Messages in this thread | | | Date | Thu, 16 Dec 2010 09:52:28 +0800 | Subject | Re: [PATCH 1/3] Kernel interfaces for multiqueue aware socket | From | Junchang Wang <> |
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On Thu, Dec 16, 2010 at 4:48 AM, Eric Dumazet <eric.dumazet@gmail.com> wrote: >> With this patch, the user-space receiving speed on a Intel SR1690 server with >> a single L5640 6-core processor and a single ixgbe-based NIC goes from 0.73Mpps >> to 4.20Mpps, nearly a linear speedup. A Intel SR1625 server two E5530 4-core >> processors and a single ixgbe-based NIC goes from 0.80Mpps to 4.6Mpps. We noticed >> the performance penalty comes from NUMA memory allocation. >> > > ??? please elaborate on these NUMA memory allocations. This should be OK > after commit 564824b0c52c34692d (net: allocate skbs on local node) > Hi Eric, Commit 564824b0c52c34692d had been used in the experiments, but the problem remained unsolved.
SLUB was used, and both servers were equipped with 8G physical memory. Is there any additional information I can provide?
Thanks. -- --Junchang
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