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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2022/01/04 19:37:00 UTC

[GitHub] [incubator-nuttx-apps] a-lunev commented on pull request #952: netutils/netcat: implemented NETUTILS_NETCAT_SENDFILE option.

a-lunev commented on pull request #952:
URL: https://github.com/apache/incubator-nuttx-apps/pull/952#issuecomment-1005114071


   > @a-lunev do you have any perf number with/without this feature?
   
   1. CONFIG_NET_TCP_WRITE_BUFFERS=n, CONFIG_NETUTILS_NETCAT_SENDFILE=n, transmitted file size is 500 KB, the payload throughput is 205 Kbit/s.
   
   2.a. CONFIG_NET_TCP_WRITE_BUFFERS=n, CONFIG_NETUTILS_NETCAT_SENDFILE=y, transmitted file size is 500 KB, the payload throughput is 4.1 Mbit/s.
   
   2.b. CONFIG_NET_TCP_WRITE_BUFFERS=n, CONFIG_NETUTILS_NETCAT_SENDFILE=y, transmitted file size is 1000 KB, the payload throughput is 8.19 Mbit/s.
   
   3. CONFIG_NET_TCP_WRITE_BUFFERS=y, CONFIG_NETUTILS_NETCAT_SENDFILE=n, transmitted file size is 500 KB, the payload throughput is 36.7 Kbit/s.
   
   4. CONFIG_NET_TCP_WRITE_BUFFERS=y, CONFIG_NETUTILS_NETCAT_SENDFILE=y, transmitted file size is 500 KB, the payload throughput is 4.1 Mbit/s.
   
   If CONFIG_NETUTILS_NETCAT_SENDFILE=y is enabled, the larger file size, the higher speed.


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