[Bug] Broken CSV generated on AMD 9375F 2P system

[helixzz]

I ran the core-to-core-latency binary (installed via cargo) and used the --csv parameter to save the results into a CSV file.

.cargo/bin/core-to-core-latency --csv > AMD_9375F.csv

However, when I tried to generate a plot using the Jupyter Notebook, an exception was thrown.

ParserError: Error tokenizing data. C error: Expected 128 fields in line 83, saw 188

Then I inspected the CSV using Excel and found it was indeed broken. Here's a screenshot to illustrate the incorrect line separation.

AMD_9375F.csv

[helixzz]

OS: Ubuntu 22.04.5 LTS

$ lscpu
Architecture:                x86_64
  CPU op-mode(s):            32-bit, 64-bit
  Address sizes:             52 bits physical, 57 bits virtual
  Byte Order:                Little Endian
CPU(s):                      128
  On-line CPU(s) list:       0-127
Vendor ID:                   AuthenticAMD
  Model name:                AMD EPYC 9375F 32-Core Processor
    CPU family:              26
    Model:                   2
    Thread(s) per core:      2
    Core(s) per socket:      32
    Socket(s):               2
    Stepping:                1
    Frequency boost:         enabled
    CPU max MHz:             3800.0000
    CPU min MHz:             1500.0000
    BogoMIPS:                7599.89
    Flags:                   fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdts
                             cp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf rapl pni pclmulqdq monitor ssse3 fma cx16 pcid sse4_1 sse4_2 x2api
                             c movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt t
                             ce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb cat_l3 cdp_l3 invpcid_single hw_pstate ssbd mba ibrs ibpb stibp ibrs_enhance
                             d vmmcall fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm rdt_a avx512f avx512dq rdseed adx smap avx512ifma clflushopt clwb avx512c
                             d sha_ni avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local avx_vnni avx512_bf16 clzero irpe
                             rf xsaveerptr rdpru wbnoinvd amd_ppin cppc arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthr
                             eshold avic v_vmsave_vmload vgif v_spec_ctrl avx512vbmi umip pku ospke avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bitalg avx512_vp
                             opcntdq la57 rdpid bus_lock_detect movdiri movdir64b overflow_recov succor smca fsrm avx512_vp2intersect flush_l1d
Virtualization features:     
  Virtualization:            AMD-V
Caches (sum of all):         
  L1d:                       3 MiB (64 instances)
  L1i:                       2 MiB (64 instances)
  L2:                        64 MiB (64 instances)
  L3:                        512 MiB (16 instances)
NUMA:                        
  NUMA node(s):              2
  NUMA node0 CPU(s):         0-31,64-95
  NUMA node1 CPU(s):         32-63,96-127
Vulnerabilities:             
  Gather data sampling:      Not affected
  Indirect target selection: Not affected
  Itlb multihit:             Not affected
  L1tf:                      Not affected
  Mds:                       Not affected
  Meltdown:                  Not affected
  Mmio stale data:           Not affected
  Reg file data sampling:    Not affected
  Retbleed:                  Not affected
  Spec rstack overflow:      Not affected
  Spec store bypass:         Mitigation; Speculative Store Bypass disabled via prctl and seccomp
  Spectre v1:                Mitigation; usercopy/swapgs barriers and __user pointer sanitization
  Spectre v2:                Mitigation; Enhanced / Automatic IBRS; IBPB conditional; STIBP always-on; PBRSB-eIBRS Not affected; BHI Not affected
  Srbds:                     Not affected
  Tsx async abort:           Not affected