DTrace, node.js and the Robinson Projection

When I first joined Joyent (but four weeks ago!), Ryan was very interested in potentially using DTrace to provide a leaderboard for the [Node Knockout] competition. I got to work, adding USDT probes to node.js. To be fair, this still has some disabled overhead (namely, getting into and out of the node addon that has the true USDT probe), but it’s sufficiently modest to deploy DTrace-enabled nodes in production.

Continue reading at Bryan Cantrill's "The Observation Deck..."



Post written by jacksonwest