Undocumented functions of NTDLL

2OO1, 25 February


Gridstore - NonStop Storage

NtQueryIntervalProfile
NtQueryIntervalProfile

NTSYSAPI 
NTSTATUS
NTAPI

NtQueryIntervalProfile(

IN KPROFILE_SOURCE ProfileSource, OUT PULONG Interval );




Function NtQueryIntervalProfile retrieves currently set delay between performance counter's ticks. See also description of NtSetIntervalProfile function.



  • ProfileSource
  •     Performance counter identifier defined in KPROFILE_SOURCE enumeration type.
  • Interval
  •     Pointer to ULONG value receiving current interval, in ms. If received value is zero, counter specified in ProfileSource parameter is hardware counter (performacne counter build in CPU).


    Documented by:
    Tomasz Nowak



    Requirements:
    Library: ntdll.lib


    See also:
    KPROFILE_SOURCE
    NtCreateProfile
    NtSetIntervalProfile