On 6/1/22, Steve Simon <st...@quintile.net> wrote:
> for performance testing why not copy from ramfs on one machine to ramfs on
> another?

ramfs is single-process and thus quite slow.

> the suggestion from a 9con passim was to have fossil/cwfs/hjfs etc add a Qid
> type flag to files indicating they are from backing store (QTSTABLE ?)and
> thus may be copied in parallel. devices and synthetic would not normally
> have this flag forcing the read or write be sequential.

yeah, that's what my comment about readahead is based on. this work
has been already done at least for cwfs.

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