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https://issues.apache.org/jira/browse/LOG4J2-1395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15307121#comment-15307121
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Gary Gregory commented on LOG4J2-1395:
--------------------------------------
Wow, that generates a lot of output!
{noformat}
05/30/2016 19:20 2,289,793,281 perf-test1.txt
05/30/2016 19:36 2,175,649,254 perf-test2.txt
{noformat}
Here is the tail of each:
{noformat}
# Run complete. Total time: 00:09:16
Benchmark Mode
Samples Score Error Units
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderConsole thrpt
20 22099.978 ▒ 408.401 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderDirectConsole thrpt
20 314611.143 ▒ 25863.942 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderFile thrpt
20 891463.180 ▒ 92075.369 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderMMap thrpt
20 942510.468 ▒ 64925.884 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderNoop thrpt
20 61038778.560 ▒ 5375877.502 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderRAF thrpt
20 1027424.335 ▒ 11661.252 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderRewrite thrpt
20 9226404.981 ▒ 467851.551 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.baseline thrpt
20 2330235531.997 ▒ 28472622.782 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endConsole thrpt
20 20978.995 ▒ 432.607 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endDirectConsole thrpt
20 252695.260 ▒ 20294.564 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endFile thrpt
20 560562.698 ▒ 32765.623 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endMMap thrpt
20 612437.418 ▒ 39819.174 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endNoop thrpt
20 4688354.228 ▒ 50592.100 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endRAF thrpt
20 605235.685 ▒ 5680.906 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endRewrite thrpt
20 1812314.910 ▒ 127466.771 ops/s
{noformat}
{noformat}
# Run complete. Total time: 00:09:31
Benchmark Mode
Samples Score Error Units
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderConsole thrpt
20 28811.248 ▒ 814.737 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderDirectConsole thrpt
20 253029.271 ▒ 7362.119 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderFile thrpt
20 1348679.133 ▒ 473730.369 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderMMap thrpt
20 2416355.009 ▒ 229609.282 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderNoop thrpt
20 8940494.520 ▒ 88586.957 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderRAF thrpt
20 1041129.078 ▒ 566640.692 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.appenderRewrite thrpt
20 11768869.120 ▒ 161027.125 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.baseline thrpt
20 7495107669.783 ▒ 576103849.609 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endConsole thrpt
20 21146.252 ▒ 1186.253 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endDirectConsole thrpt
20 250206.365 ▒ 12221.422 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endFile thrpt
20 310056.702 ▒ 44482.678 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endMMap thrpt
20 1196950.945 ▒ 343888.712 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endNoop thrpt
20 5712065.104 ▒ 64659.847 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endRAF thrpt
20 402981.984 ▒ 66647.080 ops/s
o.a.l.l.p.j.Log4j2AppenderComparisonBenchmark.end2endRewrite thrpt
20 4205252.543 ▒ 206761.035 ops/s
{noformat}
> 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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