Ruby

How many objects does a Rails request allocate? Here are Twitter's numbers:

• API: 22,700 objects per request
• Website: 67,500 objects per request
• Daemons: 27,900 objects per action

I want them to be lower. Overall, we burn 20% of our front-end CPU on garbage collection, which seems high. Each process handles ~29,000 requests before getting killed by the memory...

I've released Scribe 0.1, a Ruby client for the Scribe remote log server.

sudo gem install scribe

Usage is simple:

client = Scribe.new
client.log("I'm lonely in a crowded room.", "Rails")

Documentation is here.

about scribe

The primary benefit of Scribe over something like syslog-ng is increased scalability, because of Scribe's fundamentally distributed architecture. Scribe also does away with the...

We recently migrated Twitter from a custom Ruby 1.8.6 build to a Ruby Enterprise Edition release candidate, courtesy of Phusion. Our primary motivation was the integration of Brent's MBARI patches, which increase memory stability.

Some features of REE have no effect on our codebase, but we definitely benefit from the MBARI patchset, the...

One of the hardest gems to install is no more. It's now easy to install!

Memcached 0.15 features:

• Update to libmemcached 0.31.1
• Bundle libmemcached itself with the gem (antifuchs)
• UDP connection support
• Unix domain socket support (hellvinz)
• AUTO_EJECT_HOSTS bugfixes (mattknox)

Install with gem install memcached. Since libmemcached is bundled in, there are no longer any dependencies.

on coordination