From 98455528adc7d67406173f2b16eca1c935ceff91 Mon Sep 17 00:00:00 2001
From: JoelKatz <DavidJoelSchwartz@GMail.com>
Date: Wed, 19 Jun 2013 09:36:47 -0700
Subject: [PATCH] Rate limit compactions with a 25ms pause after each complete
 file.

---
 src/cpp/leveldb/db/db_impl.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/cpp/leveldb/db/db_impl.cc b/src/cpp/leveldb/db/db_impl.cc
index cd765c523..359ab63c8 100644
--- a/src/cpp/leveldb/db/db_impl.cc
+++ b/src/cpp/leveldb/db/db_impl.cc
@@ -813,6 +813,10 @@ Status DBImpl::FinishCompactionOutputFile(CompactionState* compact,
           (unsigned long long) output_number,
           (unsigned long long) current_entries,
           (unsigned long long) current_bytes);
+
+      // rate-limit compaction file creation
+      // with a 25ms pause
+      env_->SleepForMicroseconds(25000);
     }
   }
   return s;