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.