NAME¶

membw - tool for generating memory bandwidth

SYNOPSIS¶

membw [OPTIONS][OPERATION]

DESCRIPTION¶

The membw software tool provides a way to stress local and remote memory bandwidth using a variety of memory operations. The tool allows the user to choose an operation to generate a specified amount of memory bandwidth on a selected core.

OPTIONS¶

membw options are as follow:

--help

show help

-c, --cpu

cpu to generate B/W

-b, --bandwidth

memory B/W specified in MBps

OPERATION¶

--prefetch-t0

prefetcht0

--prefetch-t1

prefetcht1

--prefetch-t2

prefetcht2

--prefetch-nta

prefetchtnta

--prefetch-w

prefetchw

--read

x86 loads

--read-sse

SSE loads

--nt-read-sse

SSE NT loads

--read-mod-write

x86 load XOR write

--write

x86 stores

--write-avx512

AVX512 stores

--write-clwb

x86 stores + clwb

--write-flush

x86 stores & clflush (naturally generates loads & stores)

--write-sse

SSE stores

--write-sse-flush

SSE stores & clflush (naturally generates loads & stores)

--nt-write

x86 NT stores

--nt-write-avx512

AVX512 NT stores

--nt-write-clwb

x86 NT stores + clwb

--nt-write-sse

SSE NT stores

AUTHOR¶

membw was written by Michal Aleksinski <michalx.aleksinski@intel.com>, Adrian Boczkowski <adrianx.boczkowski@intel.com> Wojciech Andralojc <wojciechx.andralojc@intel.com>, Marcel Cornu <marcel.d.cornu@intel.com>,

This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.