On Sat, Apr 5, 2008 at 1:15 AM, Nico Sabbi <[EMAIL PROTECTED]> wrote: > - limiting zfs's usage of memory to 256MB (appending to /etc/system > set zfs:zfs_arc_max = 0x8000000 > and rebooting, hopefully I did the right thing)
My gut reaction is that you've shot yourself in the foot by making the ARC cache so small. Have you done any tests with the default settings? The size of the ARC should vary on memory pressure from other apps running on the server, but should not exceed 1GB. Unless you know that the MySQL instance and other apps on the system will always consume 1.5GB of memory, you're limiting your performance. MySQL with InnoDB performs better with a smaller buffer pool size on ZFS, relying instead on the ZFS cache. Increasing the buffer pool size and decreasing the ARC cache size is the exact opposite of what you want to do. -B -- Brandon High [EMAIL PROTECTED] "The good is the enemy of the best." - Nietzsche _______________________________________________ opensolaris-discuss mailing list opensolaris-discuss@opensolaris.org
