vert-x3/vertx-mqtt

Mqtt client Performance issues?

zhou-hao opened this issue · 0 comments

zhou-hao commented

vertx version: 4.3.1

code:

vertx-mqtt/src/main/java/io/vertx/mqtt/impl/MqttClientImpl.java

Line 919 in 5264cc4

log.debug(String.format("Incoming packet %s", msg));

String.format may be is a performance problem?

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