On Wed, May 23, 2007 at 12:11:52PM +0200, Ivan Voras wrote: > Kris Kennaway wrote: > > >i.e. plain ZFS wants to use 3/4 of the *physical* RAM in the system > >(or all but 1GB). i.e. if you have 16GB in your system then zfs will > >try to use up to 15GB of it for caching leaving only 1GB for > >everything else (kernel + userland). > > > >I would actually be interested to know how Solaris gets away with > >this. It sounds like there must be less of a distinction between > >memory allocated to the kernel and to userland, and the ability for > >memory to flow between these two with some form of backpressure when > >userland wants memory that is currently gobbled by up solaris ZFS. > > Isn't it adequately explained with Sparc being a 64-bit platform? Not entirely, because solaris also runs on i386 (this is what was confusing me). I guess the answer is that ZFS has similar issues on Solaris i386 that it did on FreeBSD i386. KrisReceived on Wed May 23 2007 - 16:19:06 UTC
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