0x00031337 / amdmemorytweak

Read and modify memory timings on the fly

AMD Memory Tweak

Read and modify memory timings on the fly 

Overview

AMD Memory Tweak lets you read and change memory timings at all times.

Support

• Supports GDDR5 based GPU's
• Supports HBM & HBM2 based GPU's
• Linux only

System Requirements

• AMD Radeon GDDR5|HBM|HBM2-based GPU(s).
• amdgpu-pro | rocm

Building

Prerequisites

• pciutils-dev | libpci-dev
• build-essential

Clone the repository

• git clone https://github.com/Eliovp/amdmemorytweak.git

cd amdmemorytweak

Build

• g++ amdmemorytweak.cpp -lpci -lresolv -o amdmemtweak

Usage

Global command line options:

--help Show this output

--gpu|--i [comma-separated gpu indices] Selected device(s)

--current List current timing values

Global command line options:

--help Show this output

--gpu|--i [comma-separated gpu indices] Selected device(s)

--current List current timing values

Command line options: (HBM2)

--CL|--cl [value]

--RAS|--ras [value]

--RCDRD|--rcdrd [value]

--RCDWR|--rcdwr [value]

--RC|--rc [value]

--RP|--rp [value]

--RRD|--rrd [value]

--RTP|--rtp [value]

--FAW|--faw [value]

--CWL|--cwl [value]

--WTRS|--wtrs [value]

--WTRL|--wtrl [value]

--WR|--wr [value]

--WRRD|--wrrd [value]

--RDWR|--rdwr [value]

--REF|--ref [value]

--MRD|--mrd [value]

--MOD|--mod [value]

--PD|--pd [value]

--CKSRE|--cksre [value]

--CKSRX|--cksrx [value]

--RFC|--rfc [value]

Command line options: (GDDR5)

--CL|--cl [value]

--W2R|--w2r [value]

--CCDS|--ccds [value]

--CCLD|--ccld [value]

--R2W|--r2w [value]

--NOPR|--nopr [value]

--NOPW|--nopw [value]

--RCDW|--rcdw [value]

--RCDWA|--rcdwa [value]

--RCDR|--rcdr [value]

--RCDRA|--rcdra [value]

--RRD|--rrd [value]

--RC|--rc [value]

--RFC|--rfc [value]

--TRP|--trp [value]

--RP_WRA|--rp_wra [value]

--RP_RDA|--rp_rda [value]

--WDATATR|--wdatatr [value]

--T32AW|--t32aw [value]

--CRCWL|--crcwl [value]

--CRCRL|--crcrl [value]

--FAW|--faw [value]

--PA2WDATA|--pa2wdata [value]

--PA2RDATA|--pa2rdata [value]

--ACTRD|--actrd [value]

--ACTWR|--actwr [value]

--RASMACTRD|--rasmactrd [value]

--RASMACWTR|--rasmacwtr [value]

--RAS2RAS|--ras2ras [value]

--RP|--rp [value]

--WRPLUSRP|--wrplusrp [value]

--BUS_TURN|--bus_turn [value]

HBM2 Example usage: ./amdmemtool -i 0,3,5 --faw 12 --RFC 208

GDDR5 Example usage: ./amdmemtool -i 1,2,4 --RFC 43 --ras2ras 176

Some extra info

Not all possible timings have been exposed. However, it's not such a big deal to add more of them in the tool. The ones available are more or like the most important ones.

Have fun!

Cheers

Tips (Although i'm not expecting too much..)

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