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ecs.u1-c1m1.4xlarge by Alibaba Cloud

ecs.u1-c1m1.4xlarge is a ecs.u1 family (16 vCPUs, 16 GiB RAM, 0 GB storage) server offered by Alibaba Cloud with 16 vCPUs, 16 GiB of memory and 0 GB of storage. The pricing starts at 0.0283 USD per hour.
16 vCPU
16 GiB Memory
Spare SCore
15449
(All-cores)
1852
(Single-core)

Specifications

Server Metadata

Vendor ID
alicloud
Name
ecs.u1-c1m1.4xlarge
Description
ecs.u1 family (16 vCPUs, 16 GiB RAM, 0 GB storage)
Family
ecs.u1
Hw Virt
Status
active
Observed At
2026-07-21T22:06:55.429878

Availability

REGION / IDSPOTONDEMAND
Heyuan (CN) / cn-heyuan
0.0283 USD/h 0.2833 USD/h
Ulanqab (CN) / cn-wulanchabu
- 0.2833 USD/h
Shanghai (CN) / cn-shanghai
0.0372 USD/h 0.4133 USD/h
Hangzhou (CN) / cn-hangzhou
0.0413 USD/h 0.4133 USD/h
Qingdao (CN) / cn-qingdao
0.05165 USD/h 0.4133 USD/h
Guangzhou (CN) / cn-guangzhou
0.062 USD/h 0.4133 USD/h
Beijing (CN) / cn-beijing
- 0.4133 USD/h
Chengdu (CN) / cn-chengdu
- 0.4133 USD/h
Shenzhen (CN) / cn-shenzhen
- 0.4133 USD/h
Silicon Valley (US) / us-west-1
0.10335 USD/h 0.5298 USD/h
Frankfurt (DE) / eu-central-1
- 0.5997 USD/h
Singapore (SG) / ap-southeast-1
0.0854 USD/h 0.6101 USD/h
London (GB) / eu-west-1
0.05985 USD/h 0.6299 USD/h
Hong Kong (HK) / cn-hongkong
- 0.6696 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 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
33 MiB
CPU L3 Cache Total
33 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, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, tsc_deadline_timer, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, abm, 3dnowprefetch, cpuid_fault, 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
Ecpus
8.3
Scalability
51.88

System Resources and Accelerators

MEMORY
Memory Amount
16 GiB
Memory Amount Actual
16 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 dedicated multi-core compute instance with a lean memory profile, optimized for CPU-bound tasks and static web serving.

      Compute OptimizedGeneral Purpose

      Alibaba Cloud ecs.u1-c1m1.4xlarge is an x86_64 compute-focused server instance featuring 16 dedicated Intel Xeon physical cores running at 2.5 GHz and 16.0 GB of RAM. Operating on a KVM hypervisor, this instance provides a 1:1 vCPU-to-RAM ratio, 5 Gbps baseline network bandwidth, and no local storage or GPU accelerators. Performance benchmarks place the instance in the middle 50% tier, with a Passmark CPU score of 19335.86 and a Redis SET throughput of 15.61 million operations per second. The low memory allocation per core represents a clear trade-off, making it less suitable for memory-heavy databases but highly cost-efficient for CPU-bound tasks. It is best suited for static web serving, software compilation, and lightweight text or image processing workloads.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.898Score
      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) 1,662,515 ops/sec 1,896,415 ops/sec 0.877 50.00% 50.00% -6.35%
      Redis RPS (pipeline=16, SET) 9,800,735 ops/sec 11,539,523 ops/sec 0.849 20.00% 20.00% -3.22%
      PassMark Memory Mark (composite) 2,277 2,411 0.944 10.00% 10.00% -0.57%
      Memory bandwidth (read, 16 MB ~ L3) 102,860 MB/sec 107,368 MB/sec 0.958 10.00% 10.00% -0.43%
      PassMark single-thread CPU 2,394 Mops/s 2,363 Mops/s 1.01 10.00% 10.00% +0.10%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,435

      Geekbench Multi-Core

      Score: 8,756

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		19336
      Compression
      		244847
      Encryption
      		8449
      Extended Instructions
      		13993
      Floating Point Maths
      		34230
      Integer Maths
      		66966
      Physics
      		1941
      Prime Numbers
      		128
      Single Threaded
      		2394
      String Sorting
      		34573

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		2277
      Database Operations
      		7966
      Memory Latency
      		54
      Memory Read Cached
      		24065
      Memory Read Uncached
      		9732
      Memory Write
      		10317

      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

      INSTANCEvCPUsMEMORYGPUs
      ecs.u1-c1m1.large 22 GiB0
      ecs.u1-c1m2.large 24 GiB0
      ecs.u1-c1m4.large 28 GiB0
      ecs.u1-c1m8.large 216 GiB0
      ecs.u1-c1m1.xlarge 44 GiB0
      ecs.u1-c1m2.xlarge 48 GiB0
      ecs.u1-c1m4.xlarge 416 GiB0

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      ecs.u1-c1m1.4xlarge FAQs