Date: Tue, 30 Jul 2024 20:54:00 +0200 From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@FreeBSD.org> To: Miroslav Lachman <000.fbsd@quip.cz> Cc: Warner Losh <imp@bsdimp.com>, FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: filemon Message-ID: <86jzh26793.fsf@ltc.des.dev> In-Reply-To: <f36ffaf3-dbd2-4f9b-a27d-923fb4fcb3fb@quip.cz> (Miroslav Lachman's message of "Tue, 30 Jul 2024 17:17:17 %2B0200") References: <ZqT6_a_0F8DCUsBm@int21h> <CAFDf7UKxhSu%2BqMGV1KahrSX9ho8vFut4avxNVX4D8QGa6%2B%2BTjQ@mail.gmail.com> <20240727170122.675f6bfe@ernst.home> <865xsn6ya9.fsf@ltc.des.dev> <a5471d18-7f88-4e24-8518-2c7a67ddd7f1@quip.cz> <CANCZdfoZ0Gy%2Bzq8YfmBYCgJPsWyxm-7bk0W0vTrzpwRts6vRgw@mail.gmail.com> <f36ffaf3-dbd2-4f9b-a27d-923fb4fcb3fb@quip.cz>
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Miroslav Lachman <000.fbsd@quip.cz> writes: > I'm a bit confused. If I understand it right, you say loader.conf > causes less memory fragmentation, but DES said "it still increases low > memory fragmentation". So what is true? And is this something to watch > out for, or is memory fragmentation not such a big deal? I used the wrong term. The loader loads the kernel and modules into a particular region of memory, while modules loaded after boot can go anywhere. Furthermore, modules loaded by the loader cannot be unloaded. So loading modules pre-boot does not increase fragmentation, but it uses up memory from a much more limited pool than loading them later. DES --=20 Dag-Erling Sm=C3=B8rgrav - des@FreeBSD.org
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