nviennot / core-to-core-latency

Measures the latency between CPU cores
MIT License
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[Result] 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz #53

Open b-Tomas opened 2 years ago

b-Tomas commented 2 years ago

File: 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz.csv OS: Pop!_OS 22.04 LTS x86_64

Interesting to see the difference with the i7-1165G7

❯ core-to-core-latency 5000
CPU: 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz
Num cores: 8
Num iterations per samples: 5000
Num samples: 300

1) CAS latency on a single shared cache line

           0       1       2       3       4       5       6       7
      0
      1   30±1
      2   29±0    28±0
      3   27±0    26±0    26±0
      4    7±0    29±0    29±0    27±0
      5   29±0     7±0    28±0    26±0    29±0
      6   29±0    28±0     7±0    26±0    28±0    28±0
      7   28±0    27±0    28±0     7±0    27±0    26±0    27±0

    Min  latency: 6.8ns ±0.0 cores: (5,1)
    Max  latency: 30.3ns ±0.6 cores: (1,0)
    Mean latency: 24.8ns
❯ lscpu
Architecture:            x86_64
  CPU op-mode(s):        32-bit, 64-bit
  Address sizes:         39 bits physical, 48 bits virtual
  Byte Order:            Little Endian
CPU(s):                  8
  On-line CPU(s) list:   0-7
Vendor ID:               GenuineIntel
  Model name:            11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz
    CPU family:          6
    Model:               140
    Thread(s) per core:  2
    Core(s) per socket:  4
    Socket(s):           1
    Stepping:            1
    CPU max MHz:         4200,0000
    CPU min MHz:         400,0000
    BogoMIPS:            4838.40
    Flags:               fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clf
                         lush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm c
                         onstant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc c
                         puid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx est
                         tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt ts
                         c_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_
                         fault epb cat_l2 invpcid_single cdp_l2 ssbd ibrs ibpb stibp ibrs_enhanced t
                         pr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 s
                         mep bmi2 erms invpcid rdt_a avx512f avx512dq rdseed adx smap avx512ifma clf
                         lushopt clwb intel_pt avx512cd sha_ni avx512bw avx512vl xsaveopt xsavec xge
                         tbv1 xsaves split_lock_detect dtherm ida arat pln pts hwp hwp_notify hwp_ac
                         t_window hwp_epp hwp_pkg_req avx512vbmi umip pku ospke avx512_vbmi2 gfni va
                         es vpclmulqdq avx512_vnni avx512_bitalg avx512_vpopcntdq rdpid movdiri movd
                         ir64b fsrm avx512_vp2intersect md_clear ibt flush_l1d arch_capabilities
Virtualization features:
  Virtualization:        VT-x
Caches (sum of all):
  L1d:                   192 KiB (4 instances)
  L1i:                   128 KiB (4 instances)
  L2:                    5 MiB (4 instances)
  L3:                    8 MiB (1 instance)
NUMA:
  NUMA node(s):          1
  NUMA node0 CPU(s):     0-7
Vulnerabilities:
  Itlb multihit:         Not affected
  L1tf:                  Not affected
  Mds:                   Not affected
  Meltdown:              Not affected
  Mmio stale data:       Not affected
  Retbleed:              Not affected
  Spec store bypass:     Mitigation; Speculative Store Bypass disabled via prctl
  Spectre v1:            Mitigation; usercopy/swapgs barriers and __user pointer sanitization
  Spectre v2:            Mitigation; Enhanced IBRS, IBPB conditional, RSB filling
  Srbds:                 Not affected
  Tsx async abort:       Not affected