feat(Jprotobuf): Avoid create lot of CodedOutputStream instance! #185
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added 2 commits
August 12, 2022 15:41
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现在使用Netty的ByteBufOutputStream参考类似方法, 也可以实现对象缓存. 可以不用在堆内存里面产生大量的byte[]了! |
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合入到2.4.17版本发布 |
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压测在线3K. 每秒每人发30包 收20包. 每次ygc(11秒). 会创建两千万的CodedOutputStream 和 ByteArrayOutputStream. 和大量的字节数组对象
因为处理序列化和反序列化没有切换线程, 可以使用ThreadLocal做对象缓存优化. 优化后, 几乎可以忽略. 我这固定是160个对象. YGC时间也延长到18秒.
但是使用ByteBuffer构造CodedOutputStream 以及 CodedInputStream ,我没有找到好的优化方案