tools/profiler/tests/test_enterjit_osr_disabling.js

Tue, 06 Jan 2015 21:39:09 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 06 Jan 2015 21:39:09 +0100
branch
TOR_BUG_9701
changeset 8
97036ab72558
permissions
-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

michael@0 1 function run_test() {
michael@0 2 let p = Cc["@mozilla.org/tools/profiler;1"];
michael@0 3 // Just skip the test if the profiler component isn't present.
michael@0 4 if (!p)
michael@0 5 return;
michael@0 6 p = p.getService(Ci.nsIProfiler);
michael@0 7 if (!p)
michael@0 8 return;
michael@0 9
michael@0 10 do_check_true(!p.IsActive());
michael@0 11
michael@0 12 p.StartProfiler(100, 10, ["js"], 1);
michael@0 13 // The function is entered with the profiler enabled
michael@0 14 (function (){
michael@0 15 p.StopProfiler();
michael@0 16 let n = 10000;
michael@0 17 while (--n); // OSR happens here with the profiler disabled.
michael@0 18 // An assertion will fail when this function returns, if the
michael@0 19 // SPS stack was misbalanced.
michael@0 20 })();
michael@0 21 }

mercurial