Measuring resource usage

Are you using LiveCode to create server scripts or CGIs?

Moderators: FourthWorld, heatherlaine, Klaus, kevinmiller, robinmiller

Post Reply
FourthWorld
VIP Livecode Opensource Backer
VIP Livecode Opensource Backer
Posts: 9960
Joined: Sat Apr 08, 2006 7:05 am
Contact:

Measuring resource usage

Post by FourthWorld » Wed May 14, 2014 4:51 pm

CGI is an uncommonly harsh environment, with the entire runtime life cycle happening in the time it takes to satisfy an HTTP request. So I tend to take great care in measuring both CPU time and memory with CGI scripts, but I've found it difficult to get accurate measurements in the server environment.

One commonly-recommended method is to use the "time" program, with the --verbose option to include memory

Code: Select all

/usr/bin/time --verbose ./livecode-server somescriptfile.lc
It seems on many systems that time program is implemented in an incomplete way, showing artificially low values for memory usage.

top might seem a good option, but in practice it's useless since even its tightest update frequency is less than the execution time of my scripts.

Any suggestions for something like /usr/bin/time but is actually reliable, something I can attach to the command line call for an accurate measurement of both time and memory?
Richard Gaskin
LiveCode development, training, and consulting services: Fourth World Systems
LiveCode Group on Facebook
LiveCode Group on LinkedIn

Post Reply

Return to “CGIs and the Server”