Skip to main content
Participant
October 3, 2014
Question

Configure the recorded media cache

  • October 3, 2014
  • 1 reply
  • 228 views

Hello,

I have a Dell R720xd server with 2 x Intel® Xeon® E5-2690 v2 3.00GHz, 25M Cache, 8.0GT/s QPI, 10 Core with 128 GB of 1866MT/s RAM.


OS:

cat /etc/*-release

Red Hat Enterprise Linux Server release 6.5 (Santiago)

The default setup of the ram, cache is currently what is implemented.  I have the following proposal of setup and was wondering if I am on the correct track in these proposed changes.

Amount of RAM available for AMS (R) = RAM size - RAM used by the OS and non-AMS processes

The RAM available for Adobe Media Server is divided among the number of cores started:

Amount of RAM per core (Rc) = Amount of RAM available for AMS (R) / Number of Cores

Out of this, some amount of RAM is used up by the core process, and is not available to the file cache:

Recommended File Cache Size = Amount of RAM per core (Rc) - RAM used by each core process

RAM used by each Adobe Media Server process varies based on load, and there is no exact figure. You can use 512 MB (I am using 1 GB) as a ballpark figure.

The following example attempts to determine a reasonable file cache size:

RAM size = 128 GB – 12 GB for tmpfs = 116 GB

RAM used by OS and non-AMS processes = 17.0 GB (approximately)

Number of AMS core processes allowed = 3

Amount of RAM available for AMS (R) = 116 – 17.0 = 99

Amount of RAM per core (Rc) = 99 / 3 = 33 GB

Recommended file cache size = 33 – 1.0 = 32.0 GB

Another question is whether or not to increase the Number of AMS core processes available.


Any information or tips would be greatly appreciated.  Thanks in advance.

 


 

    This topic has been closed for replies.

    1 reply

    Participant
    October 3, 2014

    AMS is the only task that this servers does, sorry for not putting that in.