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Forum Discussion

Ashish_R_G_2512's avatar
Ashish_R_G_2512
Icon for Nimbostratus rankNimbostratus
Nov 21, 2016

iRule performance effect

Hi,   We have around 700+ VIP's in my environment each serve for different purpose. We are using a public IP for each VIP so that alone will utilize more IP's. We are planning to create a single V...
devops
iRules
LTM
ekaleido's avatar
ekaleido
Icon for Cirrus rankCirrus
Nov 21, 2016

Unless very poorly written (and I mean VERY poorly written), utilizing iRules should not create poor performance.

 

  • Ashish_R_G_2512's avatar
    Ashish_R_G_2512
    Icon for Nimbostratus rankNimbostratus
    Nov 22, 2016

    Hi ekaleido,

    The iRule which I'm going to use will be somewhat similar to below.

    when HTTP_REQUEST {
    if { [HTTP::uri] contains "abc" } {
        use pool pool_1
    }else {
        use pool pool_2
    }
}

    Will this effect the performance of the device?

    Also please note that the iRule for each VIP will be similar to above i.e. each VIP will have a different iRule.

  • ekaleido's avatar
    ekaleido
    Icon for Cirrus rankCirrus
    Nov 22, 2016

    You'll be fine using that iRule over multiple virtual servers. I can't see that creating any performance impact. I've done something similar with 400+ sites.