请问一下，下面是我用tsung压测tigase的配置文件内容和结果，请问这样的配置可以吗，结果是否是正常的
<?xml version="1.0"?>
<!DOCTYPE tsung SYSTEM "/usr/local/tsung/share/tsung/tsung-1.0.dtd">
<!-- Server side setup配置服务器IP或域名-->
<users maxnumber="180000" interarrival="0.0025" unit="second"></users>
<!-- JABBER parameters -->
<!-- to synchronise users, use a global acknoledgement -->
error
<transaction name="authenticate">
<request> <jabber type="auth_get" ack="no_ack"></jabber> </request>
<request> <jabber type="auth_set_plain" ack="no_ack"></jabber> </request>
</transaction>
<!-- "presence:initial" : connected -> online -->
<request> <jabber type="presence:initial" ack="no_ack"/> </request>
<thinktime value="300"></thinktime>
<transaction name="roster">