private static void CreateSimplesKeyValue(LMDBEnvironment env, int count)
{
Logger.LogInfo("CreateSimplesKeyValue");
DateTime dtStart = DateTime.Now;
LMDBTransaction tx = env.BeginTransaction(TransactionBeginFlags.NoSync);
using (var db = tx.OpenDatabase(null,
new DatabaseConfiguration {
Flags = DatabaseOpenFlags.Create
}))
{
Logger.LogInfo("count:" + count);
for (int i = 0; i < count; i++)
{
string key = String.Format("key_{0}", i);
string value = String.Format("value_{0}", i);
tx.Put(db, key, value);
}
tx.Commit();
}
DateTime dtStop = DateTime.Now;
TimeSpan ts = dtStop - dtStart;
string str = String.Format("Time elapsed for set:{0} ms", ts.TotalMilliseconds);
Logger.LogInfo(str);
}
private static void GetSimplesKeyValue(LMDBEnvironment env, int count)
{
Logger.LogInfo("GetSimplesKeyValue");
DateTime dtStart = DateTime.Now;
LMDBTransaction tx = env.BeginTransaction(TransactionBeginFlags.ReadOnly);
using (LMDBDatabase db = tx.OpenDatabase(null))
{
Logger.LogInfo("count:" + count);
for (int i = 0; i < count; i++)
{
string key = String.Format("key_{0}", i);
//string value = String.Format("value_{0}", i);
var value = tx.Get(db, key);
if (i % 10000 == 0)
{
string strD = String.Format("key:{0} => value:{1}", key, value);
Logger.LogInfo(strD);
}
}
}
DateTime dtStop = DateTime.Now;
TimeSpan ts = dtStop - dtStart;
string str = String.Format("Time elapsed for get:{0} ms", ts.TotalMilliseconds);
Logger.LogInfo(str);
}
private static void EnumData(LMDBEnvironment env)
{
Logger.LogInfo("EnumData");
DateTime dtStart = DateTime.Now;
LMDBTransaction tx = env.BeginTransaction(TransactionBeginFlags.NoSync);
using (LMDBDatabase db = tx.OpenDatabase(null,
new DatabaseConfiguration {
Flags = DatabaseOpenFlags.Create
}))
{
var cur = tx.CreateCursor(db);
//cur.MoveToFirst();
int count1 = 0;
while (cur.MoveNext())
{
var fKey = Encoding.UTF8.GetString(cur.Current.Key);
var fValue = Encoding.UTF8.GetString(cur.Current.Value);
if (count1 % 10000 == 0)
{
string str3 = String.Format("count:{2} - key:{0} => value:{1}", fKey, fValue, count1);
Logger.LogInfo(str3);
}
++count1;
}
tx.Commit();
}
DateTime dtStop = DateTime.Now;
TimeSpan ts = dtStop - dtStart;
string str = String.Format("Time elapsed for enum:{0} ms", ts.TotalMilliseconds);
Logger.LogInfo(str);
}