Working with event trees/profiling

[ch...@jumis.com]

Would Sky work as a stash to analyze profiler output?

The data is just: identifier, start/stop, timestamp.

Example (from Java):

org/apache/log4j/Logger <clinit> start 1378616577391

org/apache/log4j/Logger class$ start 1378616577391

org/apache/log4j/Logger class$ end 1378616577391

org/apache/log4j/Logger <clinit> end 1378616577391

org/apache/log4j/Logger getLogger start 1378616577391

org/apache/log4j/Logger <init> start 1378616577394

org/apache/log4j/Logger <init> end 1378616577394

org/apache/log4j/Logger <init> start 1378616577398

org/apache/log4j/Logger <init> end 1378616577398

org/apache/log4j/Logger getLogger end 1378616577398

That's a bit verbose -- one of the reasons I'd like to use Sky (far from a primary reason, but it's come up) is that it could easily handle a very verbose dump, letting me run some queries against the data to subsequently turn down the verbosity -- e.g., only log entries that cost more than 5ms at least 10% of the time.

[Ben Johnson]

Charles-

I don't see why you couldn't do profiling with Sky. One problem you might run into is that Sky can get slower as it gets really long timelines for a single object. Let me know if you try it out. I'm curious to know if it works for you.

Ben