XMRig v6.3.3: CPU/GPU miner RandomX, KawPow, CryptoNight and AstroBWT

XMRig v6.3.3: CPU/GPU miner RandomX, KawPow, CryptoNight and AstroBWT

XMRig — High-performance cross-platform miner RandomX, CryptoNight and Argon2 CPU / GPU open source, with official support for Windows.

November 30, Monero (XMR) will work hard on block 1978433 to switch to a new algorithm. The upcoming fork will change the current CryptoNight R mining algorithm to the new Random X PoW algorithm, essentially transferring the coin mining to the CPU.

There are already several miners mining coins using the RandomX algorithm, one of which is XMRig v5.1.0, which you can download from the links below.



bc3b0f4b3442b5159b57510d44123e96618caef637bc2202633cafa33d75ae02 *xmrig-6.3.3-bionic-x64.tar.gz
0bfb7ba998e5f70682cb3ee5332269a06b86f7884e98588014aec179f5b4f988 *xmrig-6.3.3-focal-x64.tar.gz
cfda6309ed0ce7ad0529500a78eac2112a47f79796a8d0ed4fee72211bcb168f *xmrig-6.3.3-freebsd-static-x64.tar.gz
ad1133cdcb486bab2368347b3ab35e83e5cd492c4bc6bfcb11a4b4c99d2c8014 *xmrig-6.3.3-linux-static-x64.tar.gz
8572c53b8085f5f269aa1070db460c5c5d6f79cfd8a211f74a54aa0841e4543f *xmrig-6.3.3-linux-x64.tar.gz
e9882f125c5b8c3740e82e916b0c4363572923b8e6eff1e89c52f153f6d70559 *xmrig-6.3.3-macos-x64.tar.gz
f13410f88d35cfe09c76efd75d55e9445c718f069e97858a261450af212ba641 *xmrig-6.3.3-gcc-win64.zip
0c227d4876456601ab966a386ab360cfbc957b7ff4ccc4d7944f25d49975c6bf *xmrig-6.3.3-msvc-cuda10_2-win64.zip
98f370f87b75e9d2718837c91746a0e6e04d292f4a348bc3fc457c5abdbc94e5 *xmrig-6.3.3-msvc-win64.zip


GPG public key: xmrig.com + github






  • #1817 Fixed self-select login sequence.
  • Added brand new build from source documentation.
  • New binary downloads for macOS (macos-x64), FreeBSD (freebsd-static-x64), Linux (linux-static-x64), Ubuntu 18.04 (bionic-x64), Ubuntu 20.04 (focal-x64).
  • Generic Linux download xenial-x64 renamed to linux-x64.
  • Builds without SSL/TLS support are no longer provided.
  • Improved CUDA loader error reporting and fixed plugin load on Linux.
  • Fixed build warnings with Clang compiler.
  • Fixed colors on macOS.


  • #1794 More robust 1 GB pages handling.
    • Don’t allocate 1 GB per thread if 1 GB is the default huge page size.
    • Try to allocate scratchpad from dataset’s 1 GB huge pages, if normal huge pages are not available.
    • Correctly initialize RandomX cache if 1 GB pages fail to allocate on a first NUMA node.
  • #1806 Fixed macOS battery detection.
  • #1809 Improved auto configuration on ARM CPUs.
    • Added retrieving ARM CPU names, based on lscpu code and database.


  • #1786 Added pause-on-battery option, supported on Windows and Linux.
  • Added command line options --randomx-cache-qos and --argon2-impl.


  • #1771 Adopted new SSE2NEON and reduced ARM-specific changes.
  • #1774 RandomX: Added new option cache_qos in randomx object for cache QoS support.
  • #1777 Added support for upcoming Haven offshore fork.
    • #1780 CryptoNight OpenCL: fix for long input data.


  • AstroBWT: fixed OpenCL compilation on some systems.
  • KawPow: optimized CPU share verification.
  • RandomX: added error message when MSR mod fails.
  • Fixed GPU health readings for pre Vega GPUs on Linux.
  • Added results and connection reports.
  • KawPow: fixed DAG initialization on slower AMD GPUs.
  • KawPow: fixed rare duplicate share errors.
  • RandomX: small speedup on Ryzen CPUs.


  • Fixed mining resume after donation round for pools with self-select feature.
  • Added option "mode" (or --randomx-mode) for RandomX.
    • Added memory information on miner startup.
    • Added resources field to summary API with memory information and load average.


  • Fixed compatibility with some AMD GPUs.
  • Fixed build without RandomX.
  • Added command line options --cuda-bfactor-hint and --cuda-bsleep-hint.
  • Fixed 32-bit ARM compilation.


This version is first stable unified 3 in 1 GPU+CPU release, OpenCL support built in in miner and not require additional external dependencies on compile time, NVIDIA CUDA available as external CUDA plugin, for convenient, 3 in 1 downloads with recent CUDA version also provided.

This release based on 4.x.x series and include all features from v4.6.2-beta, changelog below include only the most important changes, full changelog available separately.

  • Optimized hashrate calculation.
  • Added new option dataset_host for NVIDIA GPUs with less than 4 GB memory (RandomX only).
  • Added support for self-select stratum protocol extension.
  • Added new algorithm rx/arq, RandomX variant for upcoming ArQmA fork.
  • Added experimental support for persistent memory for CPU mining threads.
  • Improved RandomX dataset memory usage and initialization speed for NUMA machines.
  • Fixed support for systems where total count of NUMA nodes not equal usable nodes count.
  • Added config option cpu/max-threads-hint and command line option --cpu-max-threads-hint.
  • Added JIT compiler for RandomX on ARMv8.
  • Improved API endpoint GET /2/backends and added support for this endpoint to workers.xmrig.info.
  • Added command line option --no-cpu to disable CPU backend.
  • Added OpenCL specific command line options: --opencl, --opencl-devices, --opencl-platform, --opencl-loader and --opencl-no-cache.
  • Added CUDA specific command line options: --cuda, --cuda-loader and --no-nvml.
  • Removed command line option --http-enabled, HTTP API enabled automatically if any other --http-* option provided.
  • Added OpenCL mining backend.
    • Added RandomX support for OpenCL, thanks @SChernykh.
  • Algorithm cn/wow removed, as no longer alive.

XMRig setup

The preferred way to configure the miner is the JSON configuration file, as it is more flexible and user-friendly. The command line interface does not cover all functions, such as mining profiles for various algorithms. Important parameters can be changed at runtime without rebooting the miner by editing the configuration file or making API calls.

An example of a batch file for processors:

xmrig -a randomx -o pool.supportxmr.com:5555 -u 44tLjmXrQNrWJ5NBsEj2R77ZBEgDa3fEe9GLpSf2FRmhexPvfYDUAB7EXX1Hdb3aMQ9FLqdJ56yaAhiXoRsceGJCRS3Jxkn.5d3c802ee0f8e12e4eb9792722b7816a42178aa29ef7477c138ddb940c55648d.rig1 -p x --donate-level=1
goto start

Example batch file for AMD:

xmrig -a randomx -o pool.supportxmr.com:5555 -u 44tLjmXrQNrWJ5NBsEj2R77ZBEgDa3fEe9GLpSf2FRmhexPvfYDUAB7EXX1Hdb3aMQ9FLqdJ56yaAhiXoRsceGJCRS3Jxkn.5d3c802ee0f8e12e4eb9792722b7816a42178aa29ef7477c138ddb940c55648d.rig1 -p x --donate-level=1 --opencl
goto start

An example of a batch file for Nvidia:

xmrig -a randomx -o pool.supportxmr.com:5555 -u 44tLjmXrQNrWJ5NBsEj2R77ZBEgDa3fEe9GLpSf2FRmhexPvfYDUAB7EXX1Hdb3aMQ9FLqdJ56yaAhiXoRsceGJCRS3Jxkn.5d3c802ee0f8e12e4eb9792722b7816a42178aa29ef7477c138ddb940c55648d.rig1 -p x --donate-level=1 --cuda
goto start

Command line options

  -o, --url=URL                 URL of mining server
  -a, --algo=ALGO               mining algorithm https://xmrig.com/docs/algorithms
      --coin=COIN               specify coin instead of algorithm
  -u, --user=USERNAME           username for mining server
  -p, --pass=PASSWORD           password for mining server
  -O, --userpass=U:P            username:password pair for mining server
  -k, --keepalive               send keepalived packet for prevent timeout (needs pool support)
      --nicehash                enable nicehash.com support
      --rig-id=ID               rig identifier for pool-side statistics (needs pool support)
      --tls                     enable SSL/TLS support (needs pool support)
      --tls-fingerprint=HEX     pool TLS certificate fingerprint for strict certificate pinning
      --daemon                  use daemon RPC instead of pool for solo mining
      --daemon-poll-interval=N  daemon poll interval in milliseconds (default: 1000)
  -r, --retries=N               number of times to retry before switch to backup server (default: 5)
  -R, --retry-pause=N           time to pause between retries (default: 5)
      --user-agent              set custom user-agent string for pool
      --donate-level=N          donate level, default 5%% (5 minutes in 100 minutes)
      --donate-over-proxy=N     control donate over xmrig-proxy feature

CPU backend:
      --no-cpu                  disable CPU mining backend
  -t, --threads=N               number of CPU threads
  -v, --av=N                    algorithm variation, 0 auto select
      --cpu-affinity            set process affinity to CPU core(s), mask 0x3 for cores 0 and 1
      --cpu-priority            set process priority (0 idle, 2 normal to 5 highest)
      --cpu-max-threads-hint=N  maximum CPU threads count (in percentage) hint for autoconfig
      --cpu-memory-pool=N       number of 2 MB pages for persistent memory pool, -1 (auto), 0 (disable)
      --no-huge-pages           disable huge pages support
      --asm=ASM                 ASM optimizations, possible values: auto, none, intel, ryzen, bulldozer
      --randomx-init=N          threads count to initialize RandomX dataset
      --randomx-no-numa         disable NUMA support for RandomX

      --api-worker-id=ID        custom worker-id for API
      --api-id=ID               custom instance ID for API
      --http-host=HOST          bind host for HTTP API (default:
      --http-port=N             bind port for HTTP API
      --http-access-token=T     access token for HTTP API
      --http-no-restricted      enable full remote access to HTTP API (only if access token set)

OpenCL backend:
      --opencl                  enable OpenCL mining backend
      --opencl-devices=N        comma separated list of OpenCL devices to use
      --opencl-platform=N       OpenCL platform index or name
      --opencl-loader=PATH      path to OpenCL-ICD-Loader (OpenCL.dll or libOpenCL.so)
      --opencl-no-cache         disable OpenCL cache
      --print-platforms         print available OpenCL platforms and exit

CUDA backend:
      --cuda                    enable CUDA mining backend
      --cuda-loader=PATH        path to CUDA plugin (xmrig-cuda.dll or libxmrig-cuda.so)
      --cuda-devices=N          comma separated list of CUDA devices to use
      --cuda-bfactor-hint=N     bfactor hint for autoconfig (0-12)
      --cuda-bsleep-hint=N      bsleep hint for autoconfig
      --no-nvml                 disable NVML (NVIDIA Management Library) support

  -S, --syslog                  use system log for output messages
  -l, --log-file=FILE           log all output to a file
      --print-time=N            print hashrate report every N seconds
      --health-print-time=N     print health report every N seconds
      --no-color                disable colored output

  -c, --config=FILE             load a JSON-format configuration file
  -B, --background              run the miner in the background
  -V, --version                 output version information and exit
  -h, --help                    display this help and exit
      --dry-run                 test configuration and exit
      --export-topology         export hwloc topology to a XML file and exit

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