diksperf

NTDEV
1

Can anyone excuse and tell how to test disperf sample.

Yahoo! FareChase: Search multiple travel sites in one click.
http://farechase.yahoo.com

2

> Can anyone excuse and tell how to test disperf sample.
Correct me if I’m wrong, but your problem is that there already is
diskperf.sys on a system [if it’s a w2k, in >= wxp diskperf’s
functionality was built into PartMgr so there is no name
conflict), right?

You can not tell which of the two diskperfs is yours.

Change all “diskperf” in a sample (in the code, in “sources”,
in file names, in INF - everywhere) to, say, dperf or mydp and
shoot.

Regards,
Alex Shvedov

From: Eswari
> Date: 2005/10/26 Wed AM 06:55:54 EDT
> To: “Windows System Software Devs Interest List”
> Subject: [ntdev] diksperf
>
> Can anyone excuse and tell how to test disperf sample.
>
>
>
> __________________________________
> Yahoo! FareChase: Search multiple travel sites in one click.
> http://farechase.yahoo.com
>
> —
> Questions? First check the Kernel Driver FAQ at http://www.osronline.com/article.cfm?id=256
>
> You are currently subscribed to ntdev as: xxxxx@bellsouth.net
> To unsubscribe send a blank email to xxxxx@lists.osr.com
>

3

The sample that is given in DDK. I installed through
an inf but not able to see any debug messages in the
debugger.

— xxxxx@bellsouth.net wrote:

> Can anyone excuse and tell how to test disperf
sample.
Correct me if I’m wrong, but your problem is that
there already is
diskperf.sys on a system [if it’s a w2k, in >= wxp
diskperf’s
functionality was built into PartMgr so there is no
name
conflict), right?

You can not tell which of the two diskperfs is
yours.

Change all “diskperf” in a sample (in the code, in
“sources”,
in file names, in INF - everywhere) to, say, dperf
or mydp and
shoot.

Regards,
Alex Shvedov

>
> From: Eswari
> > Date: 2005/10/26 Wed AM 06:55:54 EDT
> > To: “Windows System Software Devs Interest List”
>
> > Subject: [ntdev] diksperf
> >
> > Can anyone excuse and tell how to test disperf
> sample.
> >
> >
> >
> >
> > Yahoo! FareChase: Search multiple travel sites in
> one click.
> > http://farechase.yahoo.com
> >
> > —
> > Questions? First check the Kernel Driver FAQ at
> http://www.osronline.com/article.cfm?id=256
> >
> > You are currently subscribed to ntdev as:
> xxxxx@bellsouth.net
> > To unsubscribe send a blank email to
> xxxxx@lists.osr.com
> >
>
>
> —
> Questions? First check the Kernel Driver FAQ at
> http://www.osronline.com/article.cfm?id=256
>
> You are currently subscribed to ntdev as:
> xxxxx@yahoo.com
> To unsubscribe send a blank email to
> xxxxx@lists.osr.com
>


Yahoo! FareChase: Search multiple travel sites in one click.
http://farechase.yahoo.com

4

Have you ensured that it is a debug build? That your driver is getting
loaded?

I would suggest adding some debug spew and maybe even a break point in the
DriverEntry of your version. Rebuild the driver and run it with WinDbg
attached to the system.

Pete

Kernel Drivers
Windows Filesystem and Device Driver Consulting
www.KernelDrivers.com
(303)546-0300

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Eswari
Sent: Wednesday, October 26, 2005 8:13 AM
To: Windows System Software Devs Interest List
Subject: Re: [ntdev] diksperf

The sample that is given in DDK. I installed through
an inf but not able to see any debug messages in the
debugger.

— xxxxx@bellsouth.net wrote:

> Can anyone excuse and tell how to test disperf
sample.
Correct me if I’m wrong, but your problem is that
there already is
diskperf.sys on a system [if it’s a w2k, in >= wxp
diskperf’s
functionality was built into PartMgr so there is no
name
conflict), right?

You can not tell which of the two diskperfs is
yours.

Change all “diskperf” in a sample (in the code, in
“sources”,
in file names, in INF - everywhere) to, say, dperf
or mydp and
shoot.

Regards,
Alex Shvedov

>
> From: Eswari
> > Date: 2005/10/26 Wed AM 06:55:54 EDT
> > To: “Windows System Software Devs Interest List”
>
> > Subject: [ntdev] diksperf
> >
> > Can anyone excuse and tell how to test disperf
> sample.
> >
> >
> >
> >
> > Yahoo! FareChase: Search multiple travel sites in
> one click.
> > http://farechase.yahoo.com
> >
> > —
> > Questions? First check the Kernel Driver FAQ at
> http://www.osronline.com/article.cfm?id=256
> >
> > You are currently subscribed to ntdev as:
> xxxxx@bellsouth.net
> > To unsubscribe send a blank email to
> xxxxx@lists.osr.com
> >
>
>
> —
> Questions? First check the Kernel Driver FAQ at
> http://www.osronline.com/article.cfm?id=256
>
> You are currently subscribed to ntdev as:
> xxxxx@yahoo.com
> To unsubscribe send a blank email to
> xxxxx@lists.osr.com
>


Yahoo! FareChase: Search multiple travel sites in one click.
http://farechase.yahoo.com

—
Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256

You are currently subscribed to ntdev as: xxxxx@kerneldrivers.com
To unsubscribe send a blank email to xxxxx@lists.osr.com

5

> The sample that is given in DDK.
Yep, that’s the one.

not able to see any debug messages in the debugger.
Change a line

ULONG DiskPerfDebug = 0;

to look like

ULONG DiskPerfDebug = 0xffff;

This might help…

Regards,
Alex Shvedov

From: Eswari
> Date: 2005/10/26 Wed AM 10:12:53 EDT
> To: “Windows System Software Devs Interest List”
> Subject: Re: [ntdev] diksperf
>
> The sample that is given in DDK. I installed through
> an inf but not able to see any debug messages in the
> debugger.
>
> — xxxxx@bellsouth.net wrote:
>
> > > Can anyone excuse and tell how to test disperf
> > sample.
> > Correct me if I’m wrong, but your problem is that
> > there already is
> > diskperf.sys on a system [if it’s a w2k, in >= wxp
> > diskperf’s
> > functionality was built into PartMgr so there is no
> > name
> > conflict), right?
> >
> > You can not tell which of the two diskperfs is
> > yours.
> >
> > Change all “diskperf” in a sample (in the code, in
> > “sources”,
> > in file names, in INF - everywhere) to, say, dperf
> > or mydp and
> > shoot.
> >
> >
> > Regards,
> > Alex Shvedov
> >
> >
> > >
> > > From: Eswari
> > > Date: 2005/10/26 Wed AM 06:55:54 EDT
> > > To: “Windows System Software Devs Interest List”
> >
> > > Subject: [ntdev] diksperf
> > >
> > > Can anyone excuse and tell how to test disperf
> > sample.
> > >
> > >
> > >
> > >
> > > Yahoo! FareChase: Search multiple travel sites in
> > one click.
> > > http://farechase.yahoo.com
> > >
> > > —
> > > Questions? First check the Kernel Driver FAQ at
> > http://www.osronline.com/article.cfm?id=256
> > >
> > > You are currently subscribed to ntdev as:
> > xxxxx@bellsouth.net
> > > To unsubscribe send a blank email to
> > xxxxx@lists.osr.com
> > >
> >
> >
> > —
> > Questions? First check the Kernel Driver FAQ at
> > http://www.osronline.com/article.cfm?id=256
> >
> > You are currently subscribed to ntdev as:
> > xxxxx@yahoo.com
> > To unsubscribe send a blank email to
> > xxxxx@lists.osr.com
> >
>
>
>
>
>
> Yahoo! FareChase: Search multiple travel sites in one click.
> http://farechase.yahoo.com
>
> —
> Questions? First check the Kernel Driver FAQ at http://www.osronline.com/article.cfm?id=256
>
> You are currently subscribed to ntdev as: xxxxx@bellsouth.net
> To unsubscribe send a blank email to xxxxx@lists.osr.com
>

6

Also check if the diskperf driver is protected by SFP. In that case u
r driver wont be loaded.

Best rename ur the diskperf.sys to mydiskperf.sys.
Add a new service entry for u r driver similar to the one for diskperf
Add ur driver as a upper filter to the volume class.

Do this on a test machine

Regards
Farz

On 10/26/05, Eswari wrote:
> Can anyone excuse and tell how to test disperf sample.
>
>
>
> __________________________________
> Yahoo! FareChase: Search multiple travel sites in one click.
> http://farechase.yahoo.com
>
> —
> Questions? First check the Kernel Driver FAQ at
> http://www.osronline.com/article.cfm?id=256
>
> You are currently subscribed to ntdev as: xxxxx@gmail.com
> To unsubscribe send a blank email to xxxxx@lists.osr.com
>

7

>Can anyone excuse and tell how to test disperf sample.

Dear Eswari,

this is a very open ended question. There could be many reasons for not
being able to see the dubug messages.

  • You have not compiled a checked build.
  • The debugger is not functionaling properly. Have you checkd the cables?
  • Windows has file protection enabled, this feature doesn’t allow you to
    replace protected windows files. Open regedit and search for SFCDisable. the
    value should be 0xffff9d for SFC to be disabled.

Best,

amitrajit

8

I build in the checked environement and connection is
established as i can see debug messages for some other
drivers.
But i will check as you said.

— Developer wrote:

> >Can anyone excuse and tell how to test disperf
> sample.
>
> Dear Eswari,
>
> this is a very open ended question. There could be
> many reasons for not
> being able to see the dubug messages.
>
> - You have not compiled a checked build.
> - The debugger is not functionaling properly. Have
> you checkd the cables?
> - Windows has file protection enabled, this feature
> doesn’t allow you to
> replace protected windows files. Open regedit and
> search for SFCDisable. the
> value should be 0xffff9d for SFC to be disabled.
>
> Best,
>
> amitrajit
>
> —
> Questions? First check the Kernel Driver FAQ at
> http://www.osronline.com/article.cfm?id=256
>
> You are currently subscribed to ntdev as: unknown
> lmsubst tag argument: ‘’
> To unsubscribe send a blank email to
xxxxx@lists.osr.com

__________________________________
Yahoo! FareChase: Search multiple travel sites in one click.
http://farechase.yahoo.com