A persistent problem: managing pointers in NVM

A persistent problem: managing pointers in NVM Bittman et al., PLOS’19

At the start of November I was privileged to attend HPTS (the High Performance Transaction Systems) conference in Asilomar. If you ever get the chance to go, I highly recommend it. It’s a comparatively small gathering with a great mix of people, and fabulous discussions. A big thank you to everyone that I met there for making me feel so welcome.

On the last morning of the conference Daniel Bittman presented some of the work being done in the context of the Twizzler OS project to explore new programming models for NVM. It’s a really bold project (‘let’s rethink the OS from the ground up’) and generated a lot of lively discussion.

(Byte-addressable non-volatile memory,) NVM will fundamentally change the way hardware interacts, the way operating systems are designed, and the way applications operate on data.

The starting point is a set of three asumptions for an NVM-based programming model:

  1. Compared to traditional persistent media, NVM is fast. This means that the overheads of system calls become much more noticeable. Therefore any programming abstraction must be low latency and the kernel needs to be kept off the path Continue reading

What’s hot for Cisco in 2020

As the industry gets ready to gear up for 2020 things have been a  little disquieting in networking land.That’s because some key players – Arista and Juniper in particular – have been reporting business slowdowns as new deals have been smaller than expected and cloud providers haven’t been as free-spending as in the past.[Get regularly scheduled insights by signing up for Network World newsletters.] Worldwide IT spending has been on the slow side, Gartner said in October that worldwide IT spending is projected to total $3.7 trillion in 2019, an increase of 0.4% from 2018, the lowest growth forecast so far in 2019. The good news: global IT spending is expected to rebound in 2020 with forecast growth of 3.7%, primarily due to enterprise software spending, Gartner stated.To read this article in full, please click here

Google Cloud bare-metal initiative targets migrating legacy apps from on-prem

In the cloud-services market, bare metal offerings have lagged behind virtualized ones, mostly because the use of the cloud for things like elastic apps and developer environments are better suited to instances with a native operating system.The term “bare metal” simply means no software of any kind, not even a hypervisor. Customers provide their own operating environments, and the provider offers nothing more than CPUs, memory, and storage. Up to now, IBM has led the charge with bare-metal services because SoftLayer, the major data-center provider it acquired in 2014, was heavily involved in that business.To read this article in full, please click here

What’s hot for Cisco in 2020

As the industry gets ready to gear up for 2020 things have been a  little disquieting in networking land.That’s because some key players – Arista and Juniper in particular – have been reporting business slowdowns as new deals have been smaller than expected and cloud providers haven’t been as free-spending as in the past.[Get regularly scheduled insights by signing up for Network World newsletters.] Worldwide IT spending has been on the slow side, Gartner said in October that worldwide IT spending is projected to total $3.7 trillion in 2019, an increase of 0.4% from 2018, the lowest growth forecast so far in 2019. The good news: global IT spending is expected to rebound in 2020 with forecast growth of 3.7%, primarily due to enterprise software spending, Gartner stated.To read this article in full, please click here

Counting down the days using bash

With some pretty important holidays right around the corner, you might need to be reminded how much longer you have to prepare.Fortunately, you can get a lot of help from the date command. In this post, we’ll look at ways that date and bash scripts can tell you how many days there are between today and some event that you’re anticipating.[Get regularly scheduled insights by signing up for Network World newsletters.] First a couple hints at how this is going to work. The date command’s %j option is going to show you today’s date as a number between 1 and 366. January 1st, as you’d expect, will be displayed as 1 and December 31st will be 365 or 366 depending on whether it’s leap year. Go ahead and try it. You should see something like this:To read this article in full, please click here

What’s big in IT tech for the coming year

As the year winds down it's a good time to take a quick look ahead at what the new year might bring in order to be better prepared to make smart decisions.Nowhere is that more important than in IT, where the choices enterprise leaders make will have implications not only for themselves and their customers, but also for the overall economy, which depends more and more on corporate networks delivering business-critical services reliably.Here, we take a look how some of the most critical technologies will fare in 2020.What’s hot for Cisco in 2020 IDG Cisco is expected to continue its cloud, security, and SD-WANefforts in 2020, but there are hurdles to overcome. “Overall, I think it’s clear that Cisco needs to get into the cloud in a more effective way," said analyst Tom Nolle, president of CIMI Corp. "I think their recent reorg shows they understand that. Cloud Interconnect is a sideshow. What’s needed is infrastructure-independent development and deployment, which would relegate Cloud Interconnect to nothing but a network gateway.” (Read more.)To read this article in full, please click here

Data centers in 2020: Automation, cheaper memory

It’s that time of year again when those of us in the press make our annual prognostications for the coming year. Some things we saw coming; the rise of the cloud and the advance of SSD. Others, like the return of many cloud migrations to on-premises or the roaring comeback of AMD, went right by us. We do our best but occasionally there are surprises.So with that, let’s take a peek into the always cloudy (no pun intended) crystal ball and make 10 data-center-oriented predictions.IoT spawns data-center growth in urban areas This isn’t a hard prediction to make since it’s already happening. For the longest time, data centers were placed in the middle of nowhere near renewable energy (usually hydro), but need is going to force more expansion in major metro areas. IoT will be one driver but so will the increasing use of data center providers like Equinix and DRT as interconnection providers.To read this article in full, please click here

5G in 2020: Still just a private party

To hear the major mobile carriers talk about it, 5G is here. They’ve deployed it, it works, and it’s ready to start changing the world just about right away, with ultra-fast connectivity, low latency and a dramatically improved ability to handle huge numbers of different connections at once.Eventually, that will all be true – but, according to experts in the field, it isn’t yet, and most of it won’t take place within the coming calendar year. The 3GPP standards that will underpin all new-radio 5G technology are still not yet finalized, although that is expected to happen in early 2020, which means the much-touted 5G deployments in the U.S. are based partially on pre-standard technology.To read this article in full, please click here

What’s hot for Cisco in 2020

As the industry gets ready to gear up for 2020 things have been a  little disquieting in networking land.That’s because some key players – Arista and Juniper in particular – have been reporting business slowdowns as new deals have been smaller than expected and cloud providers haven’t been as free-spending as in the past.[Get regularly scheduled insights by signing up for Network World newsletters.] Worldwide IT spending has been on the slow side, Gartner said in October that worldwide IT spending is projected to total $3.7 trillion in 2019, an increase of 0.4% from 2018, the lowest growth forecast so far in 2019. The good news: global IT spending is expected to rebound in 2020 with forecast growth of 3.7%, primarily due to enterprise software spending, Gartner stated.To read this article in full, please click here

What’s big in IT tech for the coming year

As the year winds down it's a good time to take a quick look ahead at what the new year might bring in order to be better prepared to make smart decisions.Nowhere is that more important than in IT, where the choices enterprise leaders make will have implications not only for themselves and their customers, but also for the overall economy, which depends more and more on corporate networks delivering business-critical services reliably.Here, we take a look how some of the most critical technologies will fare in 2020.What’s hot for Cisco in 2020 IDG Cisco is expected to continue its cloud, security, and SD-WANefforts in 2020, but there are hurdles to overcome. “Overall, I think it’s clear that Cisco needs to get into the cloud in a more effective way," said analyst Tom Nolle, president of CIMI Corp. "I think their recent reorg shows they understand that. Cloud Interconnect is a sideshow. What’s needed is infrastructure-independent development and deployment, which would relegate Cloud Interconnect to nothing but a network gateway.” (Read more.)To read this article in full, please click here

Data centers in 2020: Automation, cheaper memory

It’s that time of year again when those of us in the press make our annual prognostications for the coming year. Some things we saw coming; the rise of the cloud and the advance of SSD. Others, like the return of many cloud migrations to on-premises or the roaring comeback of AMD, went right by us. We do our best but occasionally there are surprises.So with that, let’s take a peek into the always cloudy (no pun intended) crystal ball and make 10 data-center-oriented predictions.IoT spawns data-center growth in urban areas This isn’t a hard prediction to make since it’s already happening. For the longest time, data centers were placed in the middle of nowhere near renewable energy (usually hydro), but need is going to force more expansion in major metro areas. IoT will be one driver but so will the increasing use of data center providers like Equinix and DRT as interconnection providers.To read this article in full, please click here

SD-WAN Squares and Perplexing Planes

The latest arcane polygon is out in the SD-WAN space. Normally, my fortune telling skills don’t involve geometry. I like to talk to real people about their concerns and their successes. Yes, I know that the gardening people do that too. It’s just that no one really bothers to read their reports and instead makes all their decisions based on boring wall art.

Speaking of which, I’m going to summarize that particular piece of art here. Note this isn’t the same for copyright reasons but close enough for you to get the point:

4D8DB810-3618-44EA-8AA2-99EB7EAA3E45

So, if you can’t tell by the colors here, the big news is that Cisco has slipped out of the top Good part of the polygon and is now in the bottom Bad part (denoted by the red) and is in danger of going out of business and being the laughing stock of the networking community. Well, no, not so much that last part. But their implementation has slipped into the lower part of the quadrant where first-stage startups and cash-strapped companies live and wish they could build something.

Cisco released a report rebutting those claims and it talks about how Viptela is a huge part of Continue reading

VMware, Silver Peak Lead SD-WAN Pack; Cisco, Riverbed Lose Ground

Gartner's latest WAN Edge Magic Quadrant report has VMware and Silver Peak leading that market in...

Read More »

© SDxCentral, LLC. Use of this feed is limited to personal, non-commercial use and is governed by SDxCentral's Terms of Use (https://www.sdxcentral.com/legal/terms-of-service/). Publishing this feed for public or commercial use and/or misrepresentation by a third party is prohibited.

Amazon CTO Details Virtualization Journey

The decades-old framework of virtualization is unfit for modern cloud infrastructure and, as such,...

Read More »

© SDxCentral, LLC. Use of this feed is limited to personal, non-commercial use and is governed by SDxCentral's Terms of Use (https://www.sdxcentral.com/legal/terms-of-service/). Publishing this feed for public or commercial use and/or misrepresentation by a third party is prohibited.

Heavy Networking 492: Using Streaming Telemetry To Inform And Enhance Automation (Sponsored)

Streaming telemetry is an essential element in a network automation framework. On today's Heavy Networking, sponsor Juniper Networks joins the podcast to discuss how telemetry differs from traditional monitoring such as SNMP, how telemetry informs and enhances automation, and how to consume telemetry to make it actionable without overwhelming network operators (or your collectors). Our guest is Javier Antich from Juniper's Automation Software team.

The post Heavy Networking 492: Using Streaming Telemetry To Inform And Enhance Automation (Sponsored) appeared first on Packet Pushers.

The Latest Release of CA NetOps Delivers Superior SD-WAN Fault Management

The top reasons to upgrade to the latest release of CA NetOps fault management to ensure successful...

Read More »

© SDxCentral, LLC. Use of this feed is limited to personal, non-commercial use and is governed by SDxCentral's Terms of Use (https://www.sdxcentral.com/legal/terms-of-service/). Publishing this feed for public or commercial use and/or misrepresentation by a third party is prohibited.

Stuff The Internet Says On Scalability For December 6th, 2019

 Wake up! It's HighScalability time:

Formation of a single massive galaxy through time in the TNG50 cosmic simulation. It traces the simultaneous evolution of thousands of galaxies over 13.8 billion years of cosmic history. It does so with more than 20 billion particles representing dark matter, stars, cosmic gas, magnetic fields, and supermassive black holes. The calculation required 16,000 cores working together, 24/7, for more than a year. 

Do you like this sort of Stuff? Your support on Patreon is appreciated more than you can know. I also wrote Explain the Cloud Like I'm 10 for everyone who needs to understand the cloud (which is everyone). On Amazon it has 63 mostly 5 star reviews (140 on Goodreads). Please recommend it. You'll be a real cloud hero.

Number Stuff:

Don't miss all that the Internet has to say on Scalability, click below and become eventually consistent with all scalability knowledge (which means this post has many more items to read so please keep on reading)...
1 … 1,101 1,102 1,103 1,104 1,105 … 3,867