hi
Is there a way that i could filter or hook memory mapped I/O on a file ?
Regards,
VC
Not actually… but if you can clear the cache after every PAGING_IO calls
you can achive the same.
Raghwendra
----- Original Message -----
From: “Vishnu P”
Newsgroups: ntfsd
To: “Windows File Systems Devs Interest List”
Sent: Wednesday, June 29, 2005 7:39 PM
Subject: [ntfsd] memory mapped files
> hi
>
> Is there a way that i could filter or hook memory mapped I/O on a file ?
>
> Regards,
> VC
>
>
>
> —
> Questions? First check the IFS FAQ at
https://www.osronline.com/article.cfm?id=17
>
> You are currently subscribed to ntfsd as: xxxxx@mahindrabt.com
> To unsubscribe send a blank email to xxxxx@lists.osr.com
>
in that case performance of the system will be less. right?
“Raghwendra” wrote in message news:xxxxx@ntfsd…
> Not actually… but if you can clear the cache after every PAGING_IO
calls
> you can achive the same.
>
> Raghwendra
> ----- Original Message -----
> From: “Vishnu P”
> Newsgroups: ntfsd
> To: “Windows File Systems Devs Interest List”
> Sent: Wednesday, June 29, 2005 7:39 PM
> Subject: [ntfsd] memory mapped files
>
>
> > hi
> >
> > Is there a way that i could filter or hook memory mapped I/O on a file ?
> >
> > Regards,
> > VC
> >
> >
> >
> > —
> > Questions? First check the IFS FAQ at
> https://www.osronline.com/article.cfm?id=17
> >
> > You are currently subscribed to ntfsd as: xxxxx@mahindrabt.com
> > To unsubscribe send a blank email to xxxxx@lists.osr.com
> >
>
>
That’s true … but as far as i know this is the only way…
Raghwendra
----- Original Message -----
From: “Vishnu P”
Newsgroups: ntfsd
To: “Windows File Systems Devs Interest List”
Sent: Thursday, June 30, 2005 5:09 PM
Subject: Re:[ntfsd] memory mapped files
> in that case performance of the system will be less. right?
>
> “Raghwendra” wrote in message news:xxxxx@ntfsd…
> > Not actually… but if you can clear the cache after every PAGING_IO
> calls
> > you can achive the same.
> >
> > Raghwendra
> > ----- Original Message -----
> > From: “Vishnu P”
> > Newsgroups: ntfsd
> > To: “Windows File Systems Devs Interest List”
> > Sent: Wednesday, June 29, 2005 7:39 PM
> > Subject: [ntfsd] memory mapped files
> >
> >
> > > hi
> > >
> > > Is there a way that i could filter or hook memory mapped I/O on a file
?
> > >
> > > Regards,
> > > VC
> > >
> > >
> > >
> > > —
> > > Questions? First check the IFS FAQ at
> > https://www.osronline.com/article.cfm?id=17
> > >
> > > You are currently subscribed to ntfsd as: xxxxx@mahindrabt.com
> > > To unsubscribe send a blank email to xxxxx@lists.osr.com
> > >
> >
> >
>
>
>
> —
> Questions? First check the IFS FAQ at
https://www.osronline.com/article.cfm?id=17
>
> You are currently subscribed to ntfsd as: xxxxx@mahindrabt.com
> To unsubscribe send a blank email to xxxxx@lists.osr.com
>
is it just purging the cache or is there any thing i need to do ??
VC
“Raghwendra” wrote in message news:xxxxx@ntfsd…
> That’s true … but as far as i know this is the only way…
>
> Raghwendra
>
> ----- Original Message -----
> From: “Vishnu P”
> Newsgroups: ntfsd
> To: “Windows File Systems Devs Interest List”
> Sent: Thursday, June 30, 2005 5:09 PM
> Subject: Re:[ntfsd] memory mapped files
>
>
> > in that case performance of the system will be less. right?
> >
> > “Raghwendra” wrote in message
news:xxxxx@ntfsd…
> > > Not actually… but if you can clear the cache after every PAGING_IO
> > calls
> > > you can achive the same.
> > >
> > > Raghwendra
> > > ----- Original Message -----
> > > From: “Vishnu P”
> > > Newsgroups: ntfsd
> > > To: “Windows File Systems Devs Interest List”
> > > Sent: Wednesday, June 29, 2005 7:39 PM
> > > Subject: [ntfsd] memory mapped files
> > >
> > >
> > > > hi
> > > >
> > > > Is there a way that i could filter or hook memory mapped I/O on a
file
> ?
> > > >
> > > > Regards,
> > > > VC
> > > >
> > > >
> > > >
> > > > —
> > > > Questions? First check the IFS FAQ at
> > > https://www.osronline.com/article.cfm?id=17
> > > >
> > > > You are currently subscribed to ntfsd as: xxxxx@mahindrabt.com
> > > > To unsubscribe send a blank email to
xxxxx@lists.osr.com
> > > >
> > >
> > >
> >
> >
> >
> > —
> > Questions? First check the IFS FAQ at
> https://www.osronline.com/article.cfm?id=17
> >
> > You are currently subscribed to ntfsd as: xxxxx@mahindrabt.com
> > To unsubscribe send a blank email to xxxxx@lists.osr.com
> >
>
>
I believe that CcPurgeCacheSection does not purge section if the file has
been mapped, and in DDK you can read
"
CcPurgeCacheSection will not purge mapped files.
"
“Vishnu P” wrote in message news:xxxxx@ntfsd…
> is it just purging the cache or is there any thing i need to do ??
>
> VC
>
> “Raghwendra” wrote in message news:xxxxx@ntfsd…
>> That’s true … but as far as i know this is the only way…
>>
>> Raghwendra
>>
>> ----- Original Message -----
>> From: “Vishnu P”
>> Newsgroups: ntfsd
>> To: “Windows File Systems Devs Interest List”
>> Sent: Thursday, June 30, 2005 5:09 PM
>> Subject: Re:[ntfsd] memory mapped files
>>
>>
>> > in that case performance of the system will be less. right?
>> >
>> > “Raghwendra” wrote in message
> news:xxxxx@ntfsd…
>> > > Not actually… but if you can clear the cache after every
>> > > PAGING_IO
>> > calls
>> > > you can achive the same.
>> > >
>> > > Raghwendra
>> > > ----- Original Message -----
>> > > From: “Vishnu P”
>> > > Newsgroups: ntfsd
>> > > To: “Windows File Systems Devs Interest List”
>> > > Sent: Wednesday, June 29, 2005 7:39 PM
>> > > Subject: [ntfsd] memory mapped files
>> > >
>> > >
>> > > > hi
>> > > >
>> > > > Is there a way that i could filter or hook memory mapped I/O on a
> file
>> ?
>> > > >
>> > > > Regards,
>> > > > VC
>> > > >
>> > > >
>> > > >
>> > > > —
>> > > > Questions? First check the IFS FAQ at
>> > > https://www.osronline.com/article.cfm?id=17
>> > > >
>> > > > You are currently subscribed to ntfsd as: xxxxx@mahindrabt.com
>> > > > To unsubscribe send a blank email to
> xxxxx@lists.osr.com
>> > > >
>> > >
>> > >
>> >
>> >
>> >
>> > —
>> > Questions? First check the IFS FAQ at
>> https://www.osronline.com/article.cfm?id=17
>> >
>> > You are currently subscribed to ntfsd as: xxxxx@mahindrabt.com
>> > To unsubscribe send a blank email to xxxxx@lists.osr.com
>> >
>>
>>
>
>
>
Filter IRP_PAGING_IO IRPs going to the FSD.
Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
xxxxx@storagecraft.com
http://www.storagecraft.com
----- Original Message -----
From: “Vishnu P”
Newsgroups: ntfsd
To: “Windows File Systems Devs Interest List”
Sent: Wednesday, June 29, 2005 6:09 PM
Subject: [ntfsd] memory mapped files
> hi
>
> Is there a way that i could filter or hook memory mapped I/O on a file ?
>
> Regards,
> VC
>
>
>
> —
> Questions? First check the IFS FAQ at
https://www.osronline.com/article.cfm?id=17
>
> You are currently subscribed to ntfsd as: xxxxx@storagecraft.com
> To unsubscribe send a blank email to xxxxx@lists.osr.com