Moinak Ghosh wrote: > Sriram Narayanan wrote: >> Hi all: >> >> I decided to give Nexenta Live CD a spin. Here are my observations. >> >> [...] > > I will try to explain this in layman's terms in the next Bosug meet. > For > now I can say that this I/O scheduler implements C-LOOK + deadline > + I/O coalescing. C-LOOK is a variant of C-SCAN. BTW ZFS also includes a deadline based I/O scheduler that reorders and merges I/O requests. This has beneficial effects on ZFS performance. The algorithm I used is somewhat different and suited for CDROM access.
Regards, Moinak.