Posted by Coder.
Results > Posts Filed Under > Best practices
Nov
2
Posted by Coder.
Oracle Enterprise Manager Java Application Diagnostic Expert (JADE)
Oracle Enterprise Manager Java Application Diagnostic Expert (JADE) improves the availability, performance and provides in-depth diagnostics for Java applications with low overhead. It enables:
1. Production diagnostics with no application instrumentation, saving time in reproducing problems
2. Visibility into Java activity including in-flight transactions, allowing administrators to proactively identify issues rather than diagnosing after-the-fact (application hangs, crashes, memory leaks, locks)
3. Tracing of transactions from Java to Database and vice-versa, enabling faster resolution of problems that …
Oct
4
Posted by Coder.
Nati Shalom’s Blog: Why most large-scale Web sites are not written in Java
…similar solutions for addressing the scalability challenges:
On the Data Tier we see the following:
1. Adding a caching layer to take advantage of memory resources availability and reduce I/O overhead
2. Moving from a database-centric approach to partitioning, aka shards
On the Business Logic Tier:
3. Adding parallelization semantics to the application tier (e.g., MapReduce)
4. Moving to scale-out application models to achieve linear scalability
5. Moving away from the classic two-phase commit and …
Nov
28
Posted by Coder.
Identifying MySQL slow queries | MDLog:/sysadmin
… steps in optimizing and tuning mysql is to identify the queries that are causing problems. How can we find out what queries are taking a long time tocomplete? How can we see what queries are slowing down the mysql server? Mysql has the answer for us and we only need to know where to look for it…
May
6
Posted by Coder.
Performance Tuning Best Practices for MySQL – Google Video
…where to best focus your attention when tuning the performance of your applications and database servers, and how to effectively find the “low hanging fruit” on the tree of bottlenecks. It’s not rocket science, but with a bit of acquired skill and experience, and of course good habits, you too can do this magic! [The talk is delivered by] Jay Pipes [who] is MySQL’s Community Relations Manager for North America.
Feb
21
Posted by coder.
ACM Queue – High-Performance Team – Does your development team have a high-performance mind-set?
If you want to keep producing high-performance software, you must be able to run reproducible, comparable performance tests. Ideally, you’ll have dedicated, standard hardware on which to run these tests; this should be representative of, if not directly comparable with, what your customers run in production. You’ll run a basic set of performance tests as part of your release cycle, plus more comprehensive benchmarks as required.So what …
Feb
10
Posted by coder.
Sun Dialogue Programs
(Q): If you have to pick top 10 things that you must monitor on any server to look for performance and/or scalability issues…what would they be?
Richard McDougall (A): Off the top of my head, in no particular order:
CPU: Check idle time and run queue length.
If there’s a CPU bottleneck, check if it’s an application or kernel CPU utilization issue with mpstat: high percentages of users indicate it’s an application issue. High sys may point to high network load …