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ecs.re6.4xlarge by Alibaba Cloud

ecs.re6.4xlarge is a ecs.re6 family (16 vCPUs, 256 GiB RAM, 0 GB storage) server offered by Alibaba Cloud with 16 vCPUs, 256 GiB of memory and 0 GB of storage. The pricing starts at 1.2329 USD per hour.
16 vCPU
256 GiB Memory
Spare SCore
13935
(All-cores)
1313
(Single-core)

Specifications

Server Metadata

Vendor ID
alicloud
Name
ecs.re6.4xlarge
Description
ecs.re6 family (16 vCPUs, 256 GiB RAM, 0 GB storage)
Family
ecs.re6
Hw Virt
Average Time To Start
16
Status
active
Observed At
2026-07-25T19:47:22.751411

Availability

REGION / IDSPOTONDEMAND
Beijing (CN) / cn-beijing
- 1.2329 USD/h
Hangzhou (CN) / cn-hangzhou
- 1.2329 USD/h
Shanghai (CN) / cn-shanghai
- 1.2329 USD/h
Shenzhen (CN) / cn-shenzhen
- 1.2329 USD/h

Processor

vCPUs
16
Hypervisor
KVM
CPU Allocation
Dedicated
CPU Cores
16
CPU Speed
2.5 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
8269CL
CPU L1D Cache
32 KiB
CPU L1D Cache Total
256 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
256 KiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
8 MiB
CPU L3 Cache
36 MiB
CPU L3 Cache Total
36 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, ss, ht, syscall, nx, pdpe1gb, rdtscp, lm, constant_tsc, rep_good, nopl, xtopology, nonstop_tsc, cpuid, 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, abm, 3dnowprefetch, pti, fsgsbase, tsc_adjust, bmi1, avx2, smep, bmi2, erms, invpcid, avx512f, avx512dq, rdseed, adx, smap, clflushopt, clwb, avx512cd, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, arat, avx512_vnni
Ecpus
10.6
Scalability
66.25

System Resources and Accelerators

MEMORY
Memory Amount
256 GiB
Memory Amount Actual
256 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
      5 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      A memory-optimized server featuring 256 GB of RAM and 16 dedicated cores for memory-intensive database and caching workloads.

      Memory OptimizedGeneral Purpose

      Alibaba Cloud ecs.re6.4xlarge is a memory-optimized instance featuring 16 dedicated Intel Xeon 8269CL physical cores running at 2.5 GHz and 256.0 GB of RAM. Operating on a KVM hypervisor, this x86_64 server provides a high memory-to-vCPU ratio of 16 GB per core but lacks local storage and GPU accelerators. Baseline network bandwidth is rated at 5 Gbps. Benchmark results show weak single-core CPU performance, but multi-core operations and memory bandwidth fall into the average tier, with Redis SET operations reaching 12.92 million operations per second. This resource configuration is qualitatively cost-efficient for memory-heavy applications where massive RAM capacity is prioritized over raw single-threaded CPU speed. It is suited for in-memory databases, caching layers, and memory-intensive enterprise workloads.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.708Score
      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) 1,326,396 ops/sec 1,896,415 ops/sec 0.699 50.00% 50.00% -16.40%
      Redis RPS (pipeline=16, SET) 7,291,940 ops/sec 11,539,523 ops/sec 0.632 20.00% 20.00% -8.77%
      PassMark Memory Mark (composite) 2,012 2,411 0.835 10.00% 10.00% -1.79%
      Memory bandwidth (read, 16 MB ~ L3) 73,654 MB/sec 107,368 MB/sec 0.686 10.00% 10.00% -3.70%
      PassMark single-thread CPU 1,961 Mops/s 2,363 Mops/s 0.83 10.00% 10.00% -1.85%

      Memory Bandwidth

      Compression

      OpenSSL

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 14793
      Compression
      		 219659
      Encryption
      		 6468
      Extended Instructions
      		 12893
      Floating Point Maths
      		 25016
      Integer Maths
      		 46383
      Physics
      		 1235
      Prime Numbers
      		 53
      Single Threaded
      		 1961
      String Sorting
      		 28370

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2012
      Database Operations
      		 5078
      Memory Latency
      		 67
      Memory Read Cached
      		 22377
      Memory Read Uncached
      		 7128
      Memory Write
      		 7015

      Stress-ng Raw Scores

      Stress-ng Relative Multicore Performance

      Static Web Server

      Redis

      Alternatives

      Servers of the Same Family

      INSTANCEvCPUsMEMORYGPUs
      ecs.re6.8xlarge 32512 GiB0
      ecs.re6.13xlarge 52768 GiB0
      ecs.re6.16xlarge 641024 GiB0
      ecs.re6.26xlarge 1041536 GiB0
      ecs.re6.52xlarge 2083072 GiB0

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      ecs.re6.4xlarge FAQs