DAMON user-space tool

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  • License: GNU General Public License v2 (GPLv2)
  • Author: SeongJae Park
  • Requires: Python >=3.6
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Project description

DAMO: DAMon Operator

This directory contains a user space tool for DAMON, namely damo. Using the tool, you can monitor the data access patterns of your system and make data access-aware memory management optimizations.

Demo Video

Please click below thumbnail to show the short demo video.

DAMON: a demo for the Kernel Summit 2020

Getting Started

Follow below instructions and commands to monitor and visualize the access pattern of your workload.

$ # build the kernel with CONFIG_DAMON_*=y, install, reboot
$ sudo mount -t debugfs none /sys/kernel/debug/
$ sudo pip3 install damo
$ damo record $(pidof <your workload>)
$ damo report heats --plot stdout --stdout_heatmap_color emotion

The last command will show the access pattern of your workload, like below:

masim zigzag heatmap in ascii masim stairs heatmap in ascii

For more detailed usage, please refer to USAGE.md.

Project details

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Avatar for osa-amazon from gravatar.com osa-amazon Avatar for sj-damo from gravatar.com sj-damo

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  • License: GNU General Public License v2 (GPLv2)
  • Author: SeongJae Park
  • Requires: Python >=3.6
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