[TriLUG] tuned tunings

[Lee Fickenscher via TriLUG]

I'm fine with Mongo's recommended settings, I'm just trying to figure out
how to get them all in single tuning file for maintainability and easy
documentation.

On Wed, Nov 23, 2016 at 3:05 PM, Scott Lambdin <lopaki at gmail.com> wrote:

> 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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>> > > Welcome to TriLUG: http://trilug.org/welcome
>> >
>> >
>> > --
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>> --
>> This message was sent to: Scott Lambdin <lopaki at gmail.com>
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>>
>
>
>
> --
>
> Eat like you give a damn.  Go vegan.
>