Php VS Kotlin benchmarks

Current benchmark data was generated on Thu May 01 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 492ms 10ms 578.8MB 590ms 93ms kotlin/jvm 21
kotlin 1.kt 3846ms 34ms 144.1MB 4020ms 77ms kotlin/native 2.1.20
php 1.php timeout 0.0ms 141.6MB 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 3.2ms 163.1MB 143ms 33ms kotlin/jvm 21
kotlin 1.kt 204ms 3.4ms 17.6MB 210ms 3ms kotlin/native 2.1.20
php 1.php 617ms 9.1ms 62.4MB 587ms 17ms php 8.2.28

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 2.2ms 0.2ms 3.1MB 0ms 0ms kotlin/native 2.1.20
php 1.php 46ms 1.2ms 52.2MB 16ms 18ms php 8.2.28
kotlin 1-m.kt 61ms 0.9ms 47.6MB 78ms 16ms kotlin/jvm 21

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 406ms 17ms 680.2MB 453ms 90ms kotlin/jvm 21
kotlin 1.kt 1821ms 13ms 89.8MB 1913ms 43ms kotlin/native 2.1.20
php 1.php 3693ms 23ms 113.8MB 3653ms 27ms 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 7.9ms 207.3MB 207ms 40ms kotlin/jvm 21
kotlin 1.kt 259ms 1.7ms 24.9MB 263ms 10ms kotlin/native 2.1.20
php 1.php 826ms 1.9ms 66.9MB 790ms 23ms php 8.2.28