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https://issues.apache.org/jira/browse/LOG4J2-1395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15318190#comment-15318190
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Remko Popma commented on LOG4J2-1395:
-------------------------------------
*Linux 1 thread*
{code}
Benchmark Mode
Samples Score Error Units
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderConsole thrpt
20 147452.021 ± 33514.022 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderFile thrpt
20 2234577.235 ± 218498.789 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderMMap thrpt
20 2329409.003 ± 198796.157 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderNoop thrpt
20 149720377.842 ± 17804473.271 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderRAF thrpt
20 2063633.128 ± 247989.703 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderRewrite thrpt
20 19682771.308 ± 2075195.499 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.baseline thrpt
20 2741023752.188 ± 314323378.970 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endConsole thrpt
20 149909.599 ± 47015.584 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endDirectConsole thrpt
20 471146636.469 ± 33450500.357 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endFile thrpt
20 1377810.177 ± 128314.984 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endMMap thrpt
20 1222680.095 ± 277079.233 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endNoop thrpt
20 6511841.054 ± 743196.256 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endRAF thrpt
20 1399987.132 ± 127872.116 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endRewrite thrpt
20 2314119.725 ± 274703.905 ops/s
{code}
*Windows 1 thread*
{code}
Benchmark Mode
Samples Score Error Units
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderConsole thrpt
20 56832.983 ▒} 2802.240 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderDirectConsole thrpt
20 378385.134 ▒} 6631.688 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderFile thrpt
20 1129532.192 ▒} 23263.940 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderMMap thrpt
20 1276745.239 ▒} 19106.636 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderNoop thrpt
20 115293601.304 ▒} 940371.277 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderRAF thrpt
20 1265487.063 ▒} 12316.610 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderRewrite thrpt
20 12606468.237 ▒} 170407.536 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.baseline thrpt
20 2546731181.299 ▒} 12768234.725 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endConsole thrpt
20 54941.997 ▒} 3568.042 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endDirectConsole thrpt
20 225775.408 ▒} 5476.913 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endFile thrpt
20 731310.525 ▒} 11114.343 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endMMap thrpt
20 828480.404 ▒} 18808.924 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endNoop thrpt
20 7058097.116 ▒} 72897.218 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endRAF thrpt
20 782810.400 ▒} 4930.361 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endRewrite thrpt
20 2488038.697 ▒} 43576.434 ops/s
{code}
> 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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