Re: [PATCH 1/3] nvme/pci: Start request after doorbell ring

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

To: Keith Busch <keith.busch@xxxxxxxxx>, linux-nvme@xxxxxxxxxxxxxxxxxxx, linux-block@xxxxxxxxxxxxxxx, Christoph Hellwig <hch@xxxxxx>, Jens Axboe <axboe@xxxxxxxxx>
Subject: Re: [PATCH 1/3] nvme/pci: Start request after doorbell ring
From: Sagi Grimberg <sagi@xxxxxxxxxxx>
Date: Mon, 25 Dec 2017 12:11:47 +0200
In-reply-to: <20171221204636.2924-2-keith.busch@intel.com>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.5.0

This is a performance optimization that allows the hardware to work on
a command in parallel with the kernel's stats and timeout tracking.


Curious to know what does this buy us?

Follow-Ups:
- Re: [PATCH 1/3] nvme/pci: Start request after doorbell ring
  - From: Keith Busch

References:
- [PATCH 0/3] Performance enhancements
  - From: Keith Busch
- [PATCH 1/3] nvme/pci: Start request after doorbell ring
  - From: Keith Busch

Prev by Date: Re: [PATCH 2/3] nvme/pci: Remove cq_vector check in IO path
Next by Date: Re: [PATCH 1/3] nvme/pci: Start request after doorbell ring
Previous by thread: Re: [PATCH 1/3] nvme/pci: Start request after doorbell ring
Next by thread: Re: [PATCH 1/3] nvme/pci: Start request after doorbell ring
Index(es):
- Date
- Thread

[Index of Archives] [Linux RAID] [Linux SCSI] [Linux ATA RAID] [IDE] [Linux Wireless] [Linux Kernel] [ATH6KL] [Linux Bluetooth] [Linux Netdev] [Kernel Newbies] [Security] [Git] [Netfilter] [Bugtraq] [Yosemite News] [MIPS Linux] [ARM Linux] [Linux Security] [Device Mapper]

Powered by Linux