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ceph_test_keyvaluedb: add simple commit latency benchmark

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Signed-off-by: Sage Weil <sage@redhat.com>
This commit is contained in:
Sage Weil 2015-09-01 13:14:03 -04:00
parent 05d79b66cf
commit b7c5bd12b4
1 changed files with 33 additions and 0 deletions
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33
src/test/objectstore/test_kv.cc
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@ -113,6 +113,39 @@ TEST_P(KVTest, PutReopen) {
fini();
}
TEST_P(KVTest, BenchCommit) {
int n = 1024;
ASSERT_EQ(0, db->create_and_open(cout));
utime_t start = ceph_clock_now(NULL);
{
cout << "priming" << std::endl;
// prime
bufferlist big;
bufferptr bp(1048576);
bp.zero();
big.append(bp);
for (int i=0; i<30; ++i) {
KeyValueDB::Transaction t = db->get_transaction();
t->set("prefix", "big" + stringify(i), big);
db->submit_transaction_sync(t);
}
}
cout << "now doing small writes" << std::endl;
bufferlist data;
bufferptr bp(1024);
bp.zero();
data.append(bp);
for (int i=0; i<n; ++i) {
KeyValueDB::Transaction t = db->get_transaction();
t->set("prefix", "key" + stringify(i), data);
db->submit_transaction_sync(t);
}
utime_t end = ceph_clock_now(NULL);
utime_t dur = end - start;
cout << n << " commits in " << dur << ", avg latency " << (dur / (double)n)
<< std::endl;
}
INSTANTIATE_TEST_CASE_P(
KeyValueDB,