> As far as I know, the test was done on both UFS2 and ZFS and the
> difference was marginal.
As Adrian pointed out, there is an mmap(2) mutex in the way. Starting in
PostgreSQL 9.3, shared buffers are allocated out of mmap(2) instead of shm. shm
is only used to notify the PostgreSQL postmaster
Hi,
As far as I know, the test was done on both UFS2 and ZFS and the
difference was marginal.
Petr
On 18/03/2014 10:47 PM, Steven Hartland wrote:
> - Original Message - From: "Petr Janda"
>
>
>> Hi guys,
>>
>> Just want to share these pgbench results done by DragonFlyBSD, and would
>>
