Add note on compression choices for ZFS (#13)

* Add note on compression choices for ZFS * Apply suggestions from code review Thanks Andrei! Co-authored-by: Andrei Pechkurov <[email protected]> * Update guides/compression-zfs.md --------- Co-authored-by: Andrei Pechkurov <[email protected]> Co-authored-by: goodroot <[email protected]>
questdb · Jul 11, 2024 · 0b5318e · 0b5318e
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@@ -26,3 +26,19 @@ The exact commands depend on which version of ZFS you are running. Use the
 to customize your ZFS to meet your requirements.
 
 Once created, ZFS provides system-level compression.
+
+## Compression choices, LZ4 and zstd
+
+ZFS offers a number of compression choices when constructing the volume.
+
+[LZ4](https://github.com/lz4/lz4) offers a good balance of compression ratio versus increased CPU usage, and slowed performance. For general usage, we recommend using LZ4.
+
+[zstd](https://github.com/facebook/zstd) is another strong option. This will provide higher compression ratios, but take longer to decompress. We recommend this when storage size is an absolute priority, or for embedded-style deployments (i.e. Raspberry Pi, home IoT setups).
+
+As always, it is best to benchmark your choice to ensure that the performance matches your use case.
+
+:::note 
+
+We regularly run tests using *ZFS* with *LZ4* compression. If you encounter issues with other compression algorithms, please let us know.
+
+:::