Tweaks to cold start system test to use sync write mode.
Tweaks to cold start system test to use sync write mode.

Should now work.

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