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About time spend when processing Dispatch routine?

OSR_Community_UserOSR_Community_User Member Posts: 110,217
Can someone tell me how long can driver be on a Dispatch_LEVEL, I mean time
in seconds (inside Dispatch routine)? I don't remeber if I have read this in
DDK.

Regards,
Neno

Comments

  • OSR_Community_UserOSR_Community_User Member Posts: 110,217
    These are some of the time constraints..

    Not more than 50 Microseconds at Device IRQL

    Not more than 25 Microseconds while holding any DISPATCH_LEVEL Spinlocks...

    Not more than 1 Millisecond at DISPATCH_LEVEL (Dpc routine, startio routine, I/o timer routine, I/o Completion Call backs, AdapterControl Routines...)

    -Sriram

    Integra Micro Systems (P) Ltd.
    [email protected]
    www.integramicro.com



    -----Original Message-----
    From: Prekupec Boris
    To: NT Developers Interest List
    Date: Monday, May 29, 2000 9:13 PM
    Subject: [ntdev] About time spend when processing Dispatch routine?


    Can someone tell me how long can driver be on a Dispatch_LEVEL, I mean time
    in seconds (inside Dispatch routine)? I don't remeber if I have read this in
    DDK.

    Regards,
    Neno


    ---
    You are currently subscribed to ntdev as: [email protected]
    To unsubscribe send a blank email to $subst('Email.Unsub')
  • OSR_Community_UserOSR_Community_User Member Posts: 110,217
    IIRC the recommendation is - not more than several timeslices (10ms on
    NT4).

    ----- Original Message -----
    From: Prekupec Boris <[email protected]>
    To: NT Developers Interest List <[email protected]>
    Sent: Monday, May 29, 2000 7:24 PM
    Subject: [ntdev] About time spend when processing Dispatch routine?


    > Can someone tell me how long can driver be on a Dispatch_LEVEL, I mean
    time
    > in seconds (inside Dispatch routine)? I don't remeber if I have read this
    in
    > DDK.
    >
    > Regards,
    > Neno
    >
    >
    > ---
    > You are currently subscribed to ntdev as: [email protected]
    > To unsubscribe send a blank email to $subst('Email.Unsub')
    >
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