127067 2014-01-15 14:57:05 -0800 Remove ENABLE_GLOBAL_FASTMALLOC_NEW 2016-02-02 19:02:58 -0800 1 1 1 Unclassified WebKit New Bugs 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED P2 Normal --- 153812 1 andersca andersca benjamin cmarcelo commit-queue ggaren slewis oldest_to_newest 968480 0 andersca 2014-01-15 14:57:05 -0800 Remove ENABLE_GLOBAL_FASTMALLOC_NEW 968483 1 221309 andersca 2014-01-15 15:01:52 -0800 Created attachment 221309 Patch 968486 2 221309 ggaren 2014-01-15 15:07:04 -0800 Comment on attachment 221309 Patch r=me Before landing, I think we need to test performance and make sure we're not missing any significant WTF_MAKE_FAST_ALLOCATED declarations. Would also be nice just to set a breakpoint / add a shim method and print out all allocations in WebKit that miss FastMalloc, and drive to 0. 968487 3 ggaren 2014-01-15 15:07:39 -0800 > Would also be nice just to set a breakpoint / add a shim method and print out all allocations in WebKit that miss FastMalloc, and drive to 0. To clarify, I don't think we need to do this task before landing -- I just think it would be fun! 968493 4 andersca 2014-01-15 15:22:07 -0800 I'm going to hold off on landing this until some PLT regressions are tracked down. 971539 5 slewis 2014-01-24 00:17:43 -0800 Haven't looked at memory numbers but the PLT shows this to be a significant improvement. :) 971654 6 ggaren 2014-01-24 10:50:15 -0800 > Haven't looked at memory numbers but the PLT shows this to be a significant improvement. :) Wat? What are the exact numbers? I can't imagine why this might be a speedup. 973178 7 slewis 2014-01-28 15:50:13 -0800 Ran again with production roots and the patch is still slightly faster, but nothing to write home about. A quick check with membuster shows that in the user scenario ~15 MB is now allocated with System Malloc where it used to be allocated with FastMalloc. Given that I'll want to check how memory returning and fragmentation is affected. 973184 8 andersca 2014-01-28 15:54:55 -0800 (In reply to comment #7) > Ran again with production roots and the patch is still slightly faster, but nothing to write home about. My guess is that it's just variance. > A quick check with membuster shows that in the user scenario ~15 MB is now allocated with System Malloc where it used to be allocated with FastMalloc. Given that I'll want to check how memory returning and fragmentation is affected. This is interesting. Is there any way to compare the heaps to see what data we're now allocating with System Malloc (and fix the code so it uses fastMalloc instead)? 973196 9 slewis 2014-01-28 16:07:16 -0800 We could run membuster with malloc history enabled and write a script to compare the two and dump the differences. 981715 10 andersca 2014-02-17 16:52:11 -0800 Turns out it's really easy to see where we call operator new() vs fastMalloc in Instruments. With the changes I landed in http://trac.webkit.org/projects/webkit/changeset/163757 we now allocated pretty much everything with fastMalloc (tested loading the WK1 spec). I'm going to land this. 981729 11 221309 commit-queue 2014-02-17 17:27:06 -0800 Comment on attachment 221309 Patch Clearing flags on attachment: 221309 Committed r164261: <http://trac.webkit.org/changeset/164261> 981730 12 commit-queue 2014-02-17 17:27:09 -0800 All reviewed patches have been landed. Closing bug. 221309 2014-01-15 15:01:52 -0800 2014-02-17 17:27:05 -0800 Patch bug-127067-20140115150153.patch text/plain 9914 andersca U3VidmVyc2lvbiBSZXZpc2lvbjogMTYyMDg4CmRpZmYgLS1naXQgYS9Tb3VyY2UvSmF2YVNjcmlw dENvcmUvQ2hhbmdlTG9nIGIvU291cmNlL0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwppbmRleCAz MzIzY2FkZDc2NDM5Njc5NzMyZmE1NTUwNmIxZWEyYzFjMDBlNjUxLi4zNzNkNThjMmRmMmE5ZmE5 ZjIzMjllOTA4N2Y2MWYxMThjMWU3NDIyIDEwMDY0NAotLS0gYS9Tb3VyY2UvSmF2YVNjcmlwdENv cmUvQ2hhbmdlTG9nCisrKyBiL1NvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cKQEAgLTEs MyArMSwxMiBAQAorMjAxNC0wMS0xNSAgQW5kZXJzIENhcmxzc29uICA8YW5kZXJzY2FAYXBwbGUu Y29tPgorCisgICAgICAgIFJlbW92ZSBFTkFCTEVfR0xPQkFMX0ZBU1RNQUxMT0NfTkVXCisgICAg ICAgIGh0dHBzOi8vYnVncy53ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9pZD0xMjcwNjcKKworICAg ICAgICBSZXZpZXdlZCBieSBOT0JPRFkgKE9PUFMhKS4KKworICAgICAgICAqIHBhcnNlci9Ob2Rl cy5oOgorCiAyMDE0LTAxLTEwICBNYXJrIEhhaG5lbmJlcmcgIDxtaGFobmVuYmVyZ0BhcHBsZS5j b20+CiAKICAgICAgICAgQ29weWluZyBzaG91bGQgYmUgZ2VuZXJhdGlvbmFsCmRpZmYgLS1naXQg 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