ecs.r6a.2xlarge by Alibaba Cloud

ecs.r6a.2xlarge is a ecs.r6a family (8 vCPUs, 64 GiB RAM, 0 GB storage) server offered by Alibaba Cloud with 8 vCPUs, 64 GiB of memory and 0 GB of storage. The pricing starts at 0.369 USD per hour.
8 vCPU
64 GiB Memory
Spare SCore
3,069
(All-cores)
767
(Single-core)

Specifications

Server Metadata

Vendor ID
alicloud
Name
ecs.r6a.2xlarge
Description
ecs.r6a family (8 vCPUs, 64 GiB RAM, 0 GB storage)
Family
ecs.r6a
Hw Virt
Average Time To Start
10.5
Status
active
Observed At
2026-10-29T06:18:51.964198

Availability

REGION / IDSPOTONDEMAND
Beijing (CN) / cn-beijing
- 0.369 USD/h
Hangzhou (CN) / cn-hangzhou
- 0.369 USD/h
Shenzhen (CN) / cn-shenzhen
- 0.369 USD/h

Processor

vCPUs
8
Hypervisor
KVM
CPU Allocation
Dedicated
CPU Cores
4
CPU Speed
2.6 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU Model
7H12
CPU L1D Cache
32 KiB
CPU L1D Cache Total
128 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
128 KiB
CPU L2 Cache
512 KiB
CPU L2 Cache Total
2 MiB
CPU L3 Cache
16 MiB
CPU L3 Cache Total
16 MiB
CPU Flags
fpu, vme, de, pse, tsc, msr, pae, mce, cx8, apic, sep, mtrr, pge, mca, cmov, pat, pse36, clflush, mmx, fxsr, sse, sse2, ht, syscall, nx, mmxext, fxsr_opt, pdpe1gb, rdtscp, lm, constant_tsc, rep_good, nopl, nonstop_tsc, cpuid, extd_apicid, tsc_known_freq, pni, pclmulqdq, monitor, ssse3, fma, cx16, sse4_1, sse4_2, x2apic, movbe, popcnt, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, cmp_legacy, cr8_legacy, abm, sse4a, misalignsse, 3dnowprefetch, osvw, topoext, perfctr_core, ssbd, ibpb, stibp, vmmcall, fsgsbase, tsc_adjust, bmi1, avx2, smep, bmi2, rdseed, adx, smap, sha_ni, xsaveopt, xsavec, xgetbv1, arat
Ecpus
4
Scalability
50

System Resources and Accelerators

MEMORY
Memory Amount
64 GiB
Memory Amount Actual
64 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
      2.5 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      A memory-optimized virtual server featuring a high memory-to-vCPU ratio for database operations and caching workloads without local storage.

      Memory OptimizedGeneral Purpose

      Alibaba Cloud ecs.r6a.2xlarge is a memory-optimized virtual server instance utilizing the KVM hypervisor and x86_64 architecture. It is configured with 8 dedicated vCPUs from an AMD EPYC 7H12 processor running at 2.6 GHz, paired with 64.0 GB of RAM, resulting in a high 8:1 memory-to-vCPU ratio. The instance does not include local storage or GPU accelerators and features a baseline network bandwidth of 2 Gbps. Performance benchmarks show average capabilities in database operations, Redis SET transactions, and software compilation, though raw CPU compute and uncached memory bandwidth represent notable performance tradeoffs. This profile makes the instance qualitatively cost-efficient for memory-intensive, moderately compute-demanding workloads such as database hosting, caching layers, and general-purpose web serving.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.39Score
      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) 585,470 ops/sec 1,919,289 ops/sec 0.31 50.00% 50.00% -44.00%
      Redis RPS (pipeline=16, SET) 4,042,932 ops/sec 11,728,058 ops/sec 0.33 20.00% 20.00% -20.00%
      PassMark Memory Mark (composite) 2,504 2,416 1 10.00% 10.00% 0.00%
      Memory bandwidth (read, 16 MB ~ L3) 31,681 MB/sec 108,466 MB/sec 0.29 10.00% 10.00% -12.00%
      PassMark single-thread CPU 2,119 Mops/s 2,365 Mops/s 0.88 10.00% 10.00% -1.30%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,301

      Geekbench Multi-Core

      Score: 4,891

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 10,308
      Compression
      		 121,546
      Encryption
      		 8,458
      Extended Instructions
      		 7,004
      Floating Point Maths
      		 16,002
      Integer Maths
      		 26,808
      Physics
      		 857
      Prime Numbers
      		 38
      Single Threaded
      		 2,119
      String Sorting
      		 16,804

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,504
      Database Operations
      		 2,710
      Memory Latency
      		 49
      Memory Read Cached
      		 24,270
      Memory Read Uncached
      		 11,919
      Memory Write
      		 11,097

      Stress-ng Stressors

      CPU integerSingleMultiScaling
      atomic
      		 392.71 363.27 0.93×
      bitops
      		 120,521 607,713 5.04×
      branch
      		 152,757 1,052,844 6.89×
      funccall
      		 499.81 2,681 5.36×
      funcret
      		 14,045 85,371 6.08×
      hash
      		 130,887 820,496 6.27×
      intmath
      		 19,387 84,714 4.37×
      nop
      		 235,519 952,939 4.05×
      prime
      		 340,102 1,820,449 5.35×
      rotate
      		 59,686 248,562 4.16×
      str
      		 659,280 3,891,173 5.90×
      wcs
      		 502,685 2,270,007 4.52×
      CryptographySingleMultiScaling
      crypt
      		 2,840 12,377 4.36×
      CompressionSingleMultiScaling
      jpeg
      		 620.75 3,486 5.62×
      zlib
      		 55.09 363.28 6.59×
      HypervisorSingleMultiScaling
      clock
      		 18,989 103,247 5.44×
      clone
      		 289.43 993.3 3.43×
      context
      		 2,967 20,331 6.85×
      cpu-sched
      		 72.89 511.79 7.02×
      eventfd
      		 46,797 361,081 7.72×
      fault
      		 7,850 44,878 5.72×
      fork
      		 3,561 21,600 6.07×
      getrandom
      		 35,875 195,566 5.45×
      hrtimers
      		 388,452 728,589 1.88×
      mprotect
      		 941,109 1,297,813 1.38×
      mtx
      		 18,403,561 343,316,997 18.65×
      munmap
      		 2,352 13,800 5.87×
      null
      		 371,931 2,406,986 6.47×
      pipe
      		 1,470,733 2,304,516 1.57×
      priv-instr
      		 384,090 2,591,895 6.75×
      resched
      		 1,859,554 806,339 0.43×
      switch
      		 127,385 771,676 6.06×
      timermix
      		 158,921 1,084,290 6.82×
      tlb-shootdown
      		 14,835 25,201 1.70×
      tsc
      		 654,272 5,049,911 7.72×
      usersyscall
      		 278,115 1,875,964 6.75×
      vdso
      		 62,449,701 351,725,220 5.63×
      vfork
      		 25,171 107,363 4.27×
      x86syscall
      		 4,515,832 29,421,956 6.52×
      yield
      		 3,294,679 3,183,135 0.97×
      zero
      		 1,987,684 12,614,203 6.35×
      CPU float/SIMDSingleMultiScaling
      eigen
      		 12,397 59,013 4.76×
      expmath
      		 2,777 17,458 6.29×
      fma
      		 738,372 4,661,620 6.31×
      fp
      		 207.98 1,236 5.94×
      fractal
      		 6.4 40.2 6.28×
      hyperbolic
      		 3,634 21,830 6.01×
      logmath
      		 4,089 23,944 5.86×
      matrix
      		 2,738 19,734 7.21×
      matrix-3d
      		 495.99 954.6 1.92×
      monte-carlo
      		 161.37 1,032 6.40×
      mpfr
      		 1,268 6,570 5.18×
      powmath
      		 1,339 8,638 6.45×
      trig
      		 1,553 9,507 6.12×
      veccmp
      		 17,011 82,663 4.86×
      vecfp
      		 1,386 8,391 6.06×
      vecmath
      		 3,357 21,671 6.45×
      vecshuf
      		 478.33 2,382 4.98×
      vecwide
      		 26,493 125,005 4.72×
      AlgorithmsSingleMultiScaling
      bitonicsort
      		 7 33.6 4.80×
      bsearch
      		 225.37 1,132 5.02×
      bubblesort
      		 0.8 3.2 4.00×
      fibsearch
      		 264.56 1,329 5.02×
      heapsort
      		 8.6 48.2 5.60×
      hsearch
      		 5,513 27,344 4.96×
      insertionsort
      		 6.6 32 4.85×
      malloc
      		 2,428,924 14,782,685 6.09×
      mcontend
      		 207.71 1,179 5.67×
      mergesort
      		 26 158.19 6.08×
      qsort
      		 17.4 105 6.03×
      skiplist
      		 5,516 35,166 6.37×
      tree
      		 1.8 4.8 2.67×
      MemorySingleMultiScaling
      cache
      		 515,732 1,110,760 2.15×
      cachehammer
      		 510,211 3,638,967 7.13×
      cacheline
      		 53.22 431.64 8.11×
      l1cache
      		 192.97 771.42 4.00×
      memcpy
      		 355.74 1,500 4.22×
      memrate
      		 1.75 3.07 1.75×
      memthrash
      		 100.95 232.18 2.30×
      ptr-chase
      		 28,139,675 61,708,209 2.19×
      spinmem
      		 128.79 193.35 1.50×
      stream
      		 153.26 1,585 10.34×
      vm
      		 54,350 282,449 5.20×

      Stress-ng Raw Scores

      Stress-ng Relative Multicore Performance

      Static Web Server

      Redis

      Alternatives

      Servers of the Same Family

      INSTANCEvCPUsMEMORYAccelerators
      ecs.r6a.large 216 GiB0
      ecs.r6a.xlarge 432 GiB0
      ecs.r6a.4xlarge 16128 GiB0
      ecs.r6a.8xlarge 32256 GiB0
      ecs.r6a.16xlarge 64512 GiB0

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      ecs.r6a.2xlarge FAQs