[OmniOS-discuss] Pliant/Sandisk SSD ZIL

[Richard Elling]

On Feb 18, 2014, at 10:40 AM, Jim Klimov <jimklimov at cos.ru> wrote:

> On 2014-02-18 08:05, Richard Elling wrote:
>> Fortunately, most real workloads are not tar -x.
> 
> Oh, alas, on build farms they are. And the hordes of files produced
> as a result of "make" are not far behind. Oh, well, often they are
> behind - and subsequent accesses fail for a few seconds, just until
> something syncs down the pipe and back to the client. So the typical
> mantra is "gmake -j -k all; gmake all" for producing as many objects
> as we can first, and then cleaning up the mess sequentially :)

For build farms, why do you care about NFS sync writes? This is the
canonical case for sync=disabled, because there is no unique data.
 — richard

-- 

ZFS storage and performance consulting at http://www.RichardElling.com