Replace public keys with those compressed

[s8sato]

I don’t ask for crypto. M◉⃤|<𓊖༒𓊖 Takemiya 武宮誠 (Sora.org & SORAMITSU), [2025/01/08 19:58]
How many bytes used per account stored in memory in wsv?

S. Sato, [2025/01/09 0:20]
Approximately 2.2GiB resident memory difference is observed for 2^20 (1Mi) account-asset pairs, which means 2200~2300B for a pair. Code (s8sato@17bfacd)

Assumptions:

• No difference except in the world state: compared in the initial state of 0 blocks
• Every account accompanies one asset

I might investigate further to be more precise

S. Sato, [2025/01/09 0:47]
We might have to store multihash instead of PublicKey as well as to dedup ids

I don’t ask for crypto. M◉⃤|<𓊖༒𓊖 Takemiya 武宮誠 (Sora.org & SORAMITSU), [2025/01/09 1:12]
Do we store compressed public keys?

S. Sato, [2025/01/09 1:28]
I guess no, it consumes 8+296 bytes while e.g. ed25519 multihash is essentially 32 bytes

I don’t ask for crypto. M◉⃤|<𓊖༒𓊖 Takemiya 武宮誠 (Sora.org & SORAMITSU), [2025/01/09 14:18]
We can compress the public key I guess as we just need a bit showing if y is even or odd and not the whole y coord

[s8sato]

In addition to PublicKey size and duplicate IDs between keys and values, it would be a major factor in memory usage that mv::storage::Storage.revert holds a snapshot to handle soft forks