aio_queue_async_request FIX
Mac OS X kernel configuration
sudo sysctl -w kern.aiomax=512 kern.aioprocmax=128 kern.aiothreads=16
then
restart VirtualBox. These settings will apply until you reboot. To
make the changes permanent, add/update the following lines in
/etc/sysctl.conf:
kern.aiomax=512
kern.aioprocmax=128
kern.aiothreads=16
Note:
you can probably set those limits even higher, as
documentation for Sybase
documentation for Sybase
Enabling
Host I/O caching for controllers that have local and file-based disks
attached seems to have fixed 99% of the issues described above.
The
following line enables the Host I/O cache:
VBoxManage
storagectl --name --hostiocache on
In
my case it was:
VBoxManage
storagectl pintail --name SATA --hostiocache on
This
probably also makes all the kern.aio* settings irrelevant.
Further
implications of enabling the Host I/O cache are described here: