htfy96 / libhugepagetune

A toy library that performs huge page merging based on fine-grained, real-time Intel PEBS memory access traces

libhugepagetune

A library that performs huge page merging based on fine-grained, real-time Intel PEBS memory access traces

Usage

Build

Prerequiste:

• libpfm4-dev
• libtbb-dev
• g++ >= 7

mkdir -p build
cd build
cmake ..
make

Usage

LD_PRELOAD="./libhugepagetune.so" any-app

Environment variables

• HPT_DEBUG: output debug log
• HPT_INTERVAL: interval to scan new threads and perform merging
• HPT_SAMPLE_PERIOD: mem sample period
• HPT_WAKEUP_EVENT: after WAKEUP_EVENT the data is pulled into our monitor
• HPT_THRESHOLD: only huge pages accessed > THRESHOLD times can be merged