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QoS rules ordering performance...

Discussion in 'Tomato Firmware' started by bhlonewolf, Jan 15, 2008.

  1. bhlonewolf

    bhlonewolf LI Guru Member

    Just wondering something about order of rules. I get that with strict ordering, the rules are evaluated in a waterfall manner. I'm wondering if there's a benefit to (whenever possible) stacking the L7 filters to the end of the list. Since the bulk of my traffic falls under the first few rules (by MAC address) I'm not sure if the qos engine just stops evaluating when it finds a match. If so, I'd imagine that it's more performant with many L7 rules to put them at the end unless it is unavoidable.

    Has anyone actually tested this?
     
  2. njeske

    njeske Network Guru Member

    it's my understanding that with strict rule ordering enabled, the matching stops as soon as the first match is found. however, i'm not sure how much of a performance improvement you'd get out of your idea.
     
  3. Kiwi8

    Kiwi8 LI Guru Member

    Yup. Strict Rule Ordering is such that the matching stops as soon as a match is found. So u will have to put the most restrictive of the rules on the top, otherwise they may not be caught.
     

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