Skip to content

Add KawPow specs to tunables table #62

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
RecRanger wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Add KawPow specs to tunables table #62

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
30 changes: 15 additions & 15 deletions README.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -146,21 +146,21 @@ ProgPoW can be tuned using the following parameters. The proposed settings have
The value of these parameters has been tweaked between version 0.9.2 (live on the Gangnam testnet) and 0.9.3 (proposed for [Ethereum adoption](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-1057.md)). See [this medium post](https://medium.com/@ifdefelse/progpow-progress-da5bb31a651b) for details.
Release 0.9.4 keeps the same tunables of 0.9.3 and includes the tweak for DAG generation.

| Parameter | 0.9.2 | 0.9.3 | 0.9.4 |
|-----------------------|-------|-------|-------|
| `PROGPOW_PERIOD` | `50` | `10` | `10` |
| `PROGPOW_LANES` | `16` | `16` | `16` |
| `PROGPOW_REGS` | `32` | `32` | `32` |
| `PROGPOW_DAG_LOADS` | `4` | `4` | `4` |
| `PROGPOW_CACHE_BYTES` | `16x1024` | `16x1024` | `16x1024` |
| `PROGPOW_CNT_DAG` | `64` | `64` | `64` |
| `PROGPOW_CNT_CACHE` | `12` | `11` | `11` |
| `PROGPOW_CNT_MATH` | `20` | `18` | `18` |

| DAG Parameter | 0.9.2 | 0.9.3 | 0.9.4 |
|--------------------------|-------|-------|-------|
| `ETHASH_DATASET_PARENTS` | `256` | `256` | `512` |

| Parameter | 0.9.2 | 0.9.3 | 0.9.4 | 0.9.4 (KawPow) |
|-----------------------|-------|-------|-------|----------------|
| `PROGPOW_PERIOD` | `50` | `10` | `10` | `3` |
| `PROGPOW_LANES` | `16` | `16` | `16` | `16` |
| `PROGPOW_REGS` | `32` | `32` | `32` | `32` |
| `PROGPOW_DAG_LOADS` | `4` | `4` | `4` | `4` |
| `PROGPOW_CACHE_BYTES` | `16x1024` | `16x1024` | `16x1024` | `16x1024` |
| `PROGPOW_CNT_DAG` | `64` | `64` | `64` | `64` |
| `PROGPOW_CNT_CACHE` | `12` | `11` | `11` | `11` |
| `PROGPOW_CNT_MATH` | `20` | `18` | `18` | `18` |

| DAG Parameter | 0.9.2 | 0.9.3 | 0.9.4 | 0.9.4 (KawPow) |
|--------------------------|-------|-------|-------|----------------|
| `ETHASH_DATASET_PARENTS` | `256` | `256` | `512` | `512` |
| `ETHASH_EPOCH_LENGTH` | `30000` | `30000` | `30000` | `7500` |

The random program changes every `PROGPOW_PERIOD` blocks (default `10`, roughly 2 minutes) to ensure the hardware executing the algorithm is fully programmable. If the program only changed every DAG epoch (roughly 5 days) certain miners could have time to develop hand-optimized versions of the random sequence, giving them an undue advantage.

Expand Down