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On 4/26/21 10:14 PM, thelma@×××××××××××.com wrote: |
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> On 4/26/21 10:09 PM, cal wrote: |
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>> On 4/26/21 8:56 PM, thelma@×××××××××××.com wrote: |
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>>> My new PC has two 8GB sticks so total 16GB RAM |
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>>> but cat /proc/meminfo |
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>>> MemTotal: 14230648 kB |
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>>> Shouldn't it show 15GB+ ? |
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>>> |
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>> The kernel takes up some RAM, although I wouldn't expect 2GB worth. You can check that with `dmesg | grep Memory:`. |
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>> |
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>> The other possibility is that your RAM manufacturer used "gigabyte" to mean 10^9 instead of 2^30, meaning that you actually have fewer than 16GiB. Hard disk manufacturers have been pulling this trick for years; I'm not sure if it's common for RAM. |
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>> |
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>> cal |
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> |
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> Thanks for the input. I forgot to mention that this AMD is CPU +GPU, so is it possible that GPU take some RAM? |
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> |
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> dmesg | grep Memory |
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> [ 0.065475] Memory: 14159016K/14587784K available (16397K kernel code, 2527K rwdata, 3968K rodata, 1172K init, 1552K bss, 428508K reserved, 0K cma-reserved) |
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> [ 1.553492] amdgpu 0000:09:00.0: amdgpu: Trusted Memory Zone (TMZ) feature disabled as experimental (default) |
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> |
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> |
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By CPU+GPU, you mean the GPU is integrated into the CPU die? If so, |
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then yes, it is likely sharing system RAM. Elsewhere in dmesg probably |
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says how much. You can also probably find this in the BIOS somewhere. |
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cal |
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