さらに改善

etc/mysql/mysql.conf.d/mysqld.cnf

@@ -79,3 +79,7 @@ max_binlog_size   = 100M
 # binlog_do_db		= include_database_name
 # binlog_ignore_db	= include_database_name
 
+innodb_buffer_pool_size=2G
+thread_cache_size=100
+innodb_file_per_table=ON
+tmp_table_size=1G

etc/nginx/nginx.conf

@@ -3,9 +3,10 @@ worker_processes auto;
 pid /run/nginx.pid;
 error_log /var/log/nginx/error.log;
 include /etc/nginx/modules-enabled/*.conf;
+worker_rlimit_nofile 65536;
 
 events {
-	worker_connections 768;
+	worker_connections 10240;
 	# multi_accept on;
 }
 
@@ -55,6 +56,18 @@ http {
 	# gzip_http_version 1.1;
 	# gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;
 
+	keepalive_timeout 120s;
+  keepalive_requests 1000; # 1つの接続での最大リクエスト数
+	client_body_timeout 120s;
+	client_header_timeout 120s;
+	proxy_read_timeout 300s;
+  proxy_connect_timeout 300s;
+  proxy_send_timeout 300s;
+	client_max_body_size 100M;
+	proxy_buffer_size 16k;
+  proxy_buffers 4 32k;
+  proxy_busy_buffers_size 64k;
+
 	##
 	# Virtual Host Configs
 	##

etc/nginx/sites-available/isuride.conf

@@ -9,7 +9,7 @@ server {
 }
 
 server {
-  listen 443 ssl default_server;
+  listen 443 ssl http2 default_server;
   server_name _;
   index index.html index.htm index.nginx-debian.html;
   root /var/www/html;
@@ -26,7 +26,7 @@ server {
 }
 
 server {
-  listen 443 ssl;
+  listen 443 ssl http2;
   server_name xiv.isucon.net;
   server_name *.xiv.isucon.net;