Just trying out one more combination
Just trying out one more combination

Summary:
It seems it is not std::bind which is slow but the construction of
std::function from std::bind that is slow.

Test Plan: ran benchmarks

Reviewed By: delong.j@fb.com

FB internal diff: D581967

cppfool/folly,stonegithubs/folly,chjp2046/folly,wildinto/folly,KSreeHarsha/folly,alexst07/folly,bobegir/folly,romange/folly,upsoft/folly,SeanRBurton/folly,cppfool/folly,bobegir/folly,Orvid/folly,Orvid/folly,charsyam/folly,sakishum/folly,fw1121/folly,guker/folly,leolujuyi/folly,brunomorishita/folly,guker/folly,theiver9827/folly,raphaelamorim/folly,facebook/folly,Eagle-X/folly,CJstar/folly,brunomorishita/folly,Hincoin/folly,nickhen/folly,alexst07/folly,unmeshvrije/C--,floxard/folly,rklabs/folly,nickhen/folly,ykarlsbrun/folly,KSreeHarsha/folly,tempbottle/folly,stonegithubs/folly,romange/folly,raphaelamorim/folly,arg0/folly,bowlofstew/folly,KSreeHarsha/folly,kernelim/folly,gavioto/folly,brunomorishita/folly,rklabs/folly,zhiweicai/folly,sakishum/folly,gaoyingie/folly,tomhughes/folly,doctaweeks/folly,lifei/folly,raphaelamorim/folly,tomhughes/folly,ykarlsbrun/folly,charsyam/folly,gaoyingie/folly,bowlofstew/folly,loversInJapan/folly,gavioto/folly,raphaelamorim/folly,loversInJapan/folly,tomhughes/folly,bikong2/folly,project-zerus/folly,loversInJapan/folly,SeanRBurton/folly,shaobz/folly,gaoyingie/folly,fw1121/folly,hongliangzhao/folly,stonegithubs/folly,cppfool/folly,leolujuyi/folly,SeanRBurton/folly,alexst07/folly,clearlinux/folly,Eagle-X/folly,wildinto/folly,hongliangzhao/folly,clearlylin/folly,gavioto/folly,clearlinux/folly,upsoft/folly,doctaweeks/folly,mqeizi/folly,facebook/folly,CJstar/folly,theiver9827/folly,lifei/folly,theiver9827/folly,nickhen/folly,cole14/folly,cole14/folly,stonegithubs/folly,xzmagic/folly,CJstar/folly,gavioto/folly,romange/folly,sonnyhu/folly,cppfool/folly,lifei/folly,romange/folly,clearlylin/folly,theiver9827/folly,reddit/folly,KSreeHarsha/folly,colemancda/folly,tempbottle/folly,romange/folly,constantine001/folly,sonnyhu/folly,stonegithubs/folly,constantine001/folly,wildinto/folly,yangjin-unique/folly,cole14/folly,Hincoin/folly,reddit/folly,arg0/folly,ykarlsbrun/folly,reddit/folly,clearlinux/folly,lifei/folly,SammyK/folly,SammyK/folly,SammyK/folly,bowlofstew/folly,ykarlsbrun/folly,yangjin-unique/folly,zhiweicai/folly,PoisonBOx/folly,floxard/folly,upsoft/folly,mqeizi/folly,SeanRBurton/folly,shaobz/folly,colemancda/folly,mqeizi/folly,loverszhaokai/folly,loversInJapan/folly,PPC64/folly,chjp2046/folly,Hincoin/folly,yangjin-unique/folly,chjp2046/folly,guker/folly,unmeshvrije/C--,tomhughes/folly,unmeshvrije/C--,loverszhaokai/folly,leolujuyi/folly,zhiweicai/folly,wildinto/folly,arg0/folly,Eagle-X/folly,nickhen/folly,doctaweeks/folly,cole14/folly,clearlylin/folly,juniway/folly,floxard/folly,reddit/folly,charsyam/folly,facebook/folly,unmeshvrije/C--,clearlylin/folly,sakishum/folly,clearlylin/folly,bsampath/folly,clearlinux/folly,sakishum/folly,renyinew/folly,Orvid/folly,lifei/folly,project-zerus/folly,kernelim/folly,arg0/folly,bowlofstew/folly,Orvid/folly,charsyam/folly,colemancda/folly,clearlinux/folly,sonnyhu/folly,hongliangzhao/folly,PPC64/folly,loverszhaokai/folly,fw1121/folly,Eagle-X/folly,PoisonBOx/folly,fw1121/folly,PPC64/folly,project-zerus/folly,loversInJapan/folly,kernelim/folly,rklabs/folly,facebook/folly,bikong2/folly,alexst07/folly,PoisonBOx/folly,juniway/folly,raphaelamorim/folly,leolujuyi/folly,gavioto/folly,wildinto/folly,sakishum/folly,xzmagic/folly,bsampath/folly,SammyK/folly,bowlofstew/folly,tempbottle/folly,gaoyingie/folly,juniway/folly,Hincoin/folly,kernelim/folly,constantine001/folly,juniway/folly,cppfool/folly,zhiweicai/folly,upsoft/folly,Hincoin/folly,bobegir/folly,brunomorishita/folly,hongliangzhao/folly,project-zerus/folly,bsampath/folly,colemancda/folly,reddit/folly,PoisonBOx/folly,SeanRBurton/folly,unmeshvrije/C--,guker/folly,renyinew/folly,mqeizi/folly,bsampath/folly,brunomorishita/folly,yangjin-unique/folly,chjp2046/folly,yangjin-unique/folly,rklabs/folly,bobegir/folly,shaobz/folly,guker/folly,juniway/folly,arg0/folly,sonnyhu/folly,shaobz/folly,PPC64/folly,tempbottle/folly,bikong2/folly,kernelim/folly,alexst07/folly,unmeshvrije/C--,project-zerus/folly,renyinew/folly,CJstar/folly,rklabs/folly,doctaweeks/folly,renyinew/folly,renyinew/folly,loverszhaokai/folly,shaobz/folly,ykarlsbrun/folly,cole14/folly,theiver9827/folly,facebook/folly,hongliangzhao/folly,sonnyhu/folly,bsampath/folly,CJstar/folly,fw1121/folly,Orvid/folly,KSreeHarsha/folly,floxard/folly,SammyK/folly,leolujuyi/folly,tomhughes/folly,nickhen/folly,upsoft/folly,bobegir/folly,PoisonBOx/folly,loverszhaokai/folly,colemancda/folly,chjp2046/folly,mqeizi/folly,bikong2/folly,constantine001/folly,gaoyingie/folly,tempbottle/folly,xzmagic/folly,floxard/folly,Eagle-X/folly,zhiweicai/folly,PPC64/folly,xzmagic/folly,constantine001/folly,xzmagic/folly,doctaweeks/folly,bikong2/folly