# TopicsController#index

- **Period:** 13 Jun 06:00 UTC – 13 Jun 06:14 UTC
- **Throughput**: 0.87 / min
- **Average:** 48.3 ms

## Most Impactful Sections
| Kind | Location | Avg ms | Avg calls | Impact | Command |
| ---- | -------- | -----: | --------: | -----: | ------- |
| view | app/views/topics/index.html.erb | 9.23 | 1.0 | 19.09% |  |
| sql | app/views/layouts/application.html.erb:249 | 3.69 | 1.0 | 7.64% | `SELECT categories.*, sum(essays.hits_nb) as hits_sum FROM "categories" INNER JO…` |
| sql | app/views/topics/index.html.erb:15 | 1.23 | 3.0 | 7.64% | `SELECT DISTINCT "topics".* FROM "topics" INNER JOIN "essays" ON "essays"."topic…` |
| view | app/views/layouts/application.html.erb | 3.62 | 1.0 | 7.48% |  |
| sql | app/views/layouts/application.html.erb:237 | 1.18 | 3.0 | 7.32% | `SELECT "essays".* FROM "essays" WHERE "essays"."status" = ? ORDER BY "essays"."…` |
| code | app/controllers/topics_controller.rb:9 | 3.46 | 1.0 | 7.16% | `TopicsController#index` |
| sql | app/models/category.rb:177 | 2.62 | 1.0 | 5.41% | `SELECT "categories".* FROM "categories" INNER JOIN "groups" ON "groups"."id" = …` |
| sql | app/models/category.rb:112 | 0.74 | 3.0 | 4.61% | `SELECT "quiz_questions".* FROM "quiz_questions" WHERE "quiz_questions"."categor…` |
| gc | ruby/gc.c | 3.25 | 0.62 | 4.14% | `GC.start` |
| sql | app/models/category.rb:163 | 1.69 | 1.0 | 3.50% | `SELECT "categories".* FROM "categories" INNER JOIN "groups" ON "groups"."id" = …` |
| queue | queue | 1.23 | 1.0 | 2.55% |  |
| sql | app/controllers/topics_controller.rb:11 | 0.54 | 1.0 | 1.11% | `SELECT "categories".* FROM "categories" WHERE "categories"."slug" = ? LIMIT ?` |

[View on RoRvsWild ↗](https://www.rorvswild.com/applications/135493/requests/TopicsController%23index?range=15m)