Date: Mon, 8 Oct 2001 06:52:34 +0600 (YEKST) From: Ilia Chipitsine <ilia@cgu.chel.su> To: Poul-Henning Kamp <phk@critter.freebsd.dk> Cc: questions@FreeBSD.org Subject: Re: why it isn't possible to put more than 20Mb on the memory-based disk ? (system simply hangs) Message-ID: <Pine.BSF.4.10.10110080649040.478-100000@jane.poka.net> In-Reply-To: <1828.1002475715@critter.freebsd.dk>
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Salut, Poul-Henning Kamp ! On Sun, 7 Oct 2001, Poul-Henning Kamp wrote: > >> > >> man md > > > >and what ? > > malloc Backing store is allocated using malloc(9). Only one malloc- > bucket is used, which means that all md devices with malloc > backing must share the malloc-per-bucket-quota. The exact size > of this quota varies, in particular with the amount of RAM in > the system. The exact value can be determined with vmstat(8). it still doesn't make sense. I can successfully create memory based disk using MD_NSECT=120000, I'm able to mount it. "df" shows I have lots of free space on it. But when I try to put more than 20Mb on it, system hangs. "cp" process is in "MD sec" state with nice=-20. what's wrong ? $ vmstat procs memory page disks faults cpu r b w avm fre flt re pi po fr sr ad0 md0 in sy cs us sy id 1 1 0 63028 42020 72 1 2 0 40 0 0 0 538 622 554 5 6 89 $ (before I create and mount memory disk) did you try to put more than 20Mb on memory based disk ? (actually I need about 150-200Mb) Regards, (Наилучшие пожелания) Ilia Chipitsine (Илья Шипицин) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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