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Add benchmark that measures cost of repeatedly opening the database.

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This commit is contained in:
Sanjay Ghemawat 2014-12-11 08:08:57 -08:00 committed by Chris Mumford
parent 34ad72e3e9
commit 77948e7eec
1 changed files with 14 additions and 1 deletions
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15
db/db_bench.cc
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@ -33,6 +33,7 @@
// readmissing -- read N missing keys in random order
// readhot -- read N times in random order from 1% section of DB
// seekrandom -- N random seeks
// open -- cost of opening a DB
// crc32c -- repeated crc32c of 4K of data
// acquireload -- load N*1000 times
// Meta operations:
@ -442,7 +443,11 @@ class Benchmark {
bool fresh_db = false;
int num_threads = FLAGS_threads;
if (name == Slice("fillseq")) {
if (name == Slice("open")) {
method = &Benchmark::OpenBench;
num_ /= 10000;
if (num_ < 1) num_ = 1;
} else if (name == Slice("fillseq")) {
fresh_db = true;
method = &Benchmark::WriteSeq;
} else if (name == Slice("fillbatch")) {
@ -702,6 +707,14 @@ class Benchmark {
}
}
void OpenBench(ThreadState* thread) {
for (int i = 0; i < num_; i++) {
delete db_;
Open();
thread->stats.FinishedSingleOp();
}
}
void WriteSeq(ThreadState* thread) {
DoWrite(thread, true);
}