Hi Ken,
So when things start to bog down, how many files ARE in that
directory?
I didn't count, but I would guess more like 10-12,000 rather than 7,000.
But! The ,* filenames are long, `1234' becoming
`,42,1388604144.004903932', so getdents(..., 32KiB)'s throughput is
impacted.
I am looking at the critical part of folder_read(), and it doesn't
feel like we're doing much in there that that should slow things down
when it's not a message (unless atoi() ends up being slow).
http://git.savannah.gnu.org/cgit/nmh.git/tree/sbr/folder_read.c#n67
Agreed. About the only obvious thing would be to do the `.' and `,'
continue before the m_atoi(), but then for many people, [0-9]* may swamp
,* in volume.
As an aside, this gives a base-94 encoded datestamp mapped onto
printable `!' through to `~', giving better getdents() throughput. :-)
dc <<<94o`date +%s%N`p |
sed 's/^0$/ 00/; s/ ../33&+P/g; s/$/10P/' |
dc
Cheers, Ralph.
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