---
name: "likwid-memsweeper"
section: "1"
platform: "linux"
package: "likwid"
version: "5.4.1+dfsg-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/likwid-memsweeper"
---

# likwid-memsweeper(1)

A tool to clean up NUMA memory domains and last level caches.

## NAME

likwid-memsweeper - A tool to clean up NUMA memory domains and last level caches.

## SYNOPSIS

**likwid-memsweeper** \[-hv\] \[**-c** *\<node\_list\>*\]

## DESCRIPTION

**likwid-memsweeper** is a command line application to shrink the file buffer cache by filling the NUMA domain with random pages. Moreover, the tool invalidates all cachelines in the LLC.

## OPTIONS

- **-h, --help**

  prints a help message to standard output, then exits.

- **-v, --version**

  prints a version message to standard output, then exits.

- **-c \<node\_list\>**

  set the NUMA domain for sweeping.

## AUTHOR

Written by Thomas Gruber \<thomas.roehl@googlemail.com\>.

## BUGS

Report Bugs on \<https://github.com/RRZE-HPC/likwid/issues\>.

## SEE ALSO

[likwid-perfctr(1)](/likwid-perfctr/1.md), [likwid-features(1)](/likwid-features/1.md), [likwid-pin(1)](/likwid-pin/1.md), [likwid-powermeter(1)](/likwid-powermeter/1.md),