id summary reporter owner description type status priority milestone component version resolution keywords cc uname nginx_version 1636 CPU 100% with njs on simple base64 decode (2.3.1) 131@… "I'm using a simple js_set to base64 decode (via String.bytesFrom) as proxy_pass destination, and CPU goes too high (100%) under heavy load. I can reproduce this using ab -c 200 -n 10000 ab -c 200 -n 10000 ""http://127.0.0.1/ping"" => 0% CPU, all good ab -c 200 -n 10000 ""http://127.0.0.1/proxy/string => 35% CPU, all good ab -c 200 -n 10000 ""http://127.0.0.1/proxy/js_set => 100%CPU, no good. I'm guessing the resolver also use CPU cycle, but i'm unhappy with current performances, is there something i can tweak ? (switching to worker_processes auto helped a bit, but 'im still looking for something faster) Thank you for your kind help {{{ js_include ""./conf.d/njs/x_proxypass.js""; js_set $x_proxypass x_proxypass; server { listen 80 default_server; gzip off; location /ping { return 200 ""pong""; } location /proxy/string { aio threads; proxy_buffering off; proxy_pass 'https://131.github.io/ping'; } location /proxy/js_set { aio threads; proxy_buffering off; proxy_pass $x_proxypass; } access_log /dev/null; } }}} {{{ function x_proxypass(r) { var src = 'aHR0cHM6Ly8xMzEuZ2l0aHViLmlvL3Bpbmc='; return String.bytesFrom(src, 'base64'); } }}} " defect closed minor nginx-module 1.14.x invalid njs, performance Linux 3.16.0-6-amd64 #1 SMP Debian 3.16.57-2 (2018-07-14) x86_64 GNU/Linux "nginx version: nginx/1.14.0 built by gcc 4.9.2 (Debian 4.9.2-10+deb8u1) built with OpenSSL 1.0.1t 3 May 2016 TLS SNI support enabled configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib/nginx/modules --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nginx --group=nginx --with-compat --with-file-aio --with-threads --with-http_addition_module --with-http_auth_request_module --with-http_dav_module --with-http_flv_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_mp4_module --with-http_random_index_module --with-http_realip_module --with-http_secure_link_module --with-http_slice_module --with-http_ssl_module --with-http_stub_status_module --with-http_sub_module --with-http_v2_module --with-mail --with-mail_ssl_module --with-stream --with-stream_realip_module --with-stream_ssl_module --with-stream_ssl_preread_module --with-cc-opt='-g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fPIC' --with-ld-opt='-Wl,-z,relro -Wl,-z,now -Wl,--as-needed -pie' "