Graph profiles show how long each method runs, which methods call it and which methods it calls. To understand how to read a graph profile, refer to the documentation for the text graph report.
The main advantage of an HTML graph format versus the text format is the use of hyperlinks to jump between methods. This makes it easier to understand the flow of control through a program and which methods take the most time.
Below is the output from running printers_test.rb reproduced in HTML.
Profile Report
| Thread ID | Total Time |
|---|---|
| 21277412 | 8.766 |
| %Total | %Self | Total | Self | Children | Calls | Name |
|---|---|---|---|---|---|---|
| 100.00% | 0.00% | 8.77 | 0.00 | 8.77 | 1 | #toplevel |
| 8.77 | 0.00 | 8.77 | 1/1 | Object#run_primes | ||
| 8.77 | 0.00 | 8.77 | 1/1 | #toplevel | ||
| 100.00% | 0.00% | 8.77 | 0.00 | 8.77 | 1 | Object#run_primes |
| 0.02 | 0.00 | 0.02 | 1/1 | Object#make_random_array | ||
| 2.09 | 0.00 | 2.09 | 1/1 | Object#find_largest | ||
| 6.66 | 0.00 | 6.66 | 1/1 | Object#find_primes | ||
| 6.63 | 4.06 | 2.56 | 500/501 | Object#is_prime | ||
| 2.09 | 0.00 | 2.09 | 1/501 | Object#find_largest | ||
| 99.48% | 46.34% | 8.72 | 4.06 | 4.66 | 501 | Integer#upto |
| 0.00 | 0.00 | 0.00 | 61/61 | Array#[] | ||
| 0.00 | 0.00 | 0.00 | 61/61 | Fixnum#_ | ||
| 2.09 | 2.09 | 0.00 | 61/61 | Kernel.sleep | ||
| 1.24 | 1.24 | 0.00 | 250862/250862 | Fixnum#== | ||
| 1.33 | 1.33 | 0.00 | 250862/250862 | Fixnum#% | ||
| 6.66 | 0.01 | 6.64 | 1/1 | Object#find_primes | ||
| 75.93% | 0.17% | 6.66 | 0.01 | 6.64 | 1 | Array#select |
| 6.64 | 0.01 | 6.63 | 500/500 | Object#is_prime | ||
| 6.66 | 0.00 | 6.66 | 1/1 | Object#run_primes | ||
| 75.93% | 0.00% | 6.66 | 0.00 | 6.66 | 1 | Object#find_primes |
| 6.66 | 0.01 | 6.64 | 1/1 | Array#select | ||
| 6.64 | 0.01 | 6.63 | 500/500 | Array#select | ||
| 75.76% | 0.17% | 6.64 | 0.01 | 6.63 | 500 | Object#is_prime |
| 0.00 | 0.00 | 0.00 | 500/501 | Fixnum#- | ||
| 6.63 | 4.06 | 2.56 | 500/501 | Integer#upto | ||
| 2.09 | 0.00 | 2.09 | 1/1 | Object#run_primes | ||
| 23.89% | 0.00% | 2.09 | 0.00 | 2.09 | 1 | Object#find_largest |
| 0.00 | 0.00 | 0.00 | 1/501 | Fixnum#- | ||
| 2.09 | 0.00 | 2.09 | 1/501 | Integer#upto | ||
| 0.00 | 0.00 | 0.00 | 1/1 | Array#first | ||
| 0.00 | 0.00 | 0.00 | 1/1 | Array#length | ||
| 2.09 | 2.09 | 0.00 | 61/61 | Integer#upto | ||
| 23.89% | 23.89% | 2.09 | 2.09 | 0.00 | 61 | Kernel.sleep |
| 1.33 | 1.33 | 0.00 | 250862/250862 | Integer#upto | ||
| 15.12% | 15.12% | 1.33 | 1.33 | 0.00 | 250862 | Fixnum#% |
| 1.24 | 1.24 | 0.00 | 250862/250862 | Integer#upto | ||
| 14.13% | 14.13% | 1.24 | 1.24 | 0.00 | 250862 | Fixnum#== |
| 0.02 | 0.00 | 0.02 | 1/1 | Object#run_primes | ||
| 0.18% | 0.00% | 0.02 | 0.00 | 0.02 | 1 | Object#make_random_array |
| 0.02 | 0.02 | 0.00 | 1/1 | Array#each_index | ||
| 0.00 | 0.00 | 0.00 | 1/1 | Class#new | ||
| 0.02 | 0.02 | 0.00 | 1/1 | Object#make_random_array | ||
| 0.18% | 0.18% | 0.02 | 0.02 | 0.00 | 1 | Array#each_index |
| 0.00 | 0.00 | 0.00 | 500/500 | Kernel.rand | ||
| 0.00 | 0.00 | 0.00 | 500/500 | Array#[]= | ||
| 0.00 | 0.00 | 0.00 | 500/501 | Object#is_prime | ||
| 0.00 | 0.00 | 0.00 | 1/501 | Object#find_largest | ||
| 0.00% | 0.00% | 0.00 | 0.00 | 0.00 | 501 | Fixnum#- |
| 0.00 | 0.00 | 0.00 | 1/1 | Kernel.rand | ||
| 0.00% | 0.00% | 0.00 | 0.00 | 0.00 | 1 | Integer#to_int |
| 0.00 | 0.00 | 0.00 | 1/1 | Object#find_largest | ||
| 0.00% | 0.00% | 0.00 | 0.00 | 0.00 | 1 | Array#first |
| 0.00 | 0.00 | 0.00 | 1/1 | Class#new | ||
| 0.00% | 0.00% | 0.00 | 0.00 | 0.00 | 1 | Array#initialize |
| 0.00 | 0.00 | 0.00 | 1/1 | Object#find_largest | ||
| 0.00% | 0.00% | 0.00 | 0.00 | 0.00 | 1 | Array#length |
| 0.00 | 0.00 | 0.00 | 1/1 | Object#make_random_array | ||
| 0.00% | 0.00% | 0.00 | 0.00 | 0.00 | 1 | Class#new |
| 0.00 | 0.00 | 0.00 | 1/1 | Array#initialize | ||
| 0.00 | 0.00 | 0.00 | 61/61 | Integer#upto | ||
| 0.00% | 0.00% | 0.00 | 0.00 | 0.00 | 61 | Fixnum#_ |
| 0.00 | 0.00 | 0.00 | 61/61 | Integer#upto | ||
| 0.00% | 0.00% | 0.00 | 0.00 | 0.00 | 61 | Array#[] |
| 0.00 | 0.00 | 0.00 | 500/500 | Array#each_index | ||
| 0.00% | 0.00% | 0.00 | 0.00 | 0.00 | 500 | Array#[]= |
| 0.00 | 0.00 | 0.00 | 500/500 | Array#each_index | ||
| 0.00% | 0.00% | 0.00 | 0.00 | 0.00 | 500 | Kernel.rand |
| 0.00 | 0.00 | 0.00 | 1/1 | Integer#to_int | ||