As promised, here are more results running memcached on Sun's X2270 (Nehalem-based server). In my previous post, I mentioned that we got 350K ops/sec running a single instance of memcached at which point the throughput was hampered by the scalability issues of memcached. So we ran two instances of memcached on the same server, each using 15GB of memory and tested both 1.2.5 and 1.3.2 versions. Here are the results :

The maximum throughput was 470K ops/sec using 4 threads in memcached 1.3.2. Performance of 1.2.5 was just very slightly lower. At this throughput, the network capacity of the single 10gbe card was reached as the benchmark does a lot of small packet transfers. See my earlier post for a description of the server configuration and the benchmark. At the …

As promised, here are more results running memcached on Sun's X2270 (Nehalem-based server). In my previous post, I mentioned that we got 350K ops/sec running a single instance of memcached at which point the throughput was hampered by the scalability issues of memcached. So we ran two instances of memcached on the same server, each using 15GB of memory and tested both 1.2.5 and 1.3.2 versions. Here are the results :

The maximum throughput was 470K ops/sec using 4 threads in memcached 1.3.2. Performance of 1.2.5 was just very slightly lower. At this throughput, the network capacity of the single 10gbe card was reached as the benchmark does a lot of small packet transfers. See my earlier post for a description of the server configuration and the benchmark. At the …

I decided to give a try to slideshare. So I uploaded the slides from my most recent talks, and will eventually catch up with the old ones. My slides repository is http://www.slideshare.net/datacharmer.

If you are looking for the slides from MySQL Conference 2009, here are the shortcuts:

• MySQL 5.1 Partitions tutorial
• MySQL 5.1 event scheduler
• Boost performance with MySQL 5.1 partitions
• …

I decided to give a try to slideshare. So I uploaded the slides from my most recent talks, and will eventually catch up with the old ones. My slides repository is http://www.slideshare.net/datacharmer.

If you are looking for the slides from MySQL Conference 2009, here are the shortcuts:

• MySQL 5.1 Partitions tutorial
• MySQL 5.1 event scheduler
• Boost performance with MySQL 5.1 partitions
• …

Way back on Monday (at the MySQL Conference and Expo), I gave a full day tutorial on MySQL Cluster. I awoke early in the morning to a “oh ha ha” URL in an IM; but no, it wasn’t jetlag playing tricks with me. Luckily, this didn’t take much (if anything) away from the purpose of the day: teaching people about NDB.

Distracting-and-this-time-really-annoying-thing-of-the-day-2: It seems that O’Reilly had cut back on power this year, and there were no power boards in the room. A full day interactive tutorial, and nowhere to plug in laptops. Hrrm.. Luckily, having over the many years I’ve been speaking at this event, I’ve gotten to …

MySQL 5.4 was released this week at the MySQL conference, and billed as the “community release.” This seemed odd to some of us, and I heard lots of comment on it in the hallways. After all, the release was a surprise; the community didn’t know it was happening.

A source from within Sun, who is familiar with the details and wishes to remain anonymous, told me the story behind the release. I want to say that after this conversation, I fully support the release of 5.4 and I want to praise it generously. It is a great step in lots of right directions! It’s good for everyone. The secrecy was a necessary strategy.

The details must remain a secret, but perhaps someday it’ll be known.

Thank you Sun!

Today I attended the Drizzle Developer Day which took place in the auditorium of the Sun Campus in Santa Clara.

Many of the the Drizzle core hackers as well as several other people interested in the development attended this event, hacking away and discussing various issues. Jeremy Zawodny gave a presentation about Craigslist's needs for Drizzle, Jay Pipes gave an overview over Google's protocol buffers library. I took a number of pictures, which you can find in my …

"Interesting" was probably the most overused word at the MySQL Conference that just ended yesterday. Everyone is waiting to find out more about the Oracle acquisition of Sun. As a community we need to find some synonyms or things will become very tiresome. Personally I vote for intriguing.

Here are slides for my presentations at the MySQL Conference as well as the parallel Percona Performance is Everything Conference. Thanks to everyone to attended as well as to the organizers. You had wonderful ideas and suggestions.

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Files used in conference presentation here: UC2009 presentationI think todays presentation for Perl Stored Procedures for MySQL was quite successful. The audience was quite engaged and asked questions throughout (yes, I invited questions through the talk). I made sure to mention Eric Herman's Java plugin because even though he didn't get time to submit a talk, the work is noteworthy. Sometimes I