<div class="__aliyun_email_body_block"><div  style="line-height:1.7;font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;color:#000000;"><div  style="clear:both;">Hi&nbsp;everyone: &nbsp; &nbsp;</div><div  style="clear:both;">&nbsp; &nbsp;&nbsp; I&nbsp;have test ovs-dpdk PVP performance for several days . And I have found in high concurrency scenarios(eg. 100K mac-ip streams), the ovs-dpdk performance gets significant decline. And one cause of performance decline is the emc entry num limitation, is that right? If I just increase emc entry num,&nbsp; will other problems occur ? <span  style="text-align:left;color:#000000;text-transform:none;text-indent:.0px;font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;display:inline;float:none;background-color:transparent;">Are there any suggession helping to get performance improvement under high concurrency scenarios?</span></div><div  style="clear:both;"><span  style="text-align:left;color:#000000;text-transform:none;text-indent:.0px;font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;display:inline;float:none;background-color:transparent;"><br ></span></div><div  style="clear:both;"><span  style="text-align:left;color:#000000;text-transform:none;text-indent:.0px;font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;display:inline;float:none;background-color:transparent;">Thanks</span></div><div  style="clear:both;"><span  style="text-align:left;color:#000000;text-transform:none;text-indent:.0px;font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;display:inline;float:none;background-color:transparent;"><br ></span></div><div  style="clear:both;"><span  style="text-align:left;color:#000000;text-transform:none;text-indent:.0px;font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;display:inline;float:none;background-color:transparent;">Timo&nbsp;</span></div><div  style="clear:both;"><br ></div></div></div>