Use 4KB default block size for bz1 #3853
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This commit changes the default block size from 64KB to 4KB for bz1. This was lowered because small blocks were being uncompressed, merged, recompressed, and inserted for a large portion of updates. This became slower and slower over time until it reached the 64KB threshold. We moved to the 4KB threshold in order to lower the impact of this recompression.
pauldix
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Aug 26, 2015
Use 4KB default block size for bz1
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Overview
This commit changes the default block size from 64KB to 4KB for
bz1. This was lowered because small blocks were being uncompressed, merged, recompressed, and inserted for a large portion of updates. This became slower and slower over time until it reached the 64KB threshold. We moved to the 4KB threshold in order to lower the impact of this recompression.