diff --git a/app/services/subjects/user_used_info_service.rb b/app/services/subjects/user_used_info_service.rb
index 82fc5316b..c736b39b9 100644
--- a/app/services/subjects/user_used_info_service.rb
+++ b/app/services/subjects/user_used_info_service.rb
@@ -12,8 +12,8 @@ class Subjects::UserUsedInfoService < ApplicationService
   def call
     users_info = []
     users = User.includes(myshixuns: :games).where(myshixuns: {shixun_id: shixun_ids}, games: {status: 2}, users: {is_test: false})
-    users.find_in_batches do |u|
-      Parallel.each(u, in_processes: 5) do |user|
+    users.find_in_batches(batch_size: 500) do |u|
+      Parallel.each(u, in_processes: 10) do |user|
         myshixuns = user.myshixuns.select{|m| shixun_ids.include?(m.shixun_id)}
         name =  "#{user.lastname}#{user.firstname}"
         passed_myshixun_count = myshixuns.select{|m| m.status == 1}.size
diff --git a/lib/tasks/statistic_subject_info.rake b/lib/tasks/statistic_subject_info.rake
index 253cac85a..bec200181 100644
--- a/lib/tasks/statistic_subject_info.rake
+++ b/lib/tasks/statistic_subject_info.rake
@@ -125,7 +125,7 @@ namespace :subjects do
     subjects.find_each(batch_size: 50) do |subject|
       puts("---------------------user_info_statistic: #{subject.id}")
       data = Subjects::UserUsedInfoService.call(subject)
-      Parallel.each(data, in_processes: 5) do |key|
+      Parallel.each(data, in_processes: 10) do |key|
         next if key[:user_id].nil?
         str += ", " unless str.empty?
         str += ("(#{key[:user_id]}, #{subject.id}, '#{key[:name].gsub(/'/, '"')}', #{key[:passed_myshixun_count]}, " +