录制接口如下

.exec(http("request_0")
            .post("/dologin.json")
            .headers(headers_0)
            .formParam("userForm.email", "xxxxxxx")
            .formParam("userForm.password", "xxxxxx")
            .resources(
            http("request_2")
            .get("/")
            .headers(headers_2),
            http("request_5")
            .post("/ajax/websiteProfile/online.json")
            .headers(headers_5),
            http("request_6")
            .post("/user/loginuser.json")
            .headers(headers_5),
            http("request_7")
            .post("/islogin.json")
            .headers(headers_5),
            http("request_8")
            .post("/shopCart/ajax/shopcartnums.json")
            .headers(headers_0)
            .formParam("type", "1"),
            http("request_9")
            .post("/letter/queryUnReadLetter.json")
            .headers(headers_5),
            http("request_10")
            .post("/front/ajax/course.json")
            .headers(headers_10)
            .formParam("subjectId", "0"),
            http("request_11")
            .post("/ajax/subject.json")
            .headers(headers_11),
            http("request_12")
            .post("/front/ajax/article/getImportantArtile.json")
            .headers(headers_5),
            http("request_13")
            .post("/ajax/subject/course.json")
            .headers(headers_10)
            .formParam("subjectId", "260")))

因为单测 dologin 接口的性能还 ok，但是录制登陆场景走的是如上请求，并发不到多少就挂了，
没有理解.resources(http("request_1").....) 的形式对性能有所影响，请大神指教。