Messages in this thread | | | From | David Laight <> | Subject | RE: [PATCH RFC/RFT net-next 00/17] net: Convert neighbor tables to per-namespace | Date | Thu, 26 Jul 2018 11:12:34 +0000 |
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From: Eric W. Biederman > Sent: 25 July 2018 18:38 ... > >> Further unless I misread something you are increasing the number of > >> timers to 3 per namespace. If I create create a thousand network > >> namespaces that feels like it will hurt system performance overall. > > > > It seems to me the timers are per neighbor entry not table. The per > > table ones are for proxies. > > It seems I misread that bit when I was refreshing my memory on what > everything is doing. If we can already have 1024 timers that makes > timers not a concern.
Surely it is enough to just have a timestamp in each entry. Deletion of expired items need not be done until insert (which has the table suitable locked) bumps into an expired item.
David
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