Programming Language and compiler
Benchmarks

Results for 38 of 40 languages from this run on actest1.

Unavailable in this run: Hack, Lisp. Follow the run link for failure details.

Rust VS C benchmarks

Current benchmark data was generated on Sun Sep 27 2026, full log can be found HERE

CONTRIBUTIONS are WELCOME!

CPU INFO:[x86_64][4 cores] Intel(R) Core(TM) i7-3687U CPU @ 2.10GHz (Model 58)

* -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.)

show numbers without parallelization

show numbers with parallelization

binarytrees

Input: 18

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	5.rs	2161ms	12ms	33.8MB	2140ms	3ms	rustc 1.98.1
rust	3.rs	2212ms	49ms	49.8MB	2183ms	10ms	rustc 1.98.1
rust	4.rs	2253ms	19ms	33.8MB	2230ms	10ms	rustc 1.98.1

Input: 15

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	5.rs	185ms	4.9ms	5.7MB	173ms	0ms	rustc 1.98.1
rust	4.rs	203ms	1.5ms	5.7MB	190ms	0ms	rustc 1.98.1
rust	3.rs	205ms	20ms	7.8MB	190ms	0ms	rustc 1.98.1

coro-prime-sieve

Input: 4000

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	5-m.rs	776ms	8.2ms	5.2MB	2963ms	60ms	rustc 1.98.1
rust	3-m.rs	1159ms	98ms	8.8MB	4437ms	87ms	rustc 1.98.1
rust	1-m.rs	1841ms	27ms	8.6MB	6870ms	303ms	rustc 1.98.1
rust	3.rs	2252ms	19ms	9.1MB	2177ms	60ms	rustc 1.98.1
rust	4.rs	3680ms	17ms	7.3MB	3663ms	3ms	rustc 1.98.1

Input: 1000

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	5-m.rs	80ms	20ms	3.2MB	270ms	0ms	rustc 1.98.1
rust	3-m.rs	81ms	11ms	5.8MB	260ms	10ms	rustc 1.98.1
rust	3.rs	128ms	4.2ms	3.9MB	113ms	0ms	rustc 1.98.1
rust	1-m.rs	128ms	3.9ms	5.5MB	437ms	23ms	rustc 1.98.1
rust	4.rs	243ms	10ms	3.3MB	233ms	0ms	rustc 1.98.1

edigits

Input: 250001

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	2.rs	195ms	1.6ms	4.4MB	183ms	0ms	rustc 1.98.1
rust	1.rs	203ms	29ms	3.6MB	197ms	0ms	rustc 1.98.1

Input: 100000

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	1.rs	52ms	2.2ms	2.8MB	40ms	0ms	rustc 1.98.1
rust	2.rs	54ms	4.2ms	3.4MB	43ms	0ms	rustc 1.98.1

fannkuch-redux

Input: 11

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	3-im.rs	376ms	5.4ms	3.1MB	1437ms	0ms	rustc 1.98.1
rust	2-im.rs	811ms	3.4ms	1.2MB	3080ms	0ms	rustc 1.98.1
rust	5-m.rs	1047ms	9.5ms	1.1MB	3977ms	3ms	rustc 1.98.1
rust	3-i.rs	1073ms	14ms	1.1MB	1063ms	0ms	rustc 1.98.1
rust	1-m.rs	1366ms	10ms	1.1MB	5263ms	0ms	rustc 1.98.1
rust	2-i.rs	2458ms	53ms	1.1MB	2443ms	0ms	rustc 1.98.1
rust	1.rs	2906ms	17ms	1.1MB	2893ms	0ms	rustc 1.98.1

Input: 10

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	3-im.rs	36ms	2.0ms	3.1MB	107ms	0ms	rustc 1.98.1
rust	2-im.rs	72ms	1.7ms	2.2MB	243ms	0ms	rustc 1.98.1
rust	5-m.rs	97ms	11ms	1.1MB	290ms	0ms	rustc 1.98.1
rust	3-i.rs	106ms	12ms	1.1MB	93ms	0ms	rustc 1.98.1
rust	1-m.rs	120ms	1.4ms	1.1MB	417ms	0ms	rustc 1.98.1
rust	2-i.rs	205ms	3.1ms	1.1MB	197ms	0ms	rustc 1.98.1
rust	1.rs	263ms	14ms	1.1MB	253ms	0ms	rustc 1.98.1

fasta

Input: 2500000

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	5c-m.rs	107ms	0.9ms	2.4MB	347ms	3ms	rustc 1.98.1
rust	5-m.rs	125ms	2.6ms	2.4MB	427ms	0ms	rustc 1.98.1
rust	1c.rs	173ms	1.3ms	1.2MB	163ms	0ms	rustc 1.98.1
rust	6.rs	186ms	9.1ms	1.1MB	180ms	0ms	rustc 1.98.1
rust	1.rs	213ms	3.2ms	1.1MB	200ms	0ms	rustc 1.98.1

Input: 250000

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	5c-m.rs	17ms	0.0ms	2.4MB	37ms	0ms	rustc 1.98.1
rust	5-m.rs	18ms	1.3ms	2.4MB	33ms	0ms	rustc 1.98.1
rust	1c.rs	20ms	1.3ms	1.1MB	10ms	0ms	rustc 1.98.1
rust	6.rs	21ms	1.0ms	1.1MB	10ms	0ms	rustc 1.98.1
rust	1.rs	24ms	0.5ms	1.1MB	10ms	0ms	rustc 1.98.1

helloworld

Input: QwQ

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	1.rs	1.6ms	0.3ms	1.9MB	0ms	0ms	rustc 1.98.1
c	1.c	1.7ms	0.2ms	1.1MB	0ms	0ms	gcc 13.3.0
c	1.c	1.8ms	0.3ms	1.6MB	0ms	0ms	clang 18.1.3

http-server

Input: 3000

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	1-m.rs	402ms	47ms	74.0MB	273ms	500ms	rustc 1.98.1
rust	2-m.rs	637ms	65ms	66.2MB	390ms	877ms	rustc 1.98.1
rust	2-http2.rs	728ms	174ms	57.0MB	1683ms	507ms	rustc 1.98.1
rust	1-http2.rs	737ms	86ms	68.5MB	1713ms	540ms	rustc 1.98.1

Input: 500

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	1.rs	129ms	6.7ms	17.4MB	43ms	57ms	rustc 1.98.1
rust	2.rs	210ms	23ms	22.9MB	63ms	180ms	rustc 1.98.1
rust	1-http2.rs	331ms	74ms	24.4MB	653ms	137ms	rustc 1.98.1
rust	2-http2.rs	556ms	55ms	30.7MB	1503ms	173ms	rustc 1.98.1

json-serde

Input: sample 5000

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	4-i.rs	38ms	0.7ms	7.9MB	27ms	0ms	rustc 1.98.1
rust	5-i.rs	46ms	2.0ms	10.1MB	30ms	3ms	rustc 1.98.1
rust	2.rs	76ms	0.4ms	33.8MB	57ms	3ms	rustc 1.98.1
rust	3.rs	77ms	2.6ms	32.1MB	53ms	7ms	rustc 1.98.1
rust	1.rs	114ms	0.6ms	68.3MB	80ms	20ms	rustc 1.98.1

Input: canada 15

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	5-i.rs	234ms	9.0ms	54.1MB	207ms	13ms	rustc 1.98.1
rust	4-i.rs	298ms	3.6ms	54.8MB	243ms	37ms	rustc 1.98.1
rust	3.rs	417ms	2.9ms	239.2MB	343ms	60ms	rustc 1.98.1
rust	2.rs	422ms	2.7ms	239.2MB	350ms	53ms	rustc 1.98.1
rust	1.rs	697ms	6.0ms	551.3MB	507ms	177ms	rustc 1.98.1

knucleotide

Input: 2500000_in

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
c	1-m.c	430ms	18ms	23.7MB	927ms	10ms	gcc 13.3.0
rust	8-m.rs	475ms	19ms	27.6MB	1260ms	13ms	rustc 1.98.1
c	1-m.c	605ms	36ms	25.9MB	1863ms	40ms	clang 18.1.3
rust	8.rs	838ms	32ms	23.8MB	810ms	10ms	rustc 1.98.1

Input: 250000_in

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
c	1-m.c	59ms	8.2ms	13.2MB	103ms	3ms	gcc 13.3.0
rust	8-m.rs	62ms	6.2ms	16.3MB	140ms	3ms	rustc 1.98.1
c	1-m.c	83ms	7.5ms	17.0MB	267ms	7ms	clang 18.1.3
rust	8.rs	100ms	1.7ms	11.6MB	83ms	0ms	rustc 1.98.1

lru

Input: 1000 1000000

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	0-unsafe.rs	44ms	3.1ms	1.1MB	33ms	0ms	rustc 1.98.1
rust	1.rs	70ms	7.9ms	1.1MB	60ms	0ms	rustc 1.98.1

Input: 1000 3000000

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	0-unsafe.rs	202ms	23ms	1.1MB	193ms	0ms	rustc 1.98.1
rust	1.rs	280ms	31ms	1.1MB	270ms	0ms	rustc 1.98.1

Input: 100 500000

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	0-unsafe.rs	28ms	0.2ms	1.2MB	20ms	0ms	rustc 1.98.1
rust	1.rs	46ms	2.5ms	1.1MB	37ms	0ms	rustc 1.98.1

mandelbrot

Input: 5000

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
c	1-mffi.c	293ms	24ms	7.4MB	1010ms	20ms	clang 18.1.3
rust	8.rs	410ms	2.4ms	4.6MB	393ms	3ms	rustc 1.98.1
c	1-ffi.c	438ms	34ms	6.5MB	423ms	0ms	clang 18.1.3
c	1-mffi.c	516ms	3.0ms	6.3MB	1540ms	0ms	gcc 13.3.0
c	1-ffi.c	1010ms	20ms	5.9MB	997ms	0ms	gcc 13.3.0

Input: 1000

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
c	1-mffi.c	18ms	2.0ms	6.8MB	37ms	0ms	clang 18.1.3
rust	8.rs	21ms	1.5ms	1.1MB	13ms	0ms	rustc 1.98.1
c	1-ffi.c	23ms	2.8ms	2.6MB	10ms	0ms	clang 18.1.3
c	1-mffi.c	30ms	5.0ms	2.2MB	63ms	0ms	gcc 13.3.0
c	1-ffi.c	45ms	0.5ms	2.3MB	33ms	0ms	gcc 13.3.0

merkletrees

Input: 17

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	1.rs	1084ms	8.3ms	33.8MB	1060ms	10ms	rustc 1.98.1

Input: 15

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	1.rs	212ms	3.5ms	9.8MB	197ms	0ms	rustc 1.98.1

nbody

Input: 5000000

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	4-i.rs	221ms	1.1ms	1.1MB	210ms	0ms	rustc 1.98.1
rust	7-i.rs	333ms	4.8ms	1.1MB	320ms	0ms	rustc 1.98.1
rust	1.rs	361ms	3.0ms	1.1MB	350ms	0ms	rustc 1.98.1
c	8-i.c	393ms	4.7ms	1.1MB	387ms	0ms	gcc 13.3.0
c	5.c	483ms	1.6ms	1.5MB	470ms	0ms	clang 18.1.3
rust	2.rs	484ms	2.9ms	1.1MB	473ms	0ms	rustc 1.98.1
c	2.c	520ms	1.4ms	1.0MB	510ms	0ms	gcc 13.3.0
c	5.c	541ms	2.5ms	1.1MB	530ms	0ms	gcc 13.3.0
c	2.c	549ms	1.2ms	1.5MB	540ms	0ms	clang 18.1.3
c	8-i.c	555ms	0.8ms	1.5MB	550ms	0ms	clang 18.1.3

Input: 500000

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	4-i.rs	24ms	0.3ms	1.1MB	17ms	0ms	rustc 1.98.1
rust	7-i.rs	36ms	0.4ms	1.1MB	23ms	0ms	rustc 1.98.1
rust	1.rs	39ms	0.7ms	1.1MB	30ms	0ms	rustc 1.98.1
c	8-i.c	42ms	1.4ms	1.1MB	30ms	0ms	gcc 13.3.0
rust	2.rs	52ms	0.8ms	1.1MB	43ms	0ms	rustc 1.98.1
c	5.c	52ms	1.1ms	1.5MB	40ms	0ms	clang 18.1.3
c	2.c	55ms	0.3ms	1.1MB	50ms	0ms	gcc 13.3.0
c	5.c	59ms	2.8ms	1.1MB	50ms	0ms	gcc 13.3.0
c	2.c	59ms	1.7ms	1.5MB	50ms	0ms	clang 18.1.3
c	8-i.c	61ms	3.7ms	1.5MB	53ms	0ms	clang 18.1.3

nsieve

Input: 12

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	2.rs	656ms	18ms	6.6MB	640ms	0ms	rustc 1.98.1
c	1.c	966ms	2.5ms	40.8MB	943ms	7ms	clang 18.1.3
c	1.c	967ms	2.3ms	40.3MB	943ms	7ms	gcc 13.3.0
rust	1.rs	1035ms	16ms	40.8MB	1010ms	10ms	rustc 1.98.1

Input: 10

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	2.rs	129ms	12ms	2.8MB	117ms	0ms	rustc 1.98.1
c	1.c	168ms	1.1ms	11.1MB	153ms	0ms	gcc 13.3.0
c	1.c	169ms	2.0ms	11.6MB	157ms	0ms	clang 18.1.3
rust	1.rs	212ms	36ms	11.7MB	193ms	0ms	rustc 1.98.1

pidigits

Input: 8000

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	2.rs	2314ms	44ms	2.8MB	2230ms	70ms	rustc 1.98.1
rust	1.rs	10361ms	53ms	3.3MB	8747ms	1587ms	rustc 1.98.1

Input: 4000

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	2.rs	506ms	4.3ms	2.5MB	493ms	0ms	rustc 1.98.1
rust	1.rs	1997ms	8.8ms	2.8MB	1823ms	157ms	rustc 1.98.1

regex-redux

Input: 2500000_in

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	7.rs	594ms	1.7ms	80.5MB	683ms	7ms	rustc 1.98.1

Input: 250000_in

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	7.rs	69ms	1.7ms	11.0MB	63ms	0ms	rustc 1.98.1

secp256k1

Input: 2000

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	0.rs	177ms	4.7ms	1.1MB	167ms	0ms	rustc 1.98.1
rust	1.rs	2238ms	23ms	1.1MB	2223ms	0ms	rustc 1.98.1

Input: 500

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
rust	0.rs	46ms	1.1ms	1.1MB	37ms	0ms	rustc 1.98.1
rust	1.rs	562ms	1.3ms	1.1MB	550ms	0ms	rustc 1.98.1

spectral-norm

Input: 8000

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
c	6-im.c	1696ms	2.3ms	5.2MB	6667ms	17ms	clang 18.1.3
c	6-im.c	1825ms	12ms	2.1MB	7167ms	0ms	gcc 13.3.0
c	4-m.c	2992ms	24ms	5.2MB	11847ms	10ms	clang 18.1.3
rust	7-m.rs	3024ms	23ms	2.2MB	11890ms	10ms	rustc 1.98.1
c	4-m.c	3065ms	33ms	2.4MB	12143ms	3ms	gcc 13.3.0
c	5-im.c	3141ms	26ms	5.2MB	12413ms	10ms	clang 18.1.3
c	5-im.c	3152ms	6.6ms	1.4MB	12477ms	0ms	gcc 13.3.0
rust	7.rs	5535ms	8.5ms	1.1MB	5527ms	0ms	rustc 1.98.1
rust	2-m.rs	5819ms	1.9ms	2.4MB	22997ms	13ms	rustc 1.98.1
c	3-m.c	5834ms	6.1ms	3.3MB	23127ms	10ms	clang 18.1.3
c	3-m.c	5845ms	11ms	1.4MB	23160ms	3ms	gcc 13.3.0
rust	2.rs	11036ms	18ms	2.1MB	11023ms	0ms	rustc 1.98.1

Input: 4000

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
c	6-im.c	435ms	3.9ms	3.3MB	1680ms	0ms	clang 18.1.3
c	6-im.c	503ms	87ms	1.1MB	1907ms	0ms	gcc 13.3.0
rust	7-m.rs	747ms	2.9ms	1.1MB	2903ms	7ms	rustc 1.98.1
c	5-im.c	787ms	0.9ms	1.4MB	3087ms	0ms	gcc 13.3.0
c	5-im.c	790ms	4.1ms	3.3MB	3097ms	0ms	clang 18.1.3
c	4-m.c	790ms	73ms	3.2MB	3080ms	3ms	clang 18.1.3
c	4-m.c	834ms	106ms	1.5MB	3233ms	0ms	gcc 13.3.0
rust	7.rs	1386ms	2.3ms	1.1MB	1377ms	0ms	rustc 1.98.1
rust	2-m.rs	1459ms	0.7ms	3.1MB	5733ms	3ms	rustc 1.98.1
c	3-m.c	1463ms	1.5ms	1.4MB	5773ms	0ms	gcc 13.3.0
c	3-m.c	1467ms	4.2ms	3.3MB	5757ms	0ms	clang 18.1.3
rust	2.rs	2762ms	2.0ms	1.1MB	2750ms	0ms	rustc 1.98.1

Input: 2000

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
c	6-im.c	116ms	0.7ms	5.6MB	420ms	7ms	clang 18.1.3
c	6-im.c	123ms	0.3ms	3.1MB	453ms	0ms	gcc 13.3.0
rust	7-m.rs	189ms	0.4ms	3.1MB	697ms	3ms	rustc 1.98.1
c	4-m.c	200ms	6.3ms	3.2MB	733ms	7ms	clang 18.1.3
c	4-m.c	200ms	0.9ms	1.4MB	763ms	0ms	gcc 13.3.0
c	5-im.c	202ms	2.1ms	5.2MB	753ms	3ms	clang 18.1.3
c	5-im.c	208ms	3.0ms	1.4MB	790ms	0ms	gcc 13.3.0
rust	7.rs	351ms	1.2ms	1.1MB	340ms	0ms	rustc 1.98.1
rust	2-m.rs	368ms	0.3ms	1.2MB	1410ms	3ms	rustc 1.98.1
c	3-m.c	370ms	0.5ms	3.3MB	1430ms	0ms	clang 18.1.3
c	3-m.c	371ms	0.9ms	1.5MB	1440ms	0ms	gcc 13.3.0
rust	2.rs	693ms	2.4ms	1.1MB	680ms	0ms	rustc 1.98.1