Memory usage tweaks

- Improve estimation to give a more reliable slop space in the arena
- Improve measurement by issuing sufficient throw-away calls on a channel to allow call size estimation to settle

1 files changed, 5 insertions, 0 deletions

diff --git a/test/core/memory_usage/client.c b/test/core/memory_usage/client.c
index 107abbc1b3..51ea51bc12 100644
--- a/test/core/memory_usage/client.c
+++ b/test/core/memory_usage/client.c
@@ -237,6 +237,11 @@ int main(int argc, char **argv) {
       0, grpc_slice_from_static_string("Reflector/GetAfterSvrCreation"));
 
   // warmup period
+  for (int i = 0; i < warmup_iterations; i++) {
+    send_snapshot_request(
+        0, grpc_slice_from_static_string("Reflector/SimpleSnapshot"));
+  }
+
   for (call_idx = 0; call_idx < warmup_iterations; ++call_idx) {
     init_ping_pong_request(call_idx + 1);
   }