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Amit Jain updated OAK-4837: --------------------------- Attachment: FileWriteBenchmark.png FileReadBenchmark.png SmallFileWriteTest/SmallFileReadTest for different file sizes (50 KB, 250 KB, 1 MB, 5 MB) with different implementation: * FileDataStore * JR2 S3 (Using JR2 CachingDataStore) * S3 (Using the new AbstractSharedCachingDataStore) There is a small improvement in the writes ~13-15% but tapers of as File size increases. !FileWriteBenchmark.png! The read performance is approximately same for all the 3 DataStores using default caching parameters. !FileReadBenchmark.png! > Improved caching for DataStore > ------------------------------ > > Key: OAK-4837 > URL: https://issues.apache.org/jira/browse/OAK-4837 > Project: Jackrabbit Oak > Issue Type: Improvement > Components: blob > Reporter: Amit Jain > Assignee: Amit Jain > Labels: performance > Attachments: FileReadBenchmark.png, FileWriteBenchmark.png > > > The current CachingDataStore implementation used with S3DataStore has certain > problems: > * Lack of stats to show hit rate/miss rates for files being requested for > downloads > * Lack of stats for async uploads > * CachingDataStore starts proactively downloading files in the background > when a call to {{getRecord}} is made. > * Async upload functionality leaks into Backend implementations, LocalCache > classes. > * The call to {{DataStore#getRecord()}} which makes multiple calls to > backends which is problematic for S3 (i.e. when not being served bu cache) > * There is some functionality which is not used with Oak like length cache, > sync/async touch etc. which can be removed and code simplified. -- This message was sent by Atlassian JIRA (v6.3.4#6332)