REPLY: 2:280/464.113 626485a1
MSGID: 2:5020/1042 62693e4b
CHRS: CP866 2
TZUTC: 0300
TID: hpt/lnx 1.9 2022-02-13
Hello Maurice,

23 April 2022, Maurice Kinal wrote to Benny Pedersen:

 BP>> without the  grep it was a long story

 MK> AH!  Ye olde compatibilty issue.  Also grep here has pcre as a
 MK> dependency which adds perl regexp.  I haven't used a stock grep
 MK> (without pcre) in ages so I don't recall all the differences offhand.
 MK> Anyhow here is the answer we are looking for;

 BP>>   -march=                               znver2

 MK> Excellent!  That is what I suspected from a spec sheet I found posted
 MK> somewhere, execpt they called it Zen2 if I am not mistaken.

 MK>>> If true then what a terrible waste.

 BP>> in what way a waste ?

 MK> We misunderstood each other.  If gcc wasn't onboard, which it
 MK> obviously is, then it would have been a wasted machine.  Without gcc
 MK> you might as well install windows and then take it out back and shoot
 MK> it (ie put it out of it's misery).  However from what I see I'm
 MK> definetly interested, although I believe there is a new ryzen that I
 MK> am led to believe is a znver3.  It is also an Asus and is roughly the
 MK> same cost as yours.

$ gcc -c -Q -march=native --help=target | grep '^  -march='
  -march=                               znver3

# lshw
[...]
  *-core
       description: Motherboard
       product: PRIME B550-PLUS
       vendor: ASUSTeK COMPUTER INC.
[...]
     *-memory
          description: System Memory
          physical id: 32
          slot: System board or motherboard
          size: 64GiB
[...]
     *-cpu
          description: CPU
          product: AMD Ryzen 7 5700G with Radeon Graphics
          vendor: Advanced Micro Devices [AMD]
          physical id: 37
          bus info: cpu@0
          version: AMD Ryzen 7 5700G with Radeon Graphics
          serial: Unknown
          slot: AM4
          size: 2423MHz
          capacity: 4672MHz
          width: 64 bits
          clock: 100MHz
          capabilities: lm fpu fpu_exception wp vme de pse tsc msr pae mce cx8
apic sep mtrr pge mca cmov
          configuration: cores=8 enabledcores=8 threads=16

Michael

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