bharathv commented on pull request #3371: URL: https://github.com/apache/hbase/pull/3371#issuecomment-858883352
Caffeine seems to perform even worse overall (even though flame graph % is slightly lower), may be its some noise on my machine too. **With patch using Caffeine**   ``` -- Histograms ------------------------------------------------------------------ org.apache.hadoop.hbase.wal.WALPerformanceEvaluation.latencyHistogram.nanos count = 15726724 min = 3199736 max = 54760561 mean = 4271968.63 stddev = 3613748.22 median = 3942103.00 75% <= 4057762.00 95% <= 4403199.00 98% <= 4815190.00 99% <= 5449043.00 99.9% <= 49375530.00 org.apache.hadoop.hbase.wal.WALPerformanceEvaluation.syncCountHistogram.countPerSync count = 154233 min = 101 max = 103 mean = 102.00 stddev = 0.15 median = 102.00 75% <= 102.00 95% <= 102.00 98% <= 102.00 99% <= 103.00 99.9% <= 103.00 org.apache.hadoop.hbase.wal.WALPerformanceEvaluation.syncHistogram.nanos-between-syncs count = 154233 min = 120917 max = 47121051 mean = 1786963.74 stddev = 2953364.50 median = 1573054.00 75% <= 1624446.00 95% <= 1782991.00 98% <= 1933771.00 99% <= 2221343.00 99.9% <= 44809603.00 -- Meters ---------------------------------------------------------------------- org.apache.hadoop.hbase.wal.WALPerformanceEvaluation.appendMeter.bytes count = 8759954596 mean rate = 32330356.51 events/second 1-minute rate = 32550176.33 events/second 5-minute rate = 30821417.63 events/second 15-minute rate = 29564873.50 events/second org.apache.hadoop.hbase.wal.WALPerformanceEvaluation.syncMeter.syncs count = 154234 mean rate = 569.23 events/second 1-minute rate = 573.07 events/second 5-minute rate = 542.31 events/second 15-minute rate = 519.90 events/second ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
