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fix consistent hashing, both MD5 and Murmur,

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This commit is contained in:
Jonathan Leibiusky
2010-12-02 01:46:31 -03:00
parent c4263b0a2d
commit ad26ea23ad
5 changed files with 107 additions and 62 deletions
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43
src/test/java/redis/clients/jedis/tests/benchmark/ShardedBenchmark.java
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@@ -2,49 +2,38 @@ package redis.clients.jedis.tests.benchmark;
import java.io.IOException;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collection;
import java.util.List;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisShardInfo;
import redis.clients.jedis.ShardedJedis;
import redis.clients.jedis.tests.HostAndPortUtil;
import redis.clients.jedis.tests.HostAndPortUtil.HostAndPort;
import redis.clients.util.Hashing;
public class ShardedBenchmark {
private static HostAndPort hnp1 = HostAndPortUtil.getRedisServers().get(0);
private static HostAndPort hnp2 = HostAndPortUtil.getRedisServers().get(1);
private static final int TOTAL_OPERATIONS = 100000;
private static final int TOTAL_OPERATIONS = 10000000;
public static void main(String[] args) throws UnknownHostException,
IOException {
List<JedisShardInfo> shards = new ArrayList<JedisShardInfo>();
JedisShardInfo shard = new JedisShardInfo(hnp1.host, hnp1.port);
shard.setPassword("foobared");
shards.add(shard);
shard = new JedisShardInfo(hnp2.host, hnp2.port);
shard.setPassword("foobared");
shards.add(shard);
ShardedJedis jedis = new ShardedJedis(shards);
Collection<Jedis> allShards = jedis.getAllShards();
for (Jedis j : allShards) {
j.flushAll();
}
long begin = Calendar.getInstance().getTimeInMillis();
for (int n = 0; n <= TOTAL_OPERATIONS; n++) {
String key = "foo" + n;
jedis.set(key, "bar" + n);
jedis.get(key);
Hashing.MD5.hash(key);
}
long elapsed = Calendar.getInstance().getTimeInMillis() - begin;
jedis.disconnect();
System.out.println(((1000 * TOTAL_OPERATIONS) / elapsed) + " MD5 ops");
begin = Calendar.getInstance().getTimeInMillis();
for (int n = 0; n <= TOTAL_OPERATIONS; n++) {
String key = "foo" + n;
Hashing.MURMUR_HASH.hash(key);
}
elapsed = Calendar.getInstance().getTimeInMillis() - begin;
System.out.println(((1000 * TOTAL_OPERATIONS) / elapsed)
+ " Murmur ops");
System.out.println(((1000 * 2 * TOTAL_OPERATIONS) / elapsed) + " ops");
}
}