187764 2018-07-18 09:45:56 -0700 Memory leak when using requestAnimationFrame 2018-07-26 08:25:21 -0700 1 1 1 Unclassified WebKit JavaScriptCore Safari Technology Preview PC Windows 10 NEW P2 Blocker --- 1 plamend webkit-unassigned simon.fraser oldest_to_newest 1443029 0 345254 plamend 2018-07-18 09:45:56 -0700 Created attachment 345254 a minimal example of a leaking issue It seems that if I have a lambda function which only assigned a value to a global variable and pass those lambda function to requestAnimationFrame the heap size growing all the time. The growing of the heap depends on the size of the value that I want to assign. I am using "safari-technology-preview-34" also If I pass an empty lambda function to "requestAnimationFrame" the "WeakSet::addAllocator" add a new block every time. 1444017 1 simon.fraser 2018-07-20 21:22:48 -0700 Safari Tech Preview is now at version 61. Does this still reproduce? 1445334 2 plamend 2018-07-26 00:11:10 -0700 unfortunately, it is no trivial for me to switch to STP 61 1445421 3 simon.fraser 2018-07-26 08:25:21 -0700 Using the web inspector's heap snapshot with your test case, I can't see any memory growth with your test case in STP 61. How are you measuring heap growth? 345254 2018-07-18 09:45:56 -0700 2018-07-18 09:45:56 -0700 a minimal example of a leaking issue leak.html text/html 580 plamend PCFET0NUWVBFIGh0bWw+CjxodG1sPgogIDxoZWFkPgogICAgPHNjcmlwdD4KICAgICAgbGV0IGRh dGFIYW5kbGU7CgogICAgICBjb25zdCB1cGRhdGUgPSAoKSA9PiB7CiAgICAgICAgZGF0YUhhbmRs ZSA9CiAgICAgICAgICAgIHsKICAgICAgICAgICAgICAiX2lkIjogIjViMzUwYWM3MTA0ZTVmZjA1 Yzg4NjAwZCIsCiAgICAgICAgICAgICAgImd1aWQiOiAiNTE3MWYxZjUtYmM2YS00Nzg2LTgxNDkt NjBlYWJkMTY2NzUxIiwKICAgICAgICAgICAgICAiYmFsYW5jZSI6ICIkMSw4MTEuMDgiLAogICAg ICAgICAgICAgICJwaWN0dXJlIjogImh0dHA6Ly9wbGFjZWhvbGQuaXQvMzJ4MzIiLAogICAgICAg ICAgICAgICJncmVldGluZyI6ICJIZWxsbywgLi4uLi4uLi4uLiEgWW91IGhhdmUgNCB1bnJlYWQg bWVzc2FnZXMuIiwKICAgICAgICAgICAgICAiZmF2b3JpdGVGcnVpdCI6ICJiYW5hbmEiCiAgICAg ICAgICAgIH07CiAgICAgICAgcmVxdWVzdEFuaW1hdGlvbkZyYW1lKHVwZGF0ZSk7CiAgICAgIH07 CiAgICAgIHVwZGF0ZSgpOwogICAgPC9zY3JpcHQ+CiAgPC9oZWFkPgogIDxib2R5PgogIDwvYm9k eT4KPC9odG1sPg==