本文介绍了使用LoadRunner进行性能测试时的三种不同方法来去除不必要的程序执行时间，包括使用lr_wasted_time函数、子事务以及不做任何处理的方法，并详细解释了每种方法的具体实现。
去除程序执行的两种方式：
1.通过一个事务：在需要消除的代码段，使用lr_wasted_time(wasteTime);
querySubmit()
{
char newStr4[10000]="";
int num4;//获取fid、roomid的个数
double wasteTime,waste; //定义变量
merc_timer_handle_t timer;
lr_vuser_status_message( "当前用户名:%s,迭代次数：%d",lr_eval_string("{fname}"),++iteration );
lr_convert_string_encoding( lr_eval_string("{building}"),LR_ENC_SYSTEM_LOCALE,LR_ENC_UTF8,"UnicodeString" ); //此时building是一个汉字列表的参数，把它转换为utf-8，存入UnicodeString参数中
lr_save_string( lr_eval_string("{UnicodeString}"),"building" ); //把UnicodeString参数的值又覆盖回building参数，前2步相当于完成了building参数的汉字到utf-8的转换
web_convert_param("building","SourceEncoding=PLAIN","TargetEncoding=URL",LAST); //这一步把building参数从utf-8又转换到url编码
lr_convert_string_encoding( lr_eval_string("{gardenid}"),LR_ENC_SYSTEM_LOCALE,LR_ENC_UTF8,"UnicodeString" ); //此时gardenid是一个汉字列表的参数，把它转换为utf-8，存入UnicodeString参数中
lr_save_string( lr_eval_string("{UnicodeString}"),"gardenid" ); //把UnicodeString参数的值又覆盖回gardenid参数，前2步相当于完成了gardenid参数的汉字到utf-8的转换
web_convert_param("gardenid","SourceEncoding=PLAIN","TargetEncoding=URL",LAST); //这一步把gardenid参数从utf-8又转换到url编码
lr_convert_string_encoding( lr_eval_string("{roomNo}"),LR_ENC_SYSTEM_LOCALE,LR_ENC_UTF8,"UnicodeString" ); //此时roomNo是一个汉字列表的参数，把它转换为utf-8，存入UnicodeString参数中
lr_save_string( lr_eval_string("{UnicodeString}"),"roomNo" ); //把UnicodeString参数的值又覆盖回roomNo参数，前2步相当于完成了roomNo参数的汉字到utf-8的转换
web_convert_param("roomNo","SourceEncoding=PLAIN","TargetEncoding=URL",LAST); //这一步把roomNo参数从utf-8又转换到url编码
// lr_output_message("roomNo的Url编码=%s", lr_eval_string("{roomNo}"));
web_set_max_html_param_len("1000000"); //设置关联参数接收最大的字节数
web_reg_save_param_ex(
"ParamName=fid4",
"LB=id\":\"",
"RB=\",",
"NotFound=warning",
"Ordinal=All",
SEARCH_FILTERS,
"Scope=Body",
"RequestUrl=*/queryData*",
LAST);
web_reg_save_param_ex(
"ParamName=roomid4",
"LB=roomId\":\"",
"RB=\",",
"NotFound=warning",
"Ordinal=All",
SEARCH_FILTERS,
"Scope=Body",
"RequestUrl=*/queryData*",
LAST);
lr_rendezvous("设置提交集合点");
lr_start_transaction("查询开始事务");
web_custom_request("queryData_4",
"URL=http://0755.qfang.com/qfang-broker/house/search/queryData",
"Method=POST",
"TargetFrame=",
"Resource=0",
"RecContentType=application/json",
"Referer=http://0755.qfang.com/qfang-broker/house/search",
"Snapshot=t33.inf",
"Mode=HTML",
"EncType=application/x-www-form-urlencoded; charset=UTF-8",
"Body=houseState='RENT_SALE'%2C'RENT'%2C'SALE'%2C'OUTSIDE_SALED'%2C'COMPANY_SALED'%2C'OUTSIDE_RENTED'%2C'COMPANY_RENTED'%2C'STOP'%2C'DATA'&garden='{gardenid}'&building={building}&roomNo={roomNo}&crTypeValue=APARTMENT&subClassType='APARTMENT'&roomPattern='{roomPattern}'&permission=1&orgId={orgid}&searchPage=new&sqlQuery=false&curTab=ALL&changeSearchCondition=true",
LAST);
timer=lr_start_timer(); //timer开始：创建计时器，返回值是计时器标志,统计for循环花费的时间
if (strcmp(lr_eval_string("{fid4}")," ")==0)
{
// lr_output_message("该条记录无法匹配到精确的楼盘信息！");
strcpy(newStr4,"");
lr_save_string( newStr4,"lastStr4" );
// lr_output_message("newStr4的值：%s", newStr4);
}
else
{
for(num4 =1;num4<=atoi(lr_eval_string("{roomid4_count}"));num4++)
{
sprintf( fidVar4,"{fid4_%d}",num4 ); //将num变量保存到fidVar中，
sprintf( fidValue4,"%s",lr_eval_string(fidVar4) );
sprintf( roomidVar4,"{roomid4_%d}",num4 ); //将num变量保存到fidVar中，
sprintf( roomidValue4,"%s",lr_eval_string(roomidVar4) );
lr_output_message("fid4_%d的值:%s", num4, fidValue4);
lr_output_message("roomid4_%d的值:%s", num4, roomidValue4);
strcat( fidValue4,"_" );
strcat( fidValue4,roomidValue4 );
// lr_output_message("%s", fidValue4);
if(num4 != atoi(lr_eval_string("{roomid4_count}")))
{
strcat( fidValue4,"," );
}
strcat( newStr4,fidValue4 );
}
lr_save_string( newStr4,"lastStr4" );
// lr_output_message("newStr4的值：%s", newStr4);
// lr_output_message("拼接后的整体字符串lastStr4的值：%s", lr_eval_string("{lastStr4}"));
}
waste = lr_end_timer(timer); //停止timer
wasteTime=waste * 1000;
lr_wasted_time(wasteTime);
web_submit_data("getNewFollows_4",
"Action=http://0755.qfang.com/qfang-broker/house/follow/getNewFollows",
"Method=POST",
"TargetFrame=",
"RecContentType=application/json",
"Referer=http://0755.qfang.com/qfang-broker/house/search",
"Snapshot=t34.inf",
"Mode=HTML",
ITEMDATA,
"Name=roomIds", "Value={lastStr4}", ENDITEM,
LAST);
lr_end_transaction("查询开始事务", LR_AUTO);
return 0;
}
方案二：通过在父事务中插入两个子事务
querySubmit()
{
char newStr4[10000]="";
int num4;//获取fid、roomid的个数
lr_vuser_status_message( "当前用户名:%s,迭代次数：%d",lr_eval_string("{fname}"),++iteration );
lr_convert_string_encoding( lr_eval_string("{building}"),LR_ENC_SYSTEM_LOCALE,LR_ENC_UTF8,"UnicodeString" ); //此时building是一个汉字列表的参数，把它转换为utf-8，存入UnicodeString参数中
lr_save_string( lr_eval_string("{UnicodeString}"),"building" ); //把UnicodeString参数的值又覆盖回building参数，前2步相当于完成了building参数的汉字到utf-8的转换
web_convert_param("building","SourceEncoding=PLAIN","TargetEncoding=URL",LAST); //这一步把building参数从utf-8又转换到url编码
lr_convert_string_encoding( lr_eval_string("{gardenid}"),LR_ENC_SYSTEM_LOCALE,LR_ENC_UTF8,"UnicodeString" ); //此时gardenid是一个汉字列表的参数，把它转换为utf-8，存入UnicodeString参数中
lr_save_string( lr_eval_string("{UnicodeString}"),"gardenid" ); //把UnicodeString参数的值又覆盖回gardenid参数，前2步相当于完成了gardenid参数的汉字到utf-8的转换
web_convert_param("gardenid","SourceEncoding=PLAIN","TargetEncoding=URL",LAST); //这一步把gardenid参数从utf-8又转换到url编码
lr_convert_string_encoding( lr_eval_string("{roomNo}"),LR_ENC_SYSTEM_LOCALE,LR_ENC_UTF8,"UnicodeString" ); //此时roomNo是一个汉字列表的参数，把它转换为utf-8，存入UnicodeString参数中
lr_save_string( lr_eval_string("{UnicodeString}"),"roomNo" ); //把UnicodeString参数的值又覆盖回roomNo参数，前2步相当于完成了roomNo参数的汉字到utf-8的转换
web_convert_param("roomNo","SourceEncoding=PLAIN","TargetEncoding=URL",LAST); //这一步把roomNo参数从utf-8又转换到url编码
web_set_max_html_param_len("1000000"); //设置关联参数接收最大的字节数
web_reg_save_param_ex(
"ParamName=fid4",
"LB=id\":\"",
"RB=\",",
"NotFound=warning",
"Ordinal=All",
SEARCH_FILTERS,
"Scope=Body",
"RequestUrl=*/queryData*",
LAST);
web_reg_save_param_ex(
"ParamName=roomid4",
"LB=roomId\":\"",
"RB=\",",
"NotFound=warning",
"Ordinal=All",
SEARCH_FILTERS,
"Scope=Body",
"RequestUrl=*/queryData*",
LAST);
// lr_think_time(16);
lr_rendezvous("设置提交集合点");
lr_start_transaction("查询开始事务");
lr_start_sub_transaction("queryDate","查询开始事务");
web_custom_request("queryData_4",
"URL=http://0755.qfang.com/qfang-broker/house/search/queryData",
"Method=POST",
"TargetFrame=",
"Resource=0",
"RecContentType=application/json",
"Referer=http://0755.qfang.com/qfang-broker/house/search",
"Snapshot=t33.inf",
"Mode=HTML",
"EncType=application/x-www-form-urlencoded; charset=UTF-8",
"Body=houseState='RENT_SALE'%2C'RENT'%2C'SALE'%2C'OUTSIDE_SALED'%2C'COMPANY_SALED'%2C'OUTSIDE_RENTED'%2C'COMPANY_RENTED'%2C'STOP'%2C'DATA'&garden='{gardenid}'&building={building}&roomNo={roomNo}&crTypeValue=APARTMENT&subClassType='APARTMENT'&roomPattern='{roomPattern}'&permission=1&orgId={orgid}&searchPage=new&sqlQuery=false&curTab=ALL&changeSearchCondition=true",
LAST);
lr_end_sub_transaction("queryDate",LR_AUTO);
if (strcmp(lr_eval_string("{fid4}")," ")==0)
{
// lr_output_message("该条记录无法匹配到精确的楼盘信息！");
strcpy(newStr4,"");
lr_save_string( newStr4,"lastStr4" );
}
else
{
for(num4 =1;num4<=atoi(lr_eval_string("{roomid4_count}"));num4++)
{
sprintf( fidVar4,"{fid4_%d}",num4 ); //将num变量保存到fidVar中，
sprintf( fidValue4,"%s",lr_eval_string(fidVar4) );
sprintf( roomidVar4,"{roomid4_%d}",num4 ); //将num变量保存到fidVar中，
sprintf( roomidValue4,"%s",lr_eval_string(roomidVar4) );
lr_output_message("fid4_%d的值:%s", num4, fidValue4);
lr_output_message("roomid4_%d的值:%s", num4, roomidValue4);
strcat( fidValue4,"_" );
strcat( fidValue4,roomidValue4 );
if(num4 != atoi(lr_eval_string("{roomid4_count}")))
{
strcat( fidValue4,"," );
}
strcat( newStr4,fidValue4 );
}
lr_save_string( newStr4,"lastStr4" );
}
lr_start_sub_transaction("getNewFollows","查询开始事务");
web_submit_data("getNewFollows_4",
"Action=http://0755.qfang.com/qfang-broker/house/follow/getNewFollows",
"Method=POST",
"TargetFrame=",
"RecContentType=application/json",
"Referer=http://0755.qfang.com/qfang-broker/house/search",
"Snapshot=t34.inf",
"Mode=HTML",
ITEMDATA,
"Name=roomIds", "Value={lastStr4}", ENDITEM,
LAST);
lr_end_sub_transaction("getNewFollows",LR_AUTO);
lr_end_transaction("查询开始事务", LR_AUTO);
return 0;
}
方法三：不添加任何消除时间方法：
querySubmit()
{
char newStr4[10000]="";
int num4;//获取fid、roomid的个数
lr_vuser_status_message( "当前用户名:%s,迭代次数：%d",lr_eval_string("{fname}"),++iteration );
lr_convert_string_encoding( lr_eval_string("{building}"),LR_ENC_SYSTEM_LOCALE,LR_ENC_UTF8,"UnicodeString" ); //此时building是一个汉字列表的参数，把它转换为utf-8，存入UnicodeString参数中
lr_save_string( lr_eval_string("{UnicodeString}"),"building" ); //把UnicodeString参数的值又覆盖回building参数，前2步相当于完成了building参数的汉字到utf-8的转换
web_convert_param("building","SourceEncoding=PLAIN","TargetEncoding=URL",LAST); //这一步把building参数从utf-8又转换到url编码
lr_convert_string_encoding( lr_eval_string("{gardenid}"),LR_ENC_SYSTEM_LOCALE,LR_ENC_UTF8,"UnicodeString" ); //此时gardenid是一个汉字列表的参数，把它转换为utf-8，存入UnicodeString参数中
lr_save_string( lr_eval_string("{UnicodeString}"),"gardenid" ); //把UnicodeString参数的值又覆盖回gardenid参数，前2步相当于完成了gardenid参数的汉字到utf-8的转换
web_convert_param("gardenid","SourceEncoding=PLAIN","TargetEncoding=URL",LAST); //这一步把gardenid参数从utf-8又转换到url编码
lr_convert_string_encoding( lr_eval_string("{roomNo}"),LR_ENC_SYSTEM_LOCALE,LR_ENC_UTF8,"UnicodeString" ); //此时roomNo是一个汉字列表的参数，把它转换为utf-8，存入UnicodeString参数中
lr_save_string( lr_eval_string("{UnicodeString}"),"roomNo" ); //把UnicodeString参数的值又覆盖回roomNo参数，前2步相当于完成了roomNo参数的汉字到utf-8的转换
web_convert_param("roomNo","SourceEncoding=PLAIN","TargetEncoding=URL",LAST); //这一步把roomNo参数从utf-8又转换到url编码
web_set_max_html_param_len("1000000"); //设置关联参数接收最大的字节数
web_reg_save_param_ex(
"ParamName=fid4",
"LB=id\":\"",
"RB=\",",
"NotFound=warning",
"Ordinal=All",
SEARCH_FILTERS,
"Scope=Body",
"RequestUrl=*/queryData*",
LAST);
web_reg_save_param_ex(
"ParamName=roomid4",
"LB=roomId\":\"",
"RB=\",",
"NotFound=warning",
"Ordinal=All",
SEARCH_FILTERS,
"Scope=Body",
"RequestUrl=*/queryData*",
LAST);
// lr_think_time(16);
lr_rendezvous("设置提交集合点");
lr_start_transaction("查询开始事务");
web_custom_request("queryData_4",
"URL=http://0755.qfang.com/qfang-broker/house/search/queryData",
"Method=POST",
"TargetFrame=",
"Resource=0",
"RecContentType=application/json",
"Referer=http://0755.qfang.com/qfang-broker/house/search",
"Snapshot=t33.inf",
"Mode=HTML",
"EncType=application/x-www-form-urlencoded; charset=UTF-8",
"Body=houseState='RENT_SALE'%2C'RENT'%2C'SALE'%2C'OUTSIDE_SALED'%2C'COMPANY_SALED'%2C'OUTSIDE_RENTED'%2C'COMPANY_RENTED'%2C'STOP'%2C'DATA'&garden='{gardenid}'&building={building}&roomNo={roomNo}&crTypeValue=APARTMENT&subClassType='APARTMENT'&roomPattern='{roomPattern}'&permission=1&orgId={orgid}&searchPage=new&sqlQuery=false&curTab=ALL&changeSearchCondition=true",
LAST);
if (strcmp(lr_eval_string("{fid4}")," ")==0)
{
// lr_output_message("该条记录无法匹配到精确的楼盘信息！");
strcpy(newStr4,"");
lr_save_string( newStr4,"lastStr4" );
}
else
{
for(num4 =1;num4<=atoi(lr_eval_string("{roomid4_count}"));num4++)
{
sprintf( fidVar4,"{fid4_%d}",num4 ); //将num变量保存到fidVar中，
sprintf( fidValue4,"%s",lr_eval_string(fidVar4) );
sprintf( roomidVar4,"{roomid4_%d}",num4 ); //将num变量保存到fidVar中，
sprintf( roomidValue4,"%s",lr_eval_string(roomidVar4) );
lr_output_message("fid4_%d的值:%s", num4, fidValue4);
lr_output_message("roomid4_%d的值:%s", num4, roomidValue4);
strcat( fidValue4,"_" );
strcat( fidValue4,roomidValue4 );
if(num4 != atoi(lr_eval_string("{roomid4_count}")))
{
strcat( fidValue4,"," );
}
strcat( newStr4,fidValue4 );
}
lr_save_string( newStr4,"lastStr4" );
}
web_submit_data("getNewFollows_4",
"Action=http://0755.qfang.com/qfang-broker/house/follow/getNewFollows",
"Method=POST",
"TargetFrame=",
"RecContentType=application/json",
"Referer=http://0755.qfang.com/qfang-broker/house/search",
"Snapshot=t34.inf",
"Mode=HTML",
ITEMDATA,
"Name=roomIds", "Value={lastStr4}", ENDITEM,
LAST);
lr_end_transaction("查询开始事务", LR_AUTO);
return 0;
}
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