Date: Sun, 18 Nov 2018 08:02:53 -0500 From: George Mitchell <george+freebsd@m5p.com> To: freebsd-hackers@freebsd.org Subject: Re: 13-CURRENT: several GB swap being used despite plenty of free RAM Message-ID: <0fd769af-9a7d-95cf-7cba-5e41e3bc3c30@m5p.com> In-Reply-To: <CACc-My33oRg7eqjfDuEQU51inyydc66Hx%2B-DysqmdKyyMVVJsA@mail.gmail.com> References: <freebsd-hackers@freebsd.org> <F5ACF6D0-DBD7-416F-9AAC-7709771FE545@yahoo.com> <201811180154.wAI1smhg049214@slippy.cwsent.com> <CACc-My33oRg7eqjfDuEQU51inyydc66Hx%2B-DysqmdKyyMVVJsA@mail.gmail.com>
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --XVc9df5vdVSPHE3rcRFs2LyhdBuvqkizr Content-Type: multipart/mixed; boundary="rJOsc9QsAnfUOkqf21F8wVTeJwhF6WhiX"; protected-headers="v1" From: George Mitchell <george+freebsd@m5p.com> To: freebsd-hackers@freebsd.org Message-ID: <0fd769af-9a7d-95cf-7cba-5e41e3bc3c30@m5p.com> Subject: Re: 13-CURRENT: several GB swap being used despite plenty of free RAM References: <freebsd-hackers@freebsd.org> <F5ACF6D0-DBD7-416F-9AAC-7709771FE545@yahoo.com> <201811180154.wAI1smhg049214@slippy.cwsent.com> <CACc-My33oRg7eqjfDuEQU51inyydc66Hx+-DysqmdKyyMVVJsA@mail.gmail.com> In-Reply-To: <CACc-My33oRg7eqjfDuEQU51inyydc66Hx+-DysqmdKyyMVVJsA@mail.gmail.com> --rJOsc9QsAnfUOkqf21F8wVTeJwhF6WhiX Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 11/18/18 7:11 AM, Stefan Blachmann wrote: > The inconveniences that the new swapping strategy causes are a regular > topic in the FreeBSD forums. >=20 > Desktop users complain about lagginess, server users complain of long > delays because server processes intended to be kept in memory for > quick response times got swapped out and need to be swapped in again, > resulting in outrageously poor server performance in spite of plenty > of unused memory. [...] Before necessarily blaming swapping, have you tried substituting SCHED_4BSD for SCHED_ULE in the kernel? SCHED_ULE is not the world champion scheduler for interactive tasks. (I'm ducking back into my rabbit hole now and no one needs to throw any more brickbats at me. Sorry for the digression.) -- George --rJOsc9QsAnfUOkqf21F8wVTeJwhF6WhiX-- --XVc9df5vdVSPHE3rcRFs2LyhdBuvqkizr Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEENdM4ZHktsJW5kKZXwRES3m+p4fkFAlvxYwQACgkQwRES3m+p 4fmjRBAAihC7l1I+In9fPAphzcafqWDN6pm2ota5pSP96qs+zZqXBFZJSD6SOOYS 436n0ie2aYWEBhO199gqHTm+w//eQgyM+AuAH/RSonC/PlUf/TNLDYhxJJXdroWd UIapoR/PkYuMScGrqVv5Kqp2TyQa2eUJIFz9PDFlo28yiIczyU0D4uq+vUP0QgHu kuAJGIFWVMDHH7Lsh0IuuyPNGSYpmopaduQJY7TUVxmhfEcdrLf3sgnbjpnP0hpa bXk/d0SwlKG0KqDvyKhNdE17UT/eEUuUTvs/1A1ib2s98vyUV9hxwfdau0Az2E2+ Zx28yu3UdM7R5DhYF5dHmIu8Spl7LYiw7/XN0mm+6zHiScBrZoHa84w0s5MVg47d +dVpag0eGoXO9aeroR14ioQP1jCY/HyB9CBMAfxKDvUdHV7JvjXR/8MU6IjcM9U3 tqatLylitR+0foMApgV3hXhMgQV5to5GJI5K/mqzrZUKlmyGXTH3s7NFxRO3/K6q /+p5o4/aV9cMee+WWDXjnyLbGeFj2uIKS1/M6w304vDWwk+G/uPurYgBkmkngF+h HEgVK/J/Tk7cC++Ert4TX+mvSwOwIa4Mz64djWNVzUMQrpz0rED/VM0kxn0r5TkT QP97ZMr2C+rgvaWgIXxM7aVRBaLAvzCWMGKt4JuEPuvIvxQQv0Q= =/ywx -----END PGP SIGNATURE----- --XVc9df5vdVSPHE3rcRFs2LyhdBuvqkizr--
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