4 files changed, 0 insertions, 92 deletions

diff --git a/test/cpp/qps/client.h b/test/cpp/qps/client.h
index e958141d4e..5a9027a4a2 100644
--- a/test/cpp/qps/client.h
+++ b/test/cpp/qps/client.h
@@ -173,20 +173,6 @@ class Client {
         random_dist.reset(
             new ExpDist(load.poisson().offered_load() / num_threads));
         break;
-      case LoadParams::kUniform:
-        random_dist.reset(
-            new UniformDist(load.uniform().interarrival_lo() * num_threads,
-                            load.uniform().interarrival_hi() * num_threads));
-        break;
-      case LoadParams::kDeterm:
-        random_dist.reset(
-            new DetDist(num_threads / load.determ().offered_load()));
-        break;
-      case LoadParams::kPareto:
-        random_dist.reset(
-            new ParetoDist(load.pareto().interarrival_base() * num_threads,
-                           load.pareto().alpha()));
-        break;
       default:
         GPR_ASSERT(false);
     }
diff --git a/test/cpp/qps/interarrival.h b/test/cpp/qps/interarrival.h
index 0cc78533ce..0980d5e8ba 100644
--- a/test/cpp/qps/interarrival.h
+++ b/test/cpp/qps/interarrival.h
@@ -82,62 +82,6 @@ class ExpDist GRPC_FINAL : public RandomDistInterface {
   double lambda_recip_;
 };
 
-// UniformDist implements a random distribution that has
-// interarrival time uniformly spread between [lo,hi). The
-// mean interarrival time is (lo+hi)/2. For more information,
-// see http://en.wikipedia.org/wiki/Uniform_distribution_%28continuous%29
-
-class UniformDist GRPC_FINAL : public RandomDistInterface {
- public:
-  UniformDist(double lo, double hi) : lo_(lo), range_(hi - lo) {}
-  ~UniformDist() GRPC_OVERRIDE {}
-  double transform(double uni) const GRPC_OVERRIDE {
-    return uni * range_ + lo_;
-  }
-
- private:
-  double lo_;
-  double range_;
-};
-
-// DetDist provides a random distribution with interarrival time
-// of val. Note that this is not additive, so using this on multiple
-// flows of control (threads within the same client or separate
-// clients) will not preserve any deterministic interarrival gap across
-// requests.
-
-class DetDist GRPC_FINAL : public RandomDistInterface {
- public:
-  explicit DetDist(double val) : val_(val) {}
-  ~DetDist() GRPC_OVERRIDE {}
-  double transform(double uni) const GRPC_OVERRIDE { return val_; }
-
- private:
-  double val_;
-};
-
-// ParetoDist provides a random distribution with interarrival time
-// spread according to a Pareto (heavy-tailed) distribution. In this
-// model, many interarrival times are close to the base, but a sufficient
-// number will be high (up to infinity) as to disturb the mean. It is a
-// good representation of the response times of data center jobs. See
-// http://en.wikipedia.org/wiki/Pareto_distribution
-
-class ParetoDist GRPC_FINAL : public RandomDistInterface {
- public:
-  ParetoDist(double base, double alpha)
-      : base_(base), alpha_recip_(1.0 / alpha) {}
-  ~ParetoDist() GRPC_OVERRIDE {}
-  double transform(double uni) const GRPC_OVERRIDE {
-    // Note: Use 1.0-uni above to avoid div by zero if uni is 0
-    return base_ / pow(1.0 - uni, alpha_recip_);
-  }
-
- private:
-  double base_;
-  double alpha_recip_;
-};
-
 // A class library for generating pseudo-random interarrival times
 // in an efficient re-entrant way. The random table is built at construction
 // time, and each call must include the thread id of the invoker
diff --git a/test/cpp/qps/qps_driver.cc b/test/cpp/qps/qps_driver.cc
index 608181f77f..e4683e475f 100644
--- a/test/cpp/qps/qps_driver.cc
+++ b/test/cpp/qps/qps_driver.cc
@@ -68,11 +68,6 @@ DEFINE_string(client_type, "SYNC_CLIENT", "Client type");
 DEFINE_int32(async_client_threads, 1, "Async client threads");
 
 DEFINE_double(poisson_load, -1.0, "Poisson offered load (qps)");
-DEFINE_double(uniform_lo, -1.0, "Uniform low interarrival time (us)");
-DEFINE_double(uniform_hi, -1.0, "Uniform high interarrival time (us)");
-DEFINE_double(determ_load, -1.0, "Deterministic offered load (qps)");
-DEFINE_double(pareto_base, -1.0, "Pareto base interarrival time (us)");
-DEFINE_double(pareto_alpha, -1.0, "Pareto alpha value");
 
 DEFINE_int32(client_core_limit, -1, "Limit on client cores to use");
 
@@ -137,17 +132,6 @@ static void QpsDriver() {
   if (FLAGS_poisson_load > 0.0) {
     auto poisson = client_config.mutable_load_params()->mutable_poisson();
     poisson->set_offered_load(FLAGS_poisson_load);
-  } else if (FLAGS_uniform_lo > 0.0) {
-    auto uniform = client_config.mutable_load_params()->mutable_uniform();
-    uniform->set_interarrival_lo(FLAGS_uniform_lo / 1e6);
-    uniform->set_interarrival_hi(FLAGS_uniform_hi / 1e6);
-  } else if (FLAGS_determ_load > 0.0) {
-    auto determ = client_config.mutable_load_params()->mutable_determ();
-    determ->set_offered_load(FLAGS_determ_load);
-  } else if (FLAGS_pareto_base > 0.0) {
-    auto pareto = client_config.mutable_load_params()->mutable_pareto();
-    pareto->set_interarrival_base(FLAGS_pareto_base / 1e6);
-    pareto->set_alpha(FLAGS_pareto_alpha);
   } else {
     client_config.mutable_load_params()->mutable_closed_loop();
     // No further load parameters to set up for closed loop
diff --git a/test/cpp/qps/qps_interarrival_test.cc b/test/cpp/qps/qps_interarrival_test.cc
index 48585af756..4055c8a718 100644
--- a/test/cpp/qps/qps_interarrival_test.cc
+++ b/test/cpp/qps/qps_interarrival_test.cc
@@ -63,14 +63,8 @@ static void RunTest(RandomDistInterface &&r, int threads, std::string title) {
 }
 
 using grpc::testing::ExpDist;
-using grpc::testing::DetDist;
-using grpc::testing::UniformDist;
-using grpc::testing::ParetoDist;
 
 int main(int argc, char **argv) {
   RunTest(ExpDist(10.0), 5, std::string("Exponential(10)"));
-  RunTest(DetDist(5.0), 5, std::string("Det(5)"));
-  RunTest(UniformDist(0.0, 10.0), 5, std::string("Uniform(0,10)"));
-  RunTest(ParetoDist(1.0, 1.0), 5, std::string("Pareto(1,1)"));
   return 0;
 }