Alibaba Cloud persistent memory instance re6p It is an ECS model launched by Alibaba Cloud for large-scale online businesses. When the user Redis has a large amount of data, the memory capacity is blocked. At the same time, the CPU utilization is low and costs are wasted. The persistent memory scheme is used to deal with the pressure of big data and large memory in the information age, which can easily break through the problem of memory capacity. Taking e-commerce scenarios as an example, the total cost of ownership (TCO) of the company will be reduced by more than 40% after the use of persistent memory.
What is persistent memory
Persistent memory is the ECS product specification launched by AliCloud. This instance is based on Intel ® Aoteng ™ The persistent memory technology is built to achieve latency as low as 100 nanoseconds by improving the SSD performance to the quasi memory level. Alibaba Cloud elastic computing has virtualized Intel persistent memory through technical means, and can provide more memory externally. Its self built Redis database can achieve 50% price performance improvement on persistent memory instances, and the cost of parameter server Parameter server can be reduced by 35%.
The bottom layer of the persistent memory server is based on the Alibaba Cloud DPCA architecture. It integrates storage, network and virtualization together and then accelerates them with hardware, strengthening isolation while comprehensively improving product performance.
Alibaba Cloud persistent memory re6p page
Click the direct model activity page , see more details.
Alibaba Cloud persistent memory re6p high performance and high cost performance
AliCloud persistent memory instances retain the dual characteristics of memory and SSD. As memory, they can provide higher cost performance, which can increase the cost performance of a single GB of memory by 35%+; As a temporary cache disk, in SSD memory mode, a single disk can achieve one million IOPS and a read/write delay of 400 nanoseconds.
Alibaba Cloud persistent memory re6p features
- Intel ® Aoteng ™ Persistent memory helps reduce TCO and accelerate IT transformation to support the needs of the data age;
- Price performance ratio: replace ordinary memory, and reduce the price of single GB memory by 35%;
- Second level data recovery: data is saved persistently, memory data will not be lost after power failure, and service downtime and overload time will be greatly reduced;
- Ultra high performance: as an ordinary SSD, a single disk has 1 million IOPS, and the latency is as low as 100 nanoseconds;
- Based on DPCA architecture: software and hardware integration architecture, self developed DPCA chip, virtualization loss is 0;
- For more features, please View the direct model activity page
Alibaba Cloud persistent memory re6p configuration
Processor: Intel ® Xeon ® Platinum 8269CY (Cascade Lake), with a dominant frequency of 2.5 GHz and Rui Frequency of 3.2 GHz, has stable computing performance;
I/O optimization instance;
Support ESSD cloud disk SSD cloud disk and efficient cloud disk;
Only VPC is supported;
For more configurations, please Click to view AliCloud server documents 。
Alibaba Cloud persistent memory re6p server specifications
| Instance type |
vCPU |
DRAM memory (GiB) |
Network receiving and contracting capacity (10000 PPS) |
IPv6 support |
Number of connections (10000) |
| ecs.re6p.large |
two |
eight |
thirty |
yes |
Up to 25 |
| ecs.re6p.xlarge |
four |
sixteen |
fifty |
yes |
Up to 25 |
| ecs.re6p.2xlarge |
eight |
thirty-two |
eighty |
yes |
Up to 25 |
| ecs.re6p.13xlarge |
fifty-two |
one hundred and ninety-two |
three hundred |
yes |
ninety |
| ecs.re6p.26xlarge |
one hundred and four |
three hundred and eighty-four |
six hundred |
yes |
one hundred and eighty |
| ecs.re6p-redis.large |
two |
eight |
thirty |
yes |
Up to 25 |
| ecs.re6p-redis.xlarge |
four |
sixteen |
fifty |
yes |
Up to 25 |
| ecs.re6p-redis.2xlarge |
eight |
thirty-two |
eighty |
yes |
Up to 25 |
| ecs.re6p-redis.13xlarge |
fifty-two |
one hundred and ninety-two |
three hundred |
yes |
ninety |
Alibaba Cloud persistent memory re6p application scenario
Applicable scenarios:
- Redis database and other NoSQL databases (such as Cassandra MongoDB, etc.);
- Structured database (such as MySQL);
- I/O intensive applications such as e-commerce, games and media;
- Elasticsearch;
- Video live broadcast, instant messaging, room style online games with strong network;
- High performance relational database, online transaction processing (OLTP) system;
- For more applicable scenarios, please View the direct model activity page
Here are some scenarios to illustrate the specific effects of Alibaba Cloud persistent memory re6p.
Self built Redis
Alibaba Cloud Elastic Computing Department packages Redis into the instance. Customers can easily complete the deployment of Redis applications by executing a few lines of commands, reducing the TCO of a single GB of memory by 35% and improving the price performance by 25%.
Parameter server
The parameter server will involve reading and writing a large number of parameters during large-scale training, and each round of update iteration requires a very high delay. Persistent memory instances not only enable latency to reach the quasi memory level, but also are cheap, greatly reducing TCO; The persistent storage feature of persistent memory can also be used to realize second level recovery of data; Persistent memory instances can improve CPU utilization by increasing the memory capacity ratio, and achieve the effect of completing training tasks with fewer machines.
Applications with IO bottlenecks
The latency of the persistent memory server is 400 nanoseconds, which is two orders of magnitude lower than the fastest NVMeSSD at present; In terms of storage bandwidth and IOPS performance, single disk bandwidth IOPS increased by 2-4 times; According to the actual MySQL test, the user does not need to make any modifications to the application to obtain a 2-3 times reduction in response delay and a more stable long tail.
Alibaba Cloud persistent memory re6p new product benefits
1. 30% off for new products, 5 sets are limited
From now on to March 31, 2020, Click to purchase a new re6p server 1/2/3/6 months, you can enjoy a 70% discount on new products, and each user is limited to 5 sets.
2. Participating in the questionnaire can win 400 vouchers
Users who have purchased the re6p carefully complete the questionnaire（ Click to go directly to the questionnaire page ）, you will get a voucher reward of 400 yuan.
