[TriLUG] tuned tunings

[Thomas Delrue via TriLUG]

Are you looking at Mongo because it's web scale? Are you writing to
/dev/null?
(https://www.youtube.com/watch?v=b2F-DItXtZs for those who don't know
what I'm talking about)

*ducks*

On 11/23/2016 05:57 PM, Lee Fickenscher via TriLUG 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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>>

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