search for: rdiskette0

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2006 Dec 18
1
zfs/fstyp slows down recognizing pcfs formatted floppies
I''ve noticed that fstyp on a floppy media formatted with "pcfs" now needs somewhere between 30 - 100 seconds to find out that the floppy media is formatted with "pcfs". E.g. on sparc snv_48, I currently observe this: % time fstyp /vol/dev/rdiskette0/nomedia pcfs 0.01u 0.10s 1:38.84 0.1% zfs''s /usr/lib/fs/zfs/fstyp.so.1 seems to add about 40 seconds to that time, because it reads 1 mbyte from the floppy media (~ 2/3 of a 1.44MB floppy), only to find out that the floppy media does not contain a zfs pool: SPARC snv_48, before tamarack...