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03:37
20/11/2009


Christian Fenneberg

Moderator

posts 17

Post edited 12:51 – 01/12/2009 by Christian Fenneberg
Post edited 12:52 – 01/12/2009 by Christian Fenneberg


Hi all,

After having used too much time on tuning installations all over the country I thought of the old idea Rick Dehlinger had in his original tuning document. I have gathered tips and tricks from colleagues and customers and after doing research on each topic put them into one document. I hope with the help of all of you to make a release once a month as tips are send and verified.

               http://www.dkcug.dk/wp-content…..er_1.0.pdf

Currently the document is in Beta and some sektions are missing completly, but with the help of others these parts will be completed over time.

Please send input to Chr_fenneberg@hotmail.com

Kind regards

Christian

Hej alle,

Efter at have brugt oceaner af tid på at tune diverse installationer kom min hjerne på at samle den viden i et dokument baseret på Rick Dehlingers originale tunings dokument. Jeg har samlet tips og triks fra kollegaer og andre i dokumentet og regner med at lave en “relase” pr. måned.

               http://www.dkcug.dk/wp-content…..er_1.0.pdf

PT. er dokumentet i Beta for der mangler hele sektioner om fx. XenApp (doh) men jeg håber og regner med at i alle kommer med input.

Skriv endelig tilbage på chr_fenneberg@hotmail.com

Mvh

Christian Fenneberg

00:56
25/11/2009


Thomas.Thyregod

København

Member

posts 39

Hej Christian

Jeg er begyndt at kigge på det tuning dokument du har lagt op, og jeg har et spørgsmål til det. Hvordan skal jeg forstå punkt B3? Mener du at man ikke skal have mere end 4gb (3,6gb) ram i sin Citrix server? Eller er det kun gældende for 32-bit OS? For umiddelbart vil jeg da mene at jo mere ram jo bedre. :-)

Det er et super godt dokument. Tak for bidraget.

Mvh

Thomas Thyregod

02:35
25/11/2009


Christian Fenneberg

Moderator

posts 17

Hej Thomas,

Mht. B3

B 3

1

Allocate 3.6 gb ram pr server

(I know this is a strange one, but Citrix is using this number in internal testing as described by Peter Bats)

Due to “hidden” PAE settings taking effect, use ONLY 3.6 gb ram for both virtual and physical memory for optimal performance

http://technet.microsoft.com/e…..10%29.aspx

 

Så var jeg nok lige så overrasket som du ved denne oplysning. Men Citrix har i deres test miljø defineret alle deres virtuelle servere med denne indstilling for at få maksimal (eller bedre) udnyttelse af RAM.

Du kan læse meget mere her:

http://community.citrix.com/pa…..d=73564465

Snip:

since this was about 32-bit XenApp, over-assigning resources produces little benefit to XenApp. The 2 core/3.6GB server size was optimal for this study all the way around.

Håber det giver et nogenlund for for svar.

Mvh

Christian

13:09
25/11/2009


Thomas.Thyregod

København

Member

posts 39

Hej Chrisitan

Det giver helt sikkert stof til eftertanke. Men testen de laver er kun med 32-bit OS. Gad vide hvad resultatet havde været med 64-bit VM OS. Men artiklen lægger jo op til, at man stort set lige meget hvad, vil kunne presse flere brugere ned pr host hvis man laver virtuelle Xenapp servere med kun 3,5gb ram istedet for 1 kraftig server med massere af ram.

Spændende læsning. Tal for linket.

/Thomas

20:32
18/01/2010


Chris

CPH

New Member

posts 1

Hej Christian,

På XenServer kan man godt tilføje flere vcpu'er uden problmer, faktisk anbefaler vi 2 vCPU's på dual og Quadcore systemer.

Der arbejde lige nu på nogle anbefalinger omkring hyperthreading og Intel Nehalem processors, vSphere og Hyper-V R2 og XenApp workloads.

/Christian

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