Date: Tue, 15 Jan 2013 12:10:39 -0800 From: Freddie Cash <fjwcash@gmail.com> To: Yuri <yuri@rawbw.com> Cc: "hackers@freebsd.org" <hackers@freebsd.org> Subject: Re: Is there a way to prioritize disk operations ? Message-ID: <CAOjFWZ4iXEagcgB=CC=Be5uo4vsFqG75Ypx24neey0Kzm2K5Ng@mail.gmail.com> In-Reply-To: <50F5B781.4070501@rawbw.com> References: <50F5B781.4070501@rawbw.com>
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man gsched On Tue, Jan 15, 2013 at 12:09 PM, Yuri <yuri@rawbw.com> wrote: > Currently one can set nice value to the process. But it only affects the > CPU scheduling, so if this process is CPU bound it would yield to others. > What if the process is disk-bound, like some backup operations? The backup > copying large disk seriously affects performance of all other apps > accessing the same disk. > > Is there a way to set the priority value on the process for the disk > operations, so that all disk operations originating from the process will > be scheduled in similar way how CPU is scheduled based on the nice value of > the process? The disk-intense backup process with low disk priority won't > affect the other processes at all. > > Yuri > ______________________________**_________________ > freebsd-hackers@freebsd.org mailing list > http://lists.freebsd.org/**mailman/listinfo/freebsd-**hackers<http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>; > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@** > freebsd.org <freebsd-hackers-unsubscribe@freebsd.org>" > -- Freddie Cash fjwcash@gmail.com
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