ACK/cmnt: Xenial SRU v2 - nvme: improve performance for virtual Google NVMe devices

Tim Gardner tim.gardner at
Mon Nov 21 15:28:46 UTC 2016

On 11/21/2016 03:31 AM, Stefan Bader wrote:
> On 18.11.2016 18:42, Tim Gardner wrote:
>> Of course you are right about simply reverting 7c50722ad76b. I should start
>> drinking coffee again.
>> [PATCH 1/5] blk-mq: add blk_mq_alloc_request_hctx
>> [PATCH 2/5] nvme.h: add NVMe over Fabrics definitions
>> [PATCH 4/5] UBUNTU: SAUCE: nvme: improve performance for virtual NVMe
>> [PATCH 5/5] Revert "nvme: use the DMA_ATTR_NO_WARN attribute"
>> rtg
> Possibly be more happy about this if the Xenial variant got some positive
> testing beforehand...

I had an email from the tester indicating similar positive results as
Yakkety. Quoting, "Also looking good!  A quick run of fio benchmark 4k
random reads shows us going from, in my one test case 23k IOPs to a much
more palatable 180k IOPs."

Tim Gardner tim.gardner at

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