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>  ZSTD对写入性能有些影响（见数据）。 您好，，麻烦请问这个测试方法是怎样的呢？或者有测试脚本吗？我也测一下，看看怎么优化
> 2台8C32G 机器，1台安装iotdb，1台benchmark： iotdb参数配置： MAX_HEAP_SIZE="16G" wal_buffer_size_in_byte=1048576 default_storage_group_level=2 > > compressor=ZSTD和SNAPPY对比，ZSTD对写入性能影响大。 benchmark参数配置： DEVICE_NUMBER=2000 SENSOR_NUMBER=1000 CLIENT_NUMBER=100 GROUP_NUMBER=50 OPERATION_PROPORTION=70:1:1:1:1:0:1:1:1:1:1 BATCH_SIZE_PER_WRITE=10 IS_OUT_OF_ORDER=false LOOP=1000000 LINE_RATIO=0 SIN_RATIO=0 SQUARE_RATIO=0 RANDOM_RATIO=1 CONSTANT_RATIO=0 > > 可以试试这个配置，ZSTD对写入性能影响更大，压缩比和SNAPPY差不多。 > > >...
> Another question I would like to know, this there any reason that you choose the jni implement rather than the pure Java version. https://github.com/airlift/aircompressor/tree/master/src/main/java/io/airlift/compress/zstd > > Airlift said their...
> Hi, I see the latest version is v1.5.2-3 now, why don't you use it? And it may fix the bug that @liuzhen1207 mentioned. > > https://github.com/luben/zstd-jni/releases/tag/v1.5.2-3 sorry, I don't...
> > > > Another question I would like to know, this there any reason that you choose the jni implement rather than the pure Java version. https://github.com/airlift/aircompressor/tree/master/src/main/java/io/airlift/compress/zstd > >...
> > > Another question I would like to know, this there any reason that you choose the jni implement rather than the pure Java version. https://github.com/airlift/aircompressor/tree/master/src/main/java/io/airlift/compress/zstd > > >...
>  sorry, It's airlift bug in ver 0.20 https://github.com/airlift/aircompressor/issues/122 and It's fix in ver0.21 https://github.com/airlift/aircompressor/pull/135 I will change version
> sure, please do performance tests, THANKS
> > > > Actually... What I mean is do you have some tests result of this PR? 😆 I'm sorry, I misunderstood.😂
> SNAPPY > > ``` > 2022-07-28 18:26:02,294 [pool-6-IoTDB-Flush-1] INFO o.a.i.d.e.f.MemTableFlushTask:95 - The memTable size of SG root.test-0 is 1124046000, the avg series points num in chunk is 2310, total...