PHP7.0-fpm extremly slow on Ubuntu Windows Subsystem Linux

Question

I installed Windows Subsystem Ubuntu shell recently and shifted all of my development from XAMPP to nginx and php7.0-fpm installed through ubuntu windows subsystem.

The problem i am facing is that php files load extremly slower. For a test I simply put

<?php phpinfo(); ?>

in a file and executed it. It literally took the system two minutes to return the reply. I have debugged a lot but could not find any solution.

I am running nginx through nginx server blocks and have setup my local domains.

I am sure that php is slower by observing that if i load a static file i.e a txt or html files, it loads blazingly fast.

Below are my sites enabled files and nginx conf file ..

Sites Enabled

server {
    listen 80 ;
    listen [::]:80;

    root /mnt/c/xampp/htdocs/doit/;
    index index.html index.php;

    server_name doit.dev www.doit.dev;
    error_log /var/log/nginx/error.log;
    location / {
        try_files $uri $uri/ =404;
    }
    location ~ \.php$ {
        include fastcgi_params;
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_read_timeout 120;
        fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
    }

    location ~ /\.ht {
        deny all;
    }   
}

Nginx Conf File:

user www-data;
worker_processes auto;
pid /run/nginx.pid;

events {
    worker_connections 768;
    # multi_accept on;
}

http {

    ##
    # Basic Settings
    ##

    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    types_hash_max_size 2048;
    # server_tokens off;

    server_names_hash_bucket_size 64;
    # server_name_in_redirect off;

    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    ##
    # SSL Settings
    ##

    ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
    ssl_prefer_server_ciphers on;

    ##
    # Logging Settings
    ##

    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;

    ##
    # Gzip Settings
    ##

    gzip on;
    gzip_disable "msie6";

    # gzip_vary on;
    # gzip_proxied any;
    # gzip_comp_level 6;
    # gzip_buffers 16 8k;
    # gzip_http_version 1.1;
    # gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

    ##
    # Virtual Host Configs
    ##

    include /etc/nginx/conf.d/*.conf;
    include /etc/nginx/sites-enabled/*;
}


#mail {
#   # See sample authentication script at:
#   # http://wiki.nginx.org/ImapAuthenticateWithApachePhpScript
# 
#   # auth_http localhost/auth.php;
#   # pop3_capabilities "TOP" "USER";
#   # imap_capabilities "IMAP4rev1" "UIDPLUS";
# 
#   server {
#       listen     localhost:110;
#       protocol   pop3;
#       proxy      on;
#   }
# 
#   server {
#       listen     localhost:143;
#       protocol   imap;
#       proxy      on;
#   }
#}

Error logs for both nginx and php-fpm working, nothing being logged against errors.

Answer 1

Using windows 10 v1803, and nginx & php7 fpm via WSL.

Changing listen to 127.0.0.1:9000 doesn't work for me.

After spending hours of googling, I found: https://github.com/Microsoft/WSL/issues/2100

i.e. Add

fastcgi_buffering off;

to nginx.conf, and save my day.