NtSetIntervalProfile

2OO1, 25 February

NTSYSAPI 
NTSTATUS
NTAPI


NtSetIntervalProfile(



  IN ULONG                Interval,
  IN KPROFILE_SOURCE      Source );

Function NtSetIntervalProfile sets delay between performance counter's ticks. Setting profile's interval has global effect for all running processes.

User can set interval only for software performance counters. To determine if counter is software or not, call NtQueryIntervalProfile. If returned interval is zero, queried counter is hardware counter (build in CPU).

Interval New interval, in ms.

Source Performance counter's identifier, defined in KPROFILE_SOURCE enumeration type.

Documented by:

Tomasz Nowak

Requirements:

Library: ntdll.lib

Undocumented functions of NTDLL