Tune persistence dynamic throttling policy

Currently hardcoded to use values that have been empirically
observed to give good results. Can change this to be configurable
later if needed.

1 files changed, 2 insertions, 0 deletions

diff --git a/storage/src/vespa/storage/persistence/shared_operation_throttler.cpp b/storage/src/vespa/storage/persistence/shared_operation_throttler.cpp
index 7b05decb851..7db1a0ccdbb 100644
--- a/storage/src/vespa/storage/persistence/shared_operation_throttler.cpp
+++ b/storage/src/vespa/storage/persistence/shared_operation_throttler.cpp
@@ -59,6 +59,8 @@ DynamicOperationThrottler::DynamicOperationThrottler(uint32_t min_size_and_windo
       _pending_ops(0),
       _waiting_threads(0)
 {
+    _throttle_policy.setWindowSizeDecrementFactor(1.2);
+    _throttle_policy.setWindowSizeBackOff(0.95);
 }
 
 DynamicOperationThrottler::~DynamicOperationThrottler() = default;