Path: utzoo!attcan!uunet!ncrlnk!ncrcae!ece-csc!mcnc!xanth!nic.MR.NET!tank!uwvax!rutgers!att!whuts!homxb!homxc!dwc From: dwc@homxc.UUCP (Malaclypse the Elder) Newsgroups: comp.unix.wizards Subject: Re: System V file systems Message-ID: <4079@homxc.UUCP> Date: 4 Nov 88 19:50:00 GMT References: <6413@daver.UUCP> <8332@alice.UUCP> <1988Oct27.173247.2789@utzoo.uucp> <917@vsi.COM> Organization: Legion of Dynamic Discord Lines: 17 In article <917@vsi.COM>, friedl@vsi.COM (Stephen J. Friedl) writes: > > How hard is it for an instantiation of UNIX to support multiple > kinds of blocksizes? I would think that keeping the blocksize in > the superblock would make it pretty easy, so I could use 1k blocks > for root, and (say) 8k for the /database partition with a dozen > files all > 1MB. Currently it seems like a big deal for them > to come out with a new supported blocksize. > the difficulty that i see is in the maintenance of the buffer cache. do you have separate buffer caches for each size or somehow share them. then there is the modification of file system maintenance programs (have you looked at fsck source lately). not such a big deal but a consideration. danny chen att!homxc!dwc