Programming Language and compiler
Benchmarks

Php VS Kotlin benchmarks

Current benchmark data was generated on Mon Jun 23 2025, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][4 cores] AMD EPYC 7763 64-Core Processor (Model 1)

* -m in a file name stands for multi-threading or multi-processing

* -i in a file name stands for direct intrinsics usage. (Usage of simd intrinsics via libraries is not counted)

* -ffi in a file name stands for non-stdlib FFI usage

* (You may find time < time(user) + time(sys) for some non-parallelized programs, the overhead is from GC or JIT compiler, which are allowed to take advantage of multi-cores as that's more close to real-world scenarios.)

binarytrees

Input: 18

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 502ms 3.0ms 581.8MB 603ms 93ms kotlin/jvm 21
kotlin 1.kt 4205ms 55ms 144.8MB 4410ms 63ms kotlin/native 2.1.20
php 1.php timeout 0.0ms 141.9MB 4963ms 27ms php 8.2.28

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 121ms 3.5ms 163.1MB 150ms 30ms kotlin/jvm 21
kotlin 1.kt 219ms 14ms 17.7MB 223ms 7ms kotlin/native 2.1.20
php 1.php 621ms 4.0ms 62.7MB 587ms 20ms php 8.2.28

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 2.1ms 0.1ms 3.0MB 0ms 0ms kotlin/native 2.1.20
php 1.php 47ms 0.9ms 52.3MB 16ms 20ms php 8.2.28
kotlin 1-m.kt 62ms 0.8ms 47.8MB 78ms 18ms kotlin/jvm 21

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 394ms 11ms 680.4MB 447ms 93ms kotlin/jvm 21
kotlin 1.kt 1937ms 26ms 90.4MB 2023ms 40ms kotlin/native 2.1.20
php 1.php 3756ms 39ms 113.6MB 3717ms 23ms php 8.2.28

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 159ms 3.2ms 207.4MB 210ms 43ms kotlin/jvm 21
kotlin 1.kt 288ms 11ms 25.8MB 290ms 10ms kotlin/native 2.1.20
php 1.php 823ms 5.4ms 66.8MB 787ms 20ms php 8.2.28