From: Benjamin LaHaise <bcrl@redhat.com>
To: Jos Hulzink <josh@stack.nl>
Cc: Stas Sergeev <stssppnn@yahoo.com>, linux-kernel@vger.kernel.org
Subject: Re: Larger IO bitmap?
Date: Sat, 2 Nov 2002 18:19:52 -0500 [thread overview]
Message-ID: <20021102181952.C2748@redhat.com> (raw)
In-Reply-To: <200211022248.11869.josh@stack.nl>; from josh@stack.nl on Sat, Nov 02, 2002 at 10:48:11PM +0100
On Sat, Nov 02, 2002 at 10:48:11PM +0100, Jos Hulzink wrote:
> Hi,
>
> Increasing the IO bitmap size has huge effects on your Task State Segment
> size. It sure is possible to increase that size, but be aware that this means
> you are using megabytes for your TSS's only !
Keep in mind that a task's io bitmap is now lazily allocated, so by
default no memory will be allocated for it. A similar enhancement
for large vs small io bitmaps could be made by allowing the task io
bitmap to be a variable size.
-ben
next prev parent reply other threads:[~2002-11-02 23:13 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-02 18:21 Larger IO bitmap? Stas Sergeev
2002-11-02 21:48 ` Jos Hulzink
2002-11-02 23:19 ` Benjamin LaHaise [this message]
2002-11-03 1:42 ` Denis Vlasenko
2002-11-02 23:38 ` Denis Vlasenko
-- strict thread matches above, loose matches on Subject: below --
2002-11-02 22:47 Stas Sergeev
2002-11-02 23:56 Stas Sergeev
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