RE: [zfs-discuss] Sparse file support in Java?

2006-05-15 Thread Gehr, Chuck R
of an existing hole. Chuck -Original Message- From: Bart Smaalders [mailto:[EMAIL PROTECTED] Sent: Monday, May 15, 2006 10:13 AM To: Gehr, Chuck R Subject: Re: [zfs-discuss] Sparse file support in Java? Gehr, Chuck R wrote: > Does anyone know if there is support in Java for

[zfs-discuss] Sparse file support in Java?

2006-05-14 Thread Gehr, Chuck R
Does anyone know if there is support in Java for creating holes in a sparse file (like one can do via fcntl(F_FREESP) in C)? Would like to avoid writing JNI code if there is already support for this somewhere in the JDK. Chuck ___ zfs-discuss ma

RE: [zfs-discuss] ZFS and databases

2006-05-11 Thread Gehr, Chuck R
R Cc: [EMAIL PROTECTED]; Boyd Adamson; ZFS filesystem discussion list Subject: RE: [zfs-discuss] ZFS and databases Gehr, Chuck R writes: > One word of caution about random writes. From my experience, they are > not nearly as fast as sequential writes (like 10 to 20 times slower) > un

RE: [zfs-discuss] ZFS and databases

2006-05-10 Thread Gehr, Chuck R
One word of caution about random writes. From my experience, they are not nearly as fast as sequential writes (like 10 to 20 times slower) unless they are carefully aligned on the same boundary as the file system record size. Otherwise, there is a heavy read penalty that you can easily observe by