From: "Joseph D. Wagner" <wagnerjd@prodigy.net>
To: "'Arjan van de Ven'" <arjanv@redhat.com>, <imran.badr@cavium.com>
Cc: "'Linux-kernel'" <linux-kernel@vger.kernel.org>
Subject: RE: vmalloc
Date: Wed, 11 Dec 2002 00:16:54 -0600 [thread overview]
Message-ID: <000c01c2a0dc$e866dda0$972a3a41@joe> (raw)
In-Reply-To: <1039554761.10002.31.camel@laptop.fenrus.com>
>> Is there any limitation on the amount of
>> memory that can be allocated by using vmalloc
>> ( like 128KB for kmalloc) ?
> for x86 you shouldn't count on being to get more
> than 64Mb of vmalloc memory (even though most
> machines go upto 128Mb at least)
According to the specifications, vmalloc is limited only by the amount of
physical memory on your machine. However, Arjan VanDeVen has a point.
Other process are already using physical memory (like the kernel process),
and those process count against the physical memory available.
TIP: It's always nice to leave at least 20% of the physical memory free for
other critical processes, especially those that can't be swapped out.
Joseph Wagner
next prev parent reply other threads:[~2002-12-11 6:09 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-10 20:50 [BK-2.4] [Patch] Small do_mmap_pgoff correction DervishD
2002-12-10 21:02 ` vmalloc Imran Badr
2002-12-10 21:12 ` vmalloc Arjan van de Ven
2002-12-11 6:16 ` Joseph D. Wagner [this message]
[not found] <CAMGjyMubkhwFwHyfYHeJH4fUXOpexCtZ1RLgWDTRSw2Vf-86wg@mail.gmail.com>
2016-09-06 14:42 ` Vmalloc Er Krishna
2016-09-06 18:36 ` Vmalloc Prabhunath G
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