Introduction Minimize the use of synchronization in servlets. Because servlets are multi-threaded, synchronization of the major code path can seriously and adversely affect performance. Recommendation Servlets are multithreaded. Servlet-based applica…

http://www.onjava.com/pub/a/onjava/2001/05/30/optimization.htmlComparing the performance of LinkedLists and ArrayLists (and Vectors) (Page last updated May 2001, Added 2001-06-18, Author Jack Shirazi, Publisher OnJava). Tips: ArrayList is faster than…

[root@ftp:/root] > fdisk -l Disk /dev/sda: 53.7 GB, 53687091200 bytes, 104857600 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk label type: d…

Writing thread-safe code is managing access to state and in particular to shared, mutable state. Object's state is its data, stored in state variables such as instance or static fields. Whether an object needs to be thread-safe depends on whether it…

If you write Web applications in Java, the servlet is your best friend. Whether you write Java ServerPages (JSP) or plain servlets, you are both at the servlet's mercy and the lucky recipient of what the servlet has to offer. So let's look closer at…

转自:http://www.ciscopress.com/articles/article.asp?p=705533&seqNum=6 Correlating Timebases Using RTCP The RTCP protocol specifies the use of RTCP packets to provide information that allows the sender to map the RTP domain of each stream into a common…

This content is part of the series: Java theory and practice A brief history of garbage collection Anatomy of a flawed microbenchmark Are all stateful Web applications broken? Be a good (event) listener Building a better HashMap Characterizing thread…

http://embarcadero.newsgroups.archived.at/public.delphi.rtl/201112/1112035763.html > Hi,>> What is the difference between these two definitions:>>  TThreadMethod = procedure of object;>  TThreadProcedure = reference to procedure;>>…

http://stackoverflow.com/questions/28715625/is-it-safe-to-use-field-inside-and-outside-synchronized-block Is it safe to use field inside and outside synchronized block? 问题: Background Our app sends emails which are queued in a database table. We've h…

Why thread pools? Many server applications, such as Web servers, database servers, file servers, or mail servers, are oriented around processing a large number of short tasks that arrive from some remote source. A request arrives at the server in som…