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ecs.r8a.2xlarge by Alibaba Cloud

ecs.r8a.2xlarge is a ecs.r8a 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 0.08 USD per hour.
8 vCPU
64 GiB Memory
Spare SCore
12304
(All-cores)
3075
(Single-core)

Specifications

Server Metadata

Vendor ID
alicloud
Name
ecs.r8a.2xlarge
Description
ecs.r8a family (8 vCPUs, 64 GiB RAM, 0 GB storage)
Family
ecs.r8a
Hw Virt
Average Time To Start
11
Status
active
Observed At
2026-07-21T22:06:55.431878

Availability

REGION / IDSPOTONDEMAND
Shenzhen (CN) / cn-shenzhen
0.08 USD/h 0.4209 USD/h

Processor

vCPUs
8
Hypervisor
KVM
CPU Allocation
Dedicated
CPU Cores
8
CPU Speed
2.7 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU Model
9T24
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
1 MiB
CPU L2 Cache Total
4 MiB
CPU L3 Cache
32 MiB
CPU L3 Cache Total
32 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, amd_lbr_v2, nopl, nonstop_tsc, cpuid, extd_apicid, aperfmperf, tsc_known_freq, pni, pclmulqdq, monitor, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, cmp_legacy, extapic, cr8_legacy, abm, sse4a, misalignsse, 3dnowprefetch, osvw, ibs, topoext, perfctr_core, mwaitx, ssbd, perfmon_v2, ibrs, ibpb, stibp, ibrs_enhanced, vmmcall, fsgsbase, tsc_adjust, bmi1, avx2, smep, bmi2, erms, invpcid, avx512f, avx512dq, rdseed, adx, smap, avx512ifma, clflushopt, clwb, avx512cd, sha_ni, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, avx512_bf16, clzero, irperf, xsaveerptr, rdpru, wbnoinvd, arat, avx512vbmi, umip, pku, ospke, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, avx512_vpopcntdq, rdpid, fsrm
Ecpus
4
Scalability
50

System Resources and Accelerators

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

      CPU and System Topology

      Server Description

      An x86_64 memory-optimized instance featuring dedicated AMD EPYC processors and a high memory-to-vCPU ratio for memory-intensive workloads.

      Memory OptimizedGeneral Purpose

      Alibaba Cloud ecs.r8a.2xlarge is an x86_64 memory-optimized instance featuring 8 dedicated vCPUs powered by an AMD EPYC 9T24 processor running at 2.7 GHz. Operating on the KVM hypervisor, it is equipped with 64.0 GB of RAM, yielding a high resource density of 8.0 GB of memory per core. The instance does not include local storage or GPU accelerators, relying on network-attached storage and providing a baseline network bandwidth of 4 Gbps. Benchmark data reveals strong single-core CPU performance, alongside average multi-core and cryptographic capabilities. However, a key tradeoff is its uncached large-block memory read bandwidth, which performs in the bottom 25%. This server is designed for memory-intensive workloads such as in-memory databases, Redis caching layers, and structured database operations.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.508Score
      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) 726,203 ops/sec 1,896,415 ops/sec 0.383 50.00% 50.00% -38.10%
      Redis RPS (pipeline=16, SET) 5,817,262 ops/sec 11,539,523 ops/sec 0.504 20.00% 20.00% -12.80%
      PassMark Memory Mark (composite) 2,516 2,411 1.04 10.00% 10.00% +0.39%
      Memory bandwidth (read, 16 MB ~ L3) 46,529 MB/sec 107,368 MB/sec 0.433 10.00% 10.00% -8.03%
      PassMark single-thread CPU 2,886 Mops/s 2,363 Mops/s 1.22 10.00% 10.00% +2.01%

      Memory Bandwidth

      Compression

      OpenSSL

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		14423
      Compression
      		157965
      Encryption
      		9623
      Extended Instructions
      		10856
      Floating Point Maths
      		21243
      Integer Maths
      		37969
      Physics
      		1490
      Prime Numbers
      		88
      Single Threaded
      		2886
      String Sorting
      		22861

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		2516
      Database Operations
      		3899
      Memory Latency
      		77
      Memory Read Cached
      		27362
      Memory Read Uncached
      		25149
      Memory Write
      		24921

      Stress-ng Raw Scores

      Stress-ng Relative Multicore Performance

      Static Web Server

      Redis

      Alternatives

      Servers of the Same Family

      INSTANCEvCPUsMEMORYGPUs
      ecs.r8a.large 216 GiB0
      ecs.r8a.xlarge 432 GiB0
      ecs.r8a.4xlarge 16128 GiB0
      ecs.r8a.8xlarge 32256 GiB0
      ecs.r8a.12xlarge 48384 GiB0
      ecs.r8a.16xlarge 64512 GiB0
      ecs.r8a.24xlarge 96768 GiB0

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      ecs.r8a.2xlarge FAQs