logo

ecs.u1-c1m1.8xlarge by Alibaba Cloud

ecs.u1-c1m1.8xlarge is a ecs.u1 family (32 vCPUs, 32 GiB RAM, 0 GB storage) server offered by Alibaba Cloud with 32 vCPUs, 32 GiB of memory and 0 GB of storage. The pricing starts at 0.067 USD per hour.
32 vCPU
32 GiB Memory
Spare SCore
30912
(All-cores)
1820
(Single-core)

Specifications

Server Metadata

Vendor ID
alicloud
Name
ecs.u1-c1m1.8xlarge
Description
ecs.u1 family (32 vCPUs, 32 GiB RAM, 0 GB storage)
Family
ecs.u1
Hw Virt
Status
active
Observed At
2026-07-25T09:27:31.397662

Availability

REGION / IDSPOTONDEMAND
Heyuan (CN) / cn-heyuan
0.067 USD/h 0.744 USD/h
Ulanqab (CN) / cn-wulanchabu
- 0.744 USD/h
Beijing (CN) / cn-beijing
0.124 USD/h 0.8266 USD/h
Qingdao (CN) / cn-qingdao
0.1199 USD/h 0.8266 USD/h
Chengdu (CN) / cn-chengdu
- 0.8266 USD/h
Guangzhou (CN) / cn-guangzhou
- 0.8266 USD/h
Hangzhou (CN) / cn-hangzhou
- 0.8266 USD/h
Shanghai (CN) / cn-shanghai
- 0.8266 USD/h
Shenzhen (CN) / cn-shenzhen
- 0.8266 USD/h
Silicon Valley (US) / us-west-1
0.2543 USD/h 1.0597 USD/h
Frankfurt (DE) / eu-central-1
0.1499 USD/h 1.1994 USD/h
London (GB) / eu-west-1
0.2394 USD/h 1.2599 USD/h

Processor

vCPUs
32
Hypervisor
KVM
CPU Allocation
Dedicated
CPU Cores
32
CPU Speed
2.5 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU L1D Cache
32 KiB
CPU L1D Cache Total
512 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
512 KiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
16 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
17
Scalability
53.12

System Resources and Accelerators

MEMORY
Memory Amount
32 GiB
Memory Amount Actual
32 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
      10 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      A compute-dense, dedicated 32-core Intel Xeon server with a 1:1 CPU-to-RAM ratio, optimized for parallel processing and software compilation.

      Compute OptimizedGeneral Purpose

      Alibaba Cloud ecs.u1-c1m1.8xlarge is an x86_64 compute-focused instance featuring 32 dedicated Intel Xeon physical cores running at 2.5 GHz and 32 GB of RAM. Operating on the KVM hypervisor, this server provides a 1:1 vCPU-to-RAM ratio, making it highly compute-dense. It includes a 10 Gbps baseline network bandwidth but lacks local storage and GPU accelerators. Performance benchmarks place the instance in the average tier for most tasks, with a PassMark CPU score of 34140.29 and a Geekbench multi-core score of 12692.0. It shows strong performance in text generation for small language models, achieving 304.01 tokens/sec. The low memory-to-core ratio represents a tradeoff for memory-intensive applications, making this server best suited for CPU-bound workloads like software compilation, ray tracing, and lightweight inference.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.54Score
      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) 3,288,091 ops/sec 1,896,415 ops/sec 1.73 50.00% 50.00% +31.50%
      Redis RPS (pipeline=16, SET) 19,348,687 ops/sec 11,539,523 ops/sec 1.68 20.00% 20.00% +10.90%
      PassMark Memory Mark (composite) 2,691 2,411 1.12 10.00% 10.00% +1.14%
      Memory bandwidth (read, 16 MB ~ L3) 161,077 MB/sec 107,368 MB/sec 1.5 10.00% 10.00% +4.14%
      PassMark single-thread CPU 2,356 Mops/s 2,363 Mops/s 0.997 10.00% 10.00% -0.03%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,439

      Geekbench Multi-Core

      Score: 12,692

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 34140
      Compression
      		 487332
      Encryption
      		 16918
      Extended Instructions
      		 28194
      Floating Point Maths
      		 68586
      Integer Maths
      		 133908
      Physics
      		 3358
      Prime Numbers
      		 188
      Single Threaded
      		 2356
      String Sorting
      		 68632

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2691
      Database Operations
      		 14956
      Memory Latency
      		 52
      Memory Read Cached
      		 24019
      Memory Read Uncached
      		 12321
      Memory Write
      		 11415

      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

      Similar Servers

      INSTANCEVENDORvCPUsMEMORYGPUs

      ecs.u1-c1m1.8xlarge FAQs