pack: evict all of the pages at once
pack: evict all of the pages at once

Somewhat surprisingly, this can increase the speed considerably, as we
don't bother trying to decide what to evict, and the most used entries
are quickly back into the cache.

MrHacky/libgit2,claudelee/libgit2,spraints/libgit2,since2014/libgit2,leoyanggit/libgit2,iankronquist/libgit2,nokiddin/libgit2,whoisj/libgit2,stewid/libgit2,Tousiph/Demo1,nokiddin/libgit2,swisspol/DEMO-libgit2,linquize/libgit2,dleehr/libgit2,amyvmiwei/libgit2,Corillian/libgit2,dleehr/libgit2,oaastest/libgit2,sim0629/libgit2,whoisj/libgit2,kenprice/libgit2,Corillian/libgit2,spraints/libgit2,nokiddin/libgit2,stewid/libgit2,jeffhostetler/public_libgit2,sim0629/libgit2,evhan/libgit2,yongthecoder/libgit2,Aorjoa/libgit2_maked_lib,KTXSoftware/libgit2,jeffhostetler/public_libgit2,skabel/manguse,rcorre/libgit2,yosefhackmon/libgit2,chiayolin/libgit2,iankronquist/libgit2,MrHacky/libgit2,mcanthony/libgit2,MrHacky/libgit2,jflesch/libgit2-mariadb,KTXSoftware/libgit2,magnus98/TEST,Corillian/libgit2,zodiac/libgit2.js,skabel/manguse,JIghtuse/libgit2,swisspol/DEMO-libgit2,leoyanggit/libgit2,sim0629/libgit2,jflesch/libgit2-mariadb,whoisj/libgit2,KTXSoftware/libgit2,yongthecoder/libgit2,dleehr/libgit2,falqas/libgit2,mingyaaaa/libgit2,claudelee/libgit2,raybrad/libit2,zodiac/libgit2.js,claudelee/libgit2,t0xicCode/libgit2,leoyanggit/libgit2,rcorre/libgit2,mrksrm/Mingijura,jamieleecool/ptest,joshtriplett/libgit2,sygool/libgit2,saurabhsuniljain/libgit2,zodiac/libgit2.js,jamieleecool/ptest,JIghtuse/libgit2,raybrad/libit2,sim0629/libgit2,Tousiph/Demo1,mingyaaaa/libgit2,KTXSoftware/libgit2,MrHacky/libgit2,Aorjoa/libgit2_maked_lib,whoisj/libgit2,jeffhostetler/public_libgit2,amyvmiwei/libgit2,yosefhackmon/libgit2,claudelee/libgit2,swisspol/DEMO-libgit2,magnus98/TEST,mingyaaaa/libgit2,swisspol/DEMO-libgit2,Snazz2001/libgit2,yongthecoder/libgit2,Tousiph/Demo1,kenprice/libgit2,jamieleecool/ptest,whoisj/libgit2,since2014/libgit2,yongthecoder/libgit2,joshtriplett/libgit2,mhp/libgit2,leoyanggit/libgit2,yosefhackmon/libgit2,Corillian/libgit2,iankronquist/libgit2,falqas/libgit2,skabel/manguse,chiayolin/libgit2,nokiddin/libgit2,linquize/libgit2,spraints/libgit2,since2014/libgit2,KTXSoftware/libgit2,leoyanggit/libgit2,chiayolin/libgit2,MrHacky/libgit2,oaastest/libgit2,ardumont/libgit2,claudelee/libgit2,kissthink/libgit2,sygool/libgit2,maxiaoqian/libgit2,ardumont/libgit2,dleehr/libgit2,Aorjoa/libgit2_maked_lib,saurabhsuniljain/libgit2,magnus98/TEST,t0xicCode/libgit2,sygool/libgit2,joshtriplett/libgit2,sygool/libgit2,kenprice/libgit2,stewid/libgit2,ardumont/libgit2,magnus98/TEST,saurabhsuniljain/libgit2,falqas/libgit2,yosefhackmon/libgit2,saurabhsuniljain/libgit2,kissthink/libgit2,skabel/manguse,mhp/libgit2,iankronquist/libgit2,swisspol/DEMO-libgit2,maxiaoqian/libgit2,linquize/libgit2,kissthink/libgit2,mrksrm/Mingijura,Snazz2001/libgit2,evhan/libgit2,Aorjoa/libgit2_maked_lib,rcorre/libgit2,maxiaoqian/libgit2,maxiaoqian/libgit2,sygool/libgit2,jflesch/libgit2-mariadb,kenprice/libgit2,skabel/manguse,mcanthony/libgit2,mrksrm/Mingijura,JIghtuse/libgit2,JIghtuse/libgit2,chiayolin/libgit2,mrksrm/Mingijura,chiayolin/libgit2,zodiac/libgit2.js,mrksrm/Mingijura,ardumont/libgit2,sim0629/libgit2,oaastest/libgit2,evhan/libgit2,oaastest/libgit2,jeffhostetler/public_libgit2,jeffhostetler/public_libgit2,joshtriplett/libgit2,kenprice/libgit2,chiayolin/libgit2,amyvmiwei/libgit2,since2014/libgit2,magnus98/TEST,sim0629/libgit2,yongthecoder/libgit2,saurabhsuniljain/libgit2,t0xicCode/libgit2,yosefhackmon/libgit2,falqas/libgit2,maxiaoqian/libgit2,swisspol/DEMO-libgit2,raybrad/libit2,oaastest/libgit2,joshtriplett/libgit2,jflesch/libgit2-mariadb,nokiddin/libgit2,t0xicCode/libgit2,since2014/libgit2,since2014/libgit2,mhp/libgit2,yongthecoder/libgit2,zodiac/libgit2.js,joshtriplett/libgit2,amyvmiwei/libgit2,kissthink/libgit2,spraints/libgit2,Aorjoa/libgit2_maked_lib,kissthink/libgit2,whoisj/libgit2,Snazz2001/libgit2,maxiaoqian/libgit2,saurabhsuniljain/libgit2,mcanthony/libgit2,amyvmiwei/libgit2,linquize/libgit2,Corillian/libgit2,JIghtuse/libgit2,skabel/manguse,spraints/libgit2,linquize/libgit2,nokiddin/libgit2,mhp/libgit2,yosefhackmon/libgit2,ardumont/libgit2,iankronquist/libgit2,mingyaaaa/libgit2,dleehr/libgit2,raybrad/libit2,mhp/libgit2,KTXSoftware/libgit2,sygool/libgit2,mhp/libgit2,Snazz2001/libgit2,Corillian/libgit2,mcanthony/libgit2,falqas/libgit2,stewid/libgit2,mingyaaaa/libgit2,rcorre/libgit2,stewid/libgit2,Tousiph/Demo1,t0xicCode/libgit2,Snazz2001/libgit2,mcanthony/libgit2,JIghtuse/libgit2,kenprice/libgit2,claudelee/libgit2,evhan/libgit2,Snazz2001/libgit2,amyvmiwei/libgit2,mrksrm/Mingijura,dleehr/libgit2,stewid/libgit2,magnus98/TEST,kissthink/libgit2,mcanthony/libgit2,raybrad/libit2,linquize/libgit2,mingyaaaa/libgit2,jflesch/libgit2-mariadb,Tousiph/Demo1,Tousiph/Demo1,falqas/libgit2,t0xicCode/libgit2,oaastest/libgit2,spraints/libgit2,jeffhostetler/public_libgit2,iankronquist/libgit2,rcorre/libgit2,MrHacky/libgit2,ardumont/libgit2,jflesch/libgit2-mariadb,rcorre/libgit2,jamieleecool/ptest,leoyanggit/libgit2