Date: Fri, 15 Apr 2016 11:30:05 -0600 From: Warner Losh <imp@bsdimp.com> To: Maxim Sobolev <sobomax@freebsd.org> Cc: "Conrad E. Meyer" <cem@freebsd.org>, FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: Heads up Message-ID: <CANCZdfpKmk4%2BmS-xNN0cdCyOb=GN2P5%2BESZpOWwJCTZPkWpm8w@mail.gmail.com> In-Reply-To: <CAH7qZfuA56CxMo9B6-1%2B7hhvugGiAMJG0_O3qW57chesSA_1Kw@mail.gmail.com> References: <CANCZdfpnYnVrvhNagYUT9RhAuC1AMCrxh=GCt8RKT0bqxuJybw@mail.gmail.com> <CAH7qZftspY=i5MaQ6sNg5L5XXBN7gfCuAMO-NZt=7Qp5zo6u_w@mail.gmail.com> <CAG6CVpXKZJFi7f=uxoXbc-MoHwd6JqZMwh-6m%2BGZvJ9JT95ZOA@mail.gmail.com> <CAH7qZfuA56CxMo9B6-1%2B7hhvugGiAMJG0_O3qW57chesSA_1Kw@mail.gmail.com>
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On Fri, Apr 15, 2016 at 11:25 AM, Maxim Sobolev <sobomax@freebsd.org> wrote: > Conrad, yes, you can, but sticking it into FreeBSD source tree IMHO > restricts your options somewhat. If it's your private code you can easily > put F-world into it and nobody obviously cares apart from your co-workers > and your boss. Would probably be considered highly inappropriate by most to > merge it into a public one, so "whatever your like" rule has its limits. > The name isn't obscene or offensive. > Also, apart from being not very suggestive as to what this option actually > does, let's not forget that "Netflix" is probably registered as a trademark > and whatnot in North America at least, if not worldwide. I am not a lawyer, > but I suspect using it might have some ramifications for our ability to > name things using this name. > Probably not. This is a weak argument. It's a descriptive use of the word, and not being used to market or sell video streaming services or DVD rental by mail. > If "SSDNG" is not a good name, I'd suggest coming up with some other name > that is neutral and also has some hints as to its functionality. For > example, CAM_IOCHED_LOW_LAT or something. > Also a horrible name. It's a generic I/O scheduler. It can do lots of things. I keep saying that, and categorically refuse to name the more expansive scheduler anything that's so limiting. Warner > On Fri, Apr 15, 2016 at 9:22 AM, Conrad Meyer <cem@freebsd.org> wrote: > >> Max, >> >> If you implement a new IO scheduler you can name it whatever you like. >> "NG" isn't any more meaningful than "Netflix." >> >> Best, >> Conrad >> >> On Fri, Apr 15, 2016 at 9:13 AM, Maxim Sobolev <sobomax@freebsd.org> >> wrote: >> > Great, work Warner, thanks! Small note, though. The CAM_IOSCHED_NETFLIX >> > seems like a quite poor name for a kernel option. IMHO there is no good >> > reason for polluting it with the name of the company that sponsored the >> > development. I don't think we have any precedents of doing this unless >> the >> > option is related to a piece of hardware that the company makes, and >> it's >> > not the case here. Apart from "coolness" factor as far as I understand >> that >> > _NETFLIX suffix does not give any tangible benefit for anybody reading >> > kernel config and trying to understand what this option actually does. >> > CAM_IOSCHED_SSDNG or something would be better IMHO. Just my $0.02. >> > >> > -Max >> > >> > On Thu, Apr 14, 2016 at 3:42 PM, Warner Losh <imp@bsdimp.com> wrote: >> > >> >> The CAM I/O scheduler has been committed to current. This work is >> described >> >> in https://people.freebsd.org/~imp/bsdcan2015/iosched-v3.pdf though >> the >> >> default scheduler doesn't change the default (old) behavior. >> >> >> >> One possible issue, however, is that it also enables NCQ Trims on ada >> SSDs. >> >> There are a few rogue drives that claim support for this feature, but >> >> actually implement data corrupt instead of queued trims. The list of >> known >> >> rogues is believed to be complete, but some caution is in order. >> >> >> >> Warner >> >> _______________________________________________ >> >> freebsd-current@freebsd.org mailing list >> >> https://lists.freebsd.org/mailman/listinfo/freebsd-current >> >> To unsubscribe, send any mail to " >> freebsd-current-unsubscribe@freebsd.org" >> >> >> >> >> > _______________________________________________ >> > freebsd-current@freebsd.org mailing list >> > https://lists.freebsd.org/mailman/listinfo/freebsd-current >> > To unsubscribe, send any mail to " >> freebsd-current-unsubscribe@freebsd.org" >> >> >
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