Reiserfs, a unified balanced tree file system, is now available

root (reiser@ceic.com)
Sun, 20 Jun 1999 19:40:37 +0000 (/etc/localtime)

It is GPL, it is for Linux, it is both faster and slower than ext2
depending on the aspect of performance you measure, on the whole I think
it is faster if only because when ext2 is slower, it is often slower by
an order of magnitude (e.g. ext2 is not effective for large directories).

It is intended to make it feasible to add database and hypertext
functionality into the filesystem. The first step in doing that is
making the storage of both small files and large directories efficient.
We are currently being paid by an Internet search engine company to add
keyword search features into the filesystem.

It is thought to be fully stable now, it runs all benchmarks we know to
run without crashing, please find bugs.:-)

It is fully described at http://www.devlinux.com/namesys.

Dbench benchmark results.
-------------------------

The full description of dbench
can be found here: ftp://samba.org/pub/tridge/dbench/

1. Computer (1 processor ):
Intel Pentium pro, 200 Mhz, 128 Mb RAM,
Aha 2940 Ultra SCSI host adapter,
HDD Quantum VP32210W (2Gb).

ext2 reiserfs
(4k blocks) (tails off)
--------------------------------------
60 clients 2.495 MB/sec 2.581 MB/sec
10 clients 7.523 MB/sec 9.953 MB/sec
--------------------------------------

2. Computer (2 processors):
2 Intel Pentium II, 300MHz processors, 128 Mb RAM,
HDD FUJITSU MPC3102AT E (9Gb) CHS=19841/16/63, (U)DMA.

ext2 reiserfs
(1k block) (4k block)
--------------------------------------
40 clients 3.100 MB/sec 5.224 MB/sec
100 clients 1.984 MB/sec 2.264 MB/sec
--------------------------------------

Regards,

Hans

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