ecs.c8y.16xlarge by Alibaba Cloud

ecs.c8y.16xlarge is a ecs.c8y family (64 vCPUs, 128 GiB RAM, 0 GB storage) server offered by Alibaba Cloud with 64 vCPUs, 128 GiB of memory and 0 GB of storage. The pricing starts at 0.3438 USD per hour.
64 vCPU
128 GiB Memory
Spare SCore
114,685
(All-cores)
1,815
(Single-core)

Specifications

Server Metadata

Vendor ID
alicloud
Name
ecs.c8y.16xlarge
Description
ecs.c8y family (64 vCPUs, 128 GiB RAM, 0 GB storage)
Family
ecs.c8y
Hw Virt
Status
active
Observed At
2026-10-28T07:38:05.804343

Availability

REGION / IDSPOTONDEMAND
Ulanqab (CN) / cn-wulanchabu
0.3451 USD/h 1.19 USD/h
Chengdu (CN) / cn-chengdu
0.3438 USD/h 1.3222 USD/h
Shenzhen (CN) / cn-shenzhen
0.3438 USD/h 1.3222 USD/h
Shanghai (CN) / cn-shanghai
0.3834 USD/h 1.3222 USD/h
Beijing (CN) / cn-beijing
- 1.3222 USD/h
Guangzhou (CN) / cn-guangzhou
- 1.3222 USD/h
Hangzhou (CN) / cn-hangzhou
- 1.3222 USD/h
Singapore (SG) / ap-southeast-1
- 2.5114 USD/h

Processor

vCPUs
64
Hypervisor
KVM
CPU Allocation
Dedicated
CPU Cores
64
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
4 MiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
4 MiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
64 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
63.2
Scalability
98.75

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
      32 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      An arm64 compute-optimized server featuring sixty-four dedicated cores and high memory bandwidth for demanding multi-threaded and database workloads.

      Compute OptimizedGeneral Purpose

      Alibaba Cloud ecs.c8y.16xlarge is an arm64 compute-optimized server powered by a 64-core Alibaba YiTian710 processor running at 2.75 GHz. It features 128.0 GB of RAM, providing a 1:2 vCPU-to-memory ratio, and lacks local storage and GPU hardware. The instance delivers 32 Gbps of baseline network bandwidth. In benchmark testing, the server demonstrates strong multi-core capabilities, including a multi-core stress-ng score of 114685.05 and a top-tier PassMark memory score of 3017.93. Database performance is also strong, highlighted by 94.6 million operations per second in Redis SET tests. With its dedicated arm64 cores and high memory bandwidth, this instance is configured for multi-threaded workloads, database operations, and web serving, offering a resource-dense profile without the overhead of local storage.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      3Score
      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) 9,236,988 ops/sec 1,919,289 ops/sec 4.8 50.00% 50.00% +120.00%
      Redis RPS (pipeline=16, SET) 56,436,218 ops/sec 11,728,058 ops/sec 4.7 20.00% 20.00% +36.00%
      PassMark Memory Mark (composite) 3,018 2,416 1.2 10.00% 10.00% +1.80%
      Memory bandwidth (read, 16 MB ~ L3) 138,850 MB/sec 108,466 MB/sec 1.3 10.00% 10.00% +2.70%
      PassMark single-thread CPU 1,642 Mops/s 2,365 Mops/s 0.67 10.00% 10.00% -3.90%

      Memory Bandwidth

      Compression

      OpenSSL

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 37,273
      Compression
      		 378,523
      Encryption
      		 10,360
      Extended Instructions
      		 49,659
      Floating Point Maths
      		 293,103
      Integer Maths
      		 349,989
      Physics
      		 6,347
      Prime Numbers
      		 323
      Single Threaded
      		 1,642
      String Sorting
      		 230,302

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 3,018
      Database Operations
      		 27,692
      Memory Latency
      		 58
      Memory Read Cached
      		 22,292
      Memory Read Uncached
      		 19,312
      Memory Write
      		 22,464

      Stress-ng Stressors

      CPU integerSingleMultiScaling
      atomic
      		 135.67 22.64 0.17×
      bitops
      		 132,628 8,377,415 63.16×
      branch
      		 224,901 14,221,869 63.24×
      funccall
      		 1,673 105,773 63.22×
      funcret
      		 29,059 1,830,679 63.00×
      hash
      		 155,632 9,838,506 63.22×
      intmath
      		 34,371 2,166,313 63.03×
      nop
      		 399,790 25,312,996 63.32×
      prime
      		 433,648 27,447,619 63.29×
      rotate
      		 115,102 7,281,064 63.26×
      str
      		 610,725 38,608,333 63.22×
      wcs
      		 191,505 12,068,234 63.02×
      CryptographySingleMultiScaling
      crypt
      		 3,347 211,666 63.24×
      CompressionSingleMultiScaling
      jpeg
      		 598.26 37,207 62.19×
      zlib
      		 43.79 2,627 60.00×
      HypervisorSingleMultiScaling
      clock
      		 43,441 233,368 5.37×
      clone
      		 315.66 9,554 30.27×
      context
      		 3,832 244,025 63.69×
      cpu-sched
      		 60.13 3,951 65.71×
      eventfd
      		 94,135 6,054,314 64.32×
      fault
      		 17,010 136,931 8.05×
      fork
      		 2,803 22,711 8.10×
      getrandom
      		 54,273 3,433,073 63.26×
      hrtimers
      		 1,160,332 8,185,976 7.05×
      mprotect
      		 945,853 17,780,667 18.80×
      mtx
      		 6,795,936 3,273,788,948 481.73×
      munmap
      		 2,015 43,538 21.61×
      null
      		 624,583 39,630,180 63.45×
      pipe
      		 902,340 23,708,008 26.27×
      priv-instr
      		 813,624 9,773,144 12.01×
      resched
      		 1,895,838 10,315,415 5.44×
      switch
      		 152,996 16,892,438 110.41×
      timermix
      		 643,425 39,040,219 60.68×
      tlb-shootdown
      		 21,535 94,389 4.38×
      vdso
      		 36,751,025 2,299,083,028 62.56×
      vfork
      		 29,392 154,481 5.26×
      yield
      		 79,575,734 85,928,150 1.08×
      zero
      		 2,920,100 184,971,917 63.34×
      CPU float/SIMDSingleMultiScaling
      eigen
      		 1,867 117,541 62.97×
      expmath
      		 344.24 21,772 63.25×
      fma
      		 675,147 42,650,481 63.17×
      fp
      		 140.79 8,957 63.62×
      fractal
      		 6.8 428.17 62.97×
      hyperbolic
      		 339.38 21,463 63.24×
      logmath
      		 407.93 25,798 63.24×
      matrix
      		 5,806 366,305 63.09×
      matrix-3d
      		 974.46 5,985 6.14×
      monte-carlo
      		 247.16 15,455 62.53×
      mpfr
      		 1,270 80,124 63.09×
      powmath
      		 238.46 15,081 63.24×
      trig
      		 455.96 28,835 63.24×
      veccmp
      		 17,030 1,076,910 63.24×
      vecfp
      		 802.58 50,613 63.06×
      vecmath
      		 4,273 270,349 63.27×
      vecshuf
      		 881.64 52,967 60.08×
      vecwide
      		 23,857 1,382,239 57.94×
      AlgorithmsSingleMultiScaling
      bitonicsort
      		 8 511.59 63.95×
      bsearch
      		 335.2 21,120 63.01×
      bubblesort
      		 1 64 64.00×
      fibsearch
      		 379.16 23,937 63.13×
      heapsort
      		 11.6 729.78 62.91×
      hsearch
      		 6,126 385,697 62.97×
      insertionsort
      		 6.8 422.8 62.18×
      malloc
      		 2,355,283 105,566,405 44.82×
      mcontend
      		 215.75 148,263 687.20×
      mergesort
      		 33.2 2,065 62.19×
      qsort
      		 21.4 1,344 62.79×
      skiplist
      		 6,178 390,211 63.16×
      tree
      		 1.2 38.29 31.91×
      MemorySingleMultiScaling
      cache
      		 501,276 1,359,006 2.71×
      cachehammer
      		 1,705,614 33,915,694 19.88×
      cacheline
      		 70.76 4,674 66.06×
      l1cache
      		 268.56 16,645 61.98×
      memcpy
      		 634.57 40,149 63.27×
      memrate
      		 4.94 24.1 4.88×
      memthrash
      		 200.7 382.05 1.90×
      ptr-chase
      		 22,615,879 398,562,292 17.62×
      spinmem
      		 4,142 55,333 13.36×
      stream
      		 49.96 21,815 436.65×
      vm
      		 107,585 3,144,346 29.23×

      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.c8y.2xlarge 816 GiB0
      ecs.c8y.4xlarge 1632 GiB0
      ecs.c8y.8xlarge 3264 GiB0

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      ecs.c8y.16xlarge FAQs