[IGNITE-21378] Investigate whether it's possible to make txnState local map updates faster

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Labels: PERFORMANCE Performance ignite-3 ignite3_performance performance performence
• Epic Link: performance enhancement
• Assignee: Vladislav Pyatkov
• Reporter: Alexander Lapin
• Reviewer: Denis Chudov
• Created: 29/Jan/24 14:18
• Updated: 14/Feb/24 08:03
• Resolved: 14/Feb/24 08:03

Description

 Motivation

IGNITE-21375 is about removing txnState local map updates within RO txn flow because it brings us 20% performance drop. For RW transactions, it's however not possible, because such updates are required by the RW protocol. Thus, it seems reasonable to verify whether proposed VolatileTxStateMetaStorage is itself fast enough.

Definition of Done

• Increase VolatileTxStateMetaStorag performance if it's possible.

Issue Links

• depends upon: IGNITE-21379 Investigate whether currently used busyLocks implementation is fast enough
• relates to: IGNITE-21375 RO transactions should not update txnState local map
• links to: GitHub Pull Request #3204