On 14 Jun 2018, at 17:29 (-0400), Randall Meadows wrote:
(they claim that lots of messages in INBOX slows things down)
That is not implausible. In fact, it makes a lot of sense.
INBOX sees a lot of random-ish single-message churn, making it ideal for
a file-per-message/directory-per-mailbox storage mechanism (such as
Maildir+) so that delivery and deletion processes can avoid needing
exclusive locks on multi-message files. On the other hand,
file-per-message/directory-per-mailbox storage mechanisms tend to get
slower as the message count in a mailbox grows, often degrading quite
ungracefully. For very large message/mailbox ratios, file-per-mailbox
(e.g. mbox) storage with server-managed indexing is more efficient, as
long as there isn't a lot of movement of messages out of a mailbox once
they've gone in.
--
Bill Cole
[email protected] or [email protected]
(AKA @grumpybozo and many *@billmail.scconsult.com addresses)
Currently Seeking Steadier Work: https://linkedin.com/in/billcole
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