Adding #[inline] for StoreCheckpoint methods #1946
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🧹 Nitpick comments (2)
rocketmq-store/src/base/store_checkpoint.rs (2)
42-42: Consider potential downsides of inlining a larger initialization function.
newcreates and initializes multiple resources such as files and memory maps. The#[inline]hint may not provide meaningful performance benefits for larger, I/O-bound operations, as inlining typically helps with small, frequently called methods.
188-188: Use named constant for magic number.Subtracting
3000can be more readable if defined as a named constant, e.g.,CHECKPOINT_OFFSETor similar, enhancing clarity about its purpose.
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rocketmq-store/src/base/store_checkpoint.rs(4 hunks)
🔇 Additional comments (13)
rocketmq-store/src/base/store_checkpoint.rs (13)
91-91: Inlining an I/O-heavy function likely has minimal performance gains.
Although #[inline] suggests an optimization, flush is mostly I/O-bound and unlikely to benefit significantly from inlining. If performance is a concern, confirm the frequency of calls before deciding to keep the attribute.
128-128: Small, single-call method is appropriate for inlining.
shutdown simply calls flush. This short method may indeed benefit from #[inline]. No issues found.
133-133: Verify atomic ordering choice for concurrency.
Using Ordering::Relaxed for set_physic_msg_timestamp allows concurrent writes with minimal synchronization. Confirm that no stronger ordering (e.g., Release) is needed to ensure visibility by other threads.
139-139: Confirm relaxed ordering requirements.
The set_logics_msg_timestamp method also uses Ordering::Relaxed. Verify this is sufficient for the intended concurrency model.
145-145: Confirm consistency for index timestamp writes.
set_index_msg_timestamp uses the same Ordering::Relaxed. Ensure it aligns with other timestamp writes and concurrency assumptions.
151-151: Double-check ordering for master flushed offset.
set_master_flushed_offset uses Ordering::Relaxed. Validate whether the logic that depends on this offset requires stronger memory ordering.
157-157: Assess concurrency model for confirm physical offset.
set_confirm_phy_offset also stores with Ordering::Relaxed. Confirm that no cross-thread synchronization constraints demand a stronger ordering.
163-163: Ensure relaxed load is appropriate for concurrency.
physic_msg_timestamp() loads with Ordering::Relaxed. Verify if there's a scenario needing consistency with other fields that might require Acquire ordering.
168-168: Double-check concurrency for logics timestamp loads.
logics_msg_timestamp() uses a relaxed load. Confirm that the usage patterns do not require stronger memory ordering.
173-173: Confirm correct load ordering for index timestamp.
index_msg_timestamp() also loads relaxedly. Ensure that’s consistent with the logic that processes this value concurrently.
178-178: Master flushed offset load concurrency check.
master_flushed_offset() uses relaxed order. Confirm no read-after-write synchronization is required.
183-183: Confirm physical offset load ordering.
confirm_phy_offset() loads with Ordering::Relaxed. Confirm that is sufficient for any concurrency requirements.
198-198: No issues. Inline is suitable for this short, index-based function.
The method get_min_timestamp_index is concise and uses relaxed loads. Verify concurrency model if the computed value must remain consistent with the underlying data updates.
Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## main #1946 +/- ##
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Coverage 28.45% 28.45%
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Files 486 486
Lines 68034 68034
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Hits 19362 19362
Misses 48672 48672 ☔ View full report in Codecov by Sentry. |
Which Issue(s) This PR Fixes(Closes)
Add #[inline] for StoreCheckpoint methods
Fixes #1945
Summary by CodeRabbit