Date: Thu, 02 Feb 2023 15:45:38 +0000 From: jbo@insane.engineer To: "hackers@freebsd.org" <hackers@freebsd.org> Subject: Re: Swap, ZFS & ARC Message-ID: <c70BKF1xrExMKWQeTJtDhOqJVqISFp9RjHFwT0XWDh3sTXyi0NMRkVhOyp_YkTXXAV7Dtm4tK4_XsOwSXuZRT39ObYtFpPoe6biv22jMNnM=@insane.engineer> In-Reply-To: <1689ba8c-a317-ce1f-2854-99566468a9ed@grosbein.net> References: <ysSGWaXF7vCDubzgFdov_9k6SMLNdZ3-zHV-2LOraYOxV_8yoAkDVPqDSicYsgBw1KdL6BjP4FkK1KFs7NKZ4RRXcSDxVe_Qy_i7b_5AbSI=@insane.engineer> <1689ba8c-a317-ce1f-2854-99566468a9ed@grosbein.net>
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------- Original Message ------- On Thursday, February 2nd, 2023 at 14:41, Eugene Grosbein <eugen@grosbein.n= et> wrote: >=20 >=20 > 02.02.2023 21:28, jbo@insane.engineer wrote: >=20 > > Hello folks, > >=20 > > Based on a discussion on the forums not so long ago I tried to figure o= ut how swap usage on a ZFS system plays together with ARC. However, I could= find very little to no information on this which leads me to believe that = there is some "core concept" I might be oblivious to. > >=20 > > The main question is basically this: Your system starts to swap out dat= a from RAM to your swap partition. > > This swap data on disk ultimately resides somewhere in a ZFS pool. >=20 >=20 > I prefer not doing this. That is, all my systems have swap partition outs= ide of ZFS pool. This isn't really achievable on your average "single disk" desktop systems,= right? Assuming I'm not missing something (which is why I came here to ask), a "re= gular" or "default" installation through the FreeBSD installer would setup = a swap partition within the zpool, right?
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