Skip to content
Permalink
Branch: master
Find file Copy path
Find file Copy path
Fetching contributors…
Cannot retrieve contributors at this time
90 lines (83 sloc) 3.94 KB
amazon_s3_presentation_url amazon_s3_video_url author categories comments date excerpt featured_image_name image layout link post_format session_id session_track slideshare_embed_url slideshare_presentation_url slug speakers title video_length video_thumbnail wordpress_id youtube_video_url
connect
sfo17
false
2017-10-06 09:55:07 -0700
The BFQ I/O scheduler has been finally ported to blk-mq, and merged into the kernel (from 4.12). We start the first part of this presentation by recalling motivations and benefits of BFQ. Then we report the developments occurred since BFQ has been ported to blk-mq and upstreamed: fixes of important bugs, further throughput improvements for flash-based storage, public performance reports. In the second part of the presentation, we deal with the near future of BFQ, characterized by two great challenges. The first is to keep throughput high, while, at the same time, providing strong guarantees on fairness, bandwidth distribution and latency. The second great challenge is to achieve this combined goal with the low overhead imposed by modern devices. As a last part, we try to have a look at the future of BFQ, and of the latency issues that still affect many, if not most Linux-based systems
SFO17-302.jpg
featured file_name path
true
SFO17-302.jpg
/assets/images/featured-images/SFO17-302.jpg
resource-post
Video
SFO17-302
Kernel
sfo17-302
Paolo Valente
BFQ, fairness and low latency in block I/O - The Two Towers - SFO17-302
5220
None
6007

Session ID: SFO17-302 Session Name: BFQ, fairness and low latency in block I/O - The Two Towers - SFO17-302 Speaker: Paolo Valente Track: Kernel

★ Session Summary ★ The BFQ I/O scheduler has been finally ported to blk-mq, and merged into the kernel (from 4.12). We start the first part of this presentation by recalling motivations and benefits of BFQ. Then we report the developments occurred since BFQ has been ported to blk-mq and upstreamed: fixes of important bugs, further throughput improvements for flash-based storage, public performance reports. In the second part of the presentation, we deal with the near future of BFQ, characterized by two great challenges. The first is to keep throughput high, while, at the same time, providing strong guarantees on fairness, bandwidth distribution and latency. The second great challenge is to achieve this combined goal with the low overhead imposed by modern devices. As a last part, we try to have a look at the future of BFQ, and of the latency issues that still affect many, if not most Linux-based systems

★ Resources ★ Event Page: http://connect.linaro.org/resource/sfo17/sfo17-302/ Presentation: https://www.slideshare.net/linaroorg/bfq-fairness-and-low-latency-in-block-io-the-two-towers-sfo17302-80182518 Video: https://www.youtube.com/watch?v=Buc6smuh0RA

★ Event Details ★ Linaro Connect San Francisco 2017 (SFO17) 25-29 September 2017 Hyatt Regency San Francisco Airport


Keyword: 'http://www.linaro.org' 'http://connect.linaro.org'

Follow us on Social Media https://www.facebook.com/LinaroOrg https://twitter.com/linaroorg https://www.youtube.com/user/linaroorg?sub_confirmation=1 https://www.linkedin.com/company/1026961

Event Date: 27 Sept 2017

Speakers: Paolo Valente

Position:

You can’t perform that action at this time.