Following in the format of bug 939137, we should also dump memory stat for BC. Since 99% of the time we care about the main process, only dump for the main process in BC for now. Should also print resident in addition to vsize and maximum contiguous VM block.

Cargo culting all the stuff about the plain mochitest harness. No idea what the steps are to ensuring that the new MemoryStats.js file gets loaded in the right places, so please check that for me.

Comment on attachment 833415 [details] [diff] [review] wip Flipping review to ted for the harness stuff.

Try looks good: https://tbpl.mozilla.org/?tree=Try&rev=21f3282d636e

Viewer is here: http://people.mozilla.org/~sguo/mochimem/

(In reply to Shu-yu Guo [:shu] from comment #4) > Viewer is here: http://people.mozilla.org/~sguo/mochimem/ Woah, that's awesome. There are a few places in bc where contiguous memory drops, though nothing as dramatic as M2.

Comment on attachment 833415 [details] [diff] [review] wip Review of attachment 833415 [details] [diff] [review]: ----------------------------------------------------------------- I like putting everything into MemoryStats.js; I'll have to use that for my upcoming DMD/about:memory stuff. ::: testing/mochitest/tests/SimpleTest/MemoryStats.js @@ +13,5 @@ > +var MEM_STAT_SUPPORTED = 2; > + > +MemoryStats._hasMemoryStatistics = {} > +MemoryStats._hasMemoryStatistics.vsize = MEM_STAT_UNKNOWN; > +MemoryStats._hasMemoryStatistics.resident = MEM_STAT_UNKNOWN; Please use residentFast; .resident has poor behavior on OS X.

remote: https://hg.mozilla.org/integration/mozilla-inbound/rev/e889f242bb58