[TriLUG] tuned tunings

[Scott Lambdin via TriLUG]

Could you set up a test scenario and profile the various tunes.  Maybe use
a genetic mutation like method of finding the fittest tune.

On Wed, Nov 23, 2016 at 5:57 PM, Lee Fickenscher via TriLUG <
trilug at trilug.org> wrote:

> It's for Mongo, which is why I was looking at the Oracle profile.
> Mongo has a set of suggestions for tuning and it's all over the place.
> I suspect it can all be done with tuned, which is part of their suggestion,
> so I'm trying to get it all in there.
> They want ulimits, blockdev readahead, atimes, and max procs modified. They
> also want transparent huge pages disabled. I already have the THP and
> readahead set. Now I'm looking to get the procs and atime in my tuned
> profile.
>
> -Lee
>
> On Wed, Nov 23, 2016 at 2:28 PM, Matt Pusateri via TriLUG <
> trilug at trilug.org
> > wrote:
>
> > What type of workload are you trying to tune for?
> >
> >
> > > On Nov 23, 2016, at 3:22 PM, Lee Fickenscher via TriLUG <
> > trilug at trilug.org> wrote:
> > >
> > > Hey LUG,
> > > Does anyone have a list of tuned tunings or can suggest where I'd find
> > such
> > > a list?
> > > I perused https://fedorahosted.org/tuned/ and
> https://github.com/redhat-
> > > performance/tuned and haven't really been able to find anything beyond
> > the
> > > statement: "We are currenlty working on many new tuning features. Some
> > are
> > > described in the manual pages, some are yet undocumented." :)
> > >
> > > In particular I'm interested in the tunings in
> > /usr/lib/tuned/oracle/tuned.
> > > conf
> > > #
> > > # tuned configuration
> > > #
> > >
> > > [main]
> > > include=throughput-performance
> > >
> > > [sysctl]
> > > vm.swappiness = 1
> > > vm.dirty_background_ratio = 3
> > > vm.dirty_ratio = 80
> > > vm.dirty_expire_centisecs = 500
> > > vm.dirty_writeback_centisecs = 100
> > > kernel.shmmax = 4398046511104
> > > kernel.shmall = 1073741824
> > > kernel.shmmni = 4096
> > > kernel.sem = 250 32000 100 128
> > > fs.file-max = 6815744
> > > fs.aio-max-nr = 1048576
> > > net.ipv4.ip_local_port_range = 9000 65500
> > > net.core.rmem_default = 262144
> > > net.core.rmem_max = 4194304
> > > net.core.wmem_default = 262144
> > > net.core.wmem_max = 1048576
> > > kernel.panic_on_oops = 1
> > >
> > > TIA!
> > > -Lee
> > > --
> > > This message was sent to: M. Pusateri <mpusateri at wickedtrails.com>
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> >
> >
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