Panduan di bawah mungkin tidak komplit, tapi semoga berguna untuk starting point dan membangkitkan inspirasi tentang bagaimana berkencan dengan Slackware. Supaya tidak tergesa saya bagi jadi 2 tulisan .

Novell lessens Linux push for Intelligent Workload Management strategy

OpenLogic offers code scanning and compliance, community Linux support

DotNetNuke rides the explosion of open source on .NET for app development, WCM

Meanwhile The 451 Group#8217;s team of analysts also cover open source related vendors in their respective coverage areas, often in conjunction with CAOS analysts. For example:

Google#8217;s online channel for smartphones changes little in terms of market dynamics

JasperSoft eyes the enterprise with latest commercial open source BI suite

xTuple#8217;s open source ERP attracts more manufacturers, strikes chord with distributors

Gluster targets virtualization, unstructured data with new clustered storage platform

eZ Systems gears up for growth with new funding and new CEO

Additionally, we also provide reports assessing the strategies of proprietary/mixed source vendors towards open source. Examples include:

JetBrains has an open-source IDEA that could expand its profile

Day Software aims to become the patron saint of open source Web content management

Microsoft#8217;s new position reflects changing attitude toward open source

Putting Oracle#8217;s open source moves in perspective

SAP is learning to give and take with open source

In addition to our vendor-centric MIS output, open source also regularly makes an appearance in our reports assessing wider industry trends. For example:

Open source users voice concerns over Oracle#8217;s acquisition of MySQL

#8216;Vendor wars#8217; push challenges, opportunity to HPC and its enterprise outlook

Unpaid community Linux serving as foundation for provider and private clouds

Open source and cloud computing ? a match made in heaven?

451 TechDealmaker
451 Group analysts follow open source-related M#038;A in their coverage areas, again often working with the CAOS analsyst. Examples include:

VMware grows cloud stack, sends message with Zimbra buy

Terracotta acquires Quartz, adding job scheduling to Java-caching lineup

Pentaho snags LucidEra assets in bid to give analytics mainstream appeal

While we also provide reports assessing the prospects of potential acquirers and targets alike. For example:

EC concerns over Oracle-Sun deal center on MySQL

Will Red Hat have to buy to meet aggressive growth targets?

Further acquisitions could boost Novell#8217;s Linux business, indirectly

And again, open source makes an appearance in our reports assessing wider industry trends. For example:

Could an open source project survive a hostile acquisition?

How will recent moves by Intel and Google shake up the embedded OS space?

Opportunities for open source M#038;A in 2009

Will code scanning and analysis get large vendors shopping?

As you see InnoDB-plugin is doing much better here, it allows to utilize multiple IO threads,
which as we saw ( http://www.mysqlperformanceblog.com/2010/01/11/fusionio-320gb-mlc-benchmarks/ ) is necessary to get most throughput from FusionIO.
Also you may see from graph some waves for InnoDB-plugin. Here we observe innodb_adaptive_flushing in action (which is ON by default), and I think innodb_adaptive_flushing in InnoDB-plugin is not quite balanced, it may do overaggressive flushing, when it is not necessary.
But looking on CPU stats (see graph later), I guess InnoDB-plugin spends most time in buffer_pool mutex, contention here is not fully resolved yet in InnoDB-plugin.
Now, let#8217;s take XtraDB. In additional to multiple IO threads, we have patch to decrease contention on buffer_pool mutex, plus separate purge thread. Also we use different adaptive_checkpoint algorithm.
The results are:

So I guess buffer_pool improvements play here for XtraDB, and looking on summary result:

InnoDB 9439.316 NOTPM
InnoDB-plugin-1.0.6 15299.333 NOTPM
XtraDB-1.0.6-9 26160.551 NOTPM

InnoDB-plugin is 1.6x times better InnoDB, and XtraDB is 1.7x times better InnoDB-plugin.
Now on CPU usage and disk utilization.
Disk throughput:

CPU (user) usage:

Even with improvements, XtraDB performs less 150MB/s in disk writes (from benchmarks we
saw FusionIO can do much more) and with 45-50% of idle CPU.
I assume we still see significant contentions inside XtraDB, and there big room for improvements. As for InnoDB-plugin, I#8217;d wish InnoDB team makes some actions on buffer_pool mutex problem.
Finally I wanted to check what if we put innodb transactional logs and system tablespace on FusionIO also, there is graph for that:

It is not so bad, with final result 23038.283 NOTPM, it is only about 12% worse than with logs on separate partition.
And to make reference point, I run the same but with all files on RAID10 with regular disks,
the graph is there:

with final result: 2873.783 NOTPM ( about 88% worse than all files on FusionIO)
To summarize

MySQL InnoDB/InnoDB-plugin/XtraDB is not fully able to utilize throughput of FusionIO. XtraDB is doing better job with internal contention, but much more can be done.
Still you can have very impressive performance improvement in IO-intensive or IO-bound workloads. You may want to use InnoDB-plugin or XtraDB to get better results.

Putting logs on separate partition may be good idea, but only if you have possibility to do that. Making special setup for that may be not worth improvements

Employ testers.
Developers have a tendency to test their code only with expected data. Testers, on the other hand, aren?t developers themselves; instead, they will use data that you don?t expect and find bugs that your users might otherwise experience.

Hiring testers is a tough sell in many development teams, especially small ones. It is possible to have testers that have other functions ? that is, they might be in another department or moonlight as testers. But with teams larger than 5 developers, having a full time tester is a crucial component of good development practices.

Write unit tests.
Every developer makes mistakes at some point. Having unit tests in place will help find these mistakes by showing you where a class breaks. It makes refactoring easier as well, since you can refactor and know that if your unit tests pass, there?s a good chance that you did it properly.

Unit testing should be built into the process of code development from the beginning of a project. However, if you?re starting from someone else?s project and the project doesn?t have unit tests already, simply institute a process of fixing bugs after you?ve written a unit test that identifies the bug. Eventually you?ll have unit tests for most of the application.

Write functional tests.
Unit tests are great, but they?re not enough. Knowing that one function takes an array and creates an object is fine, but what happens with the next function, and the one after that? Introducing functional tests: testing against expected behavior.

There?s a subtle difference between these two concepts. Unit tests test a specific component of the code: a single method, function, or clause. Functional testing, on the other hand, tests expected behavior: does clicking that button actually result in a refreshed page? Does my controller actually invoke the action properly? More than one method might be acted upon with functional testing.

A lot of this testing is done by the testers; however with applications like Selenium you can conduct some automated functional tests. On a small team that doesn?t have testers, or on a large team where there might be a challenged set of resources, automated functional tests can help reduce the testing burden.