Shulou(Shulou.com)06/02 Report--

First, Qin Xiaohui's "DEV and SRE's consideration for others"

On March 26th, Didi Yun ✖️ chaos said that teacher Qin Xiaohui (Didi senior expert engineer) was invited to meet with you online to discuss "DVC and SRE's consideration for others". Guests mainly shared their views from two aspects: what is a good software architecture from the perspective of operation and maintenance, and what is a good platform for operation and maintenance from the perspective of research and development.

From the perspective of operation and maintenance, what is a good software architecture-in a word, there is no need for operation and maintenance to worry about, or at least less worry about.

A good software architecture has the following characteristics:

Easy to deploy: characterized by less environment dependence and automated configuration

Easy to expand capacity: it is characterized by stateless, stateful automatic routing of traffic and automatic registration into the system as far as possible

Easy to monitor: characterized by comprehensive log specification and revealing key indicators

Easy to recover: characterized by automatic disaster recovery, self-protection and plug-in self-healing

From the perspective of R & D, what is a good operation and maintenance platform-- in a word, the capacity is not enough, and the machine will come together.

A good operation and maintenance platform has four requirements:

Requirement 1: the products should be complete and complete

Requirement 2: high efficiency and stability

Requirement 3: be able to operate automatically

Requirement 4: moderate information disclosure

Second, Cai Jinping's "principle and practice of deploying IFX reasoning engine in AI"

On March 31, the second phase of the online salon cloud class began. Teacher Cai Jinping (Didi Machine Learning platform-expert engineer) was invited to introduce "the principle and practice of IFX inference engine deployment in AI".

It is divided into three aspects: introduction to architecture, intelligent acceleration engine IFX and Android deployment practice.

Getting started with Architecture

It is mainly introduced from the memory hierarchy.

Intelligent acceleration engine IFX

It has the characteristics of high requirements for algorithm deployment, diversity of DL framework and diversity of AI devices in complex business scenarios. This paper introduces IFX technology framework optimizer IFX-Transform, assembly optimization IFX-Autotuning, model slimming IFX-Slimming, performance analysis IFX-Profiling, system optimization AI landing process in IFX-System; service landing, AI performance comparison, and introduces it from Nvidia GPU and ARM.

Android deployment practice

Model preparation, model parsing and SDK generation and verification are introduced.

Third, Huaming's "work Planning two or three things"

On April 2, online salon Didi Yun ✖️ chaos said that in the third phase, Hua Ming, chief engineer of DiDi's operation and maintenance department, was invited to share some experiences on work planning.

Huaming teacher mainly from his own summary of the three major issues, some questions to share:

Three big problems

1) is the work plan useful? For a ship without direction, the wind in any direction is a headwind. Therefore, work planning is very important.

2) how to make a good work plan

Ask 9 questions about your work with the famous Helmeyer question. Mr. Hua Ming abstracted the nine questions into six steps: direction search, problem decomposition, scheme research, goal determination, goal decomposition and risk cost calculation.

3) the relationship between planning and implementation

When the plan is finished, we should also embrace the changes in the actual implementation process and make timely adjustments.

Some minor problems

When doing a PPT report, draw a sentence to summarize the content of the page, and the analysis of each page is to serve the final conclusion and understand the focus and purpose of each report.

Recommended learning

The Pyramid principle is a good book on planning and expression.

Follow the official account of Didi Yun Wechat

The background replied "326" to get teacher Qin Xiaohui.

"DVC and SRE's consideration of others."

The background replied "331" to get teacher Cai Jinping.

"the principle and practice of IFX inference engine deployment in AI"

The backstage replied "42" to get Mr. Hua Ming.

"two or three things in work planning"

You can get the information of this online salon.

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