ecs.r5.6xlarge by Alibaba Cloud

ecs.r5.6xlarge is a ecs.r5 family (24 vCPUs, 192 GiB RAM, 0 GB storage) server offered by Alibaba Cloud with 24 vCPUs, 192 GiB of memory and 0 GB of storage. The pricing starts at 1.752 USD per hour.
24 vCPU
192 GiB Memory
Spare SCore
17,654
(All-cores)
1,109
(Single-core)

Specifications

Server Metadata

Vendor ID
alicloud
Name
ecs.r5.6xlarge
Description
ecs.r5 family (24 vCPUs, 192 GiB RAM, 0 GB storage)
Family
ecs.r5
Hw Virt
Average Time To Start
13
Status
active
Observed At
2026-10-24T04:54:00.935343

Availability

REGION / IDSPOTONDEMAND
Jakarta (ID) / ap-southeast-5
- 1.752 USD/h
Shenzhen (CN) / cn-shenzhen
- 2.17 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
8163
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
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, pti, ibrs, ibpb, stibp, fsgsbase, tsc_adjust, bmi1, hle, avx2, smep, bmi2, erms, invpcid, rtm, mpx, avx512f, avx512dq, rdseed, adx, smap, avx512cd, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, arat
Ecpus
15.9
Scalability
66.25

System Resources and Accelerators

MEMORY
Memory Amount
192 GiB
Memory Amount Actual
192 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 memory-optimized virtual server featuring a high RAM-to-vCPU ratio for in-memory databases and caching workloads without local storage.

      Memory OptimizedGeneral Purpose

      Alibaba Cloud ecs.r5.6xlarge is a memory-optimized instance featuring 24 vCPUs and 192.0 GB of RAM, powered by an Intel Xeon 8163 processor running at 2.5 GHz. Built on the x86_64 architecture and managed via the KVM hypervisor, it provides a high memory-to-vCPU ratio of 8.0 GB per core. The instance does not include local storage or GPU accelerators, relying instead on network-attached storage and offering an 8 Gbps baseline network bandwidth. Performance benchmarks show average multi-core capabilities, Redis operations, and memory bandwidth, contrasted by weaker single-threaded execution. This profile makes the ecs.r5.6xlarge qualitatively cost-effective for memory-intensive workloads that do not demand extreme single-core speeds. It is highly suited for in-memory databases, caching layers, and enterprise applications.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.77Score
      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) 1,397,729 ops/sec 1,919,289 ops/sec 0.74 50.00% 50.00% -14.00%
      Redis RPS (pipeline=16, SET) 10,143,434 ops/sec 11,728,058 ops/sec 0.83 20.00% 20.00% -3.70%
      PassMark Memory Mark (composite) 1,813 2,416 0.75 10.00% 10.00% -2.80%
      Memory bandwidth (read, 16 MB ~ L3) 104,719 MB/sec 108,466 MB/sec 0.91 10.00% 10.00% -0.94%
      PassMark single-thread CPU 1,693 Mops/s 2,365 Mops/s 0.71 10.00% 10.00% -3.40%

      Memory Bandwidth

      Compression

      OpenSSL

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 18,320
      Compression
      		 272,653
      Encryption
      		 8,161
      Extended Instructions
      		 17,919
      Floating Point Maths
      		 31,679
      Integer Maths
      		 59,045
      Physics
      		 1,741
      Prime Numbers
      		 89
      Single Threaded
      		 1,693
      String Sorting
      		 35,522

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 1,813
      Database Operations
      		 6,462
      Memory Latency
      		 78
      Memory Read Cached
      		 19,511
      Memory Read Uncached
      		 6,309
      Memory Write
      		 6,948

      Stress-ng Stressors

      CPU integerSingleMultiScaling
      atomic
      		 176.58 154.26 0.87×
      bitops
      		 100,353 1,322,190 13.18×
      branch
      		 122,319 2,218,842 18.14×
      funccall
      		 450.45 5,723 12.70×
      funcret
      		 9,104 159,193 17.49×
      hash
      		 103,919 1,831,895 17.63×
      intmath
      		 17,986 324,423 18.04×
      nop
      		 151,140 1,569,266 10.38×
      prime
      		 264,302 3,562,199 13.48×
      rotate
      		 76,686 1,161,352 15.14×
      str
      		 655,800 9,692,510 14.78×
      wcs
      		 426,850 5,536,785 12.97×
      CryptographySingleMultiScaling
      crypt
      		 1,939 22,683 11.70×
      CompressionSingleMultiScaling
      jpeg
      		 476.07 7,057 14.82×
      zlib
      		 40.88 800.15 19.57×
      HypervisorSingleMultiScaling
      clock
      		 8,596 138,505 16.11×
      clone
      		 370.06 3,929 10.62×
      context
      		 560.59 9,822 17.52×
      cpu-sched
      		 74.02 1,468 19.84×
      eventfd
      		 26,330 688,595 26.15×
      fault
      		 8,351 127,433 15.26×
      fork
      		 2,473 36,766 14.87×
      getrandom
      		 32,337 494,208 15.28×
      hrtimers
      		 167,265 2,099,563 12.55×
      mprotect
      		 643,041 1,530,313 2.38×
      mtx
      		 12,986,483 456,493,516 35.15×
      munmap
      		 1,796 27,996 15.59×
      null
      		 53,118 919,286 17.31×
      pipe
      		 419,114 3,499,290 8.35×
      priv-instr
      		 156,243 2,664,000 17.05×
      resched
      		 2,111,070 1,224,908 0.58×
      switch
      		 96,110 1,810,756 18.84×
      timermix
      		 113,192 1,955,473 17.28×
      tlb-shootdown
      		 11,372 37,651 3.31×
      tsc
      		 788,337 13,109,279 16.63×
      usersyscall
      		 100,762 1,726,898 17.14×
      vdso
      		 62,820,739 1,113,078,167 17.72×
      vfork
      		 17,875 187,228 10.47×
      x86syscall
      		 580,502 9,992,010 17.21×
      yield
      		 5,330,922 5,636,988 1.06×
      zero
      		 506,523 8,836,978 17.45×
      CPU float/SIMDSingleMultiScaling
      eigen
      		 12,987 200,405 15.43×
      expmath
      		 2,127 39,278 18.46×
      fma
      		 479,280 9,928,574 20.72×
      fp
      		 132 2,354 17.83×
      fractal
      		 4.2 73.22 17.43×
      hyperbolic
      		 2,222 41,678 18.76×
      logmath
      		 3,590 65,327 18.20×
      matrix
      		 2,474 46,281 18.71×
      matrix-3d
      		 532.6 3,790 7.12×
      monte-carlo
      		 32.01 709.95 22.18×
      mpfr
      		 982.57 12,883 13.11×
      powmath
      		 1,263 23,186 18.36×
      trig
      		 1,364 22,412 16.43×
      veccmp
      		 12,329 144,874 11.75×
      vecfp
      		 1,761 26,095 14.82×
      vecmath
      		 1,678 31,732 18.91×
      vecshuf
      		 744.39 9,615 12.92×
      vecwide
      		 44,880 633,983 14.13×
      AlgorithmsSingleMultiScaling
      bitonicsort
      		 5.8 79.6 13.72×
      bsearch
      		 197.58 2,714 13.74×
      bubblesort
      		 0.6 4.8 8.00×
      fibsearch
      		 222.39 3,382 15.21×
      heapsort
      		 6.8 97 14.26×
      hsearch
      		 4,033 59,646 14.79×
      insertionsort
      		 6.4 76.8 12.00×
      malloc
      		 1,624,780 23,962,977 14.75×
      mcontend
      		 98.88 3,960 40.05×
      mergesort
      		 21.2 326.19 15.39×
      qsort
      		 15 219.99 14.67×
      skiplist
      		 4,151 70,612 17.01×
      tree
      		 1.2 9.59 7.99×
      MemorySingleMultiScaling
      cache
      		 261,651 436,056 1.67×
      cachehammer
      		 360,630 7,145,139 19.81×
      cacheline
      		 30.37 757.46 24.94×
      l1cache
      		 180.07 2,315 12.86×
      memcpy
      		 303.06 3,660 12.08×
      memrate
      		 0.94 8.69 9.24×
      memthrash
      		 164.9 656.92 3.98×
      ptr-chase
      		 29,820,514 179,172,392 6.01×
      spinmem
      		 188.79 878.69 4.65×
      stream
      		 34.73 7,842 225.80×
      vm
      		 16,962 293,547 17.31×

      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.r5.large 216 GiB0
      ecs.r5.xlarge 432 GiB0
      ecs.r5.2xlarge 864 GiB0
      ecs.r5.3xlarge 1296 GiB0
      ecs.r5.4xlarge 16128 GiB0
      ecs.r5.8xlarge 32256 GiB0
      ecs.r5.16xlarge 64512 GiB0

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      ecs.r5.6xlarge FAQs