hashtable: Add tests for perf counters
hashtable: Add tests for perf counters

behnamm/cs244b_project,jcarreira/ramcloud,alexandermerritt/ramcloud,QingkaiLu/RAMCloud,matrix207/RAMCloud,SMatsushi/RAMCloud,anirajk/RAMCloud,y-higuchi/ramcloud,DavidLi2010/ramcloud,jblomer/ramcloud,anirajk/RAMCloud,QingkaiLu/RAMCloud,alexandermerritt/ramcloud,utah-scs/RAMCloud,taschik/ramcloud-load-manager,taschik/ramcloud,anirajk/RAMCloud,y-higuchi/ramcloud,jcarreira/ramcloud,matrix207/RAMCloud,mrdiegoa/ramcloud,utah-scs/RAMCloud,matrix207/RAMCloud,rstutsman/RAMCloud,jblomer/ramcloud,behnamm/cs244b_project,DavidLi2010/ramcloud,y-higuchi/ramcloud,jblomer/ramcloud,utah-scs/RAMCloud,alexandermerritt/ramcloud,taschik/ramcloud-load-manager,QingkaiLu/RAMCloud,y-higuchi/ramcloud,taschik/ramcloud-load-manager,anirajk/RAMCloud,anirajk/RAMCloud,Frank-Wu/RamCloud,DavidLi2010/ramcloud,SMatsushi/RAMCloud,matrix207/RAMCloud,alexandermerritt/ramcloud,Frank-Wu/RamCloud,Frank-Wu/RamCloud,behnamm/cs244b_project,rstutsman/RAMCloud,Frank-Wu/RamCloud,SMatsushi/RAMCloud,Frank-Wu/RamCloud,taschik/ramcloud,DavidLi2010/ramcloud,taschik/ramcloud,IMCG/RamCloud,IMCG/RamCloud,IMCG/RamCloud,jcarreira/ramcloud,QingkaiLu/RAMCloud,QingkaiLu/RAMCloud,Frank-Wu/RamCloud,jblomer/ramcloud,jblomer/ramcloud,rstutsman/RAMCloud,behnamm/cs244b_project,IMCG/RamCloud,y-higuchi/ramcloud,SMatsushi/RAMCloud,SMatsushi/RAMCloud,utah-scs/RAMCloud,y-higuchi/ramcloud,jblomer/ramcloud,IMCG/RamCloud,alexandermerritt/ramcloud,DavidLi2010/ramcloud,mrdiegoa/ramcloud,jcarreira/ramcloud,behnamm/cs244b_project,matrix207/RAMCloud,mrdiegoa/ramcloud,taschik/ramcloud,taschik/ramcloud,QingkaiLu/RAMCloud,alexandermerritt/ramcloud,rstutsman/RAMCloud,behnamm/cs244b_project,anirajk/RAMCloud,rstutsman/RAMCloud,mrdiegoa/ramcloud,jcarreira/ramcloud,mrdiegoa/ramcloud,utah-scs/RAMCloud,IMCG/RamCloud,jcarreira/ramcloud,rstutsman/RAMCloud,mrdiegoa/ramcloud,matrix207/RAMCloud,taschik/ramcloud-load-manager,DavidLi2010/ramcloud,utah-scs/RAMCloud,SMatsushi/RAMCloud,taschik/ramcloud-load-manager