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| author | Henning Baldersheim <balder@yahoo-inc.com> | 2017-08-14 14:04:33 +0200 |
|---|---|---|
| committer | Henning Baldersheim <balder@yahoo-inc.com> | 2017-08-14 14:04:33 +0200 |
| commit | ba277843ea99b4bb25df628d30f111798ff33f05 (patch) | |
| tree | 3ee6987efe1f9ef6d0032345fddf11ddc0c971fc | |
| parent | 52ece4e545b53a1946ff2b6d453630d0998a53da (diff) | |
Improve comments about ZSTD compression levels.
| -rw-r--r-- | searchcore/src/vespa/searchcore/config/proton.def | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/searchcore/src/vespa/searchcore/config/proton.def b/searchcore/src/vespa/searchcore/config/proton.def index 770c7bd960f..ac17efcab3f 100644 --- a/searchcore/src/vespa/searchcore/config/proton.def +++ b/searchcore/src/vespa/searchcore/config/proton.def @@ -214,6 +214,7 @@ summary.cache.compression.type enum {NONE, LZ4, ZSTD} default=LZ4 restart ## Control compression level of the summary while in cache. ## LZ4 has normal range 1..9 while ZSTD has range 1..19 +## 9 is a reasonable default for both summary.cache.compression.level int default=9 restart ## Control compression type of the summary while in memory during compaction @@ -222,6 +223,7 @@ summary.log.compact.compression.type enum {NONE, LZ4, ZSTD} default=ZSTD restart ## Control compression level of the summary while in memory during compaction ## LZ4 has normal range 1..9 while ZSTD has range 1..19 +## 9 is a reasonable default for both summary.log.compact.compression.level int default=9 restart ## Control compression type of the summary @@ -229,6 +231,8 @@ summary.log.chunk.compression.type enum {NONE, LZ4, ZSTD} default=ZSTD restart ## Control compression level of the summary ## LZ4 has normal range 1..9 while ZSTD has range 1..19 +## 9 is a reasonable default for both. Going above for ZSTD can give an improvement, +## but is better done in conjunction with increasing chunk size. summary.log.chunk.compression.level int default=9 restart ## Max size in bytes per chunk. |