Configuring Scavenger
Scavenger can be configured via the config.yaml config file. The following sane defaults can be used as a baseline for future fine tuning:
Info
When using Foxy-Miner in managed mode (isManaged) please configure the corresponding values in the foxy-miner.yaml instead.
General:
hdd_reader_thread_count: 0
hdd_use_direct_io: true
get_mining_info_interval: 500 # When mining to a local proxy or foxy-miner use a low value like 500
send_proxy_details: true
When CPU mining:
cpu_threads: 0
cpu_worker_task_count: n # the number of drives configured
When mining with a dedicated GPU:
gpu_threads: 2
gpu_worker_task_count: n # the number of drives configured
gpu_nonces_per_cache: 110592 # Or the default 262144 depending on the GPU
gpu_mem_mapping: false
gpu_async: true
When mining with a integrated GPU:
gpu_threads: 1 # Or 2 if the iGPU is more powerful
gpu_worker_task_count: n # the number of drives configured
gpu_nonces_per_cache: 110592 # Or the default 262144 depending on the GPU
gpu_mem_mapping: true
gpu_async: false
Fine-tuning¶
For fine-tuning please use the benchmark functionality of scavenger via
benchmark_only: XPU
cpu_threads / gpu_threads and gpu_nonces_per_cache sizes depending on if you are CPU or GPU mining and observe the results to maximize speeds. Use scavenger -o to print the opencl device list and the ideal_nonce_cache_multiplier for each opencl device to calculate the optimal gpu_nonces_per_cache:
19:53:39 [INFO] OCL: platform 1, AMD Accelerated Parallel Processing - OpenCL 2.1 AMD-APP (2671.3)
19:53:39 [INFO] OCL: device 0, Advanced Micro Devices, Inc. - Tahiti
19:53:40 [INFO] OCL: cores=32,kernel_1_workgroupsize=256, kernel_2_workgroupsize=256
19:53:40 [INFO] OCL: ideal_nonce_cache_multiplier=8192
The gpu_nonces_per_cache should be a multiple of the ideal_nonce_cache_multiplier of the GPU used for scanning.
Furthermore you can use
benchmark_only: I/O