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Set an appropriate List HashMap capacity to reduce the number of capacity expansions. #445

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Sep 18, 2024
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Set an appropriate List HashMap capacity to reduce the number of capacity expansions. #445

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2 changes: 1 addition & 1 deletion core/src/main/java/cn/edu/tsinghua/iot/benchmark/workload/GenerateDataWorkLoad.java
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Original file line number Diff line number Diff line change
Expand Up @@ -67,7 +67,7 @@ public long getBatchNumber() {
/** Add one row into batch, row contains data from all sensors */
protected List<Object> generateOneRow(int deviceIndex, int colIndex, long stepOffset)
throws WorkloadException {
List<Object> values = new ArrayList<>();
List<Object> values = new ArrayList<>(config.getSENSOR_NUMBER());
int index = (int) (Math.abs(stepOffset * (deviceIndex + 1)) % config.getWORKLOAD_BUFFER_SIZE());
if (colIndex == -1) {
for (int i = 0; i < config.getSENSOR_NUMBER(); i++) {
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2 changes: 1 addition & 1 deletion ...2.0/src/main/java/cn/edu/tsinghua/iot/benchmark/iotdb200/DMLStrategy/SessionStrategy.java
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Expand Up @@ -73,7 +73,7 @@ public class SessionStrategy extends DMLStrategy {
static final Config config = ConfigDescriptor.getInstance().getConfig();

private static final Map<String, Binary> binaryCache =
new ConcurrentHashMap<>(config.getWORKLOAD_BUFFER_SIZE());
new ConcurrentHashMap<>(config.getWORKLOAD_BUFFER_SIZE(), 1.00f);
private final Session session;
private final IoTDB iotdb;

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