Date: Wed, 31 Oct 2007 21:01:14 -0500 From: Dan Nelson <dnelson@allantgroup.com> To: Eduardo Morras <nec556@retena.com> Cc: freebsd-hackers@freebsd.org Subject: Re: memory pool, rfc Message-ID: <20071101020113.GF3109@dan.emsphone.com> In-Reply-To: <4727D3B2000A88A6@> References: <4727D3B2000A88A6@>
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In the last episode (Nov 01), Eduardo Morras said: > I have some free time and want to do an memory pool. The idea is to > have a memory zone of N KB (or several MB) compressed in memory. I > have fast compression algorithms now that can release under BSD > licence that are faster than hd i/o, so it take less > compress/decompress a memory zone than read/write it to disk. I don't > know if it already exist for FreeBSD, so if it's already done i'll > try to improve it. [...] > For what can be used? > > - Memory pools in applications (like malloc) > - Ram disks > - Disk Cache (permit bigger disk cache) > - 'On the fly' filesystem compression (and it takes less read/write > compressed data than non-compressed) zfs already has modular compression algorithms; it would be rather easy to add a mozule for your method and compare it to the existing gzip and lzjb algorithms. -- Dan Nelson dnelson@allantgroup.com
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