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Re: Profiling a build



cryintothebluesky%gmail.com@localhost (Sad Clouds) writes:

>I have two Raspberry Pi 4 SOCs and each has Samsung T7 SSD attached to
>USB3 port. For sequential writes using 64 KiB block size I get these
>metrics:

No question. Sequentially reading and writing works fine.

The cost for NFS is in metadata operations, including opening
files because an open traverses the pathname component-by-component.
I could get a noticeable improvement by patching pkgsrc to use
relative pathnames instead of absolute ones.

A local filesystem (and that it includes a local filesystem on
an iSCSI disk) doesn't have that overhead.



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