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  • nvme

    From Maurice Kinal@1:153/7001.2989 to Benny Pedersen on Friday, July 29, 2022 01:29:51
    Hey Benny!

    dmidecode> Handle 0x0005, DMI type 9, 17 bytes
    dmidecode> System Slot Information
    dmidecode> Designation: M2M
    dmidecode> Type: x1 PCI Express
    dmidecode> Current Usage: In Use
    dmidecode> Length: Short
    dmidecode> ID: 34
    dmidecode> Characteristics:
    dmidecode> 3.3 V is provided
    dmidecode> Opening is shared
    dmidecode> PME signal is supported
    dmidecode> Bus Address: 0000:04:00.0

    The above is for the nvme interface and should be noted that it is x1. That means I'll never get the extra performance that these disks have to offer. However not is all lost as it makes an excellent boot device at sata speeds with the extra enhanced uefi bootablility of nvme (ie partuuid instead of hdx limitations).

    Bottomline is don't bother investing in a high performace nvme disk when it will never attain that level of performance.

    Life is good,
    Maurice

    ... Fidonet 4K - Must be voodoo.
    --- GNU bash, version 5.1.16(1)-release (x86_64-znver2-linux-gnu)
    * Origin: One of us @ (1:153/7001.2989)
  • From Maurice Kinal@2:280/464.113 to Maurice Kinal on Friday, July 29, 2022 02:13:03
    Hey Maurice!

    dmidecode> Handle 0x0005, DMI type 9, 17 bytes
    dmidecode> System Slot Information
    dmidecode> Designation: M2B
    dmidecode> Type: x1 PCI Express
    dmidecode> Current Usage: In Use
    dmidecode> Length: Short
    dmidecode> ID: 34
    dmidecode> Characteristics:
    dmidecode> 3.3 V is provided
    dmidecode> Opening is shared
    dmidecode> PME signal is supported
    dmidecode> Bus Address: 0000:01:00.0

    It is the same situation on the x86_64-znver1-linux-gnu host. Different chipsets but the result is the same.

    Life is good,
    Maurice

    ... Ne mæg werig mod wyrde wiðstondan, ne se hreo hyge helpe gefremman.
    A weary mind cannot withstand fate, nor a sad heart offer help.
    --- GNU bash, version 5.1.16(1)-release (x86_64-znver1-linux-gnu)
    * Origin: Little Mikey's EuroPoint @ (2:280/464.113)