[PHP] stream, socket 다운로드 벤치마킹 및 튜닝 - 작성자 : 김칠봉 < san2(at)linuxchannel.net > - 작성일 : 2005.03.30 내용추가 2005.03.28 - 내 용 : client stream(blocking), socket(blocking/non-blocking) download Benchmark with server KeepAlive - 수 준 : 초중급 이상 - 키워드 : fsockopen(), feof(), fgets(), fread(), KeepAlive, Connection blocking, non-blocking, socket_read() *주1) 이 문서에 대한 최신 내용은 아래 URL에서 확인할 수 있습니다. http://linuxchannel.net/docs/php-stream-socket-benchmark.txt *주2) 이 문서에서 사용한 `buf'는 공식적인 용어가 아니고, buffering 한 데이터나 또는 그것들을 지칭하는 PHP 사용자 변수를 말합니다. *조건) - 서버(아파치) KeepAlive On/Off, 약 100 MBytes data - 클라이언트(PHP cli) blocking/non-blocking mode (PHP 로 비교적 덩치큰 파일을 다운로드 받을 경우에 해당됨) * benchmark source) http://ftp.linuxchannel.net/devel/php_download/ 목차 ------------------------------------------------------------------------------------ 1. client blocking (fsockopen) benchmark 2. client blocking (socket) benchmark 3. client non-blocking (socket) benchmark 4. client non-blocking buf check (socket) benchmark ------------------------------------------------------------------------------------ 1. client blocking (fsockopen) benchmark ------------------------------------------------------------------------------------ clinet server KeepAlive On server KeepAlive Off HTTP header ------------------------------------------------------------------------------------ NA(feof) 3965.9 KB/sec* 10718.7KB/sec Connection 10882.1 KB/sec 10904.4KB/sec close timeout 4017.3 KB/sec* 10769.2KB/sec buf check 3984.5 KB/sec* 10811.5KB/sec 　 Connection + timeout 11094.3 KB/sec 11382.6KB/sec close Connection + buf check 10700.1 KB/sec 11489.4KB/sec close timeout + buf check 10059.0 KB/sec 11073.0KB/sec Connection + timeout + buf check 10589.5 KB/sec 11497.5KB/sec close ------------------------------------------------------------------------------------ PHP guide ( Connection: close [+ ...] // <-- recommend or timeout + buf check [+ ...] ) example ( $req = "GET /path HTTP/1.1\r\nHost: hostname\r\nConnection: close\r\n\r\n"; $fp = fscokopen(...); stream_set_timeout($fp,0,500000); // some recommend fwrite($fp,$req); while($buf = fread($fp,4096)) { $rbuf .= $buf; ... } fclose($fp); ) 2. client blocking (socket) benchmark ------------------------------------------------------------------------------------ clinet server KeepAlive On server KeepAlive Off HTTP header ------------------------------------------------------------------------------------ NA(socket_read) 4014.9KB/sec* 11463.8KB/sec Connection 11491.0KB/sec 11465.4KB/sec close timeout 11372.2KB/sec 11482.3KB/sec buf(1M) 4007.5KB/sec* 11294.7KB/sec Connection + timeout 11373.5KB/sec 11496.8KB/sec close Connection + buf(1M) 11500.8KB/sec 11017.5KB/sec close timeout + buf(1M) 11373.2KB/sec 11499.9KB/sec Connection + timeout + buf(1M) 11369.1KB/sec 11378.3KB/sec close ------------------------------------------------------------------------------------ PHP guide ( Connection: close [+ ...] or timeout [+ ...] ) example ( $req = "GET /path HTTP/1.1\r\nHost: hostname\r\nConnection: close\r\n\r\n"; $timeout = array('sec'=>0,'usec'=>500000); $sock = socket_create(...); socket_set_option($sock,...,SO_RCVTIMEO,$timeout); // some recommend socket_connect(...); socket_write($sock,$req); while($buf = socket_read($sock,1048576)) { $rbuf .= $buf; ... } socket_close($sock); ) 3. client non-blocking (socket) benchmark ------------------------------------------------------------------------------------ clinet server KeepAlive On server KeepAlive Off HTTP header ------------------------------------------------------------------------------------ NA(socket_read) 11352.4KB/sec CLOSE_WAIT* Connection CLOSE_WAIT* CLOSE_WAIT* close timeout 11343.1KB/sec CLOSE_WAIT* buf(1M) 11361.0KB/sec CLOSE_WAIT* Connection + timeout CLOSE_WAIT* CLOSE_WAIT* close Connection + buf(1M) CLOSE_WAIT* CLOSE_WAIT* close timeout + buf(1M) 11359.1KB/sec CLOSE_WAIT* Connection + timeout + buf(1M) CLOSE_WAIT* CLOSE_WAIT* close ------------------------------------------------------------------------------------ PHP guide ( buf check [+ ...] ) example ( $req = "GET /path HTTP/1.1\r\nHost: hostname\r\nConnection: close\r\n\r\n"; $timeout = array('sec'=>0,'usec'=>500000); $sock = socket_create(...); socket_set_option($sock,...,SO_RCVTIMEO,$timeout); // some recommend socket_connect(...); socket_write($sock,$req); socket_set_nonblock($sock); // set to non-blocking mode $stream = array($sock); while(@socket_select($stream,$write=NULL,$except=NULL,0,500000) !== FALSE) { if(!in_array($sock,$stream)) break; if($buf = @socket_read($sock,1048576)) { $rbuf .= $buf; ... } else break; // good idea, EOF, buf check } socket_close($sock); ) 4. client non-blocking buf check (socket) benchmark ------------------------------------------------------------------------------------ clinet server KeepAlive On server KeepAlive Off HTTP header ------------------------------------------------------------------------------------ NA(socket_read) 10870.7KB/sec 11455.9KB/sec Connection 11488.1KB/sec 11481.9KB/sec close timeout 10869.7KB/sec 11165.4KB/sec buf(1M) 10872.9KB/sec 11494.5KB/sec Connection + timeout 10903.7KB/sec 11496.6KB/sec close Connection + buf(1M) 11500.6KB/sec 11500.2KB/sec close timeout + buf(1M) 10880.3KB/sec 11399.8KB/sec Connection + timeout + buf(1M) 11500.1KB/sec 11498.4KB/sec close ------------------------------------------------------------------------------------ PHP guide ( buf check [+ ...] ) example ( same as above example ) EOF