# TopicsController#index

- **Period:** 12 Jun 17:31 UTC – 12 Jun 17:37 UTC
- **Throughput**: 1.16 / min
- **Average:** 44.8 ms

## Most Impactful Sections
| Kind | Location | Avg ms | Avg calls | Impact | Command |
| ---- | -------- | -----: | --------: | -----: | ------- |
| view | app/views/topics/index.html.erb | 7.71 | 1.0 | 17.23% |  |
| sql | app/views/layouts/application.html.erb:237 | 1.19 | 3.0 | 7.98% | `SELECT "essays".* FROM "essays" WHERE "essays"."status" = ? ORDER BY "essays"."…` |
| sql | app/views/topics/index.html.erb:15 | 1.19 | 3.0 | 7.98% | `SELECT DISTINCT "topics".* FROM "topics" INNER JOIN "essays" ON "essays"."topic…` |
| sql | app/views/layouts/application.html.erb:249 | 3.43 | 1.0 | 7.66% | `SELECT categories.*, sum(essays.hits_nb) as hits_sum FROM "categories" INNER JO…` |
| sql | app/models/category.rb:177 | 3.14 | 1.0 | 7.02% | `SELECT "categories".* FROM "categories" INNER JOIN "groups" ON "groups"."id" = …` |
| view | app/views/layouts/application.html.erb | 2.86 | 1.0 | 6.38% |  |
| code | app/controllers/topics_controller.rb:9 | 2.71 | 1.0 | 6.06% | `TopicsController#index` |
| sql | app/models/category.rb:163 | 2.57 | 1.0 | 5.74% | `SELECT "categories".* FROM "categories" INNER JOIN "groups" ON "groups"."id" = …` |
| gc | ruby/gc.c | 3.75 | 0.57 | 4.79% | `GC.start` |
| sql | app/models/category.rb:112 | 0.62 | 3.0 | 4.15% | `SELECT "quiz_questions".* FROM "quiz_questions" WHERE "quiz_questions"."categor…` |
| queue | queue | 1.57 | 1.0 | 3.51% |  |
| sql | app/views/topics/index.html.erb:23 | 1.0 | 0.71 | 1.60% | `SELECT COUNT(DISTINCT "topics"."id") FROM "topics" INNER JOIN "essays" ON "essa…` |
| rack | /app/vendor/bundle/ruby/4.0.0/gems/warden-1.2.9/lib/warden/manager.rb:30 | 0.57 | 1.0 | 1.28% | `Warden::Manager` |
| view | vendor/bundle/ruby/4.0.0/gems/kaminari-core-1.2.2/app/views/kaminari/_paginator.html.erb | 0.8 | 0.71 | 1.28% |  |

[View on RoRvsWild ↗](https://www.rorvswild.com/applications/135493/requests/TopicsController%23index?range=2026-06-12+17%3A31%3A51+UTC..2026-06-12+17%3A37%3A53+UTC)