SpiderMonkey 98 introduced a size heuristic for the nursery GC region
(https://phabricator.services.mozilla.com/D136637). As this heuristic
uses a wall-clock time duration, it results in a severe performance
regression on slower systems for our use case.
This commit adds a workaround to turn off that heuristic, by telling
SpiderMonkey that a "page load" (something which doesn't have a meaning
in the context of pyrogenesis) is in progress, as that heuristic is
disabled for page loads.
Co-Authored by: Ralph Sennhauser <ralph.sennhauser@gmail.com>
Fixes#7714
(cherry picked from commit 11dd480b67)
Signed-off-by: Itms <itms@wildfiregames.com>
ef9ea478ec