Category Archives: Uncategorized

About lessfs-2.0.0-prealpha2 Lessfs-2.0.0 pre-alpha2 is a development release only. It’s only purpose is to show what is coming and to receive some early feedback. Do not use this code for valuable data. Lessfs-2.0.0 pre-alpha2 implements some basic snapshot code. A … Continue reading →

This version of Lessfs introduces hamsterdb as an alternative to tokyocabinet. It also solves a memory leak as well as a problem with encryption.

Whenever we create something new for the first time, there is always this feeling afterwards that you could have done better. Lessfs is no exception to the rule. And for some time I have been wanting to rewrite the code. … Continue reading →

This release fixes a silly mistake the would lead to freeing a NULL pointer. Oops..

This release improves a part of the cache eviction code in lessfs. When you copy a large number of small files that exceed the read cache size then lessfs needs to remove entries from the cache. In this case the … Continue reading →

This release improves the performance of copying small files (metadata operations) by at least 30~50%. It now takes only 2.3 seconds to copy my /etc directory over to lessfs where it took 8 seconds with lessfs-1.2.2.2 time cp -ar /etc … Continue reading →

ZFS-FUSE, XFS, NTFS3G and LESSFS A PERFORMANCE COMPARISON Introduction Once in a while I run a set of tests to compare Lessfs with other filesystems. The results of these tests are used to determine where lessfs can be improved and … Continue reading →

This version of lessfs again improves metadata performance by approximately 8%.

This release improves the performance for metadata operations. A metadata cache layer has been added which typically increases copying of small files with a factor 12. It also fixes a memory leak when lessfs was used with encryption enabled. A … Continue reading →

This release enables lessfs background truncation tasks to resume after an umount or an unexpected shutdown. Background truncation is now enabled by default. Since lessfs uses the freelist database to store the state of truncation this database now needs to … Continue reading →