Re: Analysis of the overhead of frame pointers on gcc compiles

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On Sat, Oct 21, 2023 at 12:35:30PM -0700, John Reiser wrote:
> Because of the impact of data cache performance, it is important to
> state the CPU, RAM, and cache characteristics when measuring performance.
> Such as: the beginning of /proc/cpuinfo:

I ran the tests a number of times to attempt to eliminate cache
effects, but here are those details:

processor    : 0
vendor_id    : AuthenticAMD
cpu family   : 25
model	       : 97
model name     : AMD Ryzen 9 7950X 16-Core Processor
stepping       : 2
microcode      : 0xa601203
cpu MHz	       	 : 4500.000
cache size	 : 1024 KB
physical id	 : 0
siblings : 32
core id	   : 0
cpu cores  : 16
apicid	     : 0
initial apicid : 0
fpu	       : yes
fpu_exception  : yes
cpuid level    : 16
wp    	       : yes
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 rdtscp lm constant_tsc rep_good amd_lbr_v2 nopl nonstop_tsc cpuid extd_apicid aperfmperf rapl pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb cat_l3 cdp_l3 hw_pstate ssbd mba perfmon_v2 ibrs ibpb stibp ibrs_enhanced vmmcall fsgsbase bmi1 avx2 smep bmi2 erms invpcid cqm rdt_a avx512f avx512dq rdseed adx smap avx512ifma clflushopt clwb avx512cd sha_ni avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local avx512_bf16 clzero irperf xsaveerptr rdpru wbnoinvd cppc arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif x2avic v_spec_ctrl avx512vbmi umip pku ospke avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bitalg avx512_vpopcntdq rdpid overflow_recov succor smca fsrm flush_l1d
bugs		   : sysret_ss_attrs spectre_v1 spectre_v2 spec_store_bypass
bogomips	   : 8999.55
TLB size	   : 3584 4K pages
clflush size	   : 64
cache_alignment	   : 64
address sizes	   : 48 bits physical, 48 bits virtual
power management: ts ttp tm hwpstate cpb eff_freq_ro [13] [14]

As it's a completely standand 7950X you can look up the rest.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
nbdkit - Flexible, fast NBD server with plugins
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