MacOS – How to find out which Safari tab is using massive memory

macosmemoryperformancesafari

As described in my other question, Safari on OS X 10.6. is causing me massive problems (with my way of working like having many tabs in Safari open for a long time).

I just realized that after closing some (few!) of the many open tabs, instantly

  • it became quiet – the cooling fan of the macbook was not spinning any more
  • and I had >1 GB more free RAM (which is a lot, as I have only 3 GB in total)!!

It seems, that like very often in real life, Pareto's law applies:
20% of my open tabs might consume 80% of the ressources!

So my question:

  • is there a way to identify those few tabs which cause safari to consume hardware ressources like crazy without closing them – maybe by analyzing the Safari Web Content process?

Best Answer

Open the Activity monitor in Utility folder.

Sort by name

View by memory usage

You should see individual Safari pages memory consumption.

enter image description here

By hovering pointer over one will show the web site name.

The memory consumption will depend on the web site it self, its design, the complexity, and multimedia usage.

Related Question