t = db.index_hammer1;
t.drop();

var bulk = t.initializeUnorderedBulkOp();
for (i = 0; i < 10000; i++)
    bulk.insert({x: i, y: i});
assert.writeOK(bulk.execute());

ops = [];

for (i = 0; i < 50; i++)
    ops.push({op: "find", ns: t.getFullName(), query: {x: {$gt: 5000}, y: {$gt: 5000}}});

ops[10] = {
    op: "createIndex",
    ns: t.getFullName(),
    key: {x: 1}
};
ops[20] = {
    op: "createIndex",
    ns: t.getFullName(),
    key: {y: 1}
};
ops[30] = {
    op: "dropIndex",
    ns: t.getFullName(),
    key: {x: 1}
};
ops[40] = {
    op: "dropIndex",
    ns: t.getFullName(),
    key: {y: 1}
};

res = benchRun({ops: ops, parallel: 5, seconds: 20, host: db.getMongo().host});
printjson(res);

assert.eq(10000, t.count());