Project

General

Profile

Actions

Feature #3137

closed

L2ARC compression

Added by Sašo Kiselkov almost 10 years ago. Updated over 8 years ago.

Status:
Resolved
Priority:
Normal
Category:
-
Start date:
2012-08-31
Due date:
% Done:

100%

Estimated time:
Difficulty:
Medium
Tags:
needs-triage
Gerrit CR:

Description

This issue ticket proposes adding transparent L2ARC compression to ZFS. The algorithm is hard-coded to be the new LZ4 compression algorithm, since L2ARC has very specific performance requirements (high decompression speed).
The feature is controlled via a new secondarycachecompress property on each dataset, allowing the user to selectively enable compression only on datasets which can use it.


Files

l2arc_compress_test.ods (24.6 KB) l2arc_compress_test.ods Sašo Kiselkov, 2012-09-09 09:43 PM
l2arc_compress_bench.ods (31.9 KB) l2arc_compress_bench.ods Sašo Kiselkov, 2013-01-16 12:12 AM
Actions

Also available in: Atom PDF