Modify time_period for last 28 days

Aims is to improve batch counting performance

changelogs/unreleased/251048-modify-time-period-for-batch-counting-performance-of-the-last-port.yml

+---
+title: Modify time_period for last 28 days to improve batch counting performance
+merge_request: 42972
+author:
+type: performance

ee/spec/lib/ee/gitlab/usage_data_spec.rb

@@ -478,9 +478,10 @@ RSpec.describe Gitlab::UsageData do
   end
 
   describe 'usage_activity_by_stage_secure' do
-    let_it_be(:user) { create(:user, group_view: :security_dashboard) }
-    let_it_be(:user2) { create(:user, group_view: :security_dashboard) }
-    let_it_be(:user3) { create(:user, group_view: :security_dashboard) }
+    let_it_be(:days_ago_within_monthly_time_period) { 3.days.ago }
+    let_it_be(:user) { create(:user, group_view: :security_dashboard, created_at: days_ago_within_monthly_time_period) }
+    let_it_be(:user2) { create(:user, group_view: :security_dashboard, created_at: days_ago_within_monthly_time_period) }
+    let_it_be(:user3) { create(:user, group_view: :security_dashboard, created_at: days_ago_within_monthly_time_period) }
 
     before do
       for_defined_days_back do

lib/gitlab/usage_data.rb

@@ -473,7 +473,7 @@ module Gitlab
       end
 
       def last_28_days_time_period(column: :created_at)
-        { column => 28.days.ago..Time.current }
+        { column => 30.days.ago..2.days.ago }
       end
 
       # Source: https://gitlab.com/gitlab-data/analytics/blob/master/transform/snowflake-dbt/data/ping_metrics_to_stage_mapping_data.csv

spec/factories/usage_data.rb

@@ -97,9 +97,9 @@ FactoryBot.define do
       create(:grafana_integration, project: projects[1], enabled: true)
       create(:grafana_integration, project: projects[2], enabled: false)
 
-      create(:package, project: projects[0])
-      create(:package, project: projects[0])
-      create(:package, project: projects[1])
+      create(:package, project: projects[0], created_at: 3.days.ago)
+      create(:package, project: projects[0], created_at: 3.days.ago)
+      create(:package, project: projects[1], created_at: 3.days.ago)
       create(:package, created_at: 2.months.ago, project: projects[1])
 
       # User Preferences
@@ -109,7 +109,7 @@ FactoryBot.define do
 
       # Create fresh & a month (28-days SMAU) old  data
       env = create(:environment, project: projects[3])
-      [2, 29].each do |n|
+      [3, 31].each do |n|
         deployment_options = { created_at: n.days.ago, project: env.project, environment: env }
         create(:deployment, :failed, deployment_options)
         create(:deployment, :success, deployment_options)

spec/lib/gitlab/usage_data_spec.rb

@@ -1020,7 +1020,7 @@ RSpec.describe Gitlab::UsageData, :aggregate_failures do
     end
   end
 
-  def for_defined_days_back(days: [29, 2])
+  def for_defined_days_back(days: [31, 3])
     days.each do |n|
       Timecop.travel(n.days.ago) do
         yield

spec/support/helpers/usage_data_helpers.rb

@@ -229,7 +229,7 @@ module UsageDataHelpers
     receive_matchers.each { |m| expect(prometheus_client).to m }
   end
 
-  def for_defined_days_back(days: [29, 2])
+  def for_defined_days_back(days: [31, 3])
     days.each do |n|
       Timecop.travel(n.days.ago) do
         yield