ecs.u1-c1m4.3xlarge by Alibaba Cloud

ecs.u1-c1m4.3xlarge is a ecs.u1 family (12 vCPUs, 48 GiB RAM, 0 GB storage) server offered by Alibaba Cloud with 12 vCPUs, 48 GiB of memory and 0 GB of storage. The pricing starts at 0.0418 USD per hour.
12 vCPU
48 GiB Memory
Spare SCore
11,572
(All-cores)
1,852
(Single-core)

Specifications

Server Metadata

Vendor ID
alicloud
Name
ecs.u1-c1m4.3xlarge
Description
ecs.u1 family (12 vCPUs, 48 GiB RAM, 0 GB storage)
Family
ecs.u1
Hw Virt
Status
active
Observed At
2026-11-03T12:38:40.276764

Availability

REGION / IDSPOTONDEMAND
Heyuan (CN) / cn-heyuan
- 0.2926 USD/h
Ulanqab (CN) / cn-wulanchabu
- 0.2926 USD/h
Guangzhou (CN) / cn-guangzhou
0.0418 USD/h 0.418 USD/h
Hangzhou (CN) / cn-hangzhou
0.0418 USD/h 0.418 USD/h
Qingdao (CN) / cn-qingdao
0.05225 USD/h 0.418 USD/h
Chengdu (CN) / cn-chengdu
0.0627 USD/h 0.418 USD/h
Beijing (CN) / cn-beijing
- 0.418 USD/h
Shanghai (CN) / cn-shanghai
- 0.418 USD/h
Shenzhen (CN) / cn-shenzhen
- 0.418 USD/h
Silicon Valley (US) / us-west-1
0.11025 USD/h 0.5128 USD/h
London (GB) / eu-west-1
0.0829 USD/h 0.5922 USD/h
Frankfurt (DE) / eu-central-1
0.0862 USD/h 0.6158 USD/h
Singapore (SG) / ap-southeast-1
0.1215 USD/h 0.6394 USD/h
Hong Kong (HK) / cn-hongkong
0.067933 USD/h 0.7027 USD/h

Processor

vCPUs
12
Hypervisor
KVM
CPU Allocation
Dedicated
CPU Cores
6
CPU Speed
2.5 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU L1D Cache
32 KiB
CPU L1D Cache Total
192 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
192 KiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
6 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
6.2
Scalability
51.67

System Resources and Accelerators

MEMORY
Memory Amount
48 GiB
Memory Amount Actual
48 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
      4 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      A balanced general-purpose virtual machine offering dedicated Intel Xeon processing and stable memory performance for standard enterprise workloads.

      General Purpose

      Alibaba Cloud ecs.u1-c1m4.3xlarge is a general-purpose instance built on the KVM hypervisor and powered by an Intel Xeon x86_64 processor. It features 12 dedicated vCPUs across 6 physical cores, 48.0 GB of RAM, and a 4 Gbps baseline network bandwidth, with no local storage or GPU. Performance benchmarks place this instance in the average tier, highlighted by a Passmark CPU score of 14790.0 and a Redis throughput of 11.32 million SET operations per second. While it handles small-scale language models and standard web serving efficiently, performance drops significantly on larger workloads like 7B parameter LLM inference. This instance provides a balanced, cost-efficient profile for general-purpose applications, including software compilation, web serving, and database operations, where dedicated CPU resources are required without the need for high-speed local storage.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.7Score
      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) 1,260,162 ops/sec 1,922,940 ops/sec 0.68 50.00% 50.00% -18.00%
      Redis RPS (pipeline=16, SET) 7,159,782 ops/sec 11,785,922 ops/sec 0.6 20.00% 20.00% -9.70%
      PassMark Memory Mark (composite) 2,112 2,415 0.88 10.00% 10.00% -1.30%
      Memory bandwidth (read, 16 MB ~ L3) 69,077 MB/sec 108,490 MB/sec 0.63 10.00% 10.00% -4.50%
      PassMark single-thread CPU 2,336 Mops/s 2,365 Mops/s 0.96 10.00% 10.00% -0.41%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,368

      Geekbench Multi-Core

      Score: 7,008

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 14,790
      Compression
      		 184,186
      Encryption
      		 6,349
      Extended Instructions
      		 10,436
      Floating Point Maths
      		 25,680
      Integer Maths
      		 50,159
      Physics
      		 1,435
      Prime Numbers
      		 87
      Single Threaded
      		 2,336
      String Sorting
      		 25,354

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,112
      Database Operations
      		 5,645
      Memory Latency
      		 55
      Memory Read Cached
      		 24,047
      Memory Read Uncached
      		 7,300
      Memory Write
      		 7,478

      Stress-ng Stressors

      CPU integerSingleMultiScaling
      atomic
      		 279.33 321.94 1.15×
      bitops
      		 129,204 794,095 6.15×
      branch
      		 136,630 1,296,660 9.49×
      funccall
      		 631.46 3,890 6.16×
      funcret
      		 11,616 102,866 8.86×
      hash
      		 151,025 1,307,824 8.66×
      intmath
      		 61,015 450,093 7.38×
      nop
      		 189,414 993,464 5.24×
      prime
      		 391,843 2,553,427 6.52×
      rotate
      		 97,442 628,460 6.45×
      str
      		 896,092 5,500,085 6.14×
      wcs
      		 618,180 3,237,444 5.24×
      CryptographySingleMultiScaling
      crypt
      		 2,822 15,747 5.58×
      CompressionSingleMultiScaling
      jpeg
      		 704.83 5,510 7.82×
      zlib
      		 56.85 509.75 8.97×
      HypervisorSingleMultiScaling
      clock
      		 16,132 130,148 8.07×
      clone
      		 581.03 2,671 4.60×
      context
      		 2,029 15,959 7.87×
      cpu-sched
      		 66.8 723.85 10.84×
      eventfd
      		 47,503 774,237 16.30×
      fault
      		 15,178 115,179 7.59×
      fork
      		 4,809 34,289 7.13×
      getrandom
      		 48,702 341,555 7.01×
      hrtimers
      		 369,840 1,213,484 3.28×
      mprotect
      		 1,039,426 1,944,450 1.87×
      mtx
      		 17,920,145 414,045,413 23.11×
      munmap
      		 3,519 27,588 7.84×
      null
      		 221,873 1,644,908 7.41×
      pipe
      		 1,041,111 4,205,391 4.04×
      priv-instr
      		 464,867 3,538,069 7.61×
      resched
      		 3,282,259 1,121,920 0.34×
      switch
      		 71,982 1,718,347 23.87×
      timermix
      		 298,301 3,012,063 10.10×
      tlb-shootdown
      		 11,236 29,440 2.62×
      tsc
      		 765,315 6,787,431 8.87×
      usersyscall
      		 329,571 2,499,662 7.58×
      vdso
      		 85,674,049 699,749,787 8.17×
      vfork
      		 31,697 176,943 5.58×
      x86syscall
      		 2,519,936 18,544,327 7.36×
      yield
      		 6,936,657 7,086,780 1.02×
      zero
      		 1,911,487 12,992,282 6.80×
      CPU float/SIMDSingleMultiScaling
      eigen
      		 14,734 113,495 7.70×
      expmath
      		 2,866 25,259 8.81×
      fma
      		 549,315 6,812,951 12.40×
      fp
      		 277.87 1,906 6.86×
      fractal
      		 5.2 46.4 8.92×
      hyperbolic
      		 3,057 27,185 8.89×
      logmath
      		 4,835 41,934 8.67×
      matrix
      		 3,431 31,463 9.17×
      matrix-3d
      		 751 2,961 3.94×
      monte-carlo
      		 117.17 897.82 7.66×
      mpfr
      		 1,400 9,036 6.45×
      powmath
      		 1,680 14,997 8.93×
      trig
      		 1,954 14,940 7.65×
      veccmp
      		 20,398 116,590 5.72×
      vecfp
      		 2,033 13,828 6.80×
      vecmath
      		 3,172 28,686 9.04×
      vecshuf
      		 878.27 7,061 8.04×
      vecwide
      		 56,991 404,472 7.10×
      AlgorithmsSingleMultiScaling
      bitonicsort
      		 8 48 6.00×
      bsearch
      		 249.48 1,988 7.97×
      bubblesort
      		 1 4.8 4.80×
      fibsearch
      		 287.81 2,122 7.37×
      heapsort
      		 9.4 65.2 6.94×
      hsearch
      		 7,307 49,615 6.79×
      insertionsort
      		 10.4 37.8 3.63×
      malloc
      		 2,494,014 21,448,991 8.60×
      mcontend
      		 139.32 2,510 18.01×
      mergesort
      		 26.8 225.19 8.40×
      qsort
      		 20.4 129.4 6.34×
      skiplist
      		 5,424 48,291 8.90×
      tree
      		 1.4 9.6 6.86×
      MemorySingleMultiScaling
      cache
      		 325,910 607,570 1.86×
      cachehammer
      		 374,159 3,943,850 10.54×
      cacheline
      		 62.51 659.79 10.55×
      l1cache
      		 277.9 1,524 5.48×
      memcpy
      		 403.98 2,394 5.93×
      memrate
      		 1.76 9.21 5.23×
      memthrash
      		 204.51 483.27 2.36×
      ptr-chase
      		 12,651,225 123,800,747 9.79×
      spinmem
      		 331.59 803.3 2.42×
      stream
      		 16.43 1,128 68.63×
      vm
      		 58,473 292,469 5.00×

      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

      INSTANCEvCPUsMEMORYAccelerators
      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-c1m4.3xlarge FAQs