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update read me

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siddontang 2014-05-09 09:46:50 +08:00
parent f02308217f
commit 81840c211c
1 changed files with 22 additions and 0 deletions
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leveldb/readme.md
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@ -6,3 +6,25 @@ simplify use leveldb in go
+ download leveldb and snappy source, uncompress and set source directory in build_deps.sh
+ . ./build_deps.sh
# Performance
for better performance, I change some leveldb configurations to build:
+ db/dbformat.h
// static const int kL0_SlowdownWritesTrigger = 8;
static const int kL0_SlowdownWritesTrigger = 16;
// static const int kL0_StopWritesTrigger = 12;
static const int kL0_StopWritesTrigger = 64;
+ db/version_set.cc
//static const int kTargetFileSize = 2 * 1048576;
static const int kTargetFileSize = 32 * 1048576;
//static const int64_t kMaxGrandParentOverlapBytes = 10 * kTargetFileSize;
static const int64_t kMaxGrandParentOverlapBytes = 20 * kTargetFileSize;