Speedup hllRawSum() processing 8 bytes per iteration.
Speedup hllRawSum() processing 8 bytes per iteration.

The internal HLL raw encoding used by PFCOUNT when merging multiple keys
is aligned to 8 bits (1 byte per register) so we can exploit this to
improve performances by processing multiple bytes per iteration.

In benchmarks the new code was several times faster with HLLs with many
registers set to zero, while no slowdown was observed with populated
HLLs.

gilala/redis,JoeWoo/redis,mengzhejin/RedisStudy,nnog/redis,ctripcorp/redis,cloudrain21/redis,sunheehnus/redis,PradheepShrinivasan/redis,iandyh/redis,gaoxianglong/redis,cnbin/redis,wangyikai/redis,saisai/redis,kmiku7/redis,rogerlz/redis,july2993/redis,thomasdarimont/redis,h0x91b/redis,arijitvt/redis,izhoujie/redis,mingyaaaa/redis,LongXQ/redis,huyuezheng/redis,thomasdarimont/redis,roth1002/redis,wbailey5/redis,rouzier/redis,weizijun/redis,timothyohare/3rdPartySrc-redis,mcanthony/redis,seppo0010/redis,csuhawk/redis,blackmady/redis,mcanthony/redis,ituncle/redis,riyan8250/redis,gilala/bjredis,nnog/redis,pcarrier/redis,RepmujNetsik/redis,mengyou0304/redis,h0x91b/redis,rogerchina/redis,MasahikoSawada/redis,healerkx/redis,wbailey5/redis,duanx/redis,ytjiang/redis,universsky/redis,saisai/redis,valdsJohn/redis,mgk/redis,hedisdb/hedis,elkingtonmcb/redis,pkdevbox/redis,soloestoy/redis,supasate/redis,qiyang0221/redis,iandyh/redis,wenxueliu/redis_comment,ouyangkongtong/redis,netroby/redis,citusdata/redis,StevenTsai/redis,hornen/redis,SummonY/redis,badboy/redis,simplestbest/redis,programmecat/redis,xujunhai1991/redis,programmecat/redis,ouyangkongtong/redis,dayuoba/redis,saisai/redis,LongXQ/redis,wprice/redis,clamoriniere1A/redis,tjschuck/redis,xuguruogu/redis,wprice/redis,itugs/redis,4396/redis,Aliceljm1/redis,MasahikoSawada/redis,gilala/bjredis,shreesundara/redis,hedisdb/hedis,rogerlz/redis,gilala/hbjredis,antirez/redis,h0x91b/redis,mattsta/redis,july2993/redis,rogerchina/redis,taoguan/redis,citusdata/redis,jingjidejuren/redis,wbailey5/redis,timothyohare/3rdPartySrc-redis,jasonkying/redis,cnbin/redis,kmiku7/redis,dreamquster/redis,universsky/redis,YuanZhewei/redis,zhiliaoniu/redis,pedigree/redis,valdsJohn/redis,zczhuohuo/redis,abhiklodh/redis,wujf/redis,tanghaodong25/redis,cusspvz/redis,zhcy/redis,soloestoy/redis,yuhc/redis-benchmark-enhanced,SyntaxStacks/redis,colstrom/redis,gilala/bjredis,Soledad89/redis,zhiliaoniu/redis,citusdata/redis,itugs/redis,soloestoy/redis,j0hnma/hszredis,rouzier/redis,YuanZhewei/redis,csuhawk/redis,sunheehnus/redis,rogerchina/redis,supasate/redis,wangyikai/redis,xlzhan/redis,cnbin/redis,wujf/redis,soloestoy/redis,JoeWoo/redis,Aliceljm1/redis,narma/redis,colstrom/redis,gilala/redis,LongXQ/redis,citusdata/redis,valdsJohn/redis,ErikDubbelboer/redis,nuxeh/redis,qiyang0221/redis,weizijun/redis,gilala/hredis,honestme/redis,zhcy/redis,hgl888/redis,ncopa/redis,vincent-vivian-liu/redis,mattsta/redis,linfangrong/redis,GitHubMota/redis,iandyh/redis,itamarhaber/redis,blackmady/redis,iandyh/redis,Sciumo/redis,holstvoogd/redis,timothyohare/3rdPartySrc-redis,mumingv/redis,z-fork/redis,CodeJuan/redis,mengyou0304/redis,roth1002/redis,CodeJuan/redis,july2993/redis,ituncle/redis,weizijun/redis,flashbuckets/redis,seppo0010/rlite-server,sunheehnus/redis,neomantra/redis,CodeJuan/redis,AALEKH/redis,alenslan/redis,holstvoogd/redis,vincent-vivian-liu/redis,SummonY/redis,gilala/hbjredis,soveran/redis,ctripcorp/redis,xujunhai1991/redis,mverrilli/redis,brg-liuwei/redis,jackyan/redis,guker/redis,davidradunz/redis,shining-yang/redis,pmem/redis,mverrilli/redis,seppo0010/rlite-server,Aliceljm1/redis,Sciumo/redis,wbailey5/redis,huyuezheng/redis,programmecat/redis,soveran/redis,YuraLukashik/redis,charsyam/redis,allengaller/redis,a-pavlov/redis,Wangyao14cyy/redis,july2993/redis,mverrilli/redis,yossigo/redis,kaushik94/redis,HeartSaVioR/redis,hornen/redis,brg-liuwei/redis,SummonY/redis,mengyou0304/redis,devaos/redis,OmarQunsul/graph-redis,guker/redis,yossigo/redis,dayuoba/redis,jasonkying/redis,ofirluzon/redis,zczhuohuo/redis,pmem/redis,j0hnma/szredis,xujunhai1991/redis,zguangyu/redis,tjschuck/redis,GitHubMota/redis,simplestbest/redis,shining-yang/redis,netroby/redis,ofirluzon/redis,universsky/redis,PradheepShrinivasan/redis,ncopa/redis,josiahcarlson/redis,honestme/redis,ton31337/redis,badboy/redis,cloudrain21/redis,a-pavlov/redis,xlzhan/redis,charsyam/redis,pcarrier/redis,YongMan/redis,itugs/redis,ton31337/redis,twskipper/redis,nnog/redis,antirez/redis,badboy/redis,YuraLukashik/redis,SyntaxStacks/redis,YongMan/redis,timothyohare/3rdPartySrc-redis,jasonkying/redis,jingjidejuren/redis,oranagra/redis,davidradunz/redis,harrisonfeng/redis,yuhc/redis-benchmark-enhanced,PKRoma/redis,duanx/redis,OmarQunsul/graph-redis,oranagra/redis,arijitvt/redis,takeshineshiro/redis,LongXQ/redis,shining-yang/redis,modulexcite/redis,PKRoma/redis,seandsky/redis,spinlock/redis,kaushik94/redis,francischan714/redis,devaos/redis,jasonkying/redis,thomasdarimont/redis,xlzhan/redis,xujunhai1991/redis,YuraLukashik/redis,neomantra/redis,JoeWoo/redis,tanghaodong25/redis,wprice/redis,charsyam/redis,francischan714/redis,guker/redis,OmarQunsul/graph-redis,h0x91b/redis,riyan8250/redis,SyntaxStacks/redis,jackyan/redis,ofirluzon/redis,StevenTsai/redis,pcarrier/redis,ouyangkongtong/redis,hgl888/redis,taoguan/redis,ituncle/redis,HeartSaVioR/redis,abhiklodh/redis,josiahcarlson/redis,josiahcarlson/redis,hawkchch/redis,jackyan/redis,PradheepShrinivasan/redis,csuhawk/redis,healerkx/redis,xuguruogu/redis,seppo0010/rlite-server,huyuezheng/redis,zhcy/redis,SummonY/redis,saisai/redis,abhiklodh/redis,universsky/redis,kensou97/redis,alenslan/redis,mgk/redis,YuanZhewei/redis,badboy/redis,AplayER/redis,NBSW/redis,shreesundara/redis,Soledad89/redis,netroby/redis,190235047/redis,arijitvt/redis,tellapart/redis,aim-for-better/redis,mumingv/redis,zguangyu/redis,j0hnma/szredis,GrimDerp/redis,izhoujie/redis,Aaron1992/redis,z-fork/redis,rogerlz/redis,healerkx/redis,kaushik94/redis,rouzier/redis,xlzhan/redis,modulexcite/redis,sunheehnus/redis,StevenTsai/redis,alenslan/redis,flashbuckets/redis,pkdevbox/redis,pkdevbox/redis,kensou97/redis,ErikDubbelboer/redis,colstrom/redis,aim-for-better/redis,tanghaodong25/redis,ofirluzon/redis,ErikDubbelboer/redis,flashbuckets/redis,zhiliaoniu/redis,hornen/redis,huyuezheng/redis,wprice/redis,itamarhaber/redis,mingyaaaa/redis,cusspvz/redis,kensou97/redis,twskipper/redis,MasahikoSawada/redis,xuguruogu/redis,tjschuck/redis,Aliceljm1/redis,mgk/redis,4396/redis,CodeJuan/redis,aim-for-better/redis,shining-yang/redis,mumingv/redis,seandsky/redis,twskipper/redis,elkingtonmcb/redis,MOON-CLJ/redis,devaos/redis,duanx/redis,4396/redis,dayuoba/redis,fengshao0907/redis,clamoriniere1A/redis,AALEKH/redis,honestme/redis,Aaron1992/redis,AplayER/redis,AALEKH/redis,yossigo/redis,allengaller/redis,linfangrong/redis,valdsJohn/redis,ipmobiletech/redis,blackmady/redis,atreeyang/redis,zczhuohuo/redis,pedigree/redis,Sciumo/redis,Aaron1992/redis,zhcy/redis,wenxueliu/redis_comment,ytjiang/redis,cusspvz/redis,hornen/redis,YongMan/redis,shreesundara/redis,StevenTsai/redis,spinlock/redis,mingyaaaa/redis,gilala/hredis,simplestbest/redis,oranagra/redis,shreesundara/redis,soveran/redis,linfangrong/redis,neomantra/redis,fengshao0907/redis,riyan8250/redis,ouyangkongtong/redis,qiyang0221/redis,mengzhejin/RedisStudy,Markgorden/redis,simplestbest/redis,Aaron1992/redis,Markgorden/redis,allengaller/redis,riyan8250/redis,GitHubMota/redis,cloudrain21/redis,wenxueliu/redis_comment,JoeWoo/redis,MOON-CLJ/redis,GrimDerp/redis,YuanZhewei/redis,pmem/redis,spinlock/redis,mcanthony/redis,AALEKH/redis,modulexcite/redis,elkingtonmcb/redis,harrisonfeng/redis,seppo0010/redis,xuguruogu/redis,devaos/redis,elkingtonmcb/redis,mengyou0304/redis,NBSW/redis,mumingv/redis,kaushik94/redis,supasate/redis,clamoriniere1A/redis,gilala/hredis,rogerchina/redis,Wangyao14cyy/redis,twskipper/redis,vincent-vivian-liu/redis,takeshineshiro/redis,kmiku7/redis,kensou97/redis,PKRoma/redis,brg-liuwei/redis,gilala/redis,ton31337/redis,honestme/redis,wujf/redis,PradheepShrinivasan/redis,tellapart/redis,ctripcorp/redis,dreamquster/redis,rouzier/redis,pcarrier/redis,AplayER/redis,GrimDerp/redis,j0hnma/szredis,fengshao0907/redis,csuhawk/redis,zhiliaoniu/redis,izhoujie/redis,4396/redis,fengshao0907/redis,ncopa/redis,OmarQunsul/graph-redis,ituncle/redis,nnog/redis,itamarhaber/redis,yuhc/redis-benchmark-enhanced,pmem/redis,ctripcorp/redis,francischan714/redis,Markgorden/redis,wangyikai/redis,yuhc/redis-benchmark-enhanced,seppo0010/redis,mcanthony/redis,tellapart/redis,mingyaaaa/redis,oranagra/redis,nuxeh/redis,Wangyao14cyy/redis,hgl888/redis,allengaller/redis,gaoxianglong/redis,ytjiang/redis,netroby/redis,ofirluzon/redis,francischan714/redis,Soledad89/redis,seppo0010/redis,wujf/redis,zguangyu/redis,nuxeh/redis,programmecat/redis,davidradunz/redis,Soledad89/redis,jingjidejuren/redis,gilala/hredis,spinlock/redis,dayuoba/redis,ytjiang/redis,190235047/redis,cnbin/redis,HeartSaVioR/redis,harrisonfeng/redis,jackyan/redis,RepmujNetsik/redis,healerkx/redis,janekmi/redis,oranagra/redis,mengzhejin/RedisStudy,gilala/hbjredis,janekmi/redis,pedigree/redis,PKRoma/redis,davidradunz/redis,holstvoogd/redis,pkdevbox/redis,NBSW/redis,gaoxianglong/redis,qiyang0221/redis,cloudrain21/redis,dreamquster/redis,izhoujie/redis,harrisonfeng/redis,MasahikoSawada/redis,atreeyang/redis,antirez/redis,wangyikai/redis,gilala/hbjredis,mattsta/redis,antirez/redis,abhiklodh/redis,zczhuohuo/redis,ton31337/redis,weizijun/redis,z-fork/redis,YongMan/redis,RepmujNetsik/redis,roth1002/redis,duanx/redis,supasate/redis,jingjidejuren/redis,cusspvz/redis,Markgorden/redis,taoguan/redis,charsyam/redis,AplayER/redis,itugs/redis,narma/redis,gaoxianglong/redis,ErikDubbelboer/redis,SyntaxStacks/redis,modulexcite/redis,takeshineshiro/redis,atreeyang/redis,holstvoogd/redis,charsyam/redis,j0hnma/hszredis,takeshineshiro/redis,arijitvt/redis,ipmobiletech/redis,colstrom/redis,thomasdarimont/redis,a-pavlov/redis,gilala/bjredis,neomantra/redis,z-fork/redis,blackmady/redis,narma/redis,j0hnma/hszredis,seandsky/redis,brg-liuwei/redis,tanghaodong25/redis,clamoriniere1A/redis,hawkchch/redis,GrimDerp/redis,RepmujNetsik/redis,rogerlz/redis,janekmi/redis,mengzhejin/RedisStudy,Wangyao14cyy/redis,ipmobiletech/redis,neomantra/redis,vincent-vivian-liu/redis,hawkchch/redis,roth1002/redis,flashbuckets/redis,mverrilli/redis,taoguan/redis,j0hnma/szredis,mgk/redis,GitHubMota/redis,hedisdb/hedis,a-pavlov/redis,NBSW/redis,YuraLukashik/redis,seandsky/redis,PKRoma/redis,ipmobiletech/redis,Sciumo/redis,itamarhaber/redis,yossigo/redis,dreamquster/redis,190235047/redis,j0hnma/hszredis,soveran/redis,linfangrong/redis,yossigo/redis,josiahcarlson/redis,hedisdb/hedis,wenxueliu/redis_comment,soloestoy/redis,hawkchch/redis,janekmi/redis,tellapart/redis,gilala/redis,guker/redis,hgl888/redis,alenslan/redis,zguangyu/redis,kmiku7/redis,pedigree/redis,MOON-CLJ/redis,nuxeh/redis,tjschuck/redis,HeartSaVioR/redis,190235047/redis,seppo0010/rlite-server,ncopa/redis,atreeyang/redis,aim-for-better/redis