Re: [Help-tar] tar + lbzip2 proposal

[ERSEK Laszlo]

On Tue, 6 Oct 2009, Sergey Poznyakoff wrote:

> Hi Laszlo,

> The proposal is interesting, but the basic question is: does lbzip2
> offer the same functionality as bzip2?

It doesn't. lbzip2 isn't a drop-in replacement for bzip2 (and as far as I 
can tell, it never will be).

Cheers,
lacos


$ lbzip2 -h
lbzip2: Parallel bzip2 filter.
Copyright (C) 2008, 2009 Laszlo Ersek. Released under the GNU GPLv2+.
Version 0.15.

Usage:
1. lbzip2 [-d] [-n WORKER-THREADS] [-v] [-t]
2. lbzip2 -h

Options:
  -d                : Decompress.
  -n WORKER-THREADS : Set number of (de)compressor threads to
                      WORKER-THREADS. WORKER-THREADS must be in
                      [1, 1073741823]. If this option is not specified, the
                      environment variable LBZIP2_WORKER_THREADS is
                      consulted. If LBZIP2_WORKER_THREADS is unset or empty,
                      lbzip2 queries the system for the number of
                      online processors.
  -v                : Print condition variable statistics in the end.
                      If this option is not specified, the
                      environment variable LBZIP2_PRINT_STATS
                      is consulted: statistics will be printed if and
                      only if LBZIP2_PRINT_STATS has a non-empty value.
  -t                : Print memory allocation trace. If this option
                      is not specified, the environment variable
                      LBZIP2_TRACE_ALLOC is consulted: allocation trace will be
                      printed if and only if LBZIP2_TRACE_ALLOC has a non-empty
                      value. Check trace with "malloc_trace.pl".
  -h                : Print this help and exit successfully.