Use Concurrent.usable_processor_count when it is available

CHANGELOG.md

@@ -1,3 +1,9 @@
+## Unreleased
+
+### Internal
+
+- Use Concurrent.usable_processor_count when it is available ([#2339](https://github.com/getsentry/sentry-ruby/pull/2339))
+
 ## 5.18.1
 
 ### Bug Fixes

sentry-ruby/lib/sentry/configuration.rb

@@ -351,7 +351,7 @@
     def initialize
       self.app_dirs_pattern = nil
       self.debug = false
-      self.background_worker_threads = (Concurrent.processor_count / 2.0).ceil
+      self.background_worker_threads = (processor_count / 2.0).ceil
       self.background_worker_max_queue = BackgroundWorker::DEFAULT_MAX_QUEUE
       self.backtrace_cleanup_callback = nil
       self.max_breadcrumbs = BreadcrumbBuffer::DEFAULT_SIZE
@@ -654,5 +654,13 @@
         instance_eval(&hook)
       end
     end
+
+    def processor_count
+      if Concurrent.respond_to?(:usable_processor_count)
+        Concurrent.usable_processor_count
+      else
+        Concurrent.processor_count
+      end
+    end
   end
 end

sentry-ruby/spec/sentry/configuration_spec.rb

@@ -26,12 +26,12 @@
 
   describe "#background_worker_threads" do
     it "sets to have of the processors count" do
-      allow(Concurrent).to receive(:processor_count).and_return(8)
+      allow_any_instance_of(Sentry::Configuration).to receive(:processor_count).and_return(8)
       expect(subject.background_worker_threads).to eq(4)
     end
 
     it "sets to 1 with only 1 processor" do
-      allow(Concurrent).to receive(:processor_count).and_return(1)
+      allow_any_instance_of(Sentry::Configuration).to receive(:processor_count).and_return(1)
       expect(subject.background_worker_threads).to eq(1)
     end
   end