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From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To: Peter Pentchev <roam@ringlet.net>
Subject: Re: SMP Version of tar
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Cc: freebsd-hackers@freebsd.org, Brandon Falk <bfalk_bsd@brandonfa.lk>
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> Not necessarily.  If I understand correctly what Tim means, he's talking
> about an in-memory compression of several blocks by several separate
> threads, and then - after all the threads have compressed their
> respective blocks - writing out the result to the output file in order.
> Of course, this would incur a small penalty in that the dictionary would
> not be reused between blocks, but it might still be worth it.
all fine. i just wanted to point out that ungzipping normal standard gzip 
file cannot be multithreaded, and multithreaded-compressed gzip 
output would be different.