135 lines
5.3 KiB
Rust
135 lines
5.3 KiB
Rust
//! Compute Units based on median request latencies and sizes.
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//! Designed to match Alchemy's system.
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//! I'm sure there will be memes about us copying, but the user experience of consistency makes a lot of sense to me.
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//! TODO? pricing based on latency and bytes and
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//! TODO: rate limit on compute units
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//! TODO: pricing on compute units
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//! TODO: script that queries influx and calculates observed relative costs
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use log::warn;
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use migration::sea_orm::prelude::Decimal;
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pub struct ComputeUnit(Decimal);
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impl ComputeUnit {
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/// costs can vary widely depending on method and chain
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pub fn new(method: &str, chain_id: u64) -> Self {
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let cu = match (chain_id, method) {
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(_, "debug_traceTransaction") => 309,
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(_, "debug_traceCall") => 309,
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(_, "debug_traceBlockByHash") => 497,
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(_, "debug_traceBlockByNumber") => 497,
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(_, "trace_get") => 17,
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(_, "trace_block") => 24,
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(_, "trace_transaction") => 26,
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(_, "trace_call") => 75,
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(_, "trace_rawTransaction") => 75,
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(_, "trace_filter") => 75,
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(_, "trace_replayTransaction") => 2983,
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(_, "trace_replayBlockTransactions") => 2983,
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(_, "net_version") => 0,
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(_, "eth_chainId") => 0,
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(_, "eth_syncing") => 0,
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(_, "eth_protocolVersion") => 0,
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(_, "net_listening") => 0,
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(_, "eth_uninstallFilter") => 10,
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(_, "eth_accounts") => 10,
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(_, "eth_blockNumber") => 10,
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(_, "eth_subscribe") => 10,
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(_, "eth_unsubscribe") => 10,
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(_, "eth_feeHistory") => 10,
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(_, "eth_maxPriorityFeePerGas") => 10,
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(_, "eth_createAccessList") => 10,
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(_, "eth_getTransactionReceipt") => 15,
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(_, "eth_getUncleByBlockHashAndIndex") => 15,
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(_, "eth_getUncleByBlockNumberAndIndex") => 15,
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(_, "eth_getTransactionByBlockHashAndIndex") => 15,
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(_, "eth_getTransactionByBlockNumberAndIndex") => 15,
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(_, "eth_getUncleCountByBlockHash") => 15,
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(_, "eth_getUncleCountByBlockNumber") => 15,
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(_, "web3_clientVersion") => 15,
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(_, "web3_sha3") => 15,
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(_, "eth_getBlockByNumber") => 16,
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(_, "eth_getStorageAt") => 17,
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(_, "eth_getTransactionByHash") => 17,
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(_, "eth_gasPrice") => 19,
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(_, "eth_getBalance") => 19,
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(_, "eth_getCode") => 19,
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(_, "eth_getFilterChanges") => 20,
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(_, "eth_newBlockFilter") => 20,
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(_, "eth_newFilter") => 20,
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(_, "eth_newPendingTransactionFilter") => 20,
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(_, "eth_getBlockTransactionCountByHash") => 20,
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(_, "eth_getBlockTransactionCountByNumber") => 20,
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(_, "eth_getProof") => 21,
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(_, "eth_getBlockByHash") => 21,
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(_, "erigon_forks") => 24,
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(_, "erigon_getHeaderByHash") => 24,
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(_, "erigon_getHeaderByNumber") => 24,
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(_, "erigon_getLogsByHash") => 24,
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(_, "erigon_issuance") => 24,
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(_, "eth_getTransactionCount") => 26,
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(_, "eth_call") => 26,
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(_, "eth_getFilterLogs") => 75,
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(_, "eth_getLogs") => 75,
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(_, "eth_estimateGas") => 87,
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(_, "eth_sendRawTransaction") => 250,
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(_, "eth_getBlockReceipts") => 500,
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(137, "bor_getAuthor") => 10,
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(137, "bor_getCurrentProposer") => 10,
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(137, "bor_getCurrentValidators") => 10,
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(137, "bor_getRootHash") => 10,
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(137, "bor_getSignersAtHash") => 10,
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(1101, "zkevm_batchNumber") => 0,
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(1101, "zkevm_batchNumberByBlockNumber") => 0,
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(1101, "zkevm_consolidatedBlockNumber") => 0,
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(1101, "zkevm_getBatchByNumber") => 0,
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(1101, "zkevm_getBroadcastURI") => 0,
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(1101, "zkevm_isBlockConsolidated") => 0,
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(1101, "zkevm_isBlockVirtualized") => 0,
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(1101, "zkevm_verifiedBatchNumber") => 0,
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(1101, "zkevm_virtualBatchNumber") => 0,
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(_, "eth_sendUserOperation") => 1000,
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(_, "eth_estimateUserOperationGas") => 500,
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(_, "eth_getUserOperationByHash") => 17,
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(_, "eth_getUserOperationReceipt") => 15,
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(_, "eth_supportedEntryPoints") => 5,
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(_, method) => {
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// default to 10 CU for methods that aren't included here
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warn!("unknown method {}", method);
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10
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}
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};
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let cu = Decimal::from(cu);
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Self(cu)
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}
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/// notifications and subscription responses cost per-byte
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pub fn subscription_response<D: Into<Decimal>>(num_bytes: D) -> Self {
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let cu = num_bytes.into() * Decimal::new(4, 2);
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Self(cu)
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}
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/// requesting an unimplemented function costs 2 CU
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pub fn unimplemented() -> Self {
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Self(2.into())
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}
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/// Compute cost per request
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/// All methods cost the same
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/// The number of bytes are based on input, and output bytes
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pub fn cost(&self, cache_hit: bool, usd_per_cu: Decimal) -> Decimal {
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let mut cost = self.0 * usd_per_cu;
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// cache hits get a 50% discount
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if cache_hit {
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cost /= Decimal::from(2)
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}
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cost
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}
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}
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