Module block_cost_limits

defines block cost related limits

Structs

• BUILT_IN_INSTRUCTION_COSTS
  Number of compute units for each built-in programs

Constants

• COMPUTE_UNIT_TO_US_RATIO
  Cluster averaged compute unit to micro-sec conversion rate
• DATA_BYTES_UNITS
  Number of data bytes per compute units
• MAX_ACCOUNT_DATA_BLOCK_LEN
  max length of account data in a block (bytes)
• MAX_BLOCK_REPLAY_TIME_US
  Static configurations:
• MAX_BLOCK_UNITS
  Statically computed data:
• MAX_CONCURRENCY
  number of concurrent processes,
• MAX_VOTE_UNITS
  Number of compute units that a block can have for vote transactions, sets at ~75% of MAX_BLOCK_UNITS to leave room for non-vote transactions
• MAX_WRITABLE_ACCOUNT_UNITS
  Number of compute units that a writable account in a block is allowed. The limit is to prevent too many transactions write to same account, therefore reduce block’s parallelism.
• SIGNATURE_COST
  Number of compute units for one signature verification.
• WRITE_LOCK_UNITS
  Number of compute units for one write lock