nginx 1.2.0 is slower than 1.1.12?

[Delta Yeh]

The loadrunner output of 1.1.19 is attached, there are many connection
timeout error  reported by loadrunner.

 My latest test show that 1.1.18 is OK , so changes between 1.1.18 and 1.1.19
make things worse in my test lab.

 the os is debian squeeze 32bit, the config is :

user root root;
worker_rlimit_nofile 81920;
worker_processes 2;
pid /secone/var/run/nginx.pid;
error_log /dev/null error;
pcre_jit on;
events {
	use epoll;
	worker_connections 12000;
	multi_accept on;
	accept_mutex off;
}
http {
	include mime.types;
	default_type application/octet-stream;
	sendfile on;
	tcp_nopush on;
	reset_timedout_connection on;
	ignore_invalid_headers on;
	underscores_in_headers on;
	proxy_buffering on;
	proxy_ignore_client_abort on;
	proxy_intercept_errors on;
	client_header_buffer_size 16k;
	large_client_header_buffers 4 16k;
	msie_padding off;
	msie_refresh off;
	access_log off;
	
	upstream upstream_www {
		server 192.168.2.3:80 max_fails=0 ;
		server 192.168.2.4:80 max_fails=0 ;
		server 192.168.2.5:80 max_fails=0 ;
		server 192.168.2.6:80 max_fails=0 ;
	}
	upstream upstream_www2 {
		server 192.168.2.254:80 max_fails=0 ;
	}

	server {
		
		listen 192.168.1.1:80 ;
		server_name _;
		proxy_set_header Host $http_host;
		location / {
			proxy_pass http://upstream_www2;
			proxy_redirect default;
		}
	}

	server {
	
		client_header_timeout 60;
		client_body_timeout 120;
		client_max_body_size 100m;
		client_header_buffer_size 16k;
		large_client_header_buffers 4 16k;
		proxy_buffer_size 16k;
		proxy_buffers 4 16k;
		listen 192.168.1.1:80 ;
		server_name www.test.com;
		
		ssl off;
		keepalive_timeout 0;
		proxy_cache_key $scheme$host$request_uri;

		location / {
			proxy_set_header Accept-Encoding identity;
			proxy_set_header Host $http_host;
			proxy_next_upstream error timeout http_500 http_502 http_503 http_504;
			proxy_cache off;
			proxy_pass http://upstream_www;
		}
	}

}

在 2012年4月27日 下午4:08，Sergey Budnevitch <sb at waeme.net> 写道：
>
> On 27.04.2012, at 11:12, Delta Yeh wrote:
>
>> I use loadrunner, and although get the conclusion:1.2.0 is slower than 1.1.12
>> I observe connect timeout error in loadrunner console, but I didn't see such
>> error in 1.1.12.
>>
>> For 1.2.0 , the rps line dive to very lower every 15-20 seconds, I think
>> it because  connect  to nginx timeout .
>>
>> I test 1.1.17 , the result is almost the same as 1.1.12.
>> I then test 1.1.19 , the result is  like 1.2.0,
>>
>> So what happened between 1.1.17 and 1.1.19 will result the connection
>> timeout every 15-20 seconds?
>
> Could you show your config? And what OS are you using?
>
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