Date: Thu, 21 Feb 2019 08:00:48 +0000 From: Matthew Seaman <matthew@FreeBSD.org> To: Jonathan Anderson <jonathan@FreeBSD.org>, Alex Dupre <ale@FreeBSD.org> Cc: Colin Percival <cperciva@freebsd.org>, freebsd-hackers@freebsd.org Subject: Re: Amazon AMIs Message-ID: <f51b836f-6a40-9be3-425a-e1afd301507b@FreeBSD.org> In-Reply-To: <E396A0C7-F939-48A1-9B57-D643806B303B@FreeBSD.org> References: <f002c020-1e63-c12f-456e-e20f8546a701@FreeBSD.org> <8a139c9c-b98b-4a54-1d7c-0ea1e3dc7a72@freebsd.org> <53a0bd68-a6ba-e8ad-4af2-abeb22e92c03@FreeBSD.org> <E396A0C7-F939-48A1-9B57-D643806B303B@FreeBSD.org>
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --HX6jbUfHfGv6M0EqGuksQH7fZ31yWhQwu Content-Type: multipart/mixed; boundary="l4dnDZyxVlkgmR0LDNyl4Q9W3EtsrSlWI"; protected-headers="v1" From: Matthew Seaman <matthew@FreeBSD.org> To: Jonathan Anderson <jonathan@FreeBSD.org>, Alex Dupre <ale@FreeBSD.org> Cc: Colin Percival <cperciva@freebsd.org>, freebsd-hackers@freebsd.org Message-ID: <f51b836f-6a40-9be3-425a-e1afd301507b@FreeBSD.org> Subject: Re: Amazon AMIs References: <f002c020-1e63-c12f-456e-e20f8546a701@FreeBSD.org> <8a139c9c-b98b-4a54-1d7c-0ea1e3dc7a72@freebsd.org> <53a0bd68-a6ba-e8ad-4af2-abeb22e92c03@FreeBSD.org> <E396A0C7-F939-48A1-9B57-D643806B303B@FreeBSD.org> In-Reply-To: <E396A0C7-F939-48A1-9B57-D643806B303B@FreeBSD.org> --l4dnDZyxVlkgmR0LDNyl4Q9W3EtsrSlWI Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: quoted-printable On 20/02/2019 22:32, Jonathan Anderson wrote: > On 20 Feb 2019, at 18:50, Alex Dupre wrote: >=20 >> Colin Percival wrote: >>> Last time I looked at this, we weren't handling hotplug/hotunplug of >>> "NVMe" >>> disks properly on the m5/c5/etc. instances.=C2=A0 I opted to recommen= d the >>> instance >>> which completely works rather than the one with slightly better >>> performance... >> >> It does happen only on a few instances, but I get some freezes on new = t3 >> machines: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D235856 >> >> They are indeed cheaper and more performant, but not 100% reliable in >> every workload. >=20 > https://www.xkcd.com/937 ? >=20 Yes, indeed. That's a very good reason not to recommend the newest and shiniest. I haven't seen any problems so far, but then again it's only been a day or so and we haven't got into the full testing regime quite yet. I'll let you know if we do run into problems. Is there work on hot-plug NVMe going on? ISTR jmg@ mentioning hotplug PCI at the dev summit at Stockholm EuroBSDCon, but not much since then. Cheers, Matthew --l4dnDZyxVlkgmR0LDNyl4Q9W3EtsrSlWI-- --HX6jbUfHfGv6M0EqGuksQH7fZ31yWhQwu Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQKTBAEBCgB9FiEEGfFU7L8RLlBUTj8wAFE/EOCp5OcFAlxuWrBfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDE5 RjE1NEVDQkYxMTJFNTA1NDRFM0YzMDAwNTEzRjEwRTBBOUU0RTcACgkQAFE/EOCp 5OdFuBAAoIlCRpT8xrD4fIB5voinkiSYFd/Y49WBle0Bk7l1Ptg8cb2tVlK/4kvw zOHuJ0kUFw2u1vtiLuKXE25GbVsAdsodbFOWXRgBH8yno8zCqUGueQNLGMi0baWc tzjv8qlzLGKgzc6deEhb7eSTdwyIcYGNSLs69KkMPSTlMX5W6dwAN0deELj5xMpB kIo8x/n7gf+i7IZBWkAOlkRZwF1wlGSBqeZ3Wh+KnVx69NbLjuNJd8iO8f+9/rN/ 3X2+p3iEHzPmvd76p8nOP6hiMBR/3SxGsWNC8Xi0VBENULHZjiIxYlVccKWM45QE 9Aw4r4F+Vq+LCwifRWFtruZpnOqZDmBfLMbWylIDlC3uYMe0PqZEOjMrI+gVtY6U T9X+TWp2X16Or5Bgd5c6vHARFxd3foPE9op0YGLWfpKYhgDoRPNhRIlKFtKC3KFv LCgCtRjZ21hMGeEYSqp47Y0w6CMLAqCECxkqEzt58+7WQA9al4l7KRD5bzCWXUaF awJRN16Jy5ARiubj62UOE6HqG+u4L5PXNFCGcMBkAYC1Uznj+76L0+oME/Tt7iV3 6NxyUaH/iPqE96Ksdgsaek1pssPWoMxzuXyzd4E2QYs6CAFEpy7VM4qtdd9yizMH Ea/WGW9tZokg5ygGP5Uhg5PleUcMW6Bzfxg2JuMRjSozCOqe/U0= =dgNV -----END PGP SIGNATURE----- --HX6jbUfHfGv6M0EqGuksQH7fZ31yWhQwu--
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