As usual on the each years, in this year too, many Japanese web developers attended on ISUCON (an event to improve the HTTP server in a good fast). And in this year most of developers choiced Go.
# Preliminary stage (language, teams, ratio)
Go 328 62.2%
Ruby 59 11.2%
Python 47 8.9%
Nodejs 42 8.0%
Rust 24 4.6%
PHP 20 3.8%
Perl 7 1.3%
# Final stage
Go 27 90.0%
Rust 2 6.7%
Nodejs 1 3.3%
FYI, Below is languages that was used by Winner for each holds.
2011 ISUCON1 Perl
2012 ISUCON2 Perl
2013 ISUCON3 Perl
2014 ISUCON4 Perl
2015 ISUCON5 Perl
2016 ISUCON6 Go
2017 ISUCON7 Go
2018 ISUCON8 Go
2019 ISUCON9 Ruby
2021 ISOCON10 Go