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 0.168 USD per hour.
16 vCPU
128 GiB Memory
Spare SCore
28,968
(All-cores)
1,818
(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
2026-10-28T07:38:05.803839

Availability

REGION / IDSPOTONDEMAND
Guangzhou (CN) / cn-guangzhou
0.168 USD/h 0.6719 USD/h
Beijing (CN) / cn-beijing
- 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
0.2289 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
ACCELERATORS
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    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

      1.1Score
      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 1,919,289 ops/sec 1.3 50.00% 50.00% +14.00%
      Redis RPS (pipeline=16, SET) 14,943,880 ops/sec 11,728,058 ops/sec 1.2 20.00% 20.00% +3.70%
      PassMark Memory Mark (composite) 2,731 2,416 1.1 10.00% 10.00% +0.96%
      Memory bandwidth (read, 16 MB ~ L3) 95,634 MB/sec 108,466 MB/sec 0.87 10.00% 10.00% -1.40%
      PassMark single-thread CPU 1,636 Mops/s 2,365 Mops/s 0.67 10.00% 10.00% -3.90%

      Memory Bandwidth

      Compression

      OpenSSL

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 12,775
      Compression
      		 95,427
      Encryption
      		 2,615
      Extended Instructions
      		 12,542
      Floating Point Maths
      		 74,131
      Integer Maths
      		 88,355
      Physics
      		 3,640
      Prime Numbers
      		 176
      Single Threaded
      		 1,636
      String Sorting
      		 69,493

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,731
      Database Operations
      		 14,714
      Memory Latency
      		 64
      Memory Read Cached
      		 22,527
      Memory Read Uncached
      		 16,889
      Memory Write
      		 20,783

      Stress-ng Stressors

      CPU integerSingleMultiScaling
      atomic
      		 149.5 60 0.40×
      bitops
      		 133,014 2,117,404 15.92×
      branch
      		 225,600 3,589,555 15.91×
      funccall
      		 1,678 26,671 15.89×
      funcret
      		 29,392 464,917 15.82×
      hash
      		 156,037 2,483,104 15.91×
      intmath
      		 34,211 546,786 15.98×
      nop
      		 401,195 6,389,568 15.93×
      prime
      		 434,825 6,928,444 15.93×
      rotate
      		 115,561 1,838,818 15.91×
      str
      		 611,325 9,742,868 15.94×
      wcs
      		 191,896 3,053,448 15.91×
      CryptographySingleMultiScaling
      crypt
      		 3,359 53,370 15.89×
      CompressionSingleMultiScaling
      jpeg
      		 589.96 9,272 15.72×
      zlib
      		 59.07 695.98 11.78×
      HypervisorSingleMultiScaling
      clock
      		 49,596 383,485 7.73×
      clone
      		 334.03 3,456 10.35×
      context
      		 3,841 62,860 16.37×
      cpu-sched
      		 55.88 1,035 18.52×
      eventfd
      		 97,173 2,119,226 21.81×
      fault
      		 15,727 111,210 7.07×
      fork
      		 2,987 18,150 6.08×
      getrandom
      		 54,438 867,800 15.94×
      hrtimers
      		 127,396 1,851,712 14.54×
      mprotect
      		 1,067,798 5,886,412 5.51×
      mtx
      		 6,872,120 791,183,530 115.13×
      munmap
      		 2,229 25,315 11.36×
      null
      		 626,125 10,161,727 16.23×
      pipe
      		 906,866 10,476,547 11.55×
      priv-instr
      		 813,150 10,784,526 13.26×
      resched
      		 3,902,929 2,838,391 0.73×
      switch
      		 160,660 4,998,133 31.11×
      timermix
      		 638,032 10,080,794 15.80×
      tlb-shootdown
      		 21,405 69,852 3.26×
      vdso
      		 36,697,188 586,176,101 15.97×
      vfork
      		 35,208 165,938 4.71×
      yield
      		 19,965,857 20,337,545 1.02×
      zero
      		 2,914,287 47,108,344 16.16×
      CPU float/SIMDSingleMultiScaling
      eigen
      		 1,873 29,795 15.91×
      expmath
      		 345.41 5,498 15.92×
      fma
      		 675,172 10,756,517 15.93×
      fp
      		 140.91 2,268 16.10×
      fractal
      		 6.8 108.21 15.91×
      hyperbolic
      		 340.37 5,423 15.93×
      logmath
      		 409.06 6,518 15.93×
      matrix
      		 5,827 92,717 15.91×
      matrix-3d
      		 915.82 4,170 4.55×
      monte-carlo
      		 247.03 3,950 15.99×
      mpfr
      		 1,268 20,254 15.97×
      powmath
      		 239.1 3,800 15.89×
      trig
      		 456.52 7,281 15.95×
      veccmp
      		 17,085 271,970 15.92×
      vecfp
      		 803.11 12,815 15.96×
      vecmath
      		 4,288 68,304 15.93×
      vecshuf
      		 890.88 13,998 15.71×
      vecwide
      		 23,947 385,287 16.09×
      AlgorithmsSingleMultiScaling
      bitonicsort
      		 8.2 128 15.61×
      bsearch
      		 336.58 5,354 15.91×
      bubblesort
      		 1 16 16.00×
      fibsearch
      		 380.28 6,056 15.93×
      heapsort
      		 11.6 184.79 15.93×
      hsearch
      		 6,081 97,194 15.98×
      insertionsort
      		 6.8 108.2 15.91×
      malloc
      		 1,905,609 30,551,575 16.03×
      mcontend
      		 247.49 35,828 144.77×
      mergesort
      		 32.6 524.78 16.10×
      qsort
      		 21.2 337.19 15.91×
      skiplist
      		 6,209 98,737 15.90×
      tree
      		 1 12.19 12.19×
      MemorySingleMultiScaling
      cache
      		 316,286 529,748 1.67×
      cachehammer
      		 1,563,101 20,032,408 12.82×
      cacheline
      		 70.09 1,342 19.15×
      l1cache
      		 270.36 4,279 15.83×
      memcpy
      		 636.81 10,147 15.93×
      memrate
      		 3.94 13.68 3.47×
      memthrash
      		 226.19 330.46 1.46×
      ptr-chase
      		 7,097,304 106,668,157 15.03×
      spinmem
      		 3,815 11,690 3.06×
      stream
      		 34.8 2,117 60.84×
      vm
      		 98,508 993,008 10.08×

      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

      INSTANCEvCPUsMEMORYAccelerators
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      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