPU usage was on the local machine. When

copying files to the server, there was a similar increase in local

machine CPU usage, but this seemed to be accompanied by a small

increase in server CPU usage.

 

Aengus.

 

 

On Aug 20, 2:19 pm, "Dave Patrick" <DSPatr...@nospam.gmail.com> wrote:

> Thank you for the compliment. I also read your article with interest. I

> don't see how/why the server would handle the request for

> compression/decompression. I'll be interested to see aengus's test result as

> well.

>

> --

>

> Regards,

>

> Dave Patrick ....Please no email replies - reply in newsgroup.

> Microsoft Certified Professional

> Microsoft MVP [Windows]http://www.microsoft.com/protect

>

> "Coraleigh Miller" wrote:

> > It does indeed! Out of my respect for Dave Patrick however I decided to

> > perform my own little test as well as gave a closer inspection to the

> > article and it doesnt actually cite our situation exactly. Try running a

> > perfmon test on your server and client after hours to see what you come up

> > with.

>

> > Coraleigh