No the buffer is shared across all protocols. Maybe try tuning the net.ipv4.udp_mem pressure/max? There are some tipc sysctls for memory use aswell..
Or.. buy more ram? ;) //E On Jul 20, 2016 7:37 PM, "Rune Torgersen" <ru...@innovsys.com> wrote: > Makes some sense. > > Thing is we’re doing a LOT of UDP traffic at the same time and not much > TIPC. (about 500Mbit/sec in and 1.2GBitsec out sustained video (1316 byte > packets). > > The TIPC packets are larger than one MTU, so it might have fragmentation > problems finding free SKB’s I guess. > > > > Is there a TIPC specific buffer pool (like there is for UDP and TCP)? > > > > *From:* Erik Hugne [mailto:erik.hu...@gmail.com] > *Sent:* Wednesday, July 20, 2016 11:43 AM > *To:* Rune Torgersen > *Cc:* tipc-discussion@lists.sourceforge.net > *Subject:* Re: [tipc-discussion] ENOMEM > > > > Each send() call will cause a new skb to be allocated from a cache. > the caches are of fixed size, and do not grow (afaik, but the allocator > can pick from higher order pool). > The skbs are reclaimed by the cache when the stack is done with them. > If the cache is exhausted when we call alloc_skb, userspace will get > ENOMEM. > > i think you can check the cache fill level in /proc/slabinfo. other useful > commands are slabtop and slabinfo > > //E > > > > On Jul 20, 2016 5:14 PM, "Rune Torgersen" <ru...@innovsys.com> wrote: > > Hi, just a simple question. > What would make sendto() to a tipc RDM socket (destination being a local > node address) (packet size 18000 to 40000 bytes) return a ENOMEM? > > > ------------------------------------------------------------------------------ > What NetFlow Analyzer can do for you? Monitors network bandwidth and > traffic > patterns at an interface-level. Reveals which users, apps, and protocols > are > consuming the most bandwidth. Provides multi-vendor support for NetFlow, > J-Flow, sFlow and other flows. Make informed decisions using capacity > planning > reports.http://sdm.link/zohodev2dev > _______________________________________________ > tipc-discussion mailing list > tipc-discussion@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/tipc-discussion > ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports.http://sdm.link/zohodev2dev _______________________________________________ tipc-discussion mailing list tipc-discussion@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/tipc-discussion
