I can become stronger by paying salaries. I have one billion employees!

Chapter 120 How did you get into Xuyuan? (Seeking monthly votes)

In April, Lashou.com held two group buying sales events on FoxTao, with cumulative sales reaching 5700 million yuan and an increase of 23 new customers.

Lashou.com paid 2000 million in marketing fees and 920 million in new customer acquisition rewards for this, but the return on investment was barely 2, which seems not worth it.

However, this 57 million in sales allowed Lashou to increase its market share by 3.5% in the industry competition in April, firmly suppressing Meituan, Wowotuan and Gaopeng.

Even Juhuasuan, which has tens of millions of daily active users, failed to surpass Lashou.com in its first month after entering the group buying market.

At first, Chen Yansen was paying attention to the competition in the group buying industry, but later he was busy preparing for the super sale day on April 22 and stopped paying attention to it.

With the joint efforts of the distribution team, event team and operation team, at the end of the three-day event, FoxTao's daily active users exceeded 300 million for the first time.

But Chen Yansen knew that based on the current weekly retention rate, it would be good if the daily active users could remain stable at 270 million by the end of the month.

At the end of the event, the total sales volume was 9300 million, but it was announced to the public as 1 million.

The gross profit margin dropped from 10% to 6.3%. Excluding the cost of the campaign purchase, the revenue from this activity was almost zero.

Fortunately, the fame has spread!

After more than half a year of market cultivation and user education, many potential users no longer regard shopping guide e-commerce as a scam website even if they have never used FoxTao.

Chen Yansen put down the "Introduction to Algorithms" and "C Primer Plus" in his hands, stood up and walked downstairs.

I’m still thinking about how to solve the problem of Android system lag.

In fact, Android system lag is not entirely due to software reasons, hardware problems also limit the smoothness.

The mobile phone processors in 2011 had low main frequency and few cores, making it difficult to complete calculations quickly, resulting in slow operation.

Moreover, the running memory of Android phones at that time was generally between 512MB and 1GB, and the body storage was mostly 4GB or 8GB. The reading and writing speeds were slow, and lag was inevitable.

Chen Yansen was unable to change the hardware, but at the system level, he wanted to develop a more efficient memory management algorithm to solve the shortcomings of memory usage and fragmentation.

Currently, he has two ideas for this problem. One is to optimize the process scheduling algorithm to improve the system response speed; the other is to adopt a generational garbage collection algorithm, adjust the triggering conditions and strategies of garbage collection, and improve the recovery efficiency.

Chen Yansen organized his thoughts, walked to the office area of ​​the Aurora R&D team, and called Wang Teng out.

"Brother Sen, the preliminary architecture of Aurora has been designed. We have three versions of the interface prototype. The system startup and file system modules have just passed testing..."

Wang Teng thought Chen Yansen came to ask about the development progress, so he took the initiative to report.

"I'm not here to hear about this. Do you have any good suggestions for solving the system lag and slow phone performance issues?"

Chen Yansen waved his hand, found a temporary meeting room, and the two sat down to talk.

"Usually, the approach is to reduce animation effects, lower screen resolution, and sacrifice some user experience, or start with hardware improvements, such as increasing memory or using a more powerful multi-core processor."

Wang Teng frowned and replied seriously based on his experience at OPPO.

“Is there a better way at the system level?”

Chen Yansen shrugged. He didn't want to sacrifice user experience, nor did he intend to use low-end processors to perfunctory users.

"Improve the memory management mechanism or optimize process scheduling, but OPPO and other domestic mobile phone manufacturers have tried it, and the results are not very good."

Wang Teng spoke while thinking, and pointed out the disadvantages of these two methods.

More than a decade later, Android phones can be used for three or four years without any lags. On the one hand, this is because Google has continuously upgraded the operating system and solved the defects of the initial version.

On the other hand, hardware has developed by leaps and bounds, and 16GB+1TB storage combinations have become the norm, so there is naturally no need to worry about lag.

"I have an idea. We can divide data into the new generation, the old generation, and the metaspace, creating different memory areas. Based on information such as garbage collection time, frequency, and memory usage, combined with intelligent algorithms, we can help users clean up garbage data in real time in the background..."

After listening to Wang Teng, Chen Yansen knew that current mobile phone manufacturers have no good solution to the problem of system lag.

He paused for a moment, then spoke slowly, explaining his ideas and how to implement the code.

As Wang Teng listened, his pupils gradually dilated and his face was filled with shock.

He remembered that just 20 days earlier, Chen Yansen hadn't learned much about programming and algorithms and had asked him to recommend relevant books. In less than a month, he had gone from zero foundation to a professional level, with clear thinking and the ability to provide reliable technical solutions.

Wang Teng's heart was in turmoil. He really wanted to ask Chen Yansen how he got admitted to Xucheng College?
With this kind of learning ability, not to mention Peking University and Tsinghua University, any of the top 985 universities in China can be chosen by Chen Yansen, right?
"Hmm? Did you remember it clearly?"

Seeing that Wang Teng was distracted, Chen Yansen raised his voice and asked.

"I'm listening, Brother Sen, please continue." Wang Teng came back to his senses and responded quickly.

"In short, what I want is not a copy of OPPO's Unique UI, but a brand new customized UI."

Chen Yansen patted Wang Teng on the shoulder and gave him gentle instructions.

"Okay, Brother Sen, I'll follow your ideas about the generational garbage collection algorithm and communicate with the developers immediately to implement it as soon as possible."

Wang Teng thought about it and felt that Chen Yansen’s plan was feasible, so he promised it seriously.

"Okay, get back to work."

After Chen Yansen finished speaking, he turned back to the second floor, picked up the book, and walked towards the library.

Recently, Chen Yansen often hangs out in the library. In addition to reading books on computer and software engineering, he occasionally flips through French vocabulary books.

With his experience in learning English, he found that he could master a new language in 7 days.

The first two days are spent focusing on learning vocabulary, grammatical structures, parts of speech and sentence patterns; on the third and fourth days, watch ten movies with original soundtracks; on the fifth and sixth days, integrate what you have learned and adjust your pronunciation, intonation and expression through deliberate practice. On the seventh day, you will basically be able to speak fluent English or French.

Africa is the third largest market for smartphones, with 70% of its adults under the age of 30. Their demand and curiosity for digital products are no less than those in Southeast Asia.

Chen Yansen certainly would not miss such a big market. Learning French in advance is also a preparation for market development.

After all, there are nearly 2 million people in this land who use French as their official language.

Chen Yansen took the book he had just borrowed and went to the reading room upstairs, reading it attentively.

If Chen Guobin saw this scene, he would probably be shocked, because Chen Yansen had never put much effort into studying since he was a child.

"Buzz buzz buzz——" the phone vibrated.

Chen Yansen pulled out his phone and answered the call. Before he could say anything, Liao Wei said, "Mr. Chen, the warehouse in Lighthouse Country is ready, and we've got the staff in place. When will the overseas shopping assistance feature on FoxTao be launched?"

"You can do it anytime, but don't let anything go wrong this time." Chen Yansen smiled, his tone relaxed but with a warning.

"Don't worry, I'll keep an eye on it myself." Liao Wei understood what Chen Yansen was worried about and quickly made his assurance.

The last fake liquor scandal caused Yunsu Express’s business volume to plummet.

Even though Chen Yansen stepped in, Jiushen.com still terminated its exclusive cooperation with Yunsu and chose another express delivery company instead.

Liao Wei knew clearly that if he couldn't satisfy Chen Yansen this time, he would probably have to struggle with Yunsu.

When others give you opportunities, you have to seize them!
"Okay, please bring the person in charge of order docking into the project team and get it online as soon as possible."

Chen Yansen said readily.

It has been almost two months since he proposed the idea of ​​an overseas transit warehouse, which is indeed a bit long.

However, he also knew that Liao Wei was very capable in being able to successfully rent a large overseas warehouse and recruit staff, and that someone else might not be able to do the same.

Chen Yansen took the phone, walked to the corridor outside the window, and called Zhuang Rui, asking him to put the overseas shopping transit function that had been developed in advance online.

"Okay, Brother Sen." Zhuang Rui received the instructions and immediately followed them. He first circled 20% of the users for testing to observe the conversion effect of the new function.

This will determine whether to continue cutting the full amount.

Fox Taobao has nearly 300 million daily active users. It is too risky to launch new features directly, so AB testing or unit testing is generally used to reduce the losses caused by potential bugs.

(End of this chapter)