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| author | GitLab Bot <gitlab-bot@gitlab.com> | 2021-08-19 12:08:42 +0300 |
|---|---|---|
| committer | GitLab Bot <gitlab-bot@gitlab.com> | 2021-08-19 12:08:42 +0300 |
| commit | b76ae638462ab0f673e5915986070518dd3f9ad3 (patch) | |
| tree | bdab0533383b52873be0ec0eb4d3c66598ff8b91 /doc/development/query_performance.md | |
| parent | 434373eabe7b4be9593d18a585fb763f1e5f1a6f (diff) | |
Add latest changes from gitlab-org/gitlab@14-2-stable-eev14.2.0-rc42
Diffstat (limited to 'doc/development/query_performance.md')
| -rw-r--r-- | doc/development/query_performance.md | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/doc/development/query_performance.md b/doc/development/query_performance.md index 318d9f46aff..bc1f753c012 100644 --- a/doc/development/query_performance.md +++ b/doc/development/query_performance.md @@ -18,10 +18,10 @@ When you are optimizing your SQL queries, there are two dimensions to pay attent | Query Type | Maximum Query Time | Notes | |----|----|---| | General queries | `100ms` | This is not a hard limit, but if a query is getting above it, it is important to spend time understanding why it can or cannot be optimized. | -| Queries in a migration | `100ms` | This is different than the total [migration time](database_review.md#timing-guidelines-for-migrations). | +| Queries in a migration | `100ms` | This is different than the total [migration time](migration_style_guide.md#how-long-a-migration-should-take). | | Concurrent operations in a migration | `5min` | Concurrent operations do not block the database, but they block the GitLab update. This includes operations such as `add_concurrent_index` and `add_concurrent_foreign_key`. | | Background migrations | `1s` | | -| Service Ping | `1s` | See the [Service Ping docs](service_ping/index.md#developing-and-testing-service-ping) for more details. | +| Service Ping | `1s` | See the [Service Ping docs](service_ping/implement.md) for more details. | - When analyzing your query's performance, pay attention to if the time you are seeing is on a [cold or warm cache](#cold-and-warm-cache). These guidelines apply for both cache types. - When working with batched queries, change the range and batch size to see how it effects the query timing and caching. |