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improves threads' utilization in processing gossip packets (#12962)

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ClusterInfo::process_packets handles incoming packets in a thread_pool:
https://github.com/solana-labs/solana/blob/87311cce7/core/src/cluster_info.rs#L2118-L2134

However, profiling runtime shows that threads are not well utilized and
a lot of the processing is done sequentially.

This commit redistributes the work done in parallel. Testing on a gce
cluster shows 20%+ improvement in processing gossip packets with much
smaller variations.
This commit is contained in:
behzad nouri
2020-10-19 19:03:38 +00:00
committed by GitHub
parent cca318f805
commit 75d62ca095
3 changed files with 174 additions and 114 deletions
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4
ledger/src/entry.rs
View File

@ -273,9 +273,9 @@ impl EntryVerificationState {
.zip(entries)
.all(|((hash, tx_hash), answer)| {
if answer.num_hashes == 0 {
*hash == answer.hash
hash == answer.hash
} else {
let mut poh = Poh::new(*hash, None);
let mut poh = Poh::new(hash, None);
if let Some(mixin) = tx_hash {
poh.record(*mixin).unwrap().hash == answer.hash
} else {