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Re: [Nmh-workers] new command lacks lock


From: Ken Hornstein
Subject: Re: [Nmh-workers] new command lacks lock
Date: Mon, 14 Oct 2013 18:26:51 -0400

>Even on local disk, I expect it makes a noticeable difference. Right
>now it takes 0.009s to run, with 940,047 files in 282 directories,
>11,994 unread total.

Ok, but it sounds like you're not scanning all of those directories, right?

I am not interested in having a feature regression, but I am wondering
how bad this really is nowadays.  How long does it take to do a "ls" on
all of those folders?  (Assuming you're not running a "ls" that requires
a stat() on each file, of course).  I use AFS over the Internet, and
some quick tests suggests to me that even in that case readdir() is
pretty quick.  If it's still lousy for you, then I'm willing to just
leave it as-is.  Although maybe it would make sense to expose some of the
APIs so the routines to read the sequence files could be used, rather
than duplicating code (hm, maybe they are already?).

--Ken



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