pitrou commented on code in PR #14339:
URL: https://github.com/apache/arrow/pull/14339#discussion_r989787914
##########
cpp/src/arrow/testing/gtest_util.cc:
##########
@@ -767,22 +769,20 @@ void BusyWait(double seconds, std::function<bool()>
predicate) {
}
}
-Future<> SleepAsync(double seconds) {
- auto out = Future<>::Make();
- std::thread([out, seconds]() mutable {
- SleepFor(seconds);
- out.MarkFinished();
- }).detach();
- return out;
+// These threads will spend most of their time sleeping so there
+// is no need to base this on the # of cores. Instead it should be
+// high enough to ensure good concurrency when there is concurrent hardware
+static constexpr int kNumSleepThreads = 32;
+
+std::shared_ptr<ThreadPool> CreateSleepThreadPool() {
Review Comment:
Nit: `static`?
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