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ecs.r8y.4xlarge by Alibaba Cloud

ecs.r8y.4xlarge is a ecs.r8y family (16 vCPUs, 128 GiB RAM, 0 GB storage) server offered by Alibaba Cloud with 16 vCPUs, 128 GiB of memory and 0 GB of storage. The pricing starts at 0.1478 USD per hour.
16 vCPU
128 GiB Memory
Spare SCore
28968
(All-cores)
1818
(Single-core)

Specifications

Server Metadata

Vendor ID
alicloud
Name
ecs.r8y.4xlarge
Description
ecs.r8y family (16 vCPUs, 128 GiB RAM, 0 GB storage)
Family
ecs.r8y
Hw Virt
Status
active
Observed At
2026-07-30T03:27:34.752209

Availability

REGION / IDSPOTONDEMAND
Guangzhou (CN) / cn-guangzhou
0.1478 USD/h 0.6719 USD/h
Beijing (CN) / cn-beijing
0.1949 USD/h 0.6719 USD/h
Chengdu (CN) / cn-chengdu
- 0.6719 USD/h
Hangzhou (CN) / cn-hangzhou
- 0.6719 USD/h
Shanghai (CN) / cn-shanghai
- 0.6719 USD/h
Shenzhen (CN) / cn-shenzhen
- 0.6719 USD/h
Singapore (SG) / ap-southeast-1
0.2435 USD/h 0.974 USD/h

Processor

vCPUs
16
Hypervisor
KVM
CPU Allocation
Dedicated
CPU Cores
16
CPU Speed
2.75 GHz
CPU Architecture
arm64
CPU Manufacturer
Alibaba
CPU Family
Yitian
CPU Model
YiTian710
CPU L1D Cache
64 KiB
CPU L1D Cache Total
1 MiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
1 MiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
16 MiB
CPU L3 Cache
64 MiB
CPU L3 Cache Total
64 MiB
CPU Flags
fp, asimd, evtstrm, aes, pmull, sha1, sha2, crc32, atomics, fphp, asimdhp, cpuid, asimdrdm, jscvt, fcma, lrcpc, dcpop, sha3, sm3, sm4, asimddp, sha512, sve, asimdfhm, dit, uscat, ilrcpc, flagm, ssbs, sb, dcpodp, sve2, sveaes, svepmull, svebitperm, svesha3, svesm4, flagm2, frint, svei8mm, svebf16, i8mm, bf16, dgh, bti
Ecpus
15.9
Scalability
99.38

System Resources and Accelerators

MEMORY
Memory Amount
128 GiB
Memory Amount Actual
128 GiB
GPU
GPU Count
0
GPU Memory Min
0 MiB
GPU Memory Total
0 MiB
GPUs
    STORAGE
    Storage Size
    0 GB
    Storages
      NETWORK
      Network Speed Baseline
      10 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      An ARM64 memory-optimized instance featuring dedicated physical cores and high memory density for database and caching workloads.

      Memory OptimizedGeneral Purpose

      Alibaba Cloud ecs.r8y.4xlarge is an ARM64 memory-optimized instance powered by a 16-core Alibaba Yitian 710 processor running at 2.75 GHz. It features 128 GB of RAM, providing a high memory-to-vCPU ratio of 8 GB per core, with no local storage or GPU acceleration. Operating on the KVM hypervisor, it provides a baseline network bandwidth of 10 Gbps. Benchmark results indicate average performance across most categories, including a multi-core stress-ng score of 28967.52 and a Redis SET throughput of 25.52 million operations per second, though cryptographic performance is relatively weak. This instance offers qualitative cost efficiency for memory-intensive workloads that do not require local storage, making it suitable for database operations, caching layers, and static web serving.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.14Score
      Precomputed compound score for Cache Intensive workloads. A weighted average (geometric mean) of benchmark scores compared to their medians: score = ∏ (x_i / m_i)^(w_i / Σw). The score of 1.0 represents a synthetic baseline server with the median performance of each component benchmark; 0.5 means roughly half the performance; and 2.0 means twice the performance of that reference profile. Component weights: 50% Redis RPS (pipeline=1, SET), 20% Redis RPS (pipeline=16, SET), 10% PassMark Memory Mark (composite), 10% Memory bandwidth (read, 16 MB ~ L3), 10% PassMark single-thread CPU. Rationale for component selection: In-memory key-value store workload, mixing direct Redis performance metrics with memory speed and latency benchmarks, and single-core CPU performance profiles.
      Component Score Weight Impact
      Raw Reference Normalized Target Actual
      Redis RPS (pipeline=1, SET) 2,398,523 ops/sec 1,896,415 ops/sec 1.26 50.00% 50.00% +12.20%
      Redis RPS (pipeline=16, SET) 14,943,880 ops/sec 11,539,523 ops/sec 1.3 20.00% 20.00% +5.39%
      PassMark Memory Mark (composite) 2,731 2,411 1.13 10.00% 10.00% +1.23%
      Memory bandwidth (read, 16 MB ~ L3) 95,634 MB/sec 107,368 MB/sec 0.891 10.00% 10.00% -1.15%
      PassMark single-thread CPU 1,636 Mops/s 2,363 Mops/s 0.692 10.00% 10.00% -3.61%

      Memory Bandwidth

      Compression

      OpenSSL

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 12775
      Compression
      		 95427
      Encryption
      		 2615
      Extended Instructions
      		 12542
      Floating Point Maths
      		 74131
      Integer Maths
      		 88355
      Physics
      		 3640
      Prime Numbers
      		 176
      Single Threaded
      		 1636
      String Sorting
      		 69493

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2731
      Database Operations
      		 14714
      Memory Latency
      		 64
      Memory Read Cached
      		 22527
      Memory Read Uncached
      		 16889
      Memory Write
      		 20783

      Stress-ng Raw Scores

      Stress-ng Relative Multicore Performance

      LLM Inference Speed for Prompt Processing

      LLM Inference Speed for Text Generation

      Static Web Server

      Redis

      Alternatives

      Servers of the Same Family

      INSTANCEvCPUsMEMORYGPUs
      ecs.r8y.small 18 GiB0
      ecs.r8y.large 216 GiB0
      ecs.r8y.xlarge 432 GiB0
      ecs.r8y.2xlarge 864 GiB0
      ecs.r8y.8xlarge 32256 GiB0
      ecs.r8y.16xlarge 64512 GiB0

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      ecs.r8y.4xlarge FAQs