I have a NodeJS application running on a k8s pod. The actual size of the pod is 2GB, but in environment variables, we set this value to 4GB --max-old-space-size=4096 (which will not be true in my case – for some tenants we do allocate 4GB but most pods have 2GB).
In the profiling logs of chrome (–prof) option with a webpage, a majority of ticks is consumed by _pthread_cond_timedwait function in C++.
The method works clearly with integer numbers, e.g.
OSR optimization will be triggered when a loop is executed enough times. Marking and triggering an optimization task will occur in JumpLoop handler. Two questions about OSR in V8:
When concurrency optimization is triggered, a new optimization job will be dispatched to a child-thread to complete.
Web development in a dynamic language (JavaScript) on a VM that is incredibly fast (V8). It is much faster than Ruby, Python, or Perl.
I try to do some nodejs profiling using Linux perf_events as described by Brendan Gregg here.
A previous poster asked Function.bind vs Closure in Javascript : how to choose?
A new stable release of Node.js (0.12) has landed recently with an upgraded Google’s v8 JavaScript engine, v3.28.73.
I have written a very simple benchmark:
