Solana just boosted block capacity by a massive 66%, but the one bottleneck infuriating traders hasn’t budged
Solana raised the most computation allowed per block from 60 million to 100 million compute models on July 29, a 66.7% leap that offers unrelated transactions extra room with out altering the separate cap governing its busiest accounts.
Compute models, or CUs, measure computational work carried out by transactions. The block restrict caps the combination CUs a chief can embody earlier than the block is full.
The on-chain feature account identifies SIMD-0286 as lively at slot 435,888,000, at the begin of epoch 1009, whereas the activation block timestamps that slot to July 29. The change raised the block restrict by 66.7% mathematically, which the Solana Foundation presents as 66%.
The Solana Foundation said 11.2% of blocks produced between the July 22, 2025 activation of the 60 million-CU restrict and the newest improve used at the least 56 million CUs.
Why a scorching account can nonetheless hit its cap
SIMD-0286 modified solely the total block restrict. The most compute that may write to any single account inside a block stays 12 million CUs, whereas the most block accounts-data measurement delta stays 100MB. In this context, a scorching account is shared writable state that many transactions attempt to replace, not essentially one dealer’s pockets.
That creates extra parallel capacity. Transactions touching unrelated accounts can use the extra 40 million CUs, permitting a busy account to crowd out much less of the remainder of the block. Under the former ceiling, one account’s 12 million-CU allowance represented 20% of the block. It now represents 12%.
The similar math doesn’t give a congested market extra capacity. If many trades want to jot down to the similar account, they nonetheless compete inside the 12 million-CU allowance. A state-heavy workload can even encounter the separate 100MB data-delta restrict even when block compute stays accessible.
That distinction carries via to charges. Solana’s fee documentation says an elective prioritization charge is determined by a transaction’s requested CU restrict and CU value and raises its chance of being scheduled. The increased block ceiling alone doesn’t present that precedence charges fell for transactions concentrating on the similar scorching state.
More capacity additionally doesn’t equal measured efficiency. The technical proposal warns that bigger blocks can take longer to execute, gradual community progress and validator catch-up, and will trigger unexpected points for infrastructure past validators. Those are design dangers, not stories of a present incident.
One Aug. 2 block recorded 25,373,012 consumed CUs, 1,328 processed transactions, and 1,069 profitable transactions. One block can not set up network-wide outcomes or a before-and-after change.
The official improve supplies supply no post-activation before-and-after measurements for transaction inclusion, charges, block propagation, or replay. The improve subsequently establishes a increased theoretical ceiling for combination work. It doesn’t, by itself, exhibit 66% extra noticed throughput or get rid of the native bottleneck that traders encounter when demand converges on the similar account.
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