On Sun, 27 Jan 2008 19:11:33 +0100, MC <[EMAIL PROTECTED]> wrote: >> I didn't expect miracles, but since WinRAR gave 13% compression > > ZFS doesn't compress a block if it can't get a certain amount of return > on it. > > Since the default compression is less effective than RAR, you can bet > ZFS is seeing much less than 13% return.
What is the threshold, does anyone know that? It sound like a fair decision, though. Try to compress on write, increase perrformance on read by not compressing if there is little space to be gained. Wouldn't slow down writes compared to not having such a threshold either. Clever! > I expect everything is working properly, and you are just dealing with > well-compressed files :) Raw audio and uncompressed 16bit TIFF files (35mm negative scans) have high content entropy, so they are difficult to compress, that could be the culprit. > You could try setting the zfs compression to a stronger algorithm to see > if anything gets compressed that way. -- Joachim Hvorfor bruke fremmedord, når det finnes adekvate norske substitutter? _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
