* Split out voting and banking threads in banking stage
Additionally this allows us to aggressively prune the buffer for voting threads
as with the new vote state only the latest vote from each validator is
necessary.
* Update local cluster test to use new Vote ix
* Encapsulate transaction storage filtering better
* Address pr comments
* Commit cargo lock change
* clippy
* Remove unsafe impls
* pr comments
* compute_sanitized_transaction -> build_sanitized_transaction
* &Arc -> Arc
* Move test
* Refactor metrics enums
* clippy
- Batch filtering invalid transactions (fail to sanitize, too old or already processed) before forwarding
- Combine packet filtering and forwarding to share sanitized transactions
- `iter_desc` is no longer needed, remove it;
- Add a method to share the logic of removing packets from buffer after they were removed from MinMaxHeap
- Add test coverage for forward_packet_batches_by_accounts
- rebase, resolve conflicts
Separate storage for voting and transaction threads:
- Voting threads utilize a shared reference in order to dedup extraneous
votes
- Transactions have thread local storage like before
- Forward packets by prioritization in desc order
- Add support of cost-tracking by transaction requested compute units
- Hook up account buckets to forwarder
- Add metrics for forwardable batches count
- Remove redundant invalid packets filtering at end of slot since forwarder will do the same when batch forwardable packets
- Add bench test for forwarding
Packets are at the boundary of the system where, vast majority of the
time, they are received from an untrusted source. Raw indexing into the
data buffer can open attack vectors if the offsets are invalid.
Validating offsets beforehand is verbose and error prone.
The commit updates Packet::data() api to take a SliceIndex and always to
return an Option. The call-sites are so forced to explicitly handle the
case where the offsets are invalid.
Bytes past Packet.meta.size are not valid to read from.
The commit makes the buffer field private and instead provides two
methods:
* Packet::data() which returns an immutable reference to the underlying
buffer up to Packet.meta.size. The rest of the buffer is not valid to
read from.
* Packet::buffer_mut() which returns a mutable reference to the entirety
of the underlying buffer to write into. The caller is responsible to
update Packet.meta.size after writing to the buffer.
Upcoming changes to PacketBatch to support variable sized packets will
modify the internals of PacketBatch. So, this change removes usage of
the internal packet struct and instead uses accessors (which are
currently just wrappers of Vector functions but will change down the
road).
* - get prioritization fee from compute_budget instruction;
- update compute_budget::process_instruction function to take instruction iter to support sanitized versioned message;
- updated runtime.md
* update transaction fee calculation for prioritization fee rate as lamports per 10K CUs
* review changes
* fix test
* fix a bpf test
* fix bpf test
* patch feedback
* fix clippy
* fix bpf test
* feedback
* rename prioritization fee rate to compute unit price
* feedback
Co-authored-by: Justin Starry <justin@solana.com>
Benchmarks show roughly a 6% improvement. The impact could be more
significant when transactions need to be retried a lot.
after patch:
{'name': 'banking_bench_total', 'median': '72767.43'}
{'name': 'banking_bench_tx_total', 'median': '80240.38'}
{'name': 'banking_bench_success_tx_total', 'median': '72767.43'}
test bench_banking_stage_multi_accounts
... bench: 6,137,264 ns/iter (+/- 1,364,111)
test bench_banking_stage_multi_programs
... bench: 10,086,435 ns/iter (+/- 2,921,440)
before patch:
{'name': 'banking_bench_total', 'median': '68572.26'}
{'name': 'banking_bench_tx_total', 'median': '75704.75'}
{'name': 'banking_bench_success_tx_total', 'median': '68572.26'}
test bench_banking_stage_multi_accounts
... bench: 6,521,007 ns/iter (+/- 1,926,741)
test bench_banking_stage_multi_programs
... bench: 10,526,433 ns/iter (+/- 2,736,530)
Brooks Prumo
Ashwin Sekar
Tao Zhu
apfitzge
behzad nouri
apfitzge
Jack May
carllin
Justin Starry
steviez
Christian Kamm
Tao Zhu