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https://issues.apache.org/jira/browse/LOG4J2-1395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15307392#comment-15307392
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Mikael Ståldal commented on LOG4J2-1395:
----------------------------------------
My results with Java 8 on Linux.
1 thread:
{noformat}
Benchmark Mode
Samples Score Error Units
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderConsole thrpt
20 118539.504 ± 48125.941 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderDirectConsole thrpt
20 706424.023 ± 85239.631 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderFile thrpt
20 2185534.038 ± 65757.292 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderNoop thrpt
20 167398601.862 ± 2962628.545 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.baseline thrpt
20 3182532740.147 ± 55823667.551 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endConsole thrpt
20 128843.134 ± 40653.812 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endDirectConsole thrpt
20 479322.595 ± 67940.070 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endFile thrpt
20 1291218.480 ± 41087.952 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endNoop thrpt
20 7480835.001 ± 151246.371 ops/s
{noformat}
4 threads:
{noformat}
Benchmark Mode
Samples Score Error Units
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderConsole thrpt
20 142062.223 ± 33645.147 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderDirectConsole thrpt
20 568788.797 ± 34301.743 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderFile thrpt
20 2266759.510 ± 134345.483 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderNoop thrpt
20 30894859.663 ± 1622055.444 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.baseline thrpt
20 5735451312.190 ± 199741828.825 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endConsole thrpt
20 125171.488 ± 27947.614 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endDirectConsole thrpt
20 441571.591 ± 20214.591 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endFile thrpt
20 1250755.302 ± 27639.243 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endNoop thrpt
20 11799456.705 ± 147228.429 ops/s
{noformat}
(I disabled some non-relevant tests.)
> Faster Console appender
> -----------------------
>
> Key: LOG4J2-1395
> URL: https://issues.apache.org/jira/browse/LOG4J2-1395
> Project: Log4j 2
> Issue Type: Improvement
> Components: Appenders
> Affects Versions: 2.5, 2.6
> Reporter: Mikael Ståldal
> Attachments: ggregory-hardware.txt
>
>
> The ConsoleAppender is much slower than the FileAppender.
> It would be nice to improve the performance of the ConsoleAppender.
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