how to check uri clock time select pool

Hi,

I think you want to know the time between request and response:

when CLIENT_ACCEPTED {
    set default_pool [LB::server pool]
}
when HTTP_REQUEST {
    set client_req_start_time [clock clicks -milliseconds]
    switch -glob -- [HTTP::path] {
        "*.jpg" {
            set filetype "jpg"
            pool pool_jpgA
        }
        "*.png" {
            set filetype "png"
            pool pool_jpgA
        }
        "default" {
            set filetype "default"
            pool $default_pool
        }
    }
}

when HTTP_RESPONSE {
    switch -- $filetype {
        "jpg" {
            log local0. "jpg file - clock time : [expr {[clock clicks -milliseconds] - $client_req_start_time}]"
        }
        "png" {
            log local0. "png file - clock time : [expr {[clock clicks -milliseconds] - $client_req_start_time}]"
        }
        default {
            log local0. "gif file - clock time : [expr {[clock clicks -milliseconds] - $client_req_start_time}]"
        }
    }
}