Hi, I've tried to run logback-perf, may you'll find the result useful. Jiří Pejchal logback 1.1.10, CPU E3-1240 v5 @ 3.50GHz, Samsung SSD 850 PRO 128GB, JDK 1.8.0_102 "Benchmark","Mode","Threads","Samples","Score","Score Error (99.9%)","Unit" "ch.qos.logback.perf.FileAppenderBenchmark.log4j1File","thrpt",1,10,1577.009429,33.154970,"ops/ms" "ch.qos.logback.perf.FileAppenderBenchmark.log4j2File","thrpt",1,10,1997.150618,5.731020,"ops/ms" "ch.qos.logback.perf.FileAppenderBenchmark.log4j2RAF","thrpt",1,10,2141.647559,8.157930,"ops/ms" "ch.qos.logback.perf.FileAppenderBenchmark.logbackFile","thrpt",1,10,2480.481451,71.973275,"ops/ms" "Benchmark","Mode","Threads","Samples","Score","Score Error (99.9%)","Unit" "ch.qos.logback.perf.FileAppenderBenchmark.log4j1File","thrpt",2,10,1124.216809,24.067386,"ops/ms" "ch.qos.logback.perf.FileAppenderBenchmark.log4j2File","thrpt",2,10,2759.163123,37.934327,"ops/ms" "ch.qos.logback.perf.FileAppenderBenchmark.log4j2RAF","thrpt",2,10,2739.519271,39.348186,"ops/ms" "ch.qos.logback.perf.FileAppenderBenchmark.logbackFile","thrpt",2,10,1448.307609,14.708407,"ops/ms" "Benchmark","Mode","Threads","Samples","Score","Score Error (99.9%)","Unit" "ch.qos.logback.perf.FileAppenderBenchmark.log4j1File","thrpt",4,10,778.720898,35.585861,"ops/ms" "ch.qos.logback.perf.FileAppenderBenchmark.log4j2File","thrpt",4,10,2410.408163,74.131141,"ops/ms" "ch.qos.logback.perf.FileAppenderBenchmark.log4j2RAF","thrpt",4,10,2833.438968,192.704404,"ops/ms" "ch.qos.logback.perf.FileAppenderBenchmark.logbackFile","thrpt",4,10,664.899426,174.136282,"ops/ms" "Benchmark","Mode","Threads","Samples","Score","Score Error (99.9%)","Unit" "ch.qos.logback.perf.FileAppenderBenchmark.log4j1File","thrpt",8,10,444.521720,4.222798,"ops/ms" "ch.qos.logback.perf.FileAppenderBenchmark.log4j2File","thrpt",8,10,1877.270743,563.989875,"ops/ms" "ch.qos.logback.perf.FileAppenderBenchmark.log4j2RAF","thrpt",8,10,1718.415344,355.749375,"ops/ms" "ch.qos.logback.perf.FileAppenderBenchmark.logbackFile","thrpt",8,10,589.209144,14.991014,"ops/ms" "Benchmark","Mode","Threads","Samples","Score","Score Error (99.9%)","Unit" "ch.qos.logback.perf.FileAppenderBenchmark.log4j1File","thrpt",16,10,1047.869080,31.680525,"ops/ms" "ch.qos.logback.perf.FileAppenderBenchmark.log4j2File","thrpt",16,10,958.811252,9.776799,"ops/ms" "ch.qos.logback.perf.FileAppenderBenchmark.log4j2RAF","thrpt",16,10,923.054985,12.930723,"ops/ms" "ch.qos.logback.perf.FileAppenderBenchmark.logbackFile","thrpt",16,10,627.107129,26.521755,"ops/ms" "Benchmark","Mode","Threads","Samples","Score","Score Error (99.9%)","Unit" "ch.qos.logback.perf.FileAppenderBenchmark.log4j1File","thrpt",32,10,782.954165,44.671984,"ops/ms" "ch.qos.logback.perf.FileAppenderBenchmark.log4j2File","thrpt",32,10,947.090112,14.686491,"ops/ms" "ch.qos.logback.perf.FileAppenderBenchmark.log4j2RAF","thrpt",32,10,887.397303,9.720897,"ops/ms" "ch.qos.logback.perf.FileAppenderBenchmark.logbackFile","thrpt",32,10,605.394268,47.669206,"ops/ms" "Benchmark","Mode","Threads","Samples","Score","Score Error (99.9%)","Unit" "ch.qos.logback.perf.FileAppenderBenchmark.log4j1File","thrpt",64,10,1059.913755,35.506168,"ops/ms" "ch.qos.logback.perf.FileAppenderBenchmark.log4j2File","thrpt",64,10,972.569039,42.377445,"ops/ms" "ch.qos.logback.perf.FileAppenderBenchmark.log4j2RAF","thrpt",64,10,990.437705,18.712172,"ops/ms" "ch.qos.logback.perf.FileAppenderBenchmark.logbackFile","thrpt",64,10,539.095359,52.330557,"ops/ms"