Crystal

crystal 1.17.0

#7

Overall rank

4.95×

Score

17/17

Problems covered

0

Did not finish

Best result per problem

Problem	Rank	Code	Time	Peak mem
binarytrees	#11 of 19	1.cr	1.10s	68.3MB
coro-prime-sieve	#10 of 19	1.cr	1.20s	25.9MB
edigits	#11 of 19	1.cr	502ms	10.8MB
fannkuch-redux	#14 of 19	1.cr	2.42s	6.9MB
fasta	#18 of 19	2.cr	6.89s	7.8MB
http-server	#8 of 19	2.cr	52ms	21.0MB
json-serde	#5 of 19	1.cr	438ms	205.1MB
knucleotide	#9 of 18	1.cr	1.47s	57.6MB
lru	#4 of 19	0-unsafe.cr	98ms	7.1MB
mandelbrot	#4 of 19	1.cr	274ms	13.7MB
merkletrees	#12 of 19	1.cr	671ms	68.2MB
nbody	#14 of 19	2.cr	276ms	7.5MB
nsieve	#4 of 19	2.cr	348ms	12.3MB
pidigits	#10 of 19	1.cr	1.77s	10.3MB
regex-redux	#9 of 18	2.cr	1.34s	199.8MB
secp256k1	#5 of 19	1.cr	796ms	8.3MB
spectral-norm	#15 of 19	1.cr	5.08s	8.8MB

Head to head

Compare with

Crystal is faster on 1 of 17 shared problems

Problem	Crystal	C++	Faster by
binarytrees	1.10s	649ms	C++ 1.69×
coro-prime-sieve	1.20s	53ms	C++ 22.59×
edigits	502ms	24ms	C++ 20.84×
fannkuch-redux	2.42s	1.76s	C++ 1.37×
fasta	6.89s	242ms	C++ 28.43×
http-server	52ms	27ms	C++ 1.91×
json-serde	438ms	327ms	C++ 1.34×
knucleotide	1.47s	275ms	C++ 5.35×
lru	98ms	96ms	C++ 1.02×
mandelbrot	274ms	758ms	Crystal 2.77×
merkletrees	671ms	300ms	C++ 2.23×
nbody	276ms	118ms	C++ 2.35×
nsieve	348ms	276ms	C++ 1.26×
pidigits	1.77s	180ms	C++ 9.84×
regex-redux	1.34s	658ms	C++ 2.04×
secp256k1	796ms	430ms	C++ 1.85×
spectral-norm	5.08s	1.32s	C++ 3.85×

Over time

Overall score after each run on Apple M5 laptop. Lower is faster.

Recent runs, newest first
Run	Version	Rank	Score	Change
Oct 20, 2026	crystal 1.17.0	#7	4.95×	no change
Oct 20, 2026	crystal 1.17.0	#7	4.95×	47.6% slower
Oct 19, 2026	crystal 1.17.0	#7	3.35×	–