Remove LinkedDeque and replace with LinkedHashMap #6968
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After the recent changes the usage of the LinkedDeque fits quite well with the insertion order semantics of LinkedHashMap, which also allows for constant time additions and removals. Signed-off-by: Andrew Ross <[email protected]>
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Gradle Check (Jenkins) Run Completed with:
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Codecov Report
📣 This organization is not using Codecov’s GitHub App Integration. We recommend you install it so Codecov can continue to function properly for your repositories. Learn more @@ Coverage Diff @@
## main #6968 +/- ##
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- Coverage 70.66% 70.57% -0.10%
+ Complexity 59231 59071 -160
============================================
Files 4812 4812
Lines 283761 283617 -144
Branches 40917 40909 -8
============================================
- Hits 200519 200153 -366
- Misses 66784 67033 +249
+ Partials 16458 16431 -27
... and 472 files with indirect coverage changes Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here. |
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@andrross I like it, the implementation is much simpler now, interestingly enough, the |
reta
reviewed
Apr 4, 2023
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| private final RemovalListener<K, V> listener; | ||
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| private final Weigher<V> weigher; | ||
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| private final StatsCounter<K> statsCounter; | ||
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| private volatile ReentrantLock lock; | ||
| private final ReentrantLock lock; |
There was a problem hiding this comment.
👍 we could replace
final ReentrantLock lock = this.lock;
lock.lock();
with just
lock.lock();
now
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Oh good catch! I'm sure there was some previous incarnation of this code where a volatile lock was needed, but it definitely was never necessary here.
reta
approved these changes
Apr 4, 2023
Signed-off-by: Andrew Ross <[email protected]>
Gradle Check (Jenkins) Run Completed with:
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@reta regarding |
Gradle Check (Jenkins) Run Completed with:
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Gradle Check (Jenkins) Run Completed with:
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mitrofmep
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Apr 5, 2023
…#6968) * Remove LinkedDeque and replace with LinkedHashMap After the recent changes the usage of the LinkedDeque fits quite well with the insertion order semantics of LinkedHashMap, which also allows for constant time additions and removals. Signed-off-by: Andrew Ross <[email protected]> * Use class member reference now that lock is final Signed-off-by: Andrew Ross <[email protected]> --------- Signed-off-by: Andrew Ross <[email protected]> Signed-off-by: Valentin Mitrofanov <[email protected]>
kotwanikunal
pushed a commit
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that referenced
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May 17, 2023
…#6968) * Remove LinkedDeque and replace with LinkedHashMap After the recent changes the usage of the LinkedDeque fits quite well with the insertion order semantics of LinkedHashMap, which also allows for constant time additions and removals. Signed-off-by: Andrew Ross <[email protected]> * Use class member reference now that lock is final Signed-off-by: Andrew Ross <[email protected]> --------- Signed-off-by: Andrew Ross <[email protected]> (cherry picked from commit 65443ad)
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reta
pushed a commit
that referenced
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May 17, 2023
… filecache support in clear indices cache API (#7595) * Remove LinkedDeque and replace with LinkedHashMap (#6968) * Remove LinkedDeque and replace with LinkedHashMap After the recent changes the usage of the LinkedDeque fits quite well with the insertion order semantics of LinkedHashMap, which also allows for constant time additions and removals. Signed-off-by: Andrew Ross <[email protected]> * Use class member reference now that lock is final Signed-off-by: Andrew Ross <[email protected]> --------- Signed-off-by: Andrew Ross <[email protected]> (cherry picked from commit 65443ad) * Add filecache support in clear indices cache API (#7498) Signed-off-by: Kunal Kotwani <[email protected]> (cherry picked from commit a1e42b1) Signed-off-by: Kunal Kotwani <[email protected]> --------- Signed-off-by: Kunal Kotwani <[email protected]> Co-authored-by: Andrew Ross <[email protected]>
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Looks like #7595 includes this? @kotwanikunal |
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After the recent changes the usage of the LinkedDeque fits quite well with the insertion order semantics of LinkedHashMap, which also allows for constant time additions and removals.
Microbenchmark Results
The benchmark results are quite similar. The LinkedHashMap version seems to be slightly faster, but they are close enough there could be other variables in the test runs causing the difference. The benchmarks show there isn't any significant regression.
OS: Ubuntu 20.04.5 LTS
Host: AWS EC2 c6i.8xlarge
Benchmark command:
./gradlew -p benchmarks run --args 'FileCacheBenchmark'This PR:
Previous implementation:
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