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Remove port::MemoryBarrier() from table_reader_bench

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Summary: port::MemoryBarrier() is not recommended to use outside of port. Remove it.

Test Plan: run table_reader_bench

Reviewers: ljin, yhchiang, igor

Reviewed By: igor

Subscribers: leveldb

Differential Revision: https://reviews.facebook.net/D21075
This commit is contained in:
sdong 2014-08-05 11:24:01 -07:00
parent 1129921e9b
commit 02c4023666
1 changed files with 0 additions and 5 deletions
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5
table/table_reader_bench.cc
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@ -144,14 +144,12 @@ void TableReaderBenchmark(Options& opts, EnvOptions& env_options,
// Query one existing key;
std::string key = MakeKey(r1, r2, through_db);
uint64_t start_time = Now(env, measured_by_nanosecond);
port::MemoryBarrier();
if (!through_db) {
s = table_reader->Get(read_options, key, arg, DummySaveValue,
nullptr);
} else {
s = db->Get(read_options, key, &result);
}
port::MemoryBarrier();
hist.Add(Now(env, measured_by_nanosecond) - start_time);
} else {
int r2_len;
@ -167,7 +165,6 @@ void TableReaderBenchmark(Options& opts, EnvOptions& env_options,
std::string end_key = MakeKey(r1, r2 + r2_len, through_db);
uint64_t total_time = 0;
uint64_t start_time = Now(env, measured_by_nanosecond);
port::MemoryBarrier();
Iterator* iter;
if (!through_db) {
iter = table_reader->NewIterator(read_options);
@ -180,7 +177,6 @@ void TableReaderBenchmark(Options& opts, EnvOptions& env_options,
break;
}
// verify key;
port::MemoryBarrier();
total_time += Now(env, measured_by_nanosecond) - start_time;
assert(Slice(MakeKey(r1, r2 + count, through_db)) == iter->key());
start_time = Now(env, measured_by_nanosecond);
@ -195,7 +191,6 @@ void TableReaderBenchmark(Options& opts, EnvOptions& env_options,
assert(false);
}
delete iter;
port::MemoryBarrier();
total_time += Now(env, measured_by_nanosecond) - start_time;
hist.Add(total_time);
}