ecs.c6.6xlarge by Alibaba Cloud

ecs.c6.6xlarge is a ecs.c6 family (24 vCPUs, 48 GiB RAM, 0 GB storage) server offered by Alibaba Cloud with 24 vCPUs, 48 GiB of memory and 0 GB of storage. The pricing starts at 1.2528 USD per hour.
24 vCPU
48 GiB Memory
Spare SCore
21,007
(All-cores)
1,313
(Single-core)

Specifications

Server Metadata

Vendor ID
alicloud
Name
ecs.c6.6xlarge
Description
ecs.c6 family (24 vCPUs, 48 GiB RAM, 0 GB storage)
Family
ecs.c6
Hw Virt
Average Time To Start
16
Status
active
Observed At
2026-10-24T00:57:06.617675

Availability

REGION / IDSPOTONDEMAND
Riyadh (SA) / me-central-1
- 1.2528 USD/h

Processor

vCPUs
24
Hypervisor
KVM
CPU Allocation
Dedicated
CPU Cores
12
CPU Speed
2.5 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
8269CY
CPU L1D Cache
32 KiB
CPU L1D Cache Total
384 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
384 KiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
12 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
16
Scalability
66.67

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
      7.5 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      A high-density x86 compute instance with 24 dedicated vCPUs, 48 GB RAM, and vector processing capabilities for compute-bound parallel workloads.

      Compute OptimizedGeneral Purpose

      Alibaba Cloud ecs.c6.6xlarge is a compute-optimized instance powered by an Intel Xeon 8269CY processor operating at 2.5 GHz. Built on x86_64 architecture under KVM virtualization, it provides 24 dedicated vCPUs across 12 physical cores, 48 GB of system memory, and an 8 Gbps baseline network bandwidth. The instance includes hardware vector accelerations such as AVX-512 VNNI alongside AES cryptography instructions. It contains no dedicated GPU hardware or local NVMe storage, requiring network-attached storage for persistent data. Benchmark evaluations demonstrate average multi-core CPU and memory throughput, such as a PassMark CPU score of 21643.62 and Redis SET throughput exceeding 20 million operations per second, contrasted with weaker single-core processing metrics. The 1:2 vCPU-to-memory allocation offers efficient compute density for parallelized tasks, making this server well suited for multi-threaded batch jobs, software compilation with Clang, ETL workloads, and high-throughput static web serving.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1Score
      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) 2,113,710 ops/sec 1,919,289 ops/sec 1.1 50.00% 50.00% +4.90%
      Redis RPS (pipeline=16, SET) 12,169,105 ops/sec 11,728,058 ops/sec 1 20.00% 20.00% 0.00%
      PassMark Memory Mark (composite) 2,512 2,416 1 10.00% 10.00% 0.00%
      Memory bandwidth (read, 16 MB ~ L3) 115,312 MB/sec 108,466 MB/sec 1.1 10.00% 10.00% +0.96%
      PassMark single-thread CPU 1,974 Mops/s 2,365 Mops/s 0.83 10.00% 10.00% -1.80%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,165

      Geekbench Multi-Core

      Score: 8,967

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 21,644
      Compression
      		 324,198
      Encryption
      		 9,713
      Extended Instructions
      		 19,500
      Floating Point Maths
      		 37,674
      Integer Maths
      		 70,217
      Physics
      		 2,068
      Prime Numbers
      		 115
      Single Threaded
      		 1,974
      String Sorting
      		 42,619

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,512
      Database Operations
      		 8,238
      Memory Latency
      		 53
      Memory Read Cached
      		 22,701
      Memory Read Uncached
      		 9,979
      Memory Write
      		 9,796

      Stress-ng Stressors

      CPU integerSingleMultiScaling
      atomic
      		 216.72 198.78 0.92×
      bitops
      		 114,887 1,535,219 13.36×
      branch
      		 144,787 2,639,580 18.23×
      funccall
      		 532.75 6,715 12.60×
      funcret
      		 10,802 188,122 17.41×
      hash
      		 122,795 2,179,749 17.75×
      intmath
      		 20,999 385,216 18.34×
      nop
      		 179,655 1,867,080 10.39×
      prime
      		 305,467 4,082,411 13.36×
      rotate
      		 90,830 1,385,171 15.25×
      str
      		 760,299 11,611,860 15.27×
      wcs
      		 499,957 6,573,952 13.15×
      CryptographySingleMultiScaling
      crypt
      		 2,291 26,853 11.72×
      CompressionSingleMultiScaling
      jpeg
      		 581.9 8,481 14.58×
      zlib
      		 35.94 922.15 25.66×
      HypervisorSingleMultiScaling
      clock
      		 15,494 219,026 14.14×
      clone
      		 434.04 4,814 11.09×
      context
      		 1,780 28,623 16.08×
      cpu-sched
      		 63.87 1,522 23.83×
      eventfd
      		 79,992 732,377 9.16×
      fault
      		 12,278 169,224 13.78×
      fork
      		 3,876 53,026 13.68×
      getrandom
      		 42,411 630,240 14.86×
      hrtimers
      		 466,567 1,978,856 4.24×
      mprotect
      		 1,037,798 3,358,069 3.24×
      mtx
      		 12,881,202 660,063,986 51.24×
      munmap
      		 2,786 39,015 14.00×
      null
      		 195,140 2,847,669 14.59×
      pipe
      		 877,548 6,603,605 7.53×
      priv-instr
      		 404,131 6,219,859 15.39×
      resched
      		 4,152,358 2,208,374 0.53×
      switch
      		 149,795 2,814,647 18.79×
      timermix
      		 326,209 5,509,801 16.89×
      tlb-shootdown
      		 10,617 48,384 4.56×
      tsc
      		 934,968 15,610,625 16.70×
      usersyscall
      		 282,238 4,339,783 15.38×
      vdso
      		 74,462,010 1,338,904,517 17.98×
      vfork
      		 28,809 172,071 5.97×
      x86syscall
      		 2,149,188 31,992,822 14.89×
      yield
      		 11,474,871 12,166,737 1.06×
      zero
      		 1,455,948 20,753,197 14.25×
      CPU float/SIMDSingleMultiScaling
      eigen
      		 15,049 223,370 14.84×
      expmath
      		 2,531 46,478 18.36×
      fma
      		 548,041 10,777,423 19.67×
      fp
      		 117.11 2,088 17.83×
      fractal
      		 4.6 81.81 17.78×
      hyperbolic
      		 2,615 49,584 18.96×
      logmath
      		 4,289 77,934 18.17×
      matrix
      		 2,843 55,038 19.36×
      matrix-3d
      		 648.26 3,409 5.26×
      monte-carlo
      		 106.2 1,543 14.53×
      mpfr
      		 1,149 14,926 12.99×
      powmath
      		 1,487 27,389 18.42×
      trig
      		 1,612 26,251 16.29×
      veccmp
      		 14,642 181,191 12.37×
      vecfp
      		 1,250 18,756 15.01×
      vecmath
      		 2,053 39,007 19.00×
      vecshuf
      		 529.99 6,845 12.91×
      vecwide
      		 22,672 308,417 13.60×
      AlgorithmsSingleMultiScaling
      bitonicsort
      		 6.8 94.8 13.94×
      bsearch
      		 234.88 3,216 13.69×
      bubblesort
      		 0.6 9.6 16.00×
      fibsearch
      		 264.11 4,048 15.33×
      heapsort
      		 8 117.8 14.72×
      hsearch
      		 4,819 71,303 14.80×
      insertionsort
      		 7.6 91.2 12.00×
      malloc
      		 2,154,067 26,996,980 12.53×
      mcontend
      		 116.14 6,167 53.10×
      mergesort
      		 25 388.99 15.56×
      qsort
      		 17.8 262.99 14.77×
      skiplist
      		 4,896 83,629 17.08×
      tree
      		 1.4 14.39 10.28×
      MemorySingleMultiScaling
      cache
      		 373,872 587,758 1.57×
      cachehammer
      		 375,667 7,514,522 20.00×
      cacheline
      		 33.93 838.7 24.72×
      l1cache
      		 212.9 2,768 13.00×
      memcpy
      		 358.88 4,352 12.13×
      memrate
      		 1.17 9.05 7.74×
      memthrash
      		 176.68 726.91 4.11×
      ptr-chase
      		 32,465,333 234,208,264 7.21×
      spinmem
      		 372.39 1,799 4.83×
      stream
      		 32.37 6,703 207.07×
      vm
      		 54,343 295,361 5.44×

      Stress-ng Raw Scores

      Stress-ng Relative Multicore Performance

      Static Web Server

      Redis

      Alternatives

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      INSTANCEvCPUsMEMORYAccelerators
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      ecs.c6.4xlarge 1632 GiB0
      ecs.c6.8xlarge 3264 GiB0
      ecs.c6.13xlarge 5296 GiB0

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