SYSTEM_BASIC_PERFORMANCE_INFORMATION

The SYSTEM_BASIC_PERFORMANCE_INFORMATION structure is what a successful call to ZwQuerySystemInformation or NtQuerySystemInformation produces in its output buffer when given the information class SystemBasicPerformanceInformation (0x7B).

Documentation Status

The SYSTEM_BASIC_PERFORMANCE_INFORMATION structure is not documented.

Layout

The SYSTEM_BASIC_PERFORMANCE_INFORMATION is 0x10 or 0x20 bytes in 32-bit and 64-bit Windows, respectively.

Offset (x86) Offset (x64) Definition
0x00 0x00
ULONG_PTR AvailablePages;
0x04 0x08
ULONG_PTR CommittedPages
0x08 0x10
ULONG_PTR CommitLimit;
0x0C 0x18
ULONG_PTR PeakCommitment;