From: rsc@plan9.bell-labs.com
To: 9fans@cse.psu.edu
Subject: Re: [9fans] venti arenas
Date: Wed, 30 Apr 2003 14:10:26 -0400 [thread overview]
Message-ID: <79a3035b869d65fb99f2e9fecf1ba9fd@plan9.bell-labs.com> (raw)
In-Reply-To: <7ae69a86431964c1aa5e77e8d3574406@9fs.org>
Jmk and I think the solution is this:
apsize = ap->size - ap->arenaBase;
n = apsize / asize;
fprint(2, "configuring %s with arenas=%d for a total storage of bytes=%lld and directory bytes=%d\n",
file, n, apsize, ap->tabSize);
ap->narenas = n;
ap->map = MKNZ(AMap, n);
ap->arenas = MKNZ(Arena*, n);
addr = ap->arenaBase;
for(i = 0; i < n; i++){
limit = addr + asize;
snprint(aname, ANameSize, "%s%d", name, i);
fprint(2, "adding arena %s at [%lld,%lld)\n", aname, addr, limit);
Even on a small system there are 200+ arenas.
Another half-sized one isn't going to help much.
Russ
next prev parent reply other threads:[~2003-04-30 18:10 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-30 7:22 nigel
2003-04-30 7:40 ` nigel
2003-04-30 9:03 ` Richard Miller
2003-04-30 9:10 ` Lucio De Re
2003-05-07 4:26 ` Boyd Roberts
2003-04-30 9:22 ` nigel
2003-04-30 18:10 ` rsc [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-04-01 6:34 nigel
2003-04-01 7:47 ` Martin C.Atkins
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