Only 1TB RAM out of 1.5TB on amd64

...
real memory  = 1649265344512 (1572862 MB)
avail memory = 1057138888704 (1008166 MB)
...

I suspect address space issues, but don't know for sure.
Changing NUMA nodes per socket in the BIOS had an influence to make it
worse, but not better.


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FreeBSD 13.3-RELEASE releng/13.3-n257428-80d2b634ddf0 GENERIC amd64
FreeBSD clang version 17.0.6 (https://github.com/llvm/llvm-project.git llvmorg-17.0.6-0-g6009708b4367)
VT(efifb): resolution 1024x768
CPU: AMD EPYC 7352 24-Core Processor                 (2300.07-MHz K8-class CPU)
  Origin="AuthenticAMD"  Id=0x830f10  Family=0x17  Model=0x31  Stepping=0
  Features=0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT>
  Features2=0x7ed8320b<SSE3,PCLMULQDQ,MON,SSSE3,FMA,CX16,SSE4.1,SSE4.2,MOVBE,POPCNT,AESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND>
  AMD Features=0x2e500800<SYSCALL,NX,MMX+,FFXSR,Page1GB,RDTSCP,LM>
  AMD Features2=0x75c237ff<LAHF,CMP,SVM,ExtAPIC,CR8,ABM,SSE4A,MAS,Prefetch,OSVW,IBS,SKINIT,WDT,TCE,Topology,PCXC,PNXC,DBE,PL2I,MWAITX,ADMSKX>
  Structured Extended Features=0x219c91a9<FSGSBASE,BMI1,AVX2,SMEP,BMI2,PQM,PQE,RDSEED,ADX,SMAP,CLFLUSHOPT,CLWB,SHA>
  Structured Extended Features2=0x400004<UMIP,RDPID>
  XSAVE Features=0xf<XSAVEOPT,XSAVEC,XINUSE,XSAVES>
  AMD Extended Feature Extensions ID EBX=0x18cf757<CLZERO,IRPerf,XSaveErPtr,RDPRU,MCOMMIT,WBNOINVD,IBPB,IBRS,STIBP,PREFER_IBRS,PPIN,SSBD>
  SVM: NP,NRIP,VClean,AFlush,DAssist,NAsids=32768
  TSC: P-state invariant, performance statistics
real memory  = 1649265344512 (1572862 MB)
avail memory = 1057138888704 (1008166 MB)
Event timer "LAPIC" quality 600
ACPI APIC Table: <SUPERM SMCI--MB>
FreeBSD/SMP: Multiprocessor System Detected: 96 CPUs
FreeBSD/SMP: 2 package(s) x 8 cache groups x 3 core(s) x 2 hardware threads
random: registering fast source Intel Secure Key RNG
random: fast provider: "Intel Secure Key RNG"
random: unblocking device.
ioapic0 <Version 2.1> irqs 0-23
ioapic1 <Version 2.1> irqs 24-55
ioapic2 <Version 2.1> irqs 56-87
ioapic3 <Version 2.1> irqs 88-119
ioapic4 <Version 2.1> irqs 120-151
ioapic5 <Version 2.1> irqs 152-183
ioapic6 <Version 2.1> irqs 184-215
ioapic7 <Version 2.1> irqs 216-247
ioapic8 <Version 2.1> irqs 248-279
Launching APs: 32 30 34 13 14 16 23 21 19 24 28 9 86 10 87 7 26 37 39 41 45 46 43 66 71 69 54 57 59 80 82 78 49 53 51 60 65 62 84 88 91 95 74 73 76 92 33 40 11 2 27 22 20 5 44 18 15 36 6 8 25 89 79 85 93 56 48 70 31 81 12 50 38 77 55 63 75 58 1 90 29 94 52 72 67 83 35 42 61 64 68 47 4 17 3
random: entropy device external interface
kbd1 at kbdmux0
...

kern.maxphys: 1048576
hw.physmem: 1099322220544
hw.usermem: 1091323355136
hw.realmem: 1649265344512
vm.phys_locality: 
0: 10 32 
1: 32 10 

vm.phys_segs: 
SEGMENT 0:

start:     0x10000
end:       0xa0000
domain:    0
free list: 0xffffffff81ec7ea0

SEGMENT 1:

start:     0x100000
end:       0x1000000
domain:    0
free list: 0xffffffff81ec7ea0

SEGMENT 2:

start:     0x1000000
end:       0x74000000
domain:    0
free list: 0xffffffff81ec7c30

SEGMENT 3:

start:     0x74043000
end:       0x75db0000
domain:    0
free list: 0xffffffff81ec7c30

SEGMENT 4:

start:     0x76000000
end:       0x963b8000
domain:    0
free list: 0xffffffff81ec7c30

SEGMENT 5:

start:     0x963c2000
end:       0x963f9000
domain:    0
free list: 0xffffffff81ec7c30

SEGMENT 6:

start:     0x96500000
end:       0xa57f7000
domain:    0
free list: 0xffffffff81ec7c30

SEGMENT 7:

start:     0xa8e96000
end:       0xac000000
domain:    0
free list: 0xffffffff81ec7c30

SEGMENT 8:

start:     0x10000e000
end:       0x7d07800000
domain:    0
free list: 0xffffffff81ec79c0

SEGMENT 9:

start:     0x10000019000
end:       0x1797de00000
domain:    1
free list: 0xffffffff81ec8110

SEGMENT 10:

start:     0x17ffdc00000
end:       0x17ffdde7000
domain:    1
free list: 0xffffffff81ec8110



-- 
B.Walter <bernd@bwct.de> https://www.bwct.de
Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.