调整了读取RDB文件的方式，以降低IOPS（机械盘实在性能较差）；同时包含 sjet47 增加的 opCodeSlotInfo 类型的处理#66
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调整了读取RDB文件的方式，以降低IOPS（机械盘实在性能较差）；同时包含 sjet47 增加的 opCodeSlotInfo 类型的处理#66OceanFot wants to merge 1 commit intoHDT3213:masterfrom
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…数据，而是从内存（ Decoder.cache ）中获取； Decoder.cache 每次固定从磁盘取 1MiB 的数据，如果已取完则继续读取下一个 1MiB （以12GB、30万key的rdb文件测试，大约降低了99%的IOPS） 2. Decoder 中增加 opCodeSlotInfo 类型：感谢 sjet47 HDT3213#61
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修改了底层读取RDB文件时的处理方式（
core/utils.go）：readByte和readFull不再直接从磁盘读取数据，而是从内存（Decoder.cache）中获取；Decoder.cache每次固定从磁盘取1MiB的数据，如果已取完则继续读取下一个1MiB（以12GB、30万key的rdb文件测试，大约降低了99%的IOPS）core/decoder.go中增加opCodeSlotInfo类型：感谢 sjet47 feat(core/decoder): support opCode SlotInfo(244) #61