curl '--write-out' detailed performance report on url

ReadME.md

https://stackoverflow.com/questions/18215389/how-do-i-measure-request-and-response-times-at-once-using-curl

https://blog.josephscott.org/2011/10/14/timing-details-with-curl/

man curl

curl -L -w "@/home/aaron/lib/curl/curl-format.detailed.txt" -o /dev/null -s http://

cat > ~/lib/curl/curl-format.detailed.txt

      num_redirects:  %{num_redirects}\n
       num_connects:  %{num_connects}\n
                ----------\n
      size_download:  %{size_download}\n
        size_header:  %{size_header}\n
       size_request:  %{size_request}\n
        size_upload:  %{size_upload}\n
     speed_download:  %{speed_download}\n
       speed_upload:  %{speed_upload}\n
                ----------\n    
    time_namelookup:  %{time_namelookup}\n
       time_connect:  %{time_connect}\n
    time_appconnect:  %{time_appconnect}\n
   time_pretransfer:  %{time_pretransfer}\n
      time_redirect:  %{time_redirect}\n
 time_starttransfer:  %{time_starttransfer}\n
                    ----------\n
         time_total:  %{time_total}\n
         
      num_redirects:  2
       num_connects:  3
      size_download:  29051
        size_header:  1427
       size_request:  234
        size_upload:  0
     speed_download:  29433.000
       speed_upload:  0.000
    time_namelookup:  0.010273
       time_connect:  0.044321
    time_appconnect:  0.086639
   time_pretransfer:  0.100233
      time_redirect:  0.588321
 time_starttransfer:  0.962530
                    ----------
         time_total:  0.987888    
      size_download:  %{size_download}\n
        size_header:  %{size_header}\n
       size_request:  %{size_request}\n
        size_upload:  %{size_upload}\n
     speed_download:  %{speed_download}\n
       speed_upload:  %{speed_upload}\n

    time_namelookup:  %{time_namelookup}\n
       time_connect:  %{time_connect}\n
    time_appconnect:  %{time_appconnect}\n
   time_pretransfer:  %{time_pretransfer}\n
      time_redirect:  %{time_redirect}\n
 time_starttransfer:  %{time_starttransfer}\n
                    ----------\n
         time_total:  %{time_total}\n
         
      num_redirects:  2
       num_connects:  3
      size_download:  29051
        size_header:  1427
       size_request:  234
        size_upload:  0
     speed_download:  29433.000
       speed_upload:  0.000
    time_namelookup:  0.010273
       time_connect:  0.044321
    time_appconnect:  0.086639
   time_pretransfer:  0.100233
      time_redirect:  0.588321
 time_starttransfer:  0.962530
                    ----------
         time_total:  0.987888

curl-format.detailed.txt

      num_redirects:  %{num_redirects}\n
       num_connects:  %{num_connects}\n
                    ----------\n
      size_download:  %{size_download}\n
        size_header:  %{size_header}\n
       size_request:  %{size_request}\n
        size_upload:  %{size_upload}\n
     speed_download:  %{speed_download}\n
       speed_upload:  %{speed_upload}\n
                    ----------\n
    time_namelookup:  %{time_namelookup}\n
       time_connect:  %{time_connect}\n
    time_appconnect:  %{time_appconnect}\n
   time_pretransfer:  %{time_pretransfer}\n
      time_redirect:  %{time_redirect}\n
 time_starttransfer:  %{time_starttransfer}\n
                    ----------\n
         time_total:  %{time_total}\n

curl-format.txt

    time_namelookup:  %{time_namelookup}\n
       time_connect:  %{time_connect}\n
    time_appconnect:  %{time_appconnect}\n
   time_pretransfer:  %{time_pretransfer}\n
      time_redirect:  %{time_redirect}\n
 time_starttransfer:  %{time_starttransfer}\n
                    ----------\n
         time_total:  %{time_total}\n