tailieunhanh - Pro PHP Application Performance Tuning PHP Web Projects for Maximum Performance phần 2

tìm "", một yêu cầu để tìm thư mục nhà của người sử dụng. Để sử dụng lớp File, bạn sẽ phải bao gồm nhập khẩu đối với ". *" trong tập tin java của bạn. Để hiển thị hộp thoại kết hợp với JFileChooser, một chương trình phải thực hiện một lời gọi của hình thức | CHAPTER 1 BENCHMARKING TECHNIQUES Flag Description -H custom-header Sends customized valid headers along with the request in the form of a field-value pair -i Performs a HEAD request instead of the default GET request -k Turns on Keep-Alive feature. Allows multiple requests to be satisfied with a single HTTP session. This feature is off by default. -n requests Total number of requests to perform -p POST-file Path to file containing data used for an HTTP POST request. Content should contains key value pairs separated by . -P username password Base64 encoded string. String contains basic authentication username and password separated by . -q Hides progress output when performing more than 100 requests -s Uses an https protocol instead of the default http protocol not recommended -S Hides the median and standard deviation values -t timelimit When specified the benchmark test will not last longer than the specified value. By default there is no time limit. -v verbosity-level Numerical value 2 and above will print warnings and info 3 will print HTTP response codes 4 and above will print header information. -V Displays the version number of the ab tool -w Prints the results within a HTML table -x table-attributes String representing HTML attributes that will be placed inside the table tag when -w is used -X proxy port Specifies a Proxy server to use. Proxy port is optional. -y tr-attributes String representing HTML attributes that will be placed inside the tr tag when -w is used -z td-attributes String representing HTML attributes that will be placed inside the td tag when -w is used 11 CHAPTER 1 BENCHMARKING TECHNIQUES For our goal of optimizing our PHP scripts we need to zero in on only a handful of options. These are the following n Number of requests to simulate c Number of concurrent requests to simulate t Length of time to conduct simulation We ve run a simulation using the n flag after initially installing ab. Now let s use the other flags and see how our initial