B4ls_v2 by Microsoft Azure

B4ls_v2 is a Bsv2 family [Low Memory] [Premium Storage capable] [Intel processor] 4 vCPUs server offered by Microsoft Azure with 4 vCPUs, 8 GiB of memory and 0 GB of storage. The pricing starts at 0.0802 USD per hour.
4 vCPU
8 GiB Memory
Spare SCore
3,873
(All-cores)
1,897
(Single-core)

Specifications

Server Metadata

Vendor ID
azure
Server ID
Standard_B4ls_v2
Name
B4ls_v2
API Reference
Standard_B4ls_v2
Description
Bsv2 family [Low Memory] [Premium Storage capable] [Intel processor] 4 vCPUs
Family
Bsv2
Hw Virt
Average Time To Start
18
Status
active
Observed At
2026-10-28T07:57:06.885848

Availability

REGION / IDSPOTONDEMAND
East US (US) / eastus
0.1323 USD/h 0.147 USD/h
East US 2 (US) / eastus2
0.1323 USD/h 0.147 USD/h
North Central US (US) / northcentralus
0.1323 USD/h 0.147 USD/h
West US 2 (US) / westus2
0.1323 USD/h 0.147 USD/h
West US 3 (US) / westus3
0.1323 USD/h 0.147 USD/h
Sweden Central (SE) / swedencentral
0.1377 USD/h 0.153 USD/h
Central India (IN) / centralindia
0.1431 USD/h 0.159 USD/h
Jio India Central (IN) / jioindiacentral
- 0.159 USD/h
Jio India West (IN) / jioindiawest
- 0.159 USD/h
North Europe (IE) / northeurope
0.1458 USD/h 0.162 USD/h
Spain Central (ES) / spaincentral
0.1458 USD/h 0.162 USD/h
Canada Central (CA) / canadacentral
0.1476 USD/h 0.164 USD/h
Canada East (CA) / canadaeast
0.1476 USD/h 0.164 USD/h
Central US (US) / centralus
0.1323 USD/h 0.167 USD/h
France Central (FR) / francecentral
0.1503 USD/h 0.167 USD/h
UK South (GB) / uksouth
0.1503 USD/h 0.167 USD/h
Indonesia Central (ID) / indonesiacentral
0.1512 USD/h 0.168 USD/h
Austria East (AT) / austriaeast
0.0802 USD/h 0.17 USD/h
Belgium Central (BE) / belgiumcentral
0.0802 USD/h 0.17 USD/h
Germany West Central (DE) / germanywestcentral
0.153 USD/h 0.17 USD/h
Israel Central (IL) / israelcentral
0.153 USD/h 0.17 USD/h
Italy North (IT) / italynorth
0.153 USD/h 0.17 USD/h
Korea South (KR) / koreasouth
0.153 USD/h 0.17 USD/h
Poland Central (PL) / polandcentral
0.153 USD/h 0.17 USD/h
Qatar Central (QA) / qatarcentral
0.153 USD/h 0.17 USD/h
West Europe (NL) / westeurope
0.153 USD/h 0.17 USD/h
West US (US) / westus
0.1584 USD/h 0.176 USD/h
South Central US (US) / southcentralus
0.1593 USD/h 0.177 USD/h
West Central US (US) / westcentralus
0.1593 USD/h 0.177 USD/h
UAE North (AE) / uaenorth
0.1602 USD/h 0.178 USD/h
UK West (GB) / ukwest
0.1602 USD/h 0.178 USD/h
Korea Central (KR) / koreacentral
0.1656 USD/h 0.184 USD/h
Australia Central (AU) / australiacentral
0.1683 USD/h 0.187 USD/h
Australia Central 2 (AU) / australiacentral2
0.1683 USD/h 0.187 USD/h
Australia East (AU) / australiaeast
0.1683 USD/h 0.187 USD/h
Norway East (NO) / norwayeast
0.1683 USD/h 0.187 USD/h
Southeast Asia (SG) / southeastasia
0.1683 USD/h 0.187 USD/h
Switzerland North (CH) / switzerlandnorth
0.1683 USD/h 0.187 USD/h
West India (IN) / westindia
0.1701 USD/h 0.189 USD/h
Australia Southeast (AU) / australiasoutheast
0.1728 USD/h 0.192 USD/h
South Africa North (ZA) / southafricanorth
0.1728 USD/h 0.192 USD/h
Japan East (JP) / japaneast
0.1737 USD/h 0.193 USD/h
Japan West (JP) / japanwest
0.1737 USD/h 0.193 USD/h
New Zealand North (NZ) / newzealandnorth
0.1764 USD/h 0.196 USD/h
Chile Central (CL) / chilecentral
0.0972 USD/h 0.206 USD/h
East Asia (HK) / eastasia
0.1863 USD/h 0.207 USD/h
South India (IN) / southindia
0.1872 USD/h 0.208 USD/h
France South (FR) / francesouth
0.1953 USD/h 0.217 USD/h
Germany North (DE) / germanynorth
0.1989 USD/h 0.221 USD/h
UAE Central (AE) / uaecentral
0.2079 USD/h 0.231 USD/h
Brazil South (BR) / brazilsouth
0.2142 USD/h 0.238 USD/h
Norway West (NO) / norwaywest
0.2187 USD/h 0.243 USD/h
Switzerland West (CH) / switzerlandwest
0.2187 USD/h 0.243 USD/h
South Africa West (ZA) / southafricawest
0.225 USD/h 0.25 USD/h
Brazil Southeast (US) / brazilsoutheast
0.279 USD/h 0.31 USD/h

Processor

vCPUs
4
Hypervisor
Microsoft Hyper-V
CPU Allocation
Burstable
CPU Cores
2
CPU Speed
2.8 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
8370C
CPU L1D Cache
48 KiB
CPU L1D Cache Total
96 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
64 KiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
3 MiB
CPU L3 Cache
48 MiB
CPU L3 Cache Total
48 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, tsc_reliable, nonstop_tsc, cpuid, aperfmperf, 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, fsgsbase, tsc_adjust, bmi1, hle, avx2, smep, bmi2, erms, invpcid, rtm, avx512f, avx512dq, rdseed, adx, smap, avx512ifma, clflushopt, clwb, avx512cd, sha_ni, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, avx512vbmi, umip, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, avx512_vpopcntdq, la57, rdpid, fsrm, arch_capabilities
Ecpus
2
Scalability
50

System Resources and Accelerators

MEMORY
Memory Amount
8 GiB
Memory Amount Actual
8 GiB
ACCELERATORS
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    STORAGE
    Storage Size
    0 GB
    Storages
      NETWORK
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      A burstable, budget-friendly virtual machine with moderate single-core performance for light workloads and variable CPU utilization demands.

      Burstable & BudgetGeneral Purpose

      Microsoft Azure B4ls_v2 is a burstable virtual machine from the Bsv2 family, featuring 4 vCPUs and 8.0 GB of RAM. Powered by an Intel Xeon 8370C processor running at 2.8 GHz on the x86_64 architecture, this instance does not include local storage or GPU accelerators. Benchmark results indicate average single-core CPU performance, but weak multi-core and memory bandwidth capabilities, with Passmark memory scores ranking in the poor tier. The server demonstrates average throughput in static web serving and single-threaded compression tasks. Given its burstable CPU allocation and low memory-to-vCPU ratio of 2.0 GB per core, the B4ls_v2 is a cost-effective option for workloads with variable CPU demands, such as low-traffic web servers, light background processing, and basic text processing tasks.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.33Score
      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) 552,839 ops/sec 1,919,289 ops/sec 0.29 50.00% 50.00% -46.00%
      Redis RPS (pipeline=16, SET) 2,778,859 ops/sec 11,728,058 ops/sec 0.23 20.00% 20.00% -25.00%
      PassMark Memory Mark (composite) 1,127 2,416 0.46 10.00% 10.00% -7.50%
      Memory bandwidth (read, 16 MB ~ L3) 37,850 MB/sec 108,466 MB/sec 0.35 10.00% 10.00% -10.00%
      PassMark single-thread CPU 2,427 Mops/s 2,365 Mops/s 1 10.00% 10.00% 0.00%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,635

      Geekbench Multi-Core

      Score: 3,495

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 5,896
      Compression
      		 63,391
      Encryption
      		 3,624
      Extended Instructions
      		 3,464
      Floating Point Maths
      		 8,571
      Integer Maths
      		 16,758
      Physics
      		 713
      Prime Numbers
      		 37
      Single Threaded
      		 2,427
      String Sorting
      		 8,853

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 1,127
      Database Operations
      		 2,025
      Memory Latency
      		 52
      Memory Read Cached
      		 24,432
      Memory Read Uncached
      		 10,873
      Memory Write
      		 10,480

      Stress-ng Stressors

      CPU integerSingleMultiScaling
      atomic
      		 302.38 336.08 1.11×
      bitops
      		 130,652 265,434 2.03×
      branch
      		 137,558 434,144 3.16×
      funccall
      		 637.38 1,307 2.05×
      funcret
      		 11,868 34,179 2.88×
      hash
      		 151,838 434,089 2.86×
      intmath
      		 61,262 150,333 2.45×
      nop
      		 187,425 332,686 1.78×
      prime
      		 393,326 858,841 2.18×
      rotate
      		 97,930 206,923 2.11×
      str
      		 902,948 1,790,019 1.98×
      wcs
      		 615,637 1,058,015 1.72×
      CryptographySingleMultiScaling
      crypt
      		 2,840 5,234 1.84×
      CompressionSingleMultiScaling
      jpeg
      		 709.9 1,819 2.56×
      zlib
      		 58.19 202.99 3.49×
      HypervisorSingleMultiScaling
      clock
      		 37,648 106,185 2.82×
      clone
      		 934.86 1,025 1.10×
      context
      		 5,468 17,182 3.14×
      cpu-sched
      		 73.05 257.97 3.53×
      eventfd
      		 39,663 382,980 9.66×
      fault
      		 15,353 33,741 2.20×
      fork
      		 5,519 14,850 2.69×
      getrandom
      		 50,054 114,676 2.29×
      hrtimers
      		 122,893 580,762 4.73×
      mprotect
      		 1,025,176 1,232,013 1.20×
      mtx
      		 12,255,106 130,505,422 10.65×
      munmap
      		 4,096 10,811 2.64×
      null
      		 863,141 2,454,145 2.84×
      pipe
      		 847,907 2,726,947 3.22×
      priv-instr
      		 823,474 2,075,710 2.52×
      resched
      		 1,087,180 384,336 0.35×
      switch
      		 61,232 962,676 15.72×
      timermix
      		 263,687 801,774 3.04×
      tlb-shootdown
      		 7,027 8,357 1.19×
      tsc
      		 898,698 2,463,147 2.74×
      usersyscall
      		 692,936 1,796,216 2.59×
      vdso
      		 119,827,332 250,484,806 2.09×
      vfork
      		 29,802 104,275 3.50×
      x86syscall
      		 10,792,977 33,283,935 3.08×
      yield
      		 3,324,896 3,919,389 1.18×
      zero
      		 4,642,647 11,203,582 2.41×
      CPU float/SIMDSingleMultiScaling
      eigen
      		 14,634 38,052 2.60×
      expmath
      		 2,897 8,408 2.90×
      fma
      		 661,004 2,285,021 3.46×
      fp
      		 191.24 413.8 2.16×
      fractal
      		 5 14.8 2.96×
      hyperbolic
      		 3,079 9,052 2.94×
      logmath
      		 4,852 13,977 2.88×
      matrix
      		 3,790 10,631 2.81×
      matrix-3d
      		 757.99 1,173 1.55×
      monte-carlo
      		 280.42 816.82 2.91×
      mpfr
      		 1,407 3,023 2.15×
      powmath
      		 1,689 4,991 2.96×
      trig
      		 1,977 4,974 2.52×
      veccmp
      		 20,810 39,096 1.88×
      vecfp
      		 1,531 3,933 2.57×
      vecmath
      		 3,290 9,302 2.83×
      vecshuf
      		 665.49 1,446 2.17×
      vecwide
      		 31,961 73,623 2.30×
      AlgorithmsSingleMultiScaling
      bitonicsort
      		 8 16 2.00×
      bsearch
      		 247.84 631.83 2.55×
      bubblesort
      		 1 1.6 1.60×
      fibsearch
      		 289.76 689.04 2.38×
      heapsort
      		 9.4 21.8 2.32×
      hsearch
      		 7,090 16,208 2.29×
      insertionsort
      		 10.4 12.4 1.19×
      malloc
      		 2,556,903 9,543,706 3.73×
      mcontend
      		 146.02 798.87 5.47×
      mergesort
      		 26.8 75.2 2.81×
      qsort
      		 20.6 44 2.14×
      skiplist
      		 5,436 15,762 2.90×
      tree
      		 1.6 4.8 3.00×
      MemorySingleMultiScaling
      cache
      		 356,610 508,837 1.43×
      cachehammer
      		 347,435 1,288,518 3.71×
      cacheline
      		 35.18 154.2 4.38×
      l1cache
      		 900.35 772.31 0.86×
      memcpy
      		 407.1 800.94 1.97×
      memrate
      		 1.78 3.92 2.20×
      memthrash
      		 78.78 176.65 2.24×
      ptr-chase
      		 32,920,622 59,875,478 1.82×
      spinmem
      		 426.78 249.95 0.59×
      stream
      		 37.67 372.11 9.88×
      vm
      		 152,184 255,932 1.68×

      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
      B2ts_v2 21 GiB0
      B2ls_v2 24 GiB0
      B2s_v2 28 GiB0
      B4s_v2 416 GiB0
      B8ls_v2 816 GiB0
      B8s_v2 832 GiB0
      B16ls_v2 1632 GiB0

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      B4ls_v2 FAQs