membw.8

MEMBW

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
OPERATION
AUTHOR

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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:

−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-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.

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